Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Showing 1–8 of 8 inventors

Rank Inventor Primary Company Patents
1 Masaki Yoshida Unicharm 7
2 Takafumi Chishiro Sharp Kabushiki Kaisha 1
2 Yasuo Ogata Nhk Spring Co. 1
2 Yuhsuke Iwamoto Sharp Kabushiki Kaisha 1
2 Akihiro Isoo Sharp Kabushiki Kaisha 1
2 Ryouichi Yonezawa Sharp Kabushiki Kaisha 1
2 Yuichiro Tani Daiichi Sankyo Company, Limited 1
2 Minoru Aoki Ricoh Company 1