Showing 1–7 of 7 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Hiroshi Inagaki | Ngk Spark Plug Co. | 3 |
| 1 | Masaki Nakagawa | Ricoh Company | 3 |
| 3 | Tatsuhiro Yoshimura | Okuma | 2 |
| 3 | Hideki Miyazaki | Hitachi | 2 |
| #5 | Kimihiro Kishi | Mitsubishi Electric | 1 |
| #5 | Hiromitsu Mizuno | Mitsubishi Electric | 1 |
| #5 | Kunio Ito | Konishiroku Photo Industry Co. | 1 |