Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7337592 | Porous poly(vinyl acetal) resin body having a high degree of cleanliness, a process of preparing the same, and a method of storing the same | Jun Inoue, Megumi Tanno | 2008-03-04 |
| 6395382 | Sponge sheet | Koji Nagasaka, Shinichi Shimizu | 2002-05-28 |
| 5060424 | Surface grinding apparatus | Takesi Sato, Kenichi Mitsuhashi, Yoji Tomita | 1991-10-29 |
| 4918872 | Surface grinding apparatus | Takesi Sato, Kenichi Mitsuhashi, Yoji Tomita | 1990-04-24 |