Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4421615 | Process for producing metallic gallium | Koichi Yamada, Takuo Harato, Hisakatsu Kato | 1983-12-20 |
| 4344904 | Sintering method of zirconia | Koichi Yamada | 1982-08-17 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4421615 | Process for producing metallic gallium | Koichi Yamada, Takuo Harato, Hisakatsu Kato | 1983-12-20 |
| 4344904 | Sintering method of zirconia | Koichi Yamada | 1982-08-17 |