Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Shiki, JP ranks #3,127 worldwide for total patents filed all time, with 966 patents from 163 inventors. Leading employers of inventors based in Shiki, JP include Makita, Seiko Epson, Hitachi.

Showing 1–50 of 163 inventors

Rank Inventor Primary Company Patents
1 Kosuke Ito Makita 57
2 Jun Amako Seiko Epson 49
3 Kazunori Okano Hitachi 48
#4 Toyohei Nakajima Honda Motor Co. 41
#5 Shigeaki Furukawa Sumitomo Electric Industries 38
#6 Kouji Kimura Nitto Denko 35
#7 Yoshinobu Tateishi Sharp Kabushiki Kaisha 32
#8 Yasuo Hibino Central Glass Company, Limited 26
#9 Mamoru Ito Honda Motor Co. 25
#10 Koji Ohtsuka Sanken Electric Co. 23
#11 Tomoyoshi Mishima Hitachi 21
#12 Motohiro Imura Nippon Shokubai Co. 20
#12 Yorihisa Yamamoto Honda Motor Co. 20
#14 Tomoaki Itabashi Pentax 16
#14 Hiroki Takagi Mitsubishi Electric 16
#14 Kazushige Morita Sharp Kabushiki Kaisha 16
#17 Hidenobu Tanaka Jtekt 14
#18 Tatsuro Kubota Jtekt 13
#18 Takeshi KUNISHIMA Jtekt 13
#18 Takahiro Moro Canon 13
#21 Tamotsu Takahashi Fujitsu Limited 12
#21 Takeshi Takaki Jtekt 12
#21 Haruo Shiina Honda Motor Co. 12
#24 Tomoyuki Koshi Kowa Company 11
#24 Kazuo Kusuda Sharp Kabushiki Kaisha 11
#24 Yasuo Wakatsuki Riken 11
#27 Hideaki Nebu Honda Motor Co. 10
#28 Ritsushi Tanabe Canon 9
#28 Masataka Hikota Tanabe Seiyaku Co. 9
#28 Yuuji Matsui Nec 9
#28 Shoji Maekawa Toyo Kasei Kogyo Company Limited 9
#28 Toshio Kumagai Lederle (Japan) 9
#28 Masami Seki Nikon 9
#34 Yoshio Nogami Honda Motor Co. 8
#34 Seizou Kakimoto Sharp Kabushiki Kaisha 8
#36 Akihiko Hosoda Fujirebio 7
#37 Kiyoshi Ootsuka Nsk 6
#37 Yunosuke Nagase Lederle (Japan) 6
#37 Hirobumi Morita Honda Motor Co. 6
#40 Masaharu Omagari Honda Motor Co. 5
#40 Sadao Wada Toa Nenryo Kogyo 5
#40 Shuji Itou Sumitomo Electric Industries 5
#40 Yoshikazu Fujiwara Sharp Kabushiki Kaisha 5
#40 Kiyotoshi Nakagawa Sharp Kabushiki Kaisha 5
#40 Kouichi Izumi Oki Electric Industry Co. 5
#40 Toshiyuki HAGIYA Toyota 5
#40 Kiyotaka Fujihara Honda Motor Co. 5
#40 Satoki Yoshimura Jtekt 5
#40 Masanobu Sugimoto Toa Nenryo Kogyo 5
#40 Kazuo Hashiguchi Sharp Kabushiki Kaisha 5