Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8983498 | Communication apparatus and method for controlling communication system | Takahiro Fujii, Satoru Hirasawa, Yoshiaki Fukunaga, Takayuki Ohtsuka, Tomohiro Sakai +1 more | 2015-03-17 |
| 7813748 | Group communications switching method, subscriber terminal and server used for the method | Takahito Suzuki, Saiki Kawamura, Naoyuki Kakizaki, Yayoi Itoh, Kiyomi Hasesaka +6 more | 2010-10-12 |
| 6636588 | Intelligent network system | Shouichi Kimura, Yayoi Itoh, Kiyoshi Oshimi, Yoshikazu Takeda, Michiko Osawa | 2003-10-21 |