Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6675183 | Digital filtering circuit | Takashi Nakamoto | 2004-01-06 |
| 6377968 | Digital filtering circuit | Takashi Nakamoto | 2002-04-23 |
| 5742361 | Data demultiplexer | Yukio Fujii, Hiroshi Gunji, Katsumi Matsuno | 1998-04-21 |
| 5438577 | Error correcting system | Nobukazu Doi | 1995-08-01 |
| 5235538 | Semiconductor operation device with memory for storing operation codes connected from coefficients prior to performing an operation on an input signal | Norio Sumi, Hirotsugu Kojima | 1993-08-10 |
| 5222035 | Digital filter circuit | Hirotsugu Kojima | 1993-06-22 |