Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Kasama, JP ranks #9,243 worldwide for total patents filed all time, with 224 patents from 53 inventors. Leading employers of inventors based in Kasama, JP include Fujifilm, Hitachi, Altech Co..

Showing 1–50 of 53 inventors

Rank Inventor Primary Company Patents
1 Tomonori Mimura Fujifilm 88
2 Riichi Uchida Hitachi 10
3 Kazuhira Ojima Hitachi 9
#4 Toshiharu Tamura Altech Co. 7
#4 Shinsuke Murano Hitachi Cable 7
#6 Tomoyo Okubo Fujifilm Business Innovation 5
#6 Yukihiro Fujieda Kuraray Co. 5
#6 Toshihide Takano Hitachi 5
#9 Katsuo Oki 4
#9 Shigeo Otsuki Hitachi High-Technologies 4
#9 Kohei Yuri Junkosha 4
#9 Takefumi Yokokura Hitachi High-Technologies 4
#9 Shigeo Ootsuki Hitachi 4
#9 Suguru Tanabe Junkosha 4
#9 Akira Kotaki Nissan Motor Co. 4
#9 Jinya Ikeda Hitachi-Lg Data Storage 4
#9 Nozomi Ohshika Junkosha 4
#9 Syunsuke Munakata Junkosha 4
#19 Hideyuki Shibanuma Hitachi Vehicle Energy 3
#19 Takaki Fukuchi Hitachi Plant Technologies 3
#19 Seizi Hattori Fujitsu Limited 3
#22 Hiroaki Hiratsuka NTT 2
#22 Kouji Kimijima Hitachi Construction Machinery Co. 2
#22 Koichi Kawase Eti Group 2
#22 Hideki Yatabe Hitachi High-Technologies 2
#22 Keiji Yoda Junkosha 2
#22 Masato Yotsuya Junkosha 2
#22 Teteuo Nakazawa Hitachi 2
#29 Akiomi Kouno Hitachi 1
#29 Koichiro Yoshioka Junkosha 1
#29 Mitsugu Owada Canon 1
#29 Takayuki Ariyasu Kyodo Yushi Co. 1
#29 Akiomi Kono Hitachi 1
#29 Fumiyuki Furuhashi Junkosha 1
#29 Shigeo Hiramatsu Junkosha 1
#29 Yuushi Okeda Junkosha 1
#29 Yasushi Ichimura Texas Instruments 1
#29 Hiroshi Yashiro Sekisui Medical Co. 1
#29 Imamura Shogo Junkosha 1
#29 Akiomi Kono Hitachi Construction Machinery Co. 1
#29 Hiroyasu Ikegami Nakashima Propeller Co. 1
#29 Shinsuki Murano Hitachi Cable 1
#29 Shunsuke Munakata Junkosha 1
#29 Tsuguo Fukawa Victor Company Of Japan 1
#29 Hisaya Gotou Mitsui Norin Co. 1
#29 Tsutomu Mizukoshi University Of Tsukuba 1
#29 Seiichi Wakairo Hitachi 1
#29 Osamu Onuki Doryokuro Kakunenryo Kaihatsu Jigyodan 1
#29 Toshiji Mizukoshi University Of Tsukuba 1
#29 Masaru Sonobe Hitachi 1