Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5519874 | Application execution control method and system for servicing subscribers via a switchboard connected to a computer using an application management table | Junko Yamagishi, Takuo Tsuzuki, Noboru Mizuhara, Tetsuo Sakuma | 1996-05-21 |
| 5197096 | Switching method and apparatus having subscriber state management function | Tetsuo Sakuma, Noboru Mizuhara, Junko Yamagishi | 1993-03-23 |
| 4920529 | Network control method and apparatus therefor | Ryoichi Sasaki, Tsutomu Nakamura, Michio Suzuki, Kohsuke Shinnai, Nobuhiko Ido | 1990-04-24 |