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USPTO Patent Rankings Data through Dec 31, 2025
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Nagano, JP All Time

25,603 patents  ·  3,331 inventors

Ranked #100 of 112,640 cities Top 1%

Nagano, JP ranks #100 worldwide for total patents filed all time, with 25,603 patents from 3,331 inventors. Leading employers of inventors based in Nagano, JP include Semiconductor Energy Laboratory, Hitachi, Ricoh Company.

Showing 1–50 of 3,331 inventors

Rank Inventor Primary Company Patents
1 Minoru Takahashi Semiconductor Energy Laboratory 206
2 Hideo Nakamura Hitachi 193
3 Shinji Kobayashi Ricoh Company 189
#4 Kenichi Kubota Kantatsu Co. 181
#5 Ken Ikuma Seiko Epson 173
#6 Yoji Kubota Kantatsu Co. 172
#7 Yujiro Nomura Seiko Epson 160
#8 Kesatoshi Takeuchi Seiko Epson 148
#9 Minoru Usui Seiko Epson 145
#10 Masaru Ohnishi Mimaki Engineering Co. 133
#11 Mitsutoshi Higashi Shinko Electric Industries Co. 132
#11 Hisashi Miyazawa Seiko Epson 132
#13 Toru Matsuyama Seiko Epson 125
#14 Toshiaki Kakutani Seiko Epson 121
#15 Ryuichi Shiohara Seiko Epson 113
#16 Noriyoshi Shimizu Shinko Electric Industries Co. 112
#17 Katsunori Ueno Fuji Electric Co. 110
#18 Katsuyuki Tanaka Sony 108
#19 Shunichi Seki Seiko Epson 106
#20 Masao Nakayama Seiko Epson 97
#21 Shinji Minamisawa Nidec Sankyo 96
#22 Masahiro Murakami IBM 95
#23 Hitoshi Igarashi Seiko Epson 94
#24 Koichi Otsuki Seiko Epson 93
#24 Michio Horiuchi Shinko Electric Industries Co. 93
#26 Akira Mori Murata Manufacturing Co. 88
#27 Hideaki Sakaguchi Shinko Electric Industries Co. 87
#28 Ken Matsubara Minolta 86
#29 Yoshihiro Machida Shinko Electric Industries Co. 85
#30 Hideki Hirata Tdk 84
#31 Tomoaki Kimura Hitachi 83
#32 Noboru Asauchi Seiko Epson 82
#32 Rikuro Obara Minebea Co. 82
#34 Osamu Shinkawa Seiko Epson 79
#35 Tetsuya Matsumoto Fujifilm 76
#36 Fumiyasu Utsunomiya Seiko Instruments 73
#37 Hirokazu Nunokawa Seiko Epson 72
#38 Kazuhiro Nishida Seiko Epson 70
#39 Atsushi Kitamura Minebea Co. 69
#39 Ryuta Nishizawa Seiko Epson 69
#41 Hideaki Takehara Hitachi Cable 68
#41 Tomohiro Sakai Seiko Epson 68
#41 Naoyuki Toyoda Seiko Epson 68
#44 Toshio Kazama Nhk Spring Co. 67
#45 Shigeo Nakajima Sharp Kabushiki Kaisha 66
#45 Koji Hara Smc 66
#45 Akinori Shiraishi Shinko Electric Industries Co. 66
#48 Toshihiro Shima Seiko Epson 65
#48 Tadashi Takeda Nidec Sankyo 65
#48 Daisuke Honda M. Technique Co. 65

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