Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Showing 1–10 of 10 inventors

Rank Inventor Primary Company Patents
1 Kazuhiko Ishimaru Minolta Co. 7
2 Toshihiro Saruwatari Sanyo Electric Co. 4
3 Toshio Asaumi Sanyo Electric Co. 2
3 Ryouzou Imanishi Kubota 2
3 Shigeru Wada Minolta 2
#6 Ryuji Naide Kayaba Industry Co. 1
#6 Tadashi Shinjo Yugenkaisha Shinjo Seisakusho 1
#6 Takuji Nakai Nippon Steel & Sumitomo Metal 1
#6 Tokuji Matsuda Konica Minolta Opto 1
#6 Hiroyuki Kannou Sanyo Electric Co. 1