Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8900337 | Method for producing alumina sintered body, alumina sintered body, abrasive grains, and grindstone | Shinichiro Tomikawa, Takeshi IEMURA | 2014-12-02 |
| 8894730 | Alumina sintered body, abrasive grains, and grindstone | Shinichiro Tomikawa, Takeshi IEMURA | 2014-11-25 |
| 8882871 | Alumina sintered body, abrasive grains, and grindstone | Shinichiro Tomikawa, Takeshi IEMURA | 2014-11-11 |
| 7789330 | Roundish fused alumina particles, production process thereof, and resin composition containing the particles | Shinichiro Tomikawa | 2010-09-07 |
| 7264185 | Dry grinding system and dry grinding method | Shinichiro Tomikawa | 2007-09-04 |
| 7083130 | Dry grinding system and dry grinding method | Shinichiro Tomikawa | 2006-08-01 |