Showing 1–23 of 23 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Yoshihiro Nakamura | Ngk Spark Plug Co. | 87 |
| 2 | Katsumi Inukai | Brother Kogyo | 75 |
| 3 | Takashi Ohama | Brother Kogyo | 66 |
| #4 | Yuji Hashimoto | Toyota Industries | 55 |
| #5 | Sadao Kokubu | Mitsubishi Electric | 49 |
| #6 | Isao Ito | — | 40 |
| #7 | Takaaki Mukai | Canon | 19 |
| #8 | Yasutami Kito | Otis Elevator | 12 |
| #8 | Hiroyuki Tsukada | Kabushiki Kaisha Toshiba | 12 |
| #10 | Tetsumi Ichioka | Toyoda Gosei Co. | 10 |
| #11 | Motonobu Ando | Brother Kogyo | 9 |
| #11 | Shinji Kumazawa | Ngk Spark Plug Co. | 9 |
| #13 | Katsura Matsubara | Ngk Spark Plug Co. | 8 |
| #13 | Tomoaki Okita | Toyoda Gosei Co. | 8 |
| #15 | Kiyoshi Mizukoshi | Maruko Seiyaku Co. | 5 |
| #15 | Toshiro Kurusu | Sony | 5 |
| #15 | Tsutomu Ishida | Sanwa Kagaku Kenkyusho Co. | 5 |
| #15 | Mikitoshi Hiraga | Sintobrator | 5 |
| #19 | Tomohisa Fujita | Ngk Spark Plug Co. | 4 |
| #20 | Ken Mizumukai | Kayaba Kogyo | 3 |
| #21 | Akiko HOSHINO | Mitsubishi Electric | 2 |
| #21 | Takaya Hirai | Ngk Spark Plug Co. | 2 |
| #21 | Kiyoshi Taira | Daio Paper | 2 |