Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7672571 | Reproduction apparatus for selectively switching between first information and second information | — | 2010-03-02 |
| 7647607 | Viewing limit apparatus, viewing limit system, and viewing limit program | — | 2010-01-12 |
| 7139032 | Method and apparatus for processing a plurality of format types of video signals which include closed-caption data | — | 2006-11-21 |
| 6798458 | Image signal conversion equipment | — | 2004-09-28 |
| 6587153 | Display apparatus | — | 2003-07-01 |
| 5771296 | Audio circuit | — | 1998-06-23 |
| 5365276 | Multiscreen display circuit for displaying video signal sources having different aspect ratios | Kiyoshi Imai, Yutaka Nio, Ken Sakamoto, Keiya Miyoshi, Mitsuji Okawa | 1994-11-15 |
| 5138450 | High density character and/or figure displaying apparatus | Shin Fukuda, Ken Sakamoto, Tomoji Kondo, Takashi Yamaguchi | 1992-08-11 |
| 5010406 | Apparatus for receiving character multiplex broadcasting | Toshikatsu Kawakami, Shin Fukuda, Hiroyasu Shinbo, Ken Sakamoto, Tomoji Kondo | 1991-04-23 |