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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Handa, JP ranks #5,843 worldwide for total patents filed all time, with 433 patents from 24 inventors. Leading employers of inventors based in Handa, JP include IBM, Aisin Aw Co., Aisin Seiki Kabushiki Kaisha.

Showing 1–24 of 24 inventors

Rank Inventor Primary Company Patents
1 Eiji Nakamura IBM 109
2 Shuzo Moroto Aisin Aw Co. 60
3 Masanobu Ishikawa Aisin Seiki Kabushiki Kaisha 33
#4 Shigeru Nakano Dai Nippon Printing Co. 28
#5 Shigeaki Sumiya Ngk Insulators 27
#6 Keiji Yasuda Aisin Seiki Kabushiki Kaisha 25
#7 Yoshihiko Nakayama Hitachi High-Technologies 24
#8 Yukio Miyata Jfe Steel 18
#9 Nobuki Tanaka Kawasaki Steel 15
#10 Takafumi Ikeda Pfizer 12
#11 Tsutomu Ide Tdk 11
#12 Hajime Okumura Nakano Vinegar Co. 10
#12 Jueru Shimizu Toyota 10
#14 Kazuya Serizawa Nof 7
#14 Atsuyoshi Kimura Daido Tokushuko 7
#14 Kozo Imura Jgc 7
#17 Toshio Ohnishi Kawasaki Steel 6
#17 Itaru Shirahata Tokai Kogyo Co. 6
#19 Masaki Sudoh Teijin Limited 4
#19 Hidemi Nakagawa Ngk Insulators 4
#21 Ryoji Morimoto Hoshizaki Denki 3
#21 Katsura Sugiura Tokai Kogyo Co. 3
#23 Susumu Itadani Kawasaki Steel 2
#23 Yoshiyuki Sensui Mino Yogyo Co. 2