Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6635323 | Raw material for production of GaAs crystals | Tadashi Kihara, Kenichi Tayama | 2003-10-21 |
| 6533838 | High purity gallium for preparation of compound semiconductor, and method and apparatus for purifying the same | Hidekazu Kato, Takashi Ohgami, Kishio Tayama, Kanichi Okuda | 2003-03-18 |