Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9577819 | Communication device, pulse signal delay adjustment method and communication system | Masato Hashizume, Hisanori Okano | 2017-02-21 |
| 8184665 | Network device | Tatsuya Oku, Masato Hashizume | 2012-05-22 |
| 5600648 | SDH transmission system | Tomohisa Furuta, Kouji Tanonaka | 1997-02-04 |