Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Showing 1–10 of 10 inventors

Rank Inventor Primary Company Patents
1 Masashi Sahashi Kabushiki Kaisha Toshiba 4
1 Ryosuke Kainuma Japan Science And Technology Agency 4
1 Shinichi Sakamoto Fujikura 4
#4 Hiroshi Kawasaki Dai Nippon Printing Co. 2
#5 Takanobu Rokuka Sumida 1
#5 Makoto Yasukagawa 1
#5 Juichi Oki Sumida 1
#5 Yoshiyuki Kiyosawa Ricoh Company 1
#5 Yoshiji Takahashi Nikon 1
#5 Shigeru Mahara Sumida 1