Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4762695 | Methods for preparing high-purity molybdenum or tungsten powder and high-purity oxides powder of the same | Hiroshi Endo, Shigeo Iiri, Masaru Hayashi, Tsutomu Yamashita, Satoshi Yamaguchi | 1988-08-09 |
| 4414190 | Method of preparing silicon nitride | Katsutoshi Nishida | 1983-11-08 |
| 4377563 | Method of preparing silicon carbide | — | 1983-03-22 |
| 4327066 | Method of preparing silicon carbide | — | 1982-04-27 |
| 4280989 | Method of preparing silicon nitride | Katsutoshi Nishida | 1981-07-28 |