Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Akiruno, JP ranks #4,426 worldwide for total patents filed all time, with 625 patents from 83 inventors. Leading employers of inventors based in Akiruno, JP include Hamamatsu Photonics K.K., Canon, Sophia School.

Showing 1–50 of 83 inventors

Rank Inventor Primary Company Patents
1 Mitsuhiro Ito Hamamatsu Photonics K.K. 75
2 Masahiko Okunuki Canon 74
3 Katsumi Kishino Sophia School 36
#4 Kiyoshi Ogishima Sharp Kabushiki Kaisha 34
#5 Dai Kanai Canon 27
#6 Naoki Odate Fujitsu Limited 24
#7 Takafumi Kubo Olympus 18
#8 Tatsuhiko OKITA Olympus 15
#9 Hiroshi Toyoshima Renesas Technology 14
#10 Shinya Takasumi Olympus 13
#11 Takashi Mihori Olympus Medical Systems 12
#12 Mitsuru Okano Casio Computer Co. 11
#12 Ko Kimura Olympus 11
#12 Shinichi Horibe Hitachi Ulsi Systems Co. 11
#12 Mitsuru Onodera Fujitsu Semiconductor Limited 11
#12 Yoshimi Sudo Japan Styrene Paper 11
#17 Takayuki Hirotani Casio Computer Co. 10
#17 Yoshimi Sudou Renesas Technology 10
#19 Yuichi WATAYA Olympus 9
#20 Haruo Kajitani Casio Computer Co. 8
#20 Shinji Yamaura Fujitsu Limited 8
#20 Fumio Miyano Shinkawa 8
#20 Toshinao Aruga Olympus 8
#20 Mayumi ODAIRA Olympus 8
#25 Takaomi Yonekura Casio Computer Co. 7
#25 Naoyuki Shibata Toyota 7
#27 Kei Irie Olympus 6
#27 Miyuki URANO Casio Computer Co. 6
#27 Tooru Mamata Kabushiki Kaisha Toshiba 6
#27 Mitsufumi Naoe Fujitsu Semiconductor Limited 6
#27 Masaaki Komiya Olympus Optical Co. 6
#27 Yukihiro Izumitani Hoya 6
#33 Shinsuke KANEKI Olympus 5
#33 Yukihiko Nishimoto Konica 5
#33 Hisashi Arai Shinkawa 5
#33 Youichi Ono Konica Minolta 5
#37 Keisuke Yoshikuni Hoya 4
#37 Masahiko SEKIGUCHI Olympus 4
#37 Hideyoshi Yamauchi Olympus 4
#37 Hisanori Tani Morinda 4
#37 Tatsuro Masugi Olympus 4
#37 Yoichiro Kasai Olympus 4
#43 Toru Mamata Kabushiki Kaisha Toshiba 3
#43 Tomoo Katauri Kabushiki Kaisha Toshiba 3
#43 Maki MATSUNAGA Olympus 3
#43 Ryo MAKINO Hamamatsu Photonics K.K. 3
#43 Ryoichi Inagawa Socionext 3
#43 Akihito Miyata Olympus 3
#43 Toshikatsu Shiozaki Olympus 3
#50 Kenji Chichii Fujitsu Microelectronics Limited 2