Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Toyama, JP ranks #260 worldwide for total patents filed in 2021, with 527 patents from 273 inventors. Leading employers of inventors based in Toyama, JP include Denso Ten Limited, Kokusai Electric, Nissan Chemical Industries.

Showing 1–50 of 273 inventors

Rank Inventor Primary Company Patents
1 Tetsuo Yamamoto Denso Ten Limited 12
2 Naofumi Ohashi Kokusai Electric 11
3 Hidenari Yoshida Kokusai Electric 8
3 Rikimaru Sakamoto Nissan Chemical Industries 8
3 Takafumi Sasaki Kokusai Electric 8
#6 Tomohiro Ueno Fujitsu Limited 7
#7 Tadashi Takasaki Kokusai Electric 6
#7 Shun MATSUI Kokusai Electric 6
#7 Shuhei Saido Kokusai Electric 6
#7 Tomoshi Taniyama Kokusai Electric 6
#7 Masanori NAKAYAMA Kokusai Electric 6
#12 Takayuki Nakada Panasonic 5
#12 Toyoaki Mitsue Sugino Machine Limited 5
#12 Makoto Nakajima Nissan Chemical Industries 5
#12 Yuki Endo Advantest 5
#12 Yusaku OKAJIMA Kokusai Electric 5
#12 Yoshitomo HASHIMOTO Kokusai Electric 5
#18 Daigi KAMIMURA Kokusai Electric 4
#18 Daisuke Hara Shofu 4
#18 Kimihiko NAKATANI Kokusai Electric 4
#18 Tatsuru Matsuoka Kokusai Electric 4
#18 Kenji Kameda Hitachi Kokusai Electric 4
#18 Tsuyoshi Takeda Hitachi Kokusai Electric 4
#18 Atsushi Moriya Hitachi Kokusai Electric 4
#18 Yoshiro Hirose Hitachi Kokusai Electric 4
#18 Kenji Takase Nissan Chemical Industries 4
#18 Yoshinori Takami Panasonic 4
#18 Yuichi Wada Applied Materials 4
#18 Hiroto IGAWA Kokusai Electric 4
#18 Mineto Terada Ykk 4
#18 Teruo Yoshino Kokusai Electric 4
#18 Kazuya Mizumoto Ykk 4
#33 Hiroaki Hiramatsu Kokusai Electric 3
#33 Takafumi Endo Nissan Chemical Industries 3
#33 Kosuke Takagi Hitachi Kokusai Electric 3
#33 Ryo Mikuma Ykk 3
#33 Shinya Ebata Kokusai Electric 3
#33 Yuto HASHIMOTO 3
#33 Takanori Ozawa Ykk 3
#33 Yuichiro TAKESHIMA Kokusai Electric 3
#33 Yasushi Sakaida Nissan Chemical Industries 3
#33 Go Takani Ykk 3
#33 Atsushi Sano Tdk 3
#33 Toru Kakuda Kokusai Electric 3
#33 Masato OHKAWA Panasonic 3
#33 Hiroyuki Iwakura Hitachi Kokusai Electric 3
#33 Takuya JODA Kokusai Electric 3
#33 Yohei Shimizu Nidec Sankyo 3
#33 Koichiro Harada Mazda Motor 3
#33 Roh Yamamoto Semiconductor Energy Laboratory 3