Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6641473 | Grinding wheel with abrasive segment chips including at least two abrasive segment chips whose circumferential lengths are different from each other | Koji Ogawa, Kazumasa Yoshida | 2003-11-04 |
| 6589304 | Method of bonding porous abrasive solid mass to base member with provision of sealing film on bonding surface of the abrasive solid mass | Kazumasa Yoshida, Tomoharu Kondo | 2003-07-08 |