Showing 1–11 of 11 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Kei Ishida | Brother Kogyo | 12 |
| 2 | Norimasa Osawa | Ngk Spark Plug Co. | 4 |
| 3 | Kazumi Harasaki | Murata Machinery | 3 |
| 3 | Masazumi Fukushima | Murata Kikai | 3 |
| #5 | Yasuhiro Taga | Brother Kogyo | 2 |
| #5 | Kazuhiko Ogawa | Murata Machinery | 2 |
| #7 | Yasuyuki Okimura | Ngk Spark Plug Co. | 1 |
| #7 | Hiroichi Matsuhisa | Daido Metal Company | 1 |
| #7 | Naruto Adachi | Murata Machinery | 1 |
| #7 | Hiroshige Hiramatsu | Brother Kogyo | 1 |
| #7 | Takuya HANDO | Ngk Spark Plug Co. | 1 |