Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6777999 | Exponential conversion circuit and variable gain circuit | Nobuo Kanou, Tetsuro Itakura | 2004-08-17 |
| 6774739 | Frequency converter, orthogonal demodulator and orthogonal modulator | Osamu Watanabe | 2004-08-10 |
| 6677053 | Surface-treated steel sheet and production method therefor | Kenji Morita, Akira Matsuzaki, Masaaki Yamashita, Etsuo Hamada | 2004-01-13 |