Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Fukushima, JP ranks #617 worldwide for total patents filed all time, with 5,451 patents from 1,100 inventors. Leading employers of inventors based in Fukushima, JP include Hitachi, Toshiba Tec Kabushiki Kaisha, New Japan Chemical Co..

Showing 1–50 of 1,100 inventors

Rank Inventor Primary Company Patents
1 Yoshio Suzuki Hitachi 222
2 Hiroyuki Taguchi Toshiba Tec Kabushiki Kaisha 174
3 Toshiaki Kobayashi New Japan Chemical Co. 101
3 Takeshi Tomizawa Kabushiki Kaisha Toshiba 101
#5 Kenichi Kawase Sony 97
#6 Nobuo Watanabe Seiko Epson 83
#7 Shinsuke Shikama Mitsubishi Electric 77
#8 Hiroshi Takabayashi Canon 58
#9 Katsutoshi Suzuki Alps Electric Co. 49
#10 Takuji Nomura Asahi Glass Co. 48
#11 Kei Tanabe Alpine Electronics 47
#12 Tsutomu Aoyama Tdk 46
#13 Masayuki Toda Kabushiki Kaisha Watanabe Shoko 42
#14 Kazuhito Hatta Sony 41
#15 Dou Yuanzhu Alps Electric Co. 39
#16 Akira Otsuka Fujitsu Limited 38
#17 Masayuki Nagamine Sony 36
#17 Isamu Konishiike Sony 36
#19 Takehiro Nakagawa Nok 35
#19 Naoyuki Sugeno Murata Manufacturing Co. 35
#19 Tadahiro Kato Shin-Etsu Handotai Co. 35
#22 Yuichiro Ito Nintendo Co. 33
#23 Tsutomu Okazaki Renesas Electronics 32
#24 Masaaki Yagi Toyota 31
#25 Kazuhiko SHIONO Agc 30
#25 Hiroki Hotaka Agc 30
#27 Kiichiro Goto Ricoh Company 29
#28 Masayuki Iwama Sony 28
#29 Iwakichi Ogawa Takara Co. 27
#30 Hiroshi Shigetaka Alps Electric Co. 26
#31 Yutaka Sakamoto Delta Tooling Co. 25
#31 Yoshikatsu Yamamoto Sony 25
#33 Kazunari Kato Alpine Electronics 24
#34 Noriyoshi Sato Sumitomo Electric Industries 23
#34 Mitsuhiro Matsuo Sumitomo Electric Industries 23
#34 Mashio Shibuya Sony 23
#34 Yoh Takano Sanyo Electric Co. 23
#38 Atsumichi Kawashima Sony 21
#38 Tomoo Takada Sony 21
#38 Takashi Fujinaga Sony 21
#38 Koji Miyasaka Asahi Glass Co. 21
#38 Hideki Shoji Toyo System Co. 21
#38 Nozomu Saito Alpine Electronics 21
#44 Shoji Tatehata Mitsubishi Electric 20
#45 Tatsuo Yamauchi Hitachi Telecom Technologies 19
#45 Fuminori Sato Jasco 19
#45 Hiroshi Hanekawa Agc 19
#48 Ryuji Takahashi Panasonic 18
#48 Katsuhisa Nitta Merck 18
#48 Shinya Wakita Sony 18