Issued Patents 2004
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6836496 | Semiconductor laser device | Hiroki Ohbo | 2004-12-28 |
| 6821807 | Method of forming nitride-based semiconductor layer, and method of manufacturing nitride-based semiconductor device | Hiroki Ohbo, Nobuhiko Hayashi | 2004-11-23 |
| 6783728 | Free-cutting steel for machine structural use having good machinability in cutting by cemented carbide tool | Yutaka Kurebayashi | 2004-08-31 |
| 6764645 | Steel for machine structural use having good machinability and chip-breakability | Masakazu Hayaishi, Kazuhisa Ishida, Yutaka Kurebayashi, Makoto Hobo | 2004-07-20 |
| 6720196 | Nitride-based semiconductor element and method of forming nitride-based semiconductor | Tatsuya Kunisato, Yasuhiko Nomura, Hiroki Ohbo, Masayuki Hata | 2004-04-13 |