Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6955358 | Oil seal | Keisaku Iwakata | 2005-10-18 |
| 6044501 | Temperature confirmation mechanism for use with water supply equipment | — | 2000-04-04 |
| 5969601 | Apparatus and method for predicting replacement timing of engine lubricating oil | Fumihide Sato | 1999-10-19 |
| 5960485 | Bidet | — | 1999-10-05 |
| 5937451 | Bidet apparatus | — | 1999-08-17 |
| 5779618 | Centrifugal separating filter | Yasuyuki Onodera | 1998-07-14 |