Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10014857 | Signal output circuit | — | 2018-07-03 |
| 6262973 | SDH wireless transmission apparatus | Ichiro Ayukawa, Kimihiko Yoshimura, Hisamichi Hazama, Kimio Watanabe, Shingo Mizuno +1 more | 2001-07-17 |
| 6158009 | Communication monitoring and controlling apparatus | Ichiro Ayukawa, Yoshiko Koizumi, Kazutoshi Kawamura, Kimio Watanabe | 2000-12-05 |