Showing 1–20 of 20 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Hideshi Nishiyama | Brother Kogyo | 127 |
| 2 | Yuji Hori | Ngk Insulators | 101 |
| 3 | Takahiro Ikeno | Brother Kogyo | 56 |
| #4 | Tsutomu Shibata | Ngk Spark Plug Co. | 48 |
| #5 | Yuji Hirano | Kao | 19 |
| #6 | Shohei Nagai | Toyota | 18 |
| #7 | Yukio Machida | Toshiba Lifestyle Products & Services | 17 |
| #8 | Masao Hoshino | Fujitsu Limited | 13 |
| #9 | Kanae Matsumura | Toyoda Gosei Co. | 11 |
| #9 | Kazuhisa Sawada | Kao | 11 |
| #11 | Hirotsugu Takahata | Brother Kogyo | 10 |
| #12 | Shigehiro Hayashi | Fujimi Incorporated | 7 |
| #13 | Shigekatsu Uchida | Toyota | 6 |
| #14 | Kunio Fujisaki | Hitachi | 4 |
| #14 | Kanzen Gotou | Hitachi | 4 |
| #14 | Masaaki Tsuchimori | Toyota Central R&D Labs | 4 |
| #14 | Kanzen Goto | Hitachi | 4 |
| #14 | Yasuhiro Ohtsu | Toshiba Lifestyle Products & Services | 4 |
| #19 | Naoko Kawamura | Toshiba Lifestyle Products & Services | 2 |
| #19 | Hisashi RYOTA | Sanyo Machine Works | 2 |