Showing 1–20 of 20 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Chikao Nagasaka | Mitsubishi Electric | 7 |
| 2 | Hiroshi Inagaki | Ngk Spark Plug Co. | 6 |
| 2 | Yasuyuki Ohdaira | Kabushikikaisha Taiheiseisakusho | 6 |
| #4 | Hideki Miyazaki | Hitachi | 4 |
| #4 | Kunio Ito | Konishiroku Photo Industry Co. | 4 |
| #4 | Atsuo Miyajima | Tokai Rubber Industries | 4 |
| #7 | Shinji Shibata | Toto | 3 |
| #8 | Kazushige Sakazaki | Tokai Rubber Industries | 2 |
| #8 | Ichiro Okamoto | Alcan International Limited | 2 |
| #8 | Masaki Mizutani | Canon | 2 |
| #11 | Kouichi Itoigawa | Mitsubishi Electric | 1 |
| #11 | Akio Saiki | Toyota Industries | 1 |
| #11 | Kazuhisa Itakura | Ngk Spark Plug Co. | 1 |
| #11 | Kuniharu Tanaka | Ngk Spark Plug Co. | 1 |
| #11 | Hisashi Wakako | Ngk Spark Plug Co. | 1 |
| #11 | Tomoyuki Iinuma | Kanefusa Kabushiki Kaisha | 1 |
| #11 | Ryuji Utsuno | Aoyama Seisakusho Co. | 1 |
| #11 | Koji Shiono | Ngk Spark Plug Co. | 1 |
| #11 | Masanori Suda | Ngk Spark Plug Co. | 1 |
| #11 | Shoichi Ohtsuki | Ngk Spark Plug Co. | 1 |