Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Showing 1–17 of 17 inventors

Rank Inventor Primary Company Patents
1 Jun Takayama Sony 3
1 Mitsuo Zen Senju Metal Industry Co. 3
3 Norio Yamada Hitachi 2
3 Kazuma Noguchi Pentel Kabushiki Kaisha 2
3 Yoshihiro Wada Sharp Kabushiki Kaisha 2
3 Shoichi Makado Smc 2
3 Keiji Yoshii Kao 2
#8 Noriaki Fukube Ricoh Company 1
#8 Takuo Ohwada Kanto Kagaku 1
#8 Nobuyuki Otaki Cubic 1
#8 Kaoru Ikegami Kanto Kagaku 1
#8 Isamu Takehara Seiko Instruments 1
#8 Noriko Matsuzawa Canon 1
#8 Masayuki Kawasaki Pentel Kabushiki Kaisha 1
#8 Norimasa Sohmiya Ricoh Company 1
#8 Rikiya Kato Nippon Sanso 1
#8 Junko Sekiguchi GE 1