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

1,028 patents  ·  211 inventors

Ranked #2,968 of 112,640 cities Top 3%

Soka, JP ranks #2,968 worldwide for total patents filed all time, with 1,028 patents from 211 inventors. Leading employers of inventors based in Soka, JP include Sony, Sharp Kabushiki Kaisha, IBM.

Showing 1–50 of 211 inventors

Rank Inventor Primary Company Patents
1 Toshiyuki Hisatsune Sony 50
2 Yoshihiro Wada Sharp Kabushiki Kaisha 42
3 Kazunori Ogata IBM 39
#4 Jun Takayama Sony 38
#5 Rie Ishii Ricoh Company 32
#6 Hiromichi Takahashi Kao 31
#7 Kunihiko Murata Kanto Kagaku 26
#8 Shoichi Makado Smc 25
#9 Nobuyuki Agata Canon 23
#10 Norio Yamada Hitachi 22
#11 Rikiya Kato Nippon Sanso 21
#11 Isamu Takehara Seiko Instruments 21
#13 Toshihiro Kai Nissan Motor Co. 18
#13 Yoshihiro Funamizu Canon 18
#15 Tadahiro Wakui Kawasaki Steel 17
#15 Michikazu Miyamoto Smc 17
#17 Norimasa Sohmiya Ricoh Company 16
#18 Masayuki Kawasaki Pentel Kabushiki Kaisha 15
#18 Masamichi Tajima Smc 15
#20 Masayuki HATORI Nikon 13
#21 Tomozo Sekiguchi Pentel Kabushiki Kaisha 12
#22 Yoshio Asou Smc 11
#22 Mitsuo Zen Senju Metal Industry Co. 11
#22 Kunihiko Yoshikawa Sumitomo Metal Industries 11
#25 Noriaki Fukube Ricoh Company 10
#25 Nobuyuki Otaki Cubic 10
#25 Naotake Oneyama Shoketsu Kinzoku Kogyo Kabushiki Kaisha 10
#28 Keiji Yoshii Kao 9
#28 Ryouji Takei Shofu 9
#28 Takuo Ohwada Kanto Kagaku 9
#28 Ryuichi Fujii Somar 9
#28 Zenshiro Iijima Adger Kogyo Co. 9
#33 Yunosuke Nakagawa Kao Soap Co. 8
#33 Akira Yoneda Panasonic 8
#33 Tsukasa Sasaki Shofu 8
#36 Hideyuki Takata Trinity Industrial 7
#36 Masaichiro Katada Canon 7
#36 Hitomi Hanyu Ricoh Company 7
#36 Kazuma Noguchi Pentel Kabushiki Kaisha 7
#36 Noriko Matsuzawa Canon 7
#41 Takuo Oowada Kanto Kagaku 6
#41 Ichiro Okada Toyota 6
#41 Hisao Sagara Sanyo Electric Co. 6
#41 Hoyo Mizobe Sharp Kabushiki Kaisha 6
#41 Shunichi Takada Canon 6
#46 Takeaki Katayama Kanto Kagaku 5
#46 Nobuo Yokouchi Pentel Kabushiki Kaisha 5
#46 Yuichi Taka Ricoh Company 5
#46 Hiroyoshi Mashine Prince Industrial Development Company 5
#46 Ryohei Aoyama Kao 5

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