Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8433289 | Communication apparatus | Junichi Hasegawa, Akira Chugo, Yuuji Niwa | 2013-04-30 |
| 7418009 | Method of transferring frames of variable length for a passive optical network that improves network efficiency and simplifies child apparatus | Susumu Tominaga, Masaharu Matsumoto, Katsuhiko Hirashima, Kazuhiro Uchida, Kenichi Abe +3 more | 2008-08-26 |
| 6407984 | Line failure notifying apparatus for terminal apparatus | Kazuyuki Ohmori, Shigeru Murata, Takashi Hashimoto, Akiko Kobayashi | 2002-06-18 |
| 6404881 | Exchange and an exchange system in a communication network | Shigeru Murata | 2002-06-11 |