Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6407984 | Line failure notifying apparatus for terminal apparatus | Kazuyuki Ohmori, Takamitsu Shirai, Takashi Hashimoto, Akiko Kobayashi | 2002-06-18 |
| 6404881 | Exchange and an exchange system in a communication network | Takamitsu Shirai | 2002-06-11 |
| 6353078 | Polyurethane adhesive, method for use in bonding, and use of mixture | Masahiko Yasuda, Tetsuya Nakajima | 2002-03-05 |