Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7280763 | Terminal apparatus and controlling method for optical output power | Katsuji Yamaguchi, Kenichi Shinmura, Masato Nagayama | 2007-10-09 |
| 5949563 | Wavelength division multiplexing transmitter receiver, optical transmission system, and redundant system switching method | — | 1999-09-07 |
| 5914992 | Hunting sub-frame patterns distributed in sub-frames of a transmission signal | — | 1999-06-22 |
| 5703409 | Error counting circuit | Katsumi Fukumitsu | 1997-12-30 |
| 5303241 | Demultiplexing system for word interleaved higher order signals in a digital communication system | Haruki Watanabe | 1994-04-12 |