Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6112171 | Methods of efficiently recording and audio signal in semiconductor memory | Kazuhiro Sugiyama, Yoshinobu Ishida | 2000-08-29 |
| 5892884 | Apparatus for controlling a sum of a varying information amount of a video signal and a varying information amount of an audio signal so that the sum is within a predetermined amount of data range | Kazuhiro Sugiyama, Ken Onishi, Kimitoshi Hongo | 1999-04-06 |
| 5889921 | Apparatus for controlling a sum of varying information amount of a video signal and a varying information amount of an audio signal so that the sum is within a predetermined amount of data range | Kazuhiro Sugiyama, Ken Onishi, Kimitoshi Hongo | 1999-03-30 |
| 5878183 | Digital video/audio recording and reproducing apparatus | Kazuhiro Sugiyama, Ken Onishi, Kimitoshi Hongo | 1999-03-02 |
| 5864801 | Methods of efficiently recording and reproducing an audio signal in a memory using hierarchical encoding | Kazuhiro Sugiyama, Yoshinobu Ishida | 1999-01-26 |
| 5774843 | Methods of efficiently recording an audio signal in semiconductor memory | Kazuhiro Sugiyama, Yoshinobu Ishida | 1998-06-30 |
| 5752221 | Method of efficiently recording an audio signal in semiconductor memory | Kazuhiro Sugiyama, Yoshinobu Ishida | 1998-05-12 |
| 5630010 | Methods of efficiently recording an audio signal in semiconductor memory | Kazuhiro Sugiyama | 1997-05-13 |
| 5495552 | Methods of efficiently recording an audio signal in semiconductor memory | Kazuhiro Sugiyama, Yoshinobu Ishida | 1996-02-27 |
| 5434716 | Digital video/audio recording and reproducing apparatus | Kazuhiro Sugiyama, Ken Onishi, Kimitoshi Hongo | 1995-07-18 |
| 5309290 | Apparatus for variably compressing video and audio information within constant data block | Kazuhiro Sugiyama, Ken Onishi, Kimitoshi Hongo | 1994-05-03 |