Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Kisarazu, JP ranks #4,941 worldwide for total patents filed all time, with 542 patents from 122 inventors. Leading employers of inventors based in Kisarazu, JP include Kazusa Dna Research Institute, Honda Motor Co., Kabushiki Kaisha Toshiba.

Showing 1–50 of 122 inventors

Rank Inventor Primary Company Patents
1 Osamu Ohara Kazusa Dna Research Institute 44
2 Ken Nonaka Honda Motor Co. 32
3 Hiroaki Kubota Kabushiki Kaisha Toshiba 29
#4 Tomoaki Matsugi Mitsui Chemicals 24
#5 Daisuke Shibata Honda Motor Co. 22
#6 Takashi Morohoshi Nippon Steel 19
#7 Koichi Yano Canon 15
#7 Akio Yamane Wakunaga Seiyaku Kabushiki Kaisha 15
#9 Takahiro Nagase Kazusa Dna Research Institute 14
#9 Ryousuke Kaneshige Mitsui Chemicals 14
#11 Yasushi Shigemori Aisin Seiki Kabushiki Kaisha 12
#11 Satoko Fujiyama Mitsui Chemicals 12
#13 Yoshimi Iwasaki Kuroda Precision Industries 11
#14 Masaru Sato Honda Motor Co. 10
#15 Yasuji Shichijo Nippon Steel Chemical Co. 9
#15 Hirotoshi Ishii Idemitsu Kosan Co. 9
#15 Shigeru Amano Nippon Steel 9
#15 Tomohiko Kato Honda Motor Co. 9
#19 Tetsuya Saitou Tokyo Electron Limited 8
#19 Shuichi Akashi Toppan Printing Co. 8
#19 Kikuo Nagatoshi Idemitsu Kosan Co. 8
#22 Noriyuki Satou Sumitomo Chemical 7
#22 Tetsutaro Sato 7
#24 Gorou Kitsukawa Renesas Electronics 6
#24 Hiroshi Takechi Nippon Steel 6
#26 Takeji Tanaka Mitsubishi Mining 5
#26 Toshio Hirokawa Kabushiki Kaisha Toshiba 5
#26 Tomomi Asakura Tdk 5
#26 Makoto Shimose Nippon Steel Chemical Co. 5
#30 Yoshiki Suto NS Sumikin Chemical 4
#30 Ryutaku Kaneyama Unknown 4
#30 Tomonori Takashi Honda Motor Co. 4
#30 Kazuya Jinda Ube Industries 4
#34 Satoshi Tabata Osaka University 3
#34 Satoshi Koyanagi Furukawa Electric Co. 3
#34 Matsuo Usuda Nippon Steel 3
#34 Yuri Kawai Astellas Pharma 3
#34 Tamotsu Okamoto Institute Of National Colleges Of Technology 3
#34 Tomohiro Nakanishi Nippon Graphite Fiber 3
#34 Seiichi Shido Idemitsu Kosan Co. 3
#34 Kohji Kohno Nippon Steel & Sumitomo Metal 3
#34 Kenji Takuma Nippon Steel 3
#34 Koichi Toyosaki Furukawa Electric Co. 3
#34 Yuichiro Nakaoki Toray Industries 3
#34 Mitsuru Ohtsubo Dainippon Ink And Chemicals 3
#34 Toshihide Itahara NS Sumikin Chemical 3
#34 Takeshi Ara Honda Motor Co. 3
#34 Kiyotoshi Iwasaki Nippon Steel 3
#34 Shigeo Yanase 3
#50 Yoko Iijima University of Michigan 2