Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7672237 | Node capable of saving a third-layer operation | — | 2010-03-02 |
| 7664874 | Node capable of saving a third-layer operation | — | 2010-02-16 |
| 6957271 | Node capable of saving a third layer packet handling operation in a synchronous optical network | — | 2005-10-18 |
| 6804268 | Method and apparatus for multi-access transmission | — | 2004-10-12 |
| 6690649 | QoS management apparatus | — | 2004-02-10 |
| D485376 | Light emitting device | Seiji Iida, Kazuo Fukuoka, Koichi Genei, Satoshi Komoto | 2004-01-13 |
| 6647014 | Distributed network node | — | 2003-11-11 |
| 6557112 | QOS protection system | — | 2003-04-29 |
| 6483809 | High speed transfer of failure information in an ATM network | — | 2002-11-19 |
| D456534 | Light emitting device | Seiji Iida, Kazuo Fukuoka, Koichi Genei, Satoshi Komoto | 2002-04-30 |
| D454966 | Light emitting device | Seiji Iida, Kazuo Fukuoka, Koichi Genei, Satoshi Komoto | 2002-03-26 |
| 6292502 | Multiple quantum well semiconductor laser diode and DVD system using the same | — | 2001-09-18 |
| 6247051 | High speed transfer of failure information in an ATM network | — | 2001-06-12 |
| 6144642 | Signal transfer device in a telecommunications network | — | 2000-11-07 |
| 6101167 | Path switching system | — | 2000-08-08 |
| 5511077 | Frame transmission system | — | 1996-04-23 |
| 5434858 | Virtual tributary path idle insertion using timeslot interchange | — | 1995-07-18 |
| 5289487 | Semiconductor laser device having uniform and reproducible laser characteristics | — | 1994-02-22 |
| 5187704 | Monitoring method for stand-by circuits suitable for a multiplexing/demultiplexing apparatus | Yasushi Ohno, Masaaki Saito | 1993-02-16 |
| 5157682 | Integrated semiconductor laser device | — | 1992-10-20 |
| 4982409 | Semiconductor laser device | Hideaki Kinoshita | 1991-01-01 |
| 4949339 | Multiplexer apparatus adaptable for two kinds of transmission rates | Toshiyuki Nishina, Hiroyuki Sugawara | 1990-08-14 |
| 4799228 | Transverse-mode stabilized semiconductor laser diode with slab-coupled waveguide | Hiroko Nagasaka, Gen-ichi Hatakoshi, Motoyuki Yamamoto, Masaki Okajima, Yoshio Iizuka +3 more | 1989-01-17 |
| 4691321 | Semiconductor laser device having current confining and built-in waveguide structure | Nawoto Motegi, Yukio Watanabe, Masaki Okajima | 1987-09-01 |