# Koshiba Prize

Koshiba Prize (小柴賞, Koshibashō) is an academic prize meant to honor "individuals or a small group of people who have demonstrated outstanding originality and internationally acclaimed achievements in the development of detector technology in the experimental sciences using accelerators." The award was established in 2003 to honor the work of Nobel Laureate Masatoshi Koshiba. Koshiba Prize winners must be under the age of 50, are selected annually and receive a certificate and ¥300,000. The award has been given exclusively to Japanese citizens until 2006, when it was awarded to Kim Sun-kee from Korea.

## Laureates

| Year | Laureate | Institution | Citation |
| 2003 | Kunio Inoue Fumihiko Suetsugu Junpei Shirai | Tohoku University | Development of a large-capacity liquid scintillator detector for observing reactor antineutrino deficit phenomena |
| 2004 | Suyama Motohiro Junji Haba | Hamamatsu Photonics High Energy Accelerator Research Organization | Development of high-speed, high-sensitivity pixel photosensors |
| 2005 | Tanaka Shuji Kim Sun-kee | High Energy Accelerator Research Organization Seoul　National　University | Development, mass production and quality control of the ATLAS experiment muon trigger chamber Development of the Csl(TI) detector for dark matter search |
| 2006 | Satoshi Mihara | High Energy Accelerator Research Organization | Development of a large-scale, high-speed data acquisition system for high-brightness electron-positron collision experiments |
| 2008 | Abe Toshinori Katsuhiko Kawai | University of Tokyo Hamamatsu Photonics | Development of large-aperture hybrid photodetectors |
| 2009 | Wataru Otani | University of Tokyo | Design and construction of the positron spectrometer magnet "COBRA" |
| 2010 | Shoji Uno | High Energy Accelerator Research Organization | Development of neutron and X-ray imaging device using micropattern gas detector |
| 2011 | - | - | - |
| 2012 | Tomohisa Uchida | High Energy Accelerator Research Organization | Research and development of a high-speed data acquisition system using a hardware-based communication control device |
| 2013 | - | - | - |
| 2014 | Nishiguchi So | High Energy Accelerator Research Organization | Development of an extremely low mass wire track detector for muon rare decay experiments |
| 2015 | Kenichi Sato Terumasa Nagano Shogo Kamakura Ryuta Yamada | Hamamatsu Photonics | Improvement of Multi-Pixel Photon Counter (MPPC) |
| 2016 | Kenji Inami | Kobe University | Development of New Particle Identification Detector “TOP Counter |
| 2017 | Takaki Hatsui | Institute of Physical and Chemical Research High Energy Accelerator Research Organization | Development of wide dynamic range X-ray image sensor with SOI technology Development and application of high multiplicity positron detector Kalliope system |
| 2018 | - | - | - |
| 2019 | Masahiro Kotani Terunori Kawai | Hamamatsu Photonics | Development of Box & Line type 20 inch photomultiplier tube for Hyper-Kamiokande |
| 2020 | - | - | - |
| 2021 | Mitsuhiro Nakamura Toshiyuki Nakano | Institute of Materials and Systems for Sustainability Nagoya University | Innovation on nuclear emulsion method for various experiments |
| 2022 | Masato Takita Takashi Kameshima | University of Tokyo Japan Synchrotron Radiation Research Institute | Establishment of the sub-PeV gamma ray astronomy by an air shower detector array with a water Cherenkov muon detector Development of quasi-diffraction-limited resolution X-ray imaging detector equipped with diffusion-free transparent scintillator |
| 2023 | Koji Miwa | Tohoku University | Development of the experimental method for hyperon-proton scattering using recoil proton detector system (CATCH) |