Showing 1–23 of 23 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Yasuhisa Tsujita | Pacific Industrial Co. | 31 |
| 2 | Kunihiko Yoshida | Mitsubishi Mining | 15 |
| 3 | Takeshi Matsuno | Lecip Holdings | 14 |
| #4 | Masayuki Hattori | Central Japan Railway Comany | 9 |
| #4 | Yoshikazu Sumi | Central Japan Railway Comany | 9 |
| #6 | Kouji Andoh | Denso | 7 |
| #7 | Yoshinori Fujihashi | Nippondenso Co. | 5 |
| #8 | Yoji Ida | Ube-Nitto Kasei Co. | 3 |
| #8 | Toshinori Iwata | Pacific Engineering | 3 |
| #8 | Mitsunao Koumura | Kabushiki Kaisha Imasen Denki Seisakusho | 3 |
| #8 | Terumasa MITSU | Pacific Industrial Co. | 3 |
| #8 | Kazuo Shibahara | Kabushiki Kaisha Osaka Packing Seizosho | 3 |
| #13 | Kyoichi Yahata | National University Corporation Tohoku University | 2 |
| #13 | Takahiro Fukaya | Hitachi Chemical Company | 2 |
| #15 | Yoshiaki Kishita | — | 1 |
| #15 | Katsuji Ono | Pacific Industrial Co. | 1 |
| #15 | Kazuhifo Kobayashi | Lecip Holdings | 1 |
| #15 | Shinya Aihara | Toyota | 1 |
| #15 | Jun Ishida | Lecip Holdings | 1 |
| #15 | Masahiko Naganawa | Lecip Holdings | 1 |
| #15 | Yuji Kawasaki | Nanotheta Co | 1 |
| #15 | Hidetsugu Nakai | Sanko Co. | 1 |
| #15 | Masakazu Inami | Sanyo Electric Co. | 1 |