Showing 1–15 of 15 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Osamu Iwasaki | Canon | 12 |
| 2 | Toshifumi Otsubo | Unicharm | 10 |
| 3 | Takayoshi Konishi | Unicharm | 7 |
| #4 | Takeshi Tanimoto | Sony | 2 |
| #4 | Satoshi Mitsuno | Unicharm | 2 |
| #6 | Akemi Tsuchiya | Unicharm | 1 |
| #6 | Tomoko Tsuji | Unicharm | 1 |
| #6 | Hiroyuki Tanji | Unicharm | 1 |
| #6 | Toru Oba | Unicharm | 1 |
| #6 | Naoto Ohashi | Unicharm | 1 |
| #6 | Seiji Murakami | Kikkoman | 1 |
| #6 | Akiyoshi Kinoshita | Unicharm | 1 |
| #6 | Yasuhiro Yamanaka | Sony | 1 |
| #6 | Takayuki Onishi | Sumitomo Electric Industries | 1 |
| #6 | Masashi Nakashita | Unicharm | 1 |