Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Zama, JP ranks #840 worldwide for total patents filed all time, with 3,992 patents from 615 inventors. Leading employers of inventors based in Zama, JP include Semiconductor Energy Laboratory, Canon, Victor Company Of Japan.

Showing 1–50 of 615 inventors

Rank Inventor Primary Company Patents
1 Hisao Ikeda Semiconductor Energy Laboratory 276
2 Hidekazu Takahashi Canon 208
3 Hikaru Tamura Semiconductor Energy Laboratory 100
#4 Shoji Ueno Victor Company Of Japan 84
#5 Tatsuo Furukawa Canon 64
#6 Tetsuo Saito Canon 60
#7 Toshihide Suzuki Yamaha 58
#8 Eiichi Ono Toyota Central R&D Labs 57
#9 Kenichi Utsumi Fujitsu Limited 51
#10 Yasuo Yamagishi Fujitsu Limited 50
#11 Tomoyuki Koike Nippon Pillar Packing Co. 49
#12 Mitsuru Shinagawa NTT 48
#13 Takashi Hisada IBM 47
#14 Isamu Shimoda Canon 44
#15 Kouichi Hayashi Mazda Motor 41
#15 Yasuhiro Sakai Nippon Shokubai Co. 41
#17 Koichi Hayasaki Nissan Motor Co. 40
#18 Toshiaki Shimizu Panasonic 39
#19 Takehiko Kiyohara Canon 38
#20 Masatoshi OGAWA Fujitsu Limited 36
#21 Fumito Isaka Semiconductor Energy Laboratory 34
#21 Norifumi Kajimoto Canon 34
#23 Chikara Murata Tomoeagawa Paper Co. 28
#23 Tomohiro Yasuda Nidec Tosok 28
#25 Shinji Tsuchida Canon 27
#25 Hiroshi Yageta Nec 27
#25 Naoki Yuda Sumitomo Electric Industries 27
#28 Masaharu Hamasaki Sony 26
#29 Norihiro Iwamoto Toshiba Kikai 25
#30 Masamitsu Yanagihara Nikon 24
#31 Shigeru Ohuchida Ricoh Company 23
#31 Kenji Nagata Canon 23
#31 Fumito Ide Kabushiki Kaisha Toshiba 23
#34 Seiichiro Sakai Canon 21
#34 Toshiya Akamatsu Fujitsu Limited 21
#36 Norio Sasaki Toyota 20
#36 Masaru Iketani Canon 20
#38 Hidemi Egami Canon 19
#39 Shuichi Kinjo Nidec Tosok 18
#39 Toshiharu Yamaguchi Semiconductor Energy Laboratory 18
#39 Yoshimasa Nishihiro Jatco 18
#39 Hajime Muta Canon 18
#43 Toshihiro Horiuchi Sharp Kabushiki Kaisha 17
#43 Hiroyuki Tsuboi Kabushiki Kaisha Toshiba 17
#43 Yoshihide Shinso Nissan Motor Co. 17
#43 Tatsuhiko Yamazaki Canon 17
#43 Takahide Muramoto Fujitsu Limited 17
#43 Kinichiro Nakano Nissan Motor Co. 17
#43 Shun KATO Nidec Tosok 17
#43 Fumihiko Koshimizu Mitutoyo 17