Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Sano, JP ranks #5,256 worldwide for total patents filed all time, with 499 patents from 108 inventors. Leading employers of inventors based in Sano, JP include Tochigi Fuji Sangyo, Seiko Koki Kabushiki Kaisha, Honda Motor Co..

Showing 1–50 of 108 inventors

Rank Inventor Primary Company Patents
1 Masao Teraoka Tochigi Fuji Sangyo 90
2 Masuo Ogihara Seiko Koki Kabushiki Kaisha 34
3 Yuki Nakada Honda Motor Co. 29
3 Kiyoshi Kitai Seiko Koki Kabushiki Kaisha 29
3 Hiroki Matsushita Kabushiki Kaisha Toshiba 29
#6 Manabu Ogawa Fujifilm 23
#7 Masayuki Shinoda Sumitomo Electric Industries 15
#8 Sakuo Kurihara Tochigi Fuji Sangyo 13
#9 Teruo Urano Murakashi Lime Industry Co. 11
#10 Ken Machida Mitsuba 10
#11 Mitsutoshi Sugano Pioneer 9
#12 Masayuki Amagai Keio University 6
#12 Koji Homma Tokyo Electron Limited 6
#12 Kenji Ogino Nissan Motor Co. 6
#12 Rieko Kobayashi National University Corporation Gunma University 6
#16 Subei Shun Nidec Copal Electronics 5
#16 Takatoshi Inoguchi Nidec Copal Electronics 5
#16 Ichiro YOKOKURA Fujitsu Limited 5
#16 Masazo Okajima Sanyo Electric Co. 5
#20 Setsuya Uchino Calsonic Kansei 4
#20 Tomio Sugimoto Asahi Glass Co. 4
#20 Shinobu Nakagawa Nippon Carbide Kogyo 4
#20 Shinichiro Ando Kawasaki 4
#20 Keiya Hoshino Nidec Copal Electronics 4
#20 Yoichi Wakabayashi Hitachi 4
#20 Noriyuki Okawa Calsonic Kansei 4
#20 Mototaka KANAYA Fujifilm 4
#20 Koji KARASAWA Shionogi & Co. 4
#29 Yoko Yasutomi Nidec Copal Electronics 3
#29 Yasuhiro TOBINAI Nidec Copal Electronics 3
#29 Masatoshi Obayashi Nidec Copal Electronics 3
#29 Hirofumi Hagikura Nihon Radiator Co. 3
#29 Wataru Echigoya Hitachi Appliances 3
#29 Kiyohito Hiromitsu Nippon Carbide Kogyo 3
#29 Yutaka Hayama Fujitsu Limited 3
#29 Takumi Ijichi Calsonic Kansei 3
#29 Yoshinori Iizuka Unknown 3
#29 Norihiko Fukatsu Mitsui Chemicals 3
#29 Hideki Terauchi Nec 3
#29 Hiroyuki Ureshino Nissan Motor Co. 3
#41 Toshifumi Kakinuma Tokyo Keiki 2
#41 Yoshiaki Okabayashi Polymatech Co. 2
#41 Eiji Itoi Asahi Glass Co. 2
#41 Junichirou Terazawa Calsonic Kansei 2
#41 Yukitoshi Kobori Calsonic Kansei 2
#41 Toyohiko Akata Nidec Copal Electronics 2
#41 Hironari Furuta Ngk Spark Plug Co. 2
#41 Shigeaki SHINGYOCHI Nidec Copal Electronics 2
#41 Takeshi Wakatabe Hitachi 2
#41 Yasaburou Ootaka Sekinos Co. 2