Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Sapporo, JP ranks #904 worldwide for total patents filed in 2017, with 150 patents from 97 inventors. Leading employers of inventors based in Sapporo, JP include Central Glass Company, Limited, Nec, Sony.

Showing 1–50 of 97 inventors

Rank Inventor Primary Company Patents
1 Masanori Saito Central Glass Company, Limited 8
2 Jun Furukawa Nec 5
2 Yuji Shinohara Sony 5
2 Kunimasa Saitoh National University Corporation Hokkaido University 5
#5 Shinji Maruyama Fujitsu Optical Components Limited 4
#5 Kikuo Umegaki Hitachi 4
#5 Noriaki Mizuguchi Fujitsu Limited 4
#5 Yuichi Miura Ushio Denki Kabushiki Kaisha 4
#9 Hideyoshi Harashima National University Corporation Hokkaido University 3
#9 Taeko Matsuura Hitachi 3
#9 Shigeru Yamaguchi Nippon Shokubai Co. 3
#12 Yoshiaki Nishijima Denso 2
#12 Hidetaka Akita National University Corporation Hokkaido University 2
#12 Shintaro Takeuchi Fujitsu Optical Components Limited 2
#12 Osamu Honmou Sapproro Medical University 2
#12 Hiroki Shirato Hitachi 2
#12 Tatsuya Takeguchi National University Corporation Hokkaido University 2
#12 Seishin Takao Hitachi 2
#12 Masahide Harada Hitachi 2
#12 Hiroto Hatakeyama National University Corporation Hokkaido University 2
#12 Makoto Nishioka Honda Motor Co. 2
#12 Shuichi Yasuda Screen Holdings Co. 2
#12 Kazuhiro Sugihara Fujita Academy 2
#12 Masaharu Doi Fujitsu Limited 2
#12 Takuya Yoshikawa Furukawa Electric Co. 2
#12 Wataru Ueda Asics 2
#12 Kazuhiro Shibuya Seiko Epson 2
#28 Hiroshi Yahaba Dmg Mori Seiki Co. 1
#28 Manabu Tokeshi Kanagawa Academy Of Science And Technology 1
#28 Takahiro Otsu Seiko Epson 1
#28 Yoshinori Nakata Fanuc 1
#28 Naoyuki Funamizu Unicharm 1
#28 Katsuhiro Tomioka National University Corporation Hokkaido University 1
#28 Yuki Otani Yakult Honsha 1
#28 Masanori Koshiba National University Corporation Hokkaido University 1
#28 Tohru Ueda Sharp Kabushiki Kaisha 1
#28 Takehiro Shimaoka Japan Atomic Energy Agency 1
#28 Youichi Tsubota Japan Atomic Energy Agency 1
#28 Naohira Kanayama Burnham Institute For Medical Research 1
#28 Yoshikazu Miyanaga Raytron Co. 1
#28 Yuji Kuge Hitachi 1
#28 Atsushi Serizawa Megmilk Snow Brand Co. 1
#28 Miki YAMAGUCHI Daiichi Sankyo Company, Limited 1
#28 Tomoyuki Itou Fujitsu Limited 1
#28 Mitsuhiko Manpo Fujitsu Limited 1
#28 Toshiaki Onozawa Alpine Electronics 1
#28 Kazuhiko Oka National University Corporation Hokkaido University 1
#28 Masayuki Kurisu Fujitsu Optical Components Limited 1
#28 Shoji Hara Fujitsu Limited 1
#28 Yuji Tasaka National University Corporation Hokkaido University 1