Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Okazaki, JP ranks #200 worldwide for total patents filed all time, with 14,403 patents from 2,010 inventors. Leading employers of inventors based in Okazaki, JP include Toyota, Tokyo Electron Limited, Sae Magnetics (H.K.).

Showing 1–50 of 2,010 inventors

Rank Inventor Primary Company Patents
1 Atsushi Tabata Toyota 439
2 Makoto Nakamura Toyota 316
3 Hiroyuki Nakayama Tokyo Electron Limited 172
#4 Tatsuya Imamura Toyota 150
#5 Tatsuya Shimizu Sae Magnetics (H.K.) 121
#6 Yuji Fujita Jtekt 111
#7 Atsushi Umeda Denso 104
#8 Hiromichi Kimura Toyota 93
#9 Mitsuo Inagaki Nippon Soken 91
#10 Masao Sasaki Sony 89
#11 Yasuhiro Sasaki Nec 86
#11 Hideo Matsunaga Bridgestone Sports Co. 86
#13 Akira Nakano Alps Electric Co. 85
#14 Yuichi Seki Aisin Aw Co. 81
#14 Hideaki Ishihara Denso 81
#16 Yoshinori Okada Ricoh Company 80
#17 Minoru Nishida Mitsubishi Electric 79
#18 Toshihiro Hattori Denso 77
#19 Akinari Ishibe Brother Kogyo 73
#20 Masayuki Iijima Dai Nippon Printing Co. 72
#20 Sumio Tanaka Kabushiki Kaisha Toshiba 72
#22 Kenji Kido Toyota 60
#23 Shigeki Iwanami Denso 59
#23 Hiroshi Kuwahara Hitachi 59
#25 Suguru Tomoguchi Brother Kogyo 57
#25 Yasuhiro Shibata Brother Kogyo 57
#27 Fumio Nakazawa Brother Kogyo 56
#27 Hiroyuki Tachibana Sumitomo Electric Industries 56
#27 Kazuhiro Arai Sanyo Electric Co. 56
#30 Nobufusa Kobayashi Toyota 55
#30 Koichiro Muta Toyota 55
#32 Takashi Kodera Jtekt 54
#32 Yasuyuki Takahashi Semiconductor Energy Laboratory 54
#32 Takahiro Uchida Toyota 54
#32 Yoshinori Ishikawa Hitachi 54
#36 Keiji Kataoka Hitachi 52
#36 Takafumi Fujii Nippon Kayaku 52
#38 Hiromasa Tanaka Toyota 50
#38 Masumi Kinugawa Nippondenso Co. 50
#40 Shoji Sato Brother Kogyo 49
#40 Yuto Ikeda Toyota 49
#42 Hironobu Akita Kabushiki Kaisha Toshiba 48
#43 Mikio Matsuda Nippon Soken 47
#43 Takashi Saitou Denso 47
#45 Hiroyuki Kawahara Canon 46
#46 Tatsuya Kojima Furuno Electric Company Limited 45
#46 Mikio Hirano Brother Kogyo 45
#48 Hiroya Umeyama Toyota 44
#49 Hidetoshi Ito Fuji 43
#49 Eturo Yasuda Nippon Soken 43