Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7133615 | Two-optical signal generator for generating two optical signals having adjustable optical frequency difference | — | 2006-11-07 |
| 6889008 | Two-optical signal generator for generating two optical signals having adjustable optical frequency difference | — | 2005-05-03 |
| 6674969 | Two-optical signal generator for generating two opticle signals having adjustable optical frequency difference | — | 2004-01-06 |
| 6040934 | Receptacle-type optical transmission/reception apparatus | Tazuko Tomioka, Shigeru Ohshima | 2000-03-21 |
| 5986787 | Near-infrared communication apparatus | Shigeru Ohshima, Yasuhiko Shimomura | 1999-11-16 |
| 5917625 | High resolution optical multiplexing and demultiplexing device in optical communication system | Shigeru Oshima | 1999-06-29 |
| 5799118 | Integrated optical multiplexer-and-demultiplexer | Shigeru Ohshima | 1998-08-25 |