Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6731101 | Modulation semiconductor integrated circuit device and testing method for oscillation circuit | Katsumi Yamamoto, Tatsuji Matsuura, Masaru Kokubo | 2004-05-04 |
| 6677788 | Semiconductor integrated circuit | Katsumi Yamamoto, Tatsuji Matsuura, Katsumi Osaki | 2004-01-13 |