Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Sagamihara, JP ranks #2,387 worldwide for total patents filed all time, with 1,311 patents from 27 inventors. Leading employers of inventors based in Sagamihara, JP include Hitachi, Kabushiki Kaisha Toshiba, Olympus.

Showing 1–27 of 27 inventors

Rank Inventor Primary Company Patents
1 Masayuki Yamamoto Hitachi 300
2 Masayuki Tanaka Kabushiki Kaisha Toshiba 250
3 Masashi Yamada Olympus 106
#4 Noboru Ishida Ngk Spark Plug Co. 90
#5 Tatsuo Tanaka Konica Minolta 74
#6 Toshinori Watanabe Alps Electric Co. 70
#7 Masanori Hayashi Honda Motor Co. 65
#8 Yoshitaka Kubota Renesas Electronics 54
#9 Tetsuo Okamoto Yamaha 48
#10 Takehiko Hayashi Fujitsu Limited 38
#10 Motohiko Sato Ngk Spark Plug Co. 38
#12 Yutaka Kimura Nissan Chemical Industries 29
#13 Kazuya Takeda Dainippon Screen Mfg. Co. 21
#14 Sumio Ogawa Elpida Memory 19
#15 Shigeharu Ootsuka Mitsubishi Electric 18
#16 Masato Hidaka Smk 16
#17 Masaki Tanabe Canon 13
#17 Yuji Oishi Nissan Motor Co. 13
#17 Masanao Abe Pentax 13
#20 Shoichi Okazaki Mitsubishi 7
#20 Toshio Okumura Ngk Spark Plug Co. 7
#22 Kazuhiro Tsuboi Toyota 6
#23 Hironobu Kawai Hochiki 5
#24 Koji Naruse Yazaki 4
#25 Tomio Adachi Teijin Limited 3
#26 Tooru Yokota Jatco 2
#26 Tatsuya Yamazawa Tokico 2