Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5345506 | Mutual authentication/cipher key distribution system | Hideki Tsubakiyama, Masayoshi Oohashi | 1994-09-06 |
| 4797887 | Sequential decoding method and apparatus | Norikazu Yamasaki | 1989-01-10 |
| 4748622 | Satellite communication system | Takuro Muratani, Tatsuo Watanabe, Michihisa Ohkawa | 1988-05-31 |
| 4694455 | Decoding method for multiple bit error correction BCH codes | — | 1987-09-15 |
| 4468769 | Error correcting system for correcting two or three simultaneous errors in a code | — | 1984-08-28 |
| 4441826 | Electronic timepiece | Shigeru Morokawa | 1984-04-10 |
| 4320511 | Method and device for conversion between a cyclic and a general code sequence by the use of dummy zero bit series | Yutaka Yasuda, Ryokichi Saga, Yukio Takimoto | 1982-03-16 |
| 4302828 | Electronic timepiece | Shigeru Morokawa, Fukuo Sekiya, Yukio Hashimoto, Yasushi Nomura | 1981-11-24 |
| 4302829 | Electronic timepiece | Shigeru Morokawa, Fukuo Sekiya, Yukio Hashimoto, Yasushi Nomura | 1981-11-24 |
| 4298971 | Electronic timpiece | Shigeru Morokawa | 1981-11-03 |
| 4292680 | Electronic timepiece | Shigeru Morokawa, Fukuo Sekiya, Yukio Hashimoto, Yasushi Nomura | 1981-09-29 |
| 4270194 | Electronic alarm timepiece | Shigeru Morokawa, Fukuo Sekiya, Yukio Hashimoto, Yasushi Nomura | 1981-05-26 |
| 4262351 | Electronic timepiece | Shigeru Morokawa, Fukuo Sekiya, Yukio Hashimoto, Yasushi Nomura | 1981-04-14 |
| 4236241 | Electronic timepiece | Shigeru Morokawa, Fukuo Sekiya, Yukio Hashimoto, Yasushi Nomura | 1980-11-25 |