Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5815564 | System for connecting an incoming call to a selected one of a number of extensions | Takuo Tsuzuki, Yoshiharu Kondoh, Mitsuhiro Kotake, Masayuki Hashimura | 1998-09-29 |
| 5563940 | System for connecting an incoming call to a selected one of a number of extensions | Takuo Tsuzuki, Yoshiharu Kondoh, Mitsuhiro Kotake, Masayuki Hashimura | 1996-10-08 |
| 5541992 | System for connecting an incoming call to a selected one of a number of extensions | Takuo Tsuzuki, Yoshiharu Kondoh, Mitsuhiro Kotake, Masayuki Hashimura | 1996-07-30 |
| 4969182 | Method of telephone call wherein status data inhibits calls and indicates to the caller the reason the called subscriber is unavailable | Toko Ohtsubo, Yoshikatsu Inokuma, Akihiro Usui | 1990-11-06 |