Showing 1–17 of 17 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Yuichi Yoshii | Toto | 4 |
| 2 | Satoshi Kawaguchi | Panasonic | 3 |
| 3 | Hironori Yamasaki | Toto | 2 |
| 3 | Yasuhiko Akaike | Kabushiki Kaisha Toshiba | 2 |
| 3 | Seiichi Mizuno | Zensho Holdings Co. | 2 |
| 3 | Takuma Wada | Toto | 2 |
| #7 | Ryosuke Konda | Denka Company Limited | 1 |
| #7 | Masahiro Kozako | Kabushiki Kaisha Toshiba | 1 |
| #7 | Koichiro Matsushita | Toto | 1 |
| #7 | Naoya Takai | Kabushiki Kaisha Toshiba | 1 |
| #7 | Shinji Nunotani | Kabushiki Kaisha Toshiba | 1 |
| #7 | Junichi Iwasawa | Toto | 1 |
| #7 | Tomoaki Morita | Toto | 1 |
| #7 | Duncan Edward Hughes | Unknown | 1 |
| #7 | Toyojiro Matsuishi | Kurume University | 1 |
| #7 | Masanobu Iwamoto | Kabushiki Kaisha Toshiba | 1 |
| #7 | Hidetaka Nishi | NTT | 1 |