Issued Patents 2003
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6667489 | Heterojunction bipolar transistor and method for production thereof | Isao Suzumura, Katsuyoshi Washio | 2003-12-23 |
| 6653715 | Bipolar transistor | Masao Kondo, Katsuyoshi Washio | 2003-11-25 |
| 6600178 | Heterojunction bipolar transistor | Katsuyoshi Washio, Reiko Hayami, Hiromi Shimamoto, Masao Kondo, Eiji Oue +1 more | 2003-07-29 |
| 6521974 | Bipolar transistor and manufacturing method thereof | Eiji Ohue, Masao Kondo, Katsuyoshi Washio, Masamichi Tanabe, Hiromi Shimamoto | 2003-02-18 |