Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Tajimi, JP ranks #4,243 worldwide for total patents filed all time, with 662 patents from 115 inventors. Leading employers of inventors based in Tajimi, JP include Brother Kogyo, Fuji Oil Holdings, Ngk Insulators.

Showing 1–50 of 115 inventors

Rank Inventor Primary Company Patents
1 Norihiko Asai Brother Kogyo 137
2 Hitoshi Furuta Fuji Oil Holdings 39
2 Takaaki Koizumi Ngk Insulators 39
#4 Hitoshi Fujino Brother Kogyo 37
#5 Tomoyuki Maruyama Toyota 26
#6 Hidenori Itamoto Jtekt 23
#6 Hideyuki Iwakiri Toyota 23
#8 Fumio Taniguchi Panasonic 17
#9 Satoru Ariyoshi Sharp Kabushiki Kaisha 16
#9 Yoshimitsu Taniguchi Brother Kogyo 16
#11 Nobuyuki Shinohara Toyota 14
#12 Eiji Kozawa Furukawa Electric Co. 12
#13 Hiroshi Imagawa Kabushiki Kaisha Toshiba 11
#14 Toshihiro Kumagai Olympus 10
#15 Shinji Ikenoya Ckd 9
#15 Hisao Yokoya Mitsubishi Electric 9
#17 Kunihiro Ohara Fujitsu Semiconductor Limited 8
#17 Takashi OGISO Aisin 8
#19 Shori Kato Mitsubishi Electric 7
#20 Ken Itadu Ngk Insulators 6
#20 Kazuomi Yamanishi Toyota 6
#20 Masayoshi Fuji Nagoya Institute Of Technology 6
#20 Yoshitaka Doi Nichia 6
#20 Sumio Oinuma Tokai Rubber Industries 6
#25 Toschio Murai American Commercial 5
#25 Hirokatsu Hattanda Tyk 5
#25 Naobumi Nagasawa Sanyo Electric Co. 5
#28 Eiji Yamagata Hitachi Construction Machinery Co. 4
#28 Hideji NAITO Toyota 4
#28 Keizo Aramaki Tokyo Yogyo Kabushiki Kaisha 4
#28 Masaharu Kajita Ngk Insulators 4
#28 Aya Tamura Brother Kogyo 4
#28 Nobuo Miyagawa Tokyo Yogyo Kabushiki Kaisha 4
#28 Toshiya Matsuyama Brother Kogyo 4
#28 Reona Takagishi Toyota 4
#36 Norio Nishiwaki Toyota 3
#36 Shoma Tsumagari Ngk Spark Plug Co. 3
#36 Ryozo Shibano Murata Kikai 3
#36 Makoto Ishizawa Tokaikogyo Mishin 3
#36 Michitaka Yamada Ngk Spark Plug Co. 3
#36 Fumio Nakanishi Brother Kogyo 3
#36 Yosuke Shinozaki Ngk Spark Plug Co. 3
#36 Yukio Ichihara Mitsubishi Electric 3
#36 Tetsurou Kondou Tokaikogyo Mishin 3
#36 Norihito FUJIWARA Jasco 3
#36 Shuichi Nakayama Mitsubishi Electric 3
#36 Katsuharu Yoshikawa Tism Co. 3
#36 Chiaki Ogawa Denso 3
#49 Yoshikazu Munemoto Kabushiki Kaisha Toshiba 2
#49 Michitoshi Nakata Ngk Spark Plug Co. 2