Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5668632 | Method of measuring the soiling of flooring surfaces | Yasunobu Shimomura | 1997-09-16 |
| 4614438 | Method of mixing fuel oils | — | 1986-09-30 |
| 4199983 | Apparatus for detecting the level of liquid in a tank | Kenji Yamauchi | 1980-04-29 |