Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Yamagata, JP ranks #1,942 worldwide for total patents filed in 2021, with 69 patents from 42 inventors. Leading employers of inventors based in Yamagata, JP include Sharp Kabushiki Kaisha, Tdk, Mitsubishi Gas Chemical Company.

Showing 1–42 of 42 inventors

Rank Inventor Primary Company Patents
1 Takuya Watanabe Sharp Kabushiki Kaisha 10
2 Setu Tsuchida Tdk 4
3 Kazuaki KAWASHITA Mitsubishi Gas Chemical Company 3
3 Hiroyuki Dohi Pioneer 3
3 Kiyoyuki Okuyama Yanmar Holdings Co. 3
#6 Hiroshi Asawa Seiko Epson 2
#6 Yohei KAWABATA BOE 2
#6 Hideki Hahiro Seiko Epson 2
#6 Takamasa Ishikawa Hitachi 2
#6 Takayuki Kamei Kabushiki Kaisha Toshiba 2
#6 Miki Kusakabe Tdk 2
#6 Satoru Hiwatari Pioneer 2
#6 Kazuki ABE Mitsubishi Hitachi Power Systems 2
#6 Mako Abe Tpr Co. 2
#15 Takafumi Noda Seiko Epson 1
#15 Masaki Tsunekane Nec 1
#15 Masatoshi Suda Koken Co. 1
#15 Yousuke Matsuyama Mitsubishi Gas Chemical Company 1
#15 Emi Ito Tdk 1
#15 Akira Otake Canon 1
#15 Masayuki Itagaki Mitsumi Electric Co. 1
#15 Hitoshi Oba Omron 1
#15 Mohee Sagae Micron 1
#15 Kana Ishida Spiber 1
#15 Yasutomo TOKAIRIN Tpr Co. 1
#15 Norihiro Kon Nisshin Steel Co. 1
#15 Atsushi Igarashi Seiko Instruments 1
#15 Tomokazu Shibuya Sumitomo Rubber Industries 1
#15 Hayami Kondo Pioneer 1
#15 Yuzuru TSUKAMOTO Seiko Epson 1
#15 Mitsuharu Suzuki Suzuki Manufacturing 1
#15 Yuusuke Okuyama Tpr Co. 1
#15 Takahiro IWAMIYA 1
#15 Hisahiro Sasabe Udc Ireland Limited 1
#15 Syunsuke Hirano Mitsubishi Gas Chemical Company 1
#15 Tohru Sakuma Suzuki Manufacturing 1
#15 Hidetoshi Abe 3M 1
#15 Kazu Wagatsuma Panasonic 1
#15 Daisuke Noto Casio Computer Co. 1
#15 Ayako Yoshida Pioneer 1
#15 Masahiko Hirasawa Seiko Epson 1
#15 Ayumi Abe Spiber 1