Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10919125 | Grindstone | Atsushi Takata, Kyosuke Ohashi, Kozo Ishizaki, Norio Onodera | 2021-02-16 |
| 10414020 | Grindstone and grinding/polishing device using same | Atsushi Takada, Kyosuke Ohashi, Kazuya Horie, Kozo Ishizaki | 2019-09-17 |