Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7639676 | SIP server | Minoru Nishida, Kousei Kataoka, Miwa Kususe | 2009-12-29 |
| 6978145 | Multimedia signal processing apparatus | Masanobu Shigyo, Yukimasa Takahira, Junji Satoh, Kusuo Yonezawa, Hidetoshi Kawakami +2 more | 2005-12-20 |