Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Kazo, JP ranks #3,657 worldwide for total patents filed all time, with 804 patents from 138 inventors. Leading employers of inventors based in Kazo, JP include Fuji Electric Fa Components & Systems Co., Wacom Co., Shin-Etsu Polymer Co..

Showing 1–50 of 138 inventors

Rank Inventor Primary Company Patents
1 Kouetsu Takaya Fuji Electric Fa Components & Systems Co. 85
2 Kenichi Ninomiya Wacom Co. 63
3 Kazuyoshi Yoshida Shin-Etsu Polymer Co. 55
#4 Yukio Horikoshi Nippon Piston Ring Co. 38
#5 Yuji Shiba Fuji Electric Fa Components & Systems Co. 34
#6 Shigeyuki Sano Wacom Co. 25
#7 Shuichi Chikamatsu Hitachi High-Technologies 21
#8 Noboru Taga Kabushiki Kaisha Toshiba 16
#8 Kosuke Yasuda Mitsubishi Tanabe Pharma 16
#8 Teruo Umehara Hitachi 16
#11 Shigeki Kaneko Sumitomo Electric Industries 15
#12 Susumu Sugishita Nippon Piston Ring Co. 14
#13 Yoshiki Kida Nikon 12
#14 Satoshi Goishihara Dai Nippon Printing Co. 11
#14 Ryuichi Iwasaki Noritsu Koki Co. 11
#14 Yasushi Hanamoto Sanyo Electric Co. 11
#14 Toshiyuki Takai Japan Science And Technology Agency 11
#18 Yuichi Shiraishi Fujitsu Limited 10
#18 Hiroyuki Miyachi Kyorin Pharmaceutical Co. 10
#20 Yukio Shoji Komatsu 9
#20 Yasuo Takano Kyorin Pharmaceutical Co. 9
#20 Shunya Saito Wacom Co. 9
#20 Noriyoshi Machida Fuji Electric Fa Components & Systems Co. 9
#24 Kazuo Hotaka Sanyo Electric Co. 8
#25 Wataru Doi Advantest 7
#25 Yasutaka Tsuruki Advantest 7
#25 Takashi Miyachi Nikon 7
#25 Osao Ogiwara Akebono Brake Industry Co. 7
#25 Toshimitsu Umezawa Kabushiki Kaisha Toshiba 7
#25 JuiMin Liu Wacom Co. 7
#25 Takahiro Taguchi Fuji Electric Fa Components & Systems Co. 7
#25 Masakatsu Senda NTT 7
#33 Seiichi Hayakawa Hitachi Power Semiconductor Device 6
#33 Igor Karsuntsev Wacom Co. 6
#33 Akira Goishi Advantest 6
#33 Takashi Kagechika Fuji Photo Optical Co. 6
#33 Shinji Aoyagi Akebono Brake Industry Co. 6
#38 Keiichi Kitahara Kimoto Co. 5
#38 Hiroshi Tokumura Akebono Brake Industry Co. 5
#38 Kenzou Yoshihara Nippon Conlux Co. 5
#38 Hiroshi Akamine Ferro 5
#38 Mitsuharu Hayakawa Hitachi 5
#38 Masayuki Kurata Akebono Brake Industry Co. 5
#44 Hiroshi Hirashita Akebono Brake Industry Co. 4
#44 Taku Ogawa Fuji Electric Co. 4
#44 Isamu Kajino 4
#44 Youji Takei Sanyo Electric Co. 4
#44 Isao Souma Agency Of Industrial Science & Technology, Ministry Of International Trade & Industry 4
#44 Masaaki Hirao Denso 4
#44 Hideaki Tokoro Topcon 4