Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Tochigi, JP ranks #2,371 worldwide for total patents filed all time, with 1,321 patents from 29 inventors. Leading employers of inventors based in Tochigi, JP include Daikin Industries, Otsuka Kagaku Kabushiki Kaisya, Canon.

Showing 1–29 of 29 inventors

Rank Inventor Primary Company Patents
1 Kazuhiro Takahashi Daikin Industries 273
2 Hideo Tanaka Otsuka Kagaku Kabushiki Kaisya 202
3 Kunihiko Sasaki Canon 85
#4 Takuya Arai Fujitsu Limited 84
#5 Takashi Noda Mitutoyo 61
#6 Akihiro Matsumoto Canon 60
#6 Takayuki Yamaguchi Ricoh Company 60
#8 Wataru Yamaguchi Brother Kogyo 56
#9 Yuzo Yamamoto Daicel 55
#9 Tomoyuki Aoki Semiconductor Energy Laboratory 55
#11 Tomokazu Kato Minolta Co. 50
#12 Kouichi Sato Pentax 45
#13 Toshihiko Fukuda Honda Motor Co. 37
#14 Yuichiro Kato Canon 25
#14 Hironori Watanabe Mitsubishi Electric 25
#16 Toru Matsuzaki Kitagawa Industries Co. 18
#17 Kazuaki Mima Ts Tech Co. 16
#18 Hajime Ohta Jsp 15
#19 Hidenori Yokoyama Toyota 14
#19 Masashi Nakano Nec 14
#19 Isao Murase Showa Denko K.K. 14
#22 Noriko Ito Kao 13
#23 Shinji Fukui Nippon Soken 10
#24 Yasuji Tanaka Nisshin Steel Co. 8
#25 Yoshiji Yamada Nagoya Industrial Science Research Institute 7
#26 Katsuya Fujimoto Komatsu Shisakusho 6
#27 Mitsuo Hino Kobe Steel 5
#28 Kazunobu Kamisawa Omron Automotive Electronics Co. 4
#28 Keiichi Kitayama Mitsubishi Electric 4