Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10399854 | Silicon nitride powder, silicon nitride sintered body and circuit substrate, and production method for said silicon nitride powder | Takeshi Yamao, Shinsuke Jida | 2019-09-03 |
| 9085462 | Silicon nitride powder production method, silicon nitride powder, silicon nitride sintered body and circuit substrate using same | Koji Shibata, Takuji Ohmaru, Takeshi Yamao, Masataka Fujinaga, Takayuki Fujii | 2015-07-21 |
| 9022343 | Polycrystalline silicon ingot casting mold and method for producing same, and silicon nitride powder for mold release material for polycrystalline silicon ingot casting mold and slurry containing same | Takeshi Yamao, Shinsuke Jida | 2015-05-05 |
| 8864481 | Mold for casting polycrystalline silicon ingot, and silicon nitride powder for mold release material thereof, slurry containing silicon nitride powder for mold release layer thereof and mold release material for casting thereof | Takeshi Yamao, Shinsuke Jida | 2014-10-21 |