Showing 1–8 of 8 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Toshiyuki Okayasu | Advantest | 118 |
| 2 | Masao Funo | Johnson & Johnson | 7 |
| 3 | Etsuo Shimamura | Toppan Printing Co. | 2 |
| 3 | Mitsuko Yoshioka | Nippon Chemiphar Co. | 2 |
| #5 | Yashuyuki Fukuashima | Wacom Co. | 1 |
| #5 | Masayuki Aoshika | Ishikawajima-Harima Jukogyo | 1 |
| #5 | Zenji Oyabu | — | 1 |
| #5 | Masami Terazono | Kewpie | 1 |