Showing 1–10 of 10 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Eiichi Takahashi | Fujitsu Limited | 58 |
| 2 | Masayuki Ishibashi | Brother Kogyo | 50 |
| 3 | Hiroaki Matsui | Ricoh Company | 44 |
| #4 | Norimi Asahara | Toyota | 35 |
| #5 | Susumu Okawa | Toyota | 33 |
| #6 | Michio Kimura | Ricoh Company | 31 |
| #7 | Satoru Nitta | Toshiba Kikai | 20 |
| #8 | Masao Kitano | Nippon Shokubai Kagaku Kogyo Co. | 10 |
| #8 | Masakazu Nakada | Ricoh Company | 10 |
| #10 | Ryouichi Shimooka | Makita | 2 |