Issued Patents All Time
Showing 26–32 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5668879 | Audio scrambling system for scrambling and descrambling audio signals | Susumu Ibaraki, Seiji Nakamura, Hiroki Murakami | 1997-09-16 |
| 5636279 | Scramble apparatus and descramble apparatus | Hiroki Murakami, Susumu Ibaraki, Seiji Nakamura, Toshihide Akiyama, Hiroshi Takeno | 1997-06-03 |
| 5621799 | Scrambled transmission system | Hiroki Murakami, Susumu Ibaraki, Seiji Nakamura | 1997-04-15 |
| 5617476 | Audio scrambling system for scrambling and descrambling audio signals | Susumu Ibaraki, Seiji Nakamura, Hiroki Murakami | 1997-04-01 |
| 5546461 | Scramble system for use in digital video signal recording and reproducing system or transmission and receiving system, comprising scramble apparatus and descramble apparatus | Susumu Ibaraki, Seiji Nakamura, Hiroki Murakami | 1996-08-13 |
| 5515437 | Scramble transmission apparatus and signal processing apparatus | Hiroki Murakami, Susumu Ibaraki, Seiji Nakamura | 1996-05-07 |
| 5377266 | Scramble apparatus and descramble apparatus | Hiroki Murakami, Susumu Ibaraki, Seiji Nakamura, Toshihide Akiyama, Hiroshi Takeno | 1994-12-27 |