Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5740079 | Method for determining colorimetric value | Yoshihiro Shigemori, Kazuo Sano, Fumiyoshi Saito, Tomiko Yoshida | 1998-04-14 |
| 4417421 | Apparatus for polishing interior surfaces of pipes or the like | Kazuo Akagi, Akihiro Fukuda | 1983-11-29 |