Issued Patents 2022
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11396451 | Tungsten carbide powder and production method therefor | Masato Michiuchi, Takamasa ONOKI, Katsumi Okamura, Takehiko Hayashi | 2022-07-26 |
| 11339096 | Tungsten carbide powder | Masato Michiuchi, Takamasa ONOKI, Katsumi Okamura, Takehiko Hayashi | 2022-05-24 |
| 11293082 | Powder containing tungsten carbide | Kazuo Sasaya, Takehiko Hayashi | 2022-04-05 |