Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6540807 | Anti-mold and anti-bacteria air filter | Hidco Shiozawa | 2003-04-01 |
| 6165243 | Anti-mold and anti-bacteria air filter | Hideo Shiozawa | 2000-12-26 |
| 5677501 | Flow display type indicating method and apparatus | Masaaki Nagai | 1997-10-14 |
| 5555552 | Apparatus for quickly capturing cordless telephone channel to be measured | — | 1996-09-10 |
| 5352996 | Interdigital bandpass filter | — | 1994-10-04 |