Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8014383 | Communication system | Kenji Yamada, Kaori Kai | 2011-09-06 |
| 7796618 | Communication device and communication method using tokens and local counters of discarded packets to maintain order of the packets | Katsuhiko Yamatsu | 2010-09-14 |
| 7715338 | Communication system | Tadashi Nakano | 2010-05-11 |
| 6810112 | Method and apparatus for testing an information notification service | Katsuhiko Yamatsu | 2004-10-26 |
| 5887000 | Centralized test apparatus for ATM exchange system | Hiroshi Adachi, Hiroyuki Kudo | 1999-03-23 |
| 5737338 | ATM exchange and method of testing same | Hiroyuki Kudou, Kazumasa Sonoda, Naoki Aihara | 1998-04-07 |
| 5572189 | Alarm collection apparatus of central maintenance operation center | Kunio Yamamoto, Hidetaka Nishi | 1996-11-05 |
| 4603377 | Main distributing frame board for an electronic switching system | Toshiji Kobayashi, Shigeru Sato | 1986-07-29 |