Showing 1–12 of 12 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Osamu Iwasaki | Canon | 17 |
| 2 | Toshifumi Otsubo | Unicharm | 9 |
| 3 | Hiroyuki Tanji | Unicharm | 4 |
| #4 | Norihiko Ishikawa | Unicharm | 2 |
| #5 | Takayoshi Konishi | Unicharm | 1 |
| #5 | Tomoko Tsuji | Unicharm | 1 |
| #5 | Toshimitsu Baba | Unicharm | 1 |
| #5 | Satoshi Mitsuno | Unicharm | 1 |
| #5 | Katsushi Tomita | Unicharm | 1 |
| #5 | Yasuhiro Yamanaka | Sony | 1 |
| #5 | Jun Okuda | Unicharm | 1 |
| #5 | Akiyoshi Kinoshita | Unicharm | 1 |