Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Chofu, JP ranks #1,454 worldwide for total patents filed in 2017, with 92 patents from 47 inventors. Leading employers of inventors based in Chofu, JP include Sanyo Electric Co., Rakuten Group, Fujitsu Limited.

Showing 1–47 of 47 inventors

Rank Inventor Primary Company Patents
1 Atsushi Maeda Sanyo Electric Co. 7
2 Makoto Okabe Rakuten Group 6
2 Kazuki Hyoudou Fujitsu Limited 6
#4 Kazuya Yamamoto Mitsubishi Electric 5
#4 Rikio Onai Rakuten Group 5
#6 Takeshi Seto Seiko Epson 4
#7 Yushi Kato Kabushiki Kaisha Toshiba 3
#7 Kazuya HOSONO Olympus 3
#7 Osamu Kaneko Toyota 3
#7 Hideshi Yamada Sony 3
#7 Takashi Nishimura Kabushiki Kaisha Toshiba 3
#12 Tatsuya Kurihara Nhk Spring Co. 2
#12 Hiromi Miura Ngk Insulators 2
#12 Masaki Okue Toyota 2
#12 Juntaro Minezaki Fujitsu Limited 2
#12 Shohei Sakiyama Rakuten Group 2
#12 Shinichi Matsubara Hitachi High-Technologies 2
#12 Minoru Someya Micron 2
#12 Yusuke Yabe Olympus 2
#20 Hiroshi Ogihara Toyota 1
#20 Yuki IDE Toyota 1
#20 Akinori Marunaka Kowa Company 1
#20 Takao Shudo Konica Minolta 1
#20 Kosei Tamiya Olympus 1
#20 Yukihito Tashiro Ulvac 1
#20 Masakazu Nemoto Ricoh Company 1
#20 Tetsuro Sugiura Ebara 1
#20 Kentarou Yuasa Fujitsu Limited 1
#20 Tomohito Otawa Fujitsu Limited 1
#20 Koichi Tashiro Olympus 1
#20 Tomotaka Terajima Fuji Heavy Industries 1
#20 Hidetoshi FUJITA Unknown 1
#20 Shigeo Matsuzawa Kabushiki Kaisha Toshiba 1
#20 Kunio Hori Olympus 1
#20 Yoshitsugu Sone Japan Aerospace Exploration Agency 1
#20 Koji Usami Danmarks Tekniske Universitet 1
#20 Kouichi Takeuchi Toyota 1
#20 Kazuhiko Ueda Sony 1
#20 Masato Fukumori Fujitsu Limited 1
#20 Hitoshi Wakabayashi Nec 1
#20 Kazuya Kayama Canon 1
#20 Masashi Ishikawa Canon 1
#20 Toshio Miyoshi Neomax Co. 1
#20 Mihoko Nakamura Canon 1
#20 Haruko Sato Toyota 1
#20 Yasuo Taima Konica Minolta 1
#20 Yusuke Kosaka Toyota 1