Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Chofu, JP ranks #1,668 worldwide for total patents filed in 2018, with 77 patents from 43 inventors. Leading employers of inventors based in Chofu, JP include Kabushiki Kaisha Toshiba, Olympus, Rakuten Group.

Showing 1–43 of 43 inventors

Rank Inventor Primary Company Patents
1 Yushi Kato Kabushiki Kaisha Toshiba 5
1 Koichi Tashiro Olympus 5
1 Makoto Okabe Rakuten Group 5
#4 Ayako Tozuka Canon 4
#5 Tetsuro Sugiura Ebara 3
#5 Hideshi Yamada Sony 3
#5 Takashi Nishimura Kabushiki Kaisha Toshiba 3
#5 Masashi Ishikawa Canon 3
#5 Atsushi Maeda Sanyo Electric Co. 3
#5 Kazuhiko Ueda Sony 3
#11 Kouichi Takeuchi Toyota 2
#11 Kentarou Yuasa Fujitsu Limited 2
#11 Junichi Akatsuka Japan Aerospace Exploration Agency 2
#11 Yusuke Yabe Olympus 2
#11 Yuki IDE Toyota 2
#11 Yusuke Kosaka Toyota 2
#11 Rikio Onai Rakuten Group 2
#18 Yukina Abe Kewpie 1
#18 Hiromi Miura Ngk Insulators 1
#18 Mihoko Nakamura Canon 1
#18 Mitsuyoshi Akiyama Kabushiki Kaisha Toshiba 1
#18 Kazuya HOSONO Olympus 1
#18 Teruaki Ono Daiken Trade & Industry Co. 1
#18 Hidetoshi FUJITA Unknown 1
#18 Hiroyuki Kasai Nec Communication Systems 1
#18 Shunichi Fujikawa Kewpie 1
#18 Tatsuya Kurihara Nhk Spring Co. 1
#18 Yutaro Takahashi Honda Motor Co. 1
#18 Yoshitsugu Sone Japan Aerospace Exploration Agency 1
#18 Kazuyoshi Haraguchi Casio Computer Co. 1
#18 Hitoshi Wakabayashi Nec 1
#18 Kazuaki Matsuura Japan Aerospace Exploration Agency 1
#18 Kazunori Asaoka Kewpie 1
#18 Kazuya Yamamoto Mitsubishi Electric 1
#18 Shinichi Matsubara Hitachi High-Technologies 1
#18 Hisao Yoshioka Kabushiki Kaisha Toshiba 1
#18 Masato Fukumori Fujitsu Limited 1
#18 Asuka Shima Japan Aerospace Exploration Agency 1
#18 Yuki Ebihara Micron 1
#18 Minoru Someya Micron 1
#18 Kazuki Hyoudou Fujitsu Limited 1
#18 Takumi HORIE Toyota 1
#18 Aurélie Kuroda Asm Ip Holding B.V. 1