Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Mitaka, JP ranks #1,182 worldwide for total patents filed all time, with 2,845 patents from 611 inventors. Leading employers of inventors based in Mitaka, JP include Musashi Engineering, Hitachi, Yazaki.

Showing 1–50 of 611 inventors

Rank Inventor Primary Company Patents
1 Kazumasa Ikushima Musashi Engineering 115
2 Hiroyuki Shinada Hitachi 79
3 Kazuhiko Takada Yazaki 68
#4 Jumpei Tajima Kabushiki Kaisha Toshiba 46
#5 Takeshi Honjo Canon 45
#6 Noboru Ueda Konica Minolta 42
#7 Koichiro Yoshino Olympus 41
#8 Hideo Ishikawa Daido Metal Company 39
#9 Masafumi Oikawa Nikon 38
#10 Tsuneo Uwabo Mitsumi Electric Co. 34
#11 Tatsuya Takagi Konica Minolta 31
#11 Hajime Kobayashi Sony 31
#13 Maki Yonetsu Kabushiki Kaisha Toshiba 30
#13 Masakazu Kanatani Sony 30
#15 Yoshihiko Takeuchi Yamaha Motor 29
#15 Kohei Momosaki Kabushiki Kaisha Toshiba 29
#17 Masao Wada Casio Computer Co. 27
#17 Norihiro Tomimatsu Kabushiki Kaisha Toshiba 27
#17 Akitoshi Oikawa Sega Enterprises 27
#20 Keito Fukushima Olympus 26
#21 Toshiya Yuasa Canon 25
#22 Naohiro Kageyama Minolta 23
#22 Yoshihisa Koyama Victor Company Of Japan 23
#22 Minoru Numoto Tokyo Seimitsu Co. 23
#25 Masaru Murashita Hitachi Aloka Medical 21
#25 Fumitaka Mochizuki Konica 21
#27 Shuji Shibuki Casio Keisanki 20
#28 Tomoya Makino Toyota 19
#29 Setsuo Soga Ricoh Company 18
#29 Seiichiro Hirata Mitsubishi Electric 18
#31 Motohiro Gotanda 16
#31 Takuya Yamamura Mitsubishi Motors 16
#31 Hiroshi Ooi Sharp Kabushiki Kaisha 16
#31 Ryoichi Sakai Hitachi Aloka Medical 16
#31 Tomohiro Sanpei Toshiba Lighting & Technology 16
#36 Masaji Ozaki Jamco 15
#37 Shuichiro Kaneko Konica Minolta 14
#37 Hiromi Yatsuda Japan Radio Co. 14
#37 Soichiro KOSHIKA Olympus 14
#37 Yutaka Horie Kabushiki Kaisha Toshiba 14
#37 Yuriko Igarashi Kureha Kagaku Kogyo 14
#42 Tomoaki Chono Hitachi Medical 13
#42 Teruo Iwasawa Olympus Optical Co. 13
#42 Katsuo Honda Tokyo Seimitsu Co. 13
#42 Seisuke Yamanaka Sony 13
#42 Naoki Ohtomo Aloka Co. 13
#42 Shigeru Motoki Toshiba Lighting & Technology 13
#42 Yutaka Masaki Olympus 13
#49 Katsuyoshi Kawasaki Honda Motor Co. 12
#49 Yosuke Mizutani Honda Motor Co. 12