Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8379633 | Concentrator for speech telephones and method of communication over LAN using same | Shinji Usuba, Tomokazu Konishi | 2013-02-19 |
| 7767289 | Insert-molded article, production method of the insert-molded article and ink | — | 2010-08-03 |
| 7561538 | Concentrator for speech telephones and method of communication over LAN using same | Shinji Usuba, Tomokazu Konishi | 2009-07-14 |
| 7480257 | IP telephone terminal searching for a destination with a telephone number to set up a call connection over an IP network | Tsuneyuki Sakano | 2009-01-20 |
| 7382766 | Line concentrator for telephone set and communication method of LAN | Shinji Usuba, Tomokazu Konishi | 2008-06-03 |
| 6658020 | Voice data exchange system | Masazumi Isaka, Keiji Matsunuma | 2003-12-02 |