Showing 1–18 of 18 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Koichi Maruyama | Pentax | 10 |
| 2 | Kiyoshi Sakai | Canon | 7 |
| 3 | Norio Shimizu | Kabushiki Kaisha Toshiba | 5 |
| #4 | Shinichiro Sato | Casio Computer Co. | 2 |
| #4 | Takeshi Okamoto | Clarion Co. | 2 |
| #6 | Kouji Nishimura | Denka Company Limited | 1 |
| #6 | Harumi Kawano | Oki Electric Industry Co. | 1 |
| #6 | Tadashi Nagatani | Asahi Kasei Kogyo Co. | 1 |
| #6 | Kenichiro Sugio | Oki Electric Industry Co. | 1 |
| #6 | Syouhei Yamamoto | Oki Electric Industry Co. | 1 |
| #6 | Noboru Fujii | Unknown | 1 |
| #6 | Toshikazu Sakata | Oki Electric Industry Co. | 1 |
| #6 | Kazuo Yuhi | Honda Lock Mfg. Co. | 1 |
| #6 | Hitoshi Kawano | — | 1 |
| #6 | Shingo Takesawa | Asahi Kasei Medical Co. | 1 |
| #6 | Yasuhiro Izumi | Canon | 1 |
| #6 | Tsunenori Yano | Honda Lock Mfg. Co. | 1 |
| #6 | Tanenao Eto | Shionogi & Co. | 1 |