Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Tsurugashima, JP ranks #2,294 worldwide for total patents filed all time, with 1,380 patents from 227 inventors. Leading employers of inventors based in Tsurugashima, JP include Sony, Ricoh Company, Pioneer.

Showing 1–50 of 227 inventors

Rank Inventor Primary Company Patents
1 Yukio Kubota Sony 75
2 Masahide Inoue Ricoh Company 62
3 Masakazu Ogasawara Pioneer 58
#4 Shin Murakami Canon 41
#5 Shogo Miyanabe Pioneer 33
#6 Yoshimi Tomita Pioneer 31
#7 Tetsuya Horiuchi GE 29
#8 Toshiya Yoshida Toyo Denso Kabushiki Kaisha 26
#9 Kazuhisa Kitamura Murata Manufacturing Co. 25
#9 Hidemi Usuba Pioneer Electronic 25
#9 Kazuo Kameya Elmec 25
#12 Kunihiro Minoshima Pioneer 21
#12 Taishi Tsuji Pioneer 21
#14 Hisao Iwanade Pentax 20
#15 Manabu Nohara Pioneer 18
#16 Takuya Hata Pioneer 17
#17 Tadashi Hatamachi Nippon Conlux Co. 16
#17 Kazuto Sakemura Pioneer 16
#17 Shuuichi Yanagisawa Pioneer 16
#20 Shinichi Gayama Pioneer 15
#20 Ken'etsu Yokogawa 15
#22 Masao Jyojiki Pentax 14
#22 Yasunobu Kawakami Honda Motor Co. 14
#22 Hiroshi Sonoda Mitsui Chemicals 14
#22 Yoshitaka Noguchi Toyo Denso Kabushiki Kaisha 14
#22 Kazuhiro Tabuchi Kabushiki Kaisha Toshiba 14
#27 Yoshihiro Ushigusa Surpass Industry Co. 13
#27 Yoshifumi Kuroki Panasonic 13
#27 Nong Chen Pioneer 13
#30 Masakazu Yamagata Pentax 12
#30 Shoji Kishi Toyo Denso Kabushiki Kaisha 12
#30 Yoshiaki Kojima Pioneer 12
#30 Seiichi Hasebe Pioneer Electronic 12
#30 Tomo Watanabe Pioneer 12
#30 Masatoshi Kusama Taiyo Ink Mfg. Co. 12
#36 Tetushi Otake Toko Co. 11
#36 Michikazu Hashimoto Pioneer 11
#36 Xijun LI National Institute For Materials Science 11
#39 Kazuyoshi Uchino Unisia Jkc Steering Systems Co. 10
#39 Noboru Yamagishi Nippon Conlux Co. 10
#39 Yukikazu Yatabe Toko Co. 10
#39 Hiroshi Ohata Kyocera 10
#39 Takayuki Akimoto Pioneer 10
#39 Jun Funaki Fujitsu Limited 10
#45 Hiroyuki Shinohara Enplas 9
#45 Kazuhisa Sano Toko Co. 9
#45 Masaru Umezawa Pioneer Electronic 9
#45 Shoji Kamasako Pentax 9
#45 Yuji Homma Dai Nippon Insatsu 9
#45 Koichi Nagaki Pioneer 9