Showing 1–7 of 7 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Yasuo Watanabe | Hitachi | 7 |
| 2 | Hirokazu Tanaka | Canon | 4 |
| 2 | Susumu Saito | Hitachi | 4 |
| #4 | Koichi Watanabe | Hitachi | 2 |
| #5 | Yoshiharu Inoue | NS Sumikin Stainless | 1 |
| #5 | Kenji Tsuruhara | Mitsubishi Chemical | 1 |
| #5 | Toshiya Watanabe | Toto | 1 |
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