Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5815564 | System for connecting an incoming call to a selected one of a number of extensions | Takuo Tsuzuki, Masahiro Kumon, Yoshiharu Kondoh, Mitsuhiro Kotake | 1998-09-29 |
| 5563940 | System for connecting an incoming call to a selected one of a number of extensions | Takuo Tsuzuki, Masahiro Kumon, Yoshiharu Kondoh, Mitsuhiro Kotake | 1996-10-08 |
| 5541992 | System for connecting an incoming call to a selected one of a number of extensions | Takuo Tsuzuki, Masahiro Kumon, Yoshiharu Kondoh, Mitsuhiro Kotake | 1996-07-30 |