Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10924774 | Live interactive system, method, device and computer readable storage medium | — | 2021-02-16 |
| 7454725 | Apparatus and computer readable medium having program for analyzing distributed constant in a transmission line | Koichi Yanagisawa, Toshiro Sato | 2008-11-18 |
| 7355493 | Filter element | Koichi Yanagisawa | 2008-04-08 |
| 7148768 | Filter element | Koichi Yanagisawa | 2006-12-12 |