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The Hyper Suprime-Cam SSP Survey: Overview and Survey Design

Hyper Suprime-Cam (HSC) is a wide-field imaging camera on the prime focus of the 8.2m Subaru telescope on the summit of Maunakea in Hawaii. A team of scientists from Japan, Taiwan and Princeton University is using HSC to carry out a…

天体物理仪器与方法 · 物理学 2018-03-16 H. Aihara , N. Arimoto , R. Armstrong , S. Arnouts , N. A. Bahcall , S. Bickerton , J. Bosch , K. Bundy , P. L. Capak , J. H. H. Chan , M. Chiba , J. Coupon , E. Egami , M. Enoki , F. Finet , H. Fujimori , S. Fujimoto , H. Furusawa , J. Furusawa , T. Goto , A. Goulding , J. P. Greco , J. E. Greene , J. E. Gunn , T. Hamana , Y. Harikane , Y. Hashimoto , T. Hattori , M. Hayashi , Y. Hayashi , K. G. Hełminiak , R. Higuchi , C. Hikage , P. T. P. Ho , B. -C. Hsieh , K. Huang , S. Huang , H. Ikeda , M. Imanishi , A. K. Inoue , K. Iwasawa , I. Iwata , A. T. Jaelani , H. -Y. Jian , Y. Kamata , H. Karoji , N. Kashikawa , N. Katayama , S. Kawanomoto , I. Kayo , J. Koda , M. Koike , T. Kojima , Y. Komiyama , A. Konno , S. Koshida , Y. Koyama , H. Kusakabe , A. Leauthaud , C. -H. Lee , L. Lin , Y. -T. Lin , R. H. Lupton , R. Mandelbaum , Y. Matsuoka , E. Medezinski , S. Mineo , S. Miyama , H. Miyatake , S. Miyazaki , R. Momose , A. More , S. More , Y. Moritani , T. J. Moriya , T. Morokuma , S. Mukae , R. Murata , H. Murayama , T. Nagao , F. Nakata , M. Niida , H. Niikura , A. J. Nishizawa , Y. Obuchi , M. Oguri , Y. Oishi , N. Okabe , Y. Okura , Y. Ono , M. Onodera , M. Onoue , K. Osato , M. Ouchi , P. A. Price , T. -S. Pyo , M. Sako , S. Okamoto , M. Sawicki , T. Shibuya , K. Shimasaku , A. Shimono , M. Shirasaki , J. D. Silverman , M. Simet , J. Speagle , D. N. Spergel , M. A. Strauss , Y. Sugahara , N. Sugiyama , Y. Suto , S. H. Suyu , N. Suzuki , P. J. Tait , T. Takata , M. Takada , N. Tamura , M. M. Tanaka , M. Tanaka , M. Tanaka , Y. Tanaka , T. Terai , Y. Terashima , Y. Toba , J. Toshikawa , E. L. Turner , T. Uchida , H. Uchiyama , K. Umetsu , F. Uraguchi , Y. Urata , T. Usuda , Y. Utsumi , S. -Y. Wang , W. -H. Wang , K. C. Wong , K. Yabe , Y. Yamada , H. Yamanoi , N. Yasuda , S. Yeh , A. Yonehara , S. Yuma

Subaru Surveys for High-z Galaxies

We present a summary of optical/NIR deep surveys for very high-$z$ galaxies using the 8.2m Subaru Telescope operated by National Astronomical Observatory of Japan. The prime focus mosaic CCD camera, Suprime-Cam, with a very wide field of…

天体物理学 · 物理学 2007-05-23 Yoshiaki Taniguchi

The Subaru COSMOS 20: Subaru Optical Imaging of the HST COSMOS Field with 20 Filters

We present both the observations and the data reduction procedures of the Subaru COSMOS 20 project that is an optical imaging survey of the HST COSMOS field, carried out by using Suprime-Cam on the Subaru Telescope with the following 20…

星系天体物理 · 物理学 2015-11-18 Y. Taniguchi , M. Kajisawa , M. A. R. Kobayashi , Y. Shioya , T. Nagao , P. Capak , H. Aussel , A. Ichikawa , T. Murayama , N. Scoville , O. Ilbert , M. Salvato , D. B. Sanders , B. Mobasher , S. Miyazaki , Y. Komiyama , O. Le Fevre , L. Tasca , S. Lilly , M. Carollo , A. Renzini , M. Rich , E. Schinnerer , N. Kaifu , H. Karoji , N. Arimoto , S. Okamura , K. Ohta , K. Shimasaku , T. Hayashino

Subaru Prime Focus Camera -- Suprime-Cam --

We have built an 80-mega pixels (10240 X 8192) mosaic CCD camera, called Suprime-Cam, for the wide-field prime focus of the 8.2 m Subaru telescope. Suprime-Cam covers a field of view 34' X 27', a unique facility among the the 8-10 m class…

天体物理学 · 物理学 2015-06-24 Satoshi Miyazaki , Yutaka Komiyama , Maki Sekiguchi , Sadanori Okamura , Mamoru Doi , Hisanori Furusawa , Masaru Hamabe , Katsumi Imi , Masahiki Kimura , Fumiaki Nakata , Norio Okada , Masami Ouchi , Kazuhiro Shimasaku , Masafumi Yagi , Naoki Yasuda

Second Data Release of the Hyper Suprime-Cam Subaru Strategic Program

This paper presents the second data release of the Hyper Suprime-Cam Subaru Strategic Program, a wide-field optical imaging survey on the 8.2 meter Subaru Telescope. The release includes data from 174 nights of observation through January…

天体物理仪器与方法 · 物理学 2019-11-06 Hiroaki Aihara , Yusra AlSayyad , Makoto Ando , Robert Armstrong , James Bosch , Eiichi Egami , Hisanori Furusawa , Junko Furusawa , Andy Goulding , Yuichi Harikane , Chiaki Hikage , Paul T. P. Ho , Bau-Ching Hsieh , Song Huang , Hiroyuki Ikeda , Masatoshi Imanishi , Kei Ito , Ikuru Iwata , Anton T. Jaelani , Ryota Kakuma , Kojiro Kawana , Satoshi Kikuta , Umi Kobayashi , Michitaro Koike , Yutaka Komiyama , Xiangchong Li , Yongming Liang , Yen-Ting Lin , Wentao Luo , Robert Lupton , Nate B. Lust , Lauren A. MacArthur , Yoshiki Matsuoka , Sogo Mineo , Hironao Miyatake , Satoshi Miyazaki , Surhud More , Ryoma Murata , Shigeru V. Namiki , Atsushi J. Nishizawa , Masamune Oguri , Nobuhiro Okabe , Sakurako Okamoto , Yuki Okura , Yoshiaki Ono , Masato Onodera , Masafusa Onoue , Ken Osato , Masami Ouchi , Takatoshi Shibuya , Michael A. Strauss , Naoshi Sugiyama , Yasushi Suto , Masahiro Takada , Yuhei Takagi , Tadafumi Takata , Satoshi Takita , Masayuki Tanaka , Tsuyoshi Terai , Yoshiki Toba , Hisakazu Uchiyama , Yousuke Utsumi , Shiang-Yu Wang , Wenting Wang , Yoshihiko Yamada

The Hyper Suprime-Cam Software Pipeline

In this paper, we describe the optical imaging data processing pipeline developed for the Subaru Telescope's Hyper Suprime-Cam (HSC) instrument. The HSC Pipeline builds on the prototype pipeline being developed by the Large Synoptic Survey…

天体物理仪器与方法 · 物理学 2018-02-14 James Bosch , Robert Armstrong , Steven Bickerton , Hisanori Furusawa , Hiroyuki Ikeda , Michitaro Koike , Robert Lupton , Sogo Mineo , Paul Price , Tadafumi Takata , Masayuki Tanaka , Naoki Yasuda , Yusra AlSayyad , Andrew C. Becker , William Coulton , Jean Coupon , Jose Garmilla , Song Huang , K. Simon Krughoff , Dustin Lang , Alexie Leauthaud , Kian-Tat Lim , Nate B. Lust , Lauren A. MacArthur , Rachel Mandelbaum , Hironao Miyatake , Satoshi Miyazaki , Ryoma Murata , Surhud More , Yuki Okura , Russell Owen , John D. Swinbank , Michael A. Strauss , Yoshihiko Yamada , Hitomi Yamanoi

The Subaru/XMM-Newton Deep Survey (SXDS) - II. Optical Imaging and Photometric Catalogs

We present multi-waveband optical imaging data obtained from observations of the Subaru/XMM-Newton Deep Survey (SXDS). The survey field, centered at R.A.=02:18:00, decl.=-05:00:00, has been the focus of a wide range of multi-wavelength…

天体物理学 · 物理学 2009-11-13 H. Furusawa , G. Kosugi , M. Akiyama , T. Takata , K. Sekiguchi , I. Tanaka , I. Iwata , M. Kajisawa , N. Yasuda , M. Doi , M. Ouchi , C. Simpson , K. Shimasaku , T. Yamada , J. Furusawa , T. Morokuma , C. M. Ishida , K. Aoki , T. Fuse , M. Imanishi , M. Iye , H. Karoji , N. Kobayashi , T. Kodama , Y. Komiyama , Y. Maeda , S. Miyazaki , Y. Mizumoto , F. Nakata , J. Noumaru , R. Ogasawara , S. Okamura , T. Saito , T. Sasaki , Y. Ueda , M. Yoshida

Subaru Telescope -- History, Active/Adaptive Optics, Instruments, and Scientific Achievements

The Subaru Telescope is an 8.2 m optical/infrared telescope constructed during 1991--1999 and has been operational since 2000 on the summit area of Maunakea, Hawaii, by the National Astronomical Observatory of Japan (NAOJ). This paper…

天体物理仪器与方法 · 物理学 2021-09-01 Masanori Iye

Prime Focus Spectrograph - Subaru's future -

The Prime Focus Spectrograph (PFS) of the Subaru Measurement of Images and Redshifts (SuMIRe) project has been endorsed by Japanese community as one of the main future instruments of the Subaru 8.2-meter telescope at Mauna Kea, Hawaii. This…

天体物理仪器与方法 · 物理学 2012-10-11 Hajime Sugai , Hiroshi Karoji , Naruhisa Takato , Naoyuki Tamura , Atsushi Shimono , Youichi Ohyama , Akitoshi Ueda , Hung-Hsu Ling , Marcio Vital de Arruda , Robert H. Barkhouser , Charles L. Bennett , Steve Bickerton , David F. Braun , Robin J. Bruno , Michael A. Carr , João Batista de Carvalho Oliveira , Yin-Chang Chang , Hsin-Yo Chen , Richard G. Dekany , Tania Pereira Dominici , Richard S. Ellis , Charles D. Fisher , James E. Gunn , Timothy M. Heckman , Paul T. P. Ho , Yen-Shan Hu , Marc Jaquet , Jennifer Karr , Masahiko Kimura , Olivier Le Fèvre , David Le Mignant , Craig Loomis , Robert H. Lupton , Fabrice Madec , Lucas Souza Marrara , Laurent Martin , Hitoshi Murayama , Antonio Cesar de Oliveira , Claudia Mendes de Oliveira , Ligia Souza de Oliveira , Joe D. Orndorff , Rodrigo de Paiva Vilaça , Vanessa Bawden de Paula Macanhan , Eric Prieto , Jesulino Bispo dos Santos , Michael D. Seiffert , Stephen A. Smee , Roger M. Smith , Laerte Sodré , David N. Spergel , Christian Surace , Sebastien Vives , Shiang-Yu Wang , Chi-Hung Yan

Third Data Release of the Hyper Suprime-Cam Subaru Strategic Program

The paper presents the third data release of Hyper Suprime-Cam Subaru Strategic Program (HSC-SSP), a wide-field multi-band imaging survey with the Subaru 8.2m telescope. HSC-SSP has three survey layers (Wide, Deep, and UltraDeep) with…

天体物理仪器与方法 · 物理学 2022-02-23 Hiroaki Aihara , Yusra AlSayyad , Makoto Ando , Robert Armstrong , James Bosch , Eiichi Egami , Hisanori Furusawa , Junko Furusawa , Sumiko Harasawa , Yuichi Harikane , Bau-Ching Hsieh , Hiroyuki Ikeda , Kei Ito , Ikuru Iwata , Tadayuki Kodama , Michitaro Koike , Mitsuru Kokubo , Yutaka Komiyama , Xiangchong Li , Yongming Liang , Yen-Ting Lin , Robert H. Lupton , Nate B Lust , Lauren A. MacArthur , Ken Mawatari , Sogo Mineo , Hironao Miyatake , Satoshi Miyazaki , Surhud More , Takahiro Morishima , Hitoshi Murayama , Kimihiko Nakajima , Fumiaki Nakata , Atsushi J. Nishizawa , Masamune Oguri , Nobuhiro Okabe , Yuki Okura , Yoshiaki Ono , Ken Osato , Masami Ouchi , Yen-Chen Pan , Andrés A. Plazas Malagón , Paul A. Price , Sophie L Reed , Eli S. Rykoff , Takatoshi Shibuya , Mirko Simunovic , Michael A. Strauss , Kanako Sugimori , Yasushi Suto , Nao Suzuki , Masahiro Takada , Yuhei Takagi , Tadafumi Takata , Satoshi Takita , Masayuki Tanaka , Shenli Tang , Dan S. Taranu , Tsuyoshi Terai , Yoshiki Toba , Edwin L. Turner , Hisakazu Uchiyama , Bovornpratch Vijarnwannaluk , Christopher Z Waters , Yoshihiko Yamada , Naoaki Yamamoto , Takuji Yamashita

First Data Release of the Hyper Suprime-Cam Subaru Strategic Program

The Hyper Suprime-Cam Subaru Strategic Program (HSC-SSP) is a three-layered imaging survey aimed at addressing some of the most outstanding questions in astronomy today, including the nature of dark matter and dark energy. The survey has…

天体物理仪器与方法 · 物理学 2018-02-14 Hiroaki Aihara , Robert Armstrong , Steven Bickerton , James Bosch , Jean Coupon , Hisanori Furusawa , Yusuke Hayashi , Hiroyuki Ikeda , Yukiko Kamata , Hiroshi Karoji , Satoshi Kawanomoto , Michitaro Koike , Yutaka Komiyama , Robert H. Lupton , Sogo Mineo , Hironao Miyatake , Satoshi Miyazaki , Tomoki Morokuma , Yoshiyuki Obuchi , Yukie Oishi , Yuki Okura , Paul A. Price , Tadafumi Takata , Manobu M. Tanaka , Masayuki Tanaka , Yoko Tanaka , Tomohisa Uchida , Fumihiro Uraguchi , Yousuke Utsumi , Shiang-Yu Wang , Yoshihiko Yamada , Hitomi Yamanoi , Naoki Yasuda , Nobuo Arimoto , Masashi Chiba , Francois Finet , Hiroki Fujimori , Seiji Fujimoto , Junko Furusawa , Tomotsugu Goto , Andy Goulding , James E. Gunn , Yuichi Harikane , Takashi Hattori , Masao Hayashi , Krzysztof G. Helminiak , Ryo Higuchi , Chiaki Hikage , Paul T. P. Ho , Bau-Ching Hsieh , Kuiyun Huang , Song Huang , Masatoshi Imanishi , Ikuru Iwata , Anton T. Jaelani , Hung-Yu Jian , Nobunari Kashikawa , Nobuhiko Katayama , Takashi Kojima , Akira Konno , Shintaro Koshida , Haruka Kusakabe , Alexie Leauthaud , C. -H. Lee , Lihwai Lin , Yen-Ting Lin , Rachel Mandelbaum , Yoshiki Matsuoka , Elinor Medezinski , Shoken Miyama , Rieko Momose , Anupreeta More , Surhud More , Shiro Mukae , Ryoma Murata , Hitoshi Murayama , Tohru Nagao , Fumiaki Nakata , Hiroko Niikura , Atsushi J. Nishizawa , Masamune Oguri , Nobuhiro Okabe , Yoshiaki Ono , Masato Onodera , Masafusa Onoue , Masami Ouchi , Tae-Soo Pyo , Takatoshi Shibuya , Kazuhiro Shimasaku , Melanie Simet , Joshua Speagle , David N. Spergel , Michael A. Strauss , Yuma Sugahara , Naoshi Sugiyama , Yasushi Suto , Nao Suzuki , Philip J. Tait , Masahiro Takada , Tsuyoshi Terai , Yoshiki Toba , Edwin L. Turner , Hisakazu Uchiyama , Keiichi Umetsu , Yuji Urata , Tomonori Usuda , Sherry Yeh , Suraphong Yuma

The Hyper Suprime-Cam SSP Transient Survey in COSMOS: Overview

We present an overview of a deep transient survey of the COSMOS field with the Subaru Hyper Suprime-Cam (HSC). The survey was performed for the 1.77 deg$^2$ ultra-deep layer and 5.78 deg$^2$ deep layer in the Subaru Strategic Program over…

星系天体物理 · 物理学 2019-06-05 Naoki Yasuda , Masaomi Tanaka , Nozomu Tominaga , Ji-an Jiang , Takashi J. Moriya , Tomoki Morokuma , Nao Suzuki , Ichiro Takahashi , Masaki S. Yamaguchi , Keiichi Maeda , Masao Sako , Shiro Ikeda , Akisato Kimura , Mikio Morii , Naonori Ueda , Naoki Yoshida , Chien-Hsiu Lee , Sherry H. Suyu , Yutaka Komiyama , Nicolas Regnault , David Rubin

The Subaru Deep Field: The Optical Imaging Data

The Subaru Deep Field (SDF) project is a program of Subaru Observatory to carry out a deep galaxy survey over a blank field as large as 34'x27'. The program consists of very deep multi-band optical imaging, near infrared imaging for smaller…

天体物理学 · 物理学 2015-06-24 N. Kashikawa , K. Shimasaku , N. Yasuda , M. Ajiki , M. Akiyama , H. Ando , K. Aoki , M. Doi , S. S. Fujita , H. Furusawa , T. Hayashino , F. Iwamuro , M. Iye , H. Karoji , N. Kobayashi , K. Kodaira , T. Kodama , Y. Komiyama , Y. Matsuda , S. Miyazaki , Y. Mizumoto , T. Morokuma , K. Motohara , T. Murayama , T. Nagao , K. Nariai , K. Ohta , S. Okamura , M. Ouchi , T. Sasaki , Y. Sato , K. Sekiguchi , Y. Shioya , H. Tamura , Y. Taniguchi , M. Umemura , T. Yamada , M. Yoshida

Subaru Hyper Suprime-Cam excavates colossal over- and under-dense structures over 360 deg2 out to z=1

Subaru Strategic Program with the Hyper-Suprime Cam (HSC-SSP) has proven to be successful with its extremely-wide area coverage in past years. Taking advantages of this feature, we report initial results from exploration and research of…

宇宙学与河外天体物理 · 物理学 2021-03-24 Rhythm Shimakawa , Yuichi Higuchi , Masato Shirasaki , Masayuki Tanaka , Yen-Ting Lin , Masao Hayashi , Rieko Momose , Chien-Hsiu Lee , Haruka Kusakabe , Tadayuki Kodama , Naoaki Yamamoto

Prime Focus Spectrograph (PFS) for the Subaru Telescope: Overview, recent progress, and future perspectives

PFS (Prime Focus Spectrograph), a next generation facility instrument on the 8.2-meter Subaru Telescope, is a very wide-field, massively multiplexed, optical and near-infrared spectrograph. Exploiting the Subaru prime focus, 2394…

天体物理仪器与方法 · 物理学 2016-12-14 Naoyuki Tamura , Naruhisa Takato , Atsushi Shimono , Yuki Moritani , Kiyoto Yabe , Yuki Ishizuka , Akitoshi Ueda , Yukiko Kamata , Hrand Aghazarian , Stephane Arnouts , Gabriel Barban , Robert H. Barkhouser , Renato C. Borges , David F. Braun , Michael A. Carr , Pierre-Yves Chabaud , Yin-Chang Chang , Hsin-Yo Chen , Masashi Chiba , Richard C. Y. Chou , You-Hua Chu , Judith G. Cohen , Rodrigo P. de Almeida , Antonio C. de Oliveira , Ligia S. de Oliveira , Richard G. Dekany , Kjetil Dohlen , Jesulino B. dos Santos , Leandro H. dos Santos , Richard S. Ellis , Maximilian Fabricius , Didier Ferrand , Decio Ferreira , Mirek Golebiowski , Jenny E. Greene , Johannes Gross , James E. Gunn , Randolph Hammond , Albert Harding , Murdock Hart , Timothy M. Heckman , Christopher M. Hirata , Paul Ho , Stephen C. Hope , Larry Hovland , Shu-Fu Hsu , Yen-Shan Hu , Ping-Jie Huang , Marc Jaquet , Yipeng Jing , Jennifer Karr , Masahiko Kimura , Matthew E. King , Eiichiro Komatsu , Vincent Le Brun , Olivier Le Fevre , Arnaud Le Fur , David Le Mignant , Hung-Hsu Ling , Craig P. Loomis , Robert H. Lupton , Fabrice Madec , Peter Mao , Lucas S. Marrara , Claudia Mendes de Oliveira , Yosuke Minowa , Chaz N. Morantz , Hitoshi Murayama , Graham J. Murray , Youichi Ohyama , Joseph Orndorff , Sandrine Pascal , Jefferson M. Pereira , Daniel J. Reiley , Martin Reinecke , Andreas Ritter , Mitsuko Roberts , Mark A. Schwochert , Michael D. Seiffert , Stephen A. Smee , Laerte Sodre , David N. Spergel , Aaron J. Steinkraus , Michael A. Strauss , Christian Surace , Yasushi Suto , Nao Suzuki , John Swinbank , Philip J. Tait , Masahiro Takada , Tomonori Tamura , Yoko Tanaka , Laurence Tresse , Orlando Verducci , Didier Vibert , Clement Vidal , Shiang-Yu Wang , Chih-Yi Wen , Chi-Hung Yan , Naoki Yasuda

Current Performance and On-Going Improvements of the 8.2 m Subaru Telescope

An overview of the current status of the 8.2 m Subaru Telescope constructed and operated at Mauna Kea, Hawaii, by the National Astronomical Observatory of Japan is presented. The basic design concept and the verified performance of the…

天体物理学 · 物理学 2015-06-24 Masanori Iye , Hiroshi Karoji , Hiroyasu Ando , Norio Kaifu , Keiichi Kodaira

Machine-learning Selection of Optical Transients in Subaru/Hyper Suprime-Cam Survey

We present an application of machine-learning (ML) techniques to source selection in the optical transient survey data with Hyper Suprime-Cam (HSC) on the Subaru telescope. Our goal is to select real transient events accurately and in a…

天体物理仪器与方法 · 物理学 2016-10-26 Mikio Morii , Shiro Ikeda , Nozomu Tominaga , Masaomi Tanaka , Tomoki Morokuma , Katsuhiko Ishiguro , Junji Yamato , Naonori Ueda , Naotaka Suzuki , Naoki Yasuda , Naoki Yoshida

Hyper Suprime-Cam Legacy Archive

We present the launch of the Hyper Suprime-Cam Legacy Archive (HSCLA), a public archive of processed, science-ready data from Hyper Suprime-Cam (HSC). HSC is an optical wide-field imager installed at the prime focus of the Subaru Telescope…

天体物理仪器与方法 · 物理学 2021-05-19 Masayuki Tanaka , Hiroyuki Ikeda , Kazumi Murata , Satoshi Takita , Sogo Mineo , Michitaro Koike , Yuki Okura , Sumiko Harasawa

The Subaru-Asahi StarCam: Description of the system

The Subaru-Asahi StarCam is a high-sensitivity live-streaming camera for meteor observation, installed on the dome of the Subaru Telescope at the summit area of Maunakea, Hawai'i. Although it was originally intended to share the Maunakea…

天体物理仪器与方法 · 物理学 2025-08-04 Ichi Tanaka , Masanobu Higashiyama , Masayo Nakajima , Toyokazu Uda , Hitoshi Hasegawa , Mikiya Sato , Jun-ichi Watanabe

Deep Optical Imaging of the COSMOS Field with Hyper Suprime-Cam Using Data from the Subaru Strategic Program and the University of Hawaii

We present the deepest optical images of the COSMOS field based on a joint dataset taken with Hyper Suprime-Cam (HSC) by the HSC Subaru Strategic Program (SSP) team and the University of Hawaii (UH). The COSMOS field is one of the key…

星系天体物理 · 物理学 2017-06-05 Masayuki Tanaka , Guenther Hasinger , John D. Silverman , Steven Bickerton , Hisanori Furusawa , Yuichi Harikane , Esther Hu , Hiroyuki Ikeda , Yanxia Li , Henry J. McCracken , Paul A. Price , Michael A. Strauss , Michitaro Koike , Yutaka Komiyama , Sogo Mineo , Satoshi Miyazaki , Atsushi J. Nishizawa , Tadafumi Takata , Yousuke Utsumi , Yoshihiko Yamada , Naoki Yasuda