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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Ichikawa, JP ranks #1,551 worldwide for total patents filed in 2016, with 80 patents from 33 inventors. Leading employers of inventors based in Ichikawa, JP include Kabushiki Kaisha Toshiba, Canon, Sumitomo Metal Mining Co..

Showing 1–33 of 33 inventors

Rank Inventor Primary Company Patents
1 Shinya Nunoue Kabushiki Kaisha Toshiba 31
2 Yousuke Hata Canon 9
3 Tokuyuki Nakayama Sumitomo Metal Mining Co. 4
#4 Hidehiro Nagasawa Kao 2
#4 Yuji Takatsuka Mitsubishi Electric 2
#4 Tomochika Murakami Canon 2
#4 Tetsuro Yasukawa Canon 2
#4 Tomoaki Goto Sumitomo Chemical 2
#4 Takeshi Osaki Toyo Gosei Co. 2
#10 Kyoichi Shimizu Victor Company Of Japan 1
#10 Kazufumi Suzukawa Hitachi Ulsi Systems Co. 1
#10 Kyouko Miyauchi Sumitomo Metal Mining Co. 1
#10 Shinichiro Tosa Rakuten Group 1
#10 Tetsuya Hashimoto Ricoh Company 1
#10 Kensuke Kuraki Fujitsu Limited 1
#10 Katsumi Agata Sumitomo Chemical 1
#10 Tomonori Ikeno Japan Petroleum Exploration Co. 1
#10 Minako Matoba Lion Group 1
#10 Yuka Takita Sumitomo Metal Mining Co. 1
#10 Yu Okada Toyota 1
#10 Hidetoshi Yamabe Sumitomo Metal Mining Co. 1
#10 Tetsumei Tsuruoka Fujitsu Limited 1
#10 Isao Ando Sumitomo Metal Mining Co. 1
#10 Kenichiro Uotani Canon 1
#10 Terutoshi Taguchi Fujitsu Limited 1
#10 Haruo Ishizuka Canon 1
#10 Takehito Tamura Texas Instruments 1
#10 Hirotaka Minami Sumitomo Metal Mining Co. 1
#10 Eiji Nagao Fujitsu Limited 1
#10 Shoji Takanashi Sumitomo Metal Mining Co. 1
#10 Ai Sakuma Canon 1
#10 Kenichi Shirai Canon 1
#10 Masanori Takagi Sumitomo Metal Mining Co. 1