Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6781939 | Information recording medium where address mark comprising pattern suitable for prevention of detection error is recorded, and cutting apparatus for reproducing the information recording medium | Hideaki Osawa | 2004-08-24 |
| 6747942 | Optical disk, and method apparatus for recording/reproducing data thereon wherein areas of the disk employ different formats | Hideaki Osawa | 2004-06-08 |
| 6674708 | Information recording medium where address mark comprising pattern suitable for prevention of detection error is recorded, and cutting apparatus for reproducing the information recording medium | Hideaki Osawa | 2004-01-06 |
| 6657937 | Information recording medium where address mark comprising pattern suitable for prevention of detection error is recorded, and cutting apparatus for reproducing the information recording medium | Hideaki Osawa | 2003-12-02 |
| 6625092 | Recording/reproducing optical disk with zig-zag shift headers and recording/reproducing apparatus using same | Hideaki Osawa | 2003-09-23 |
| 6600710 | Information recording medium where address mark comprising pattern suitable for prevention of detection error is recorded, and cutting apparatus for reproducing the information recording medium | Hideaki Osawa | 2003-07-29 |
| 6473381 | Information recording medium where address mark comprising pattern suitable for prevention of detection error is recorded, and cutting apparatus for reproducing the information recording medium | Hideaki Osawa | 2002-10-29 |
| 6351448 | Information recording medium where address mark comprising pattern suitable for prevention of detection error is recorded, and cutting apparatus for reproducing the information recording medium | Hideaki Osawa | 2002-02-26 |
| 6298033 | Recording/reproducing optical disk with constant product of rotation number and number of sector areas and recording/reproducing apparatus using same | Hideaki Osawa | 2001-10-02 |
| 6259658 | Recording/reproducing optical disk with zig-zag shift headers and recording/reproducing apparatus using same | Hideaki Osawa | 2001-07-10 |
| 6215759 | Information recording medium with address marks (AM) for error detection, cutting apparatus for manufacturing the information recording medium, and information reproducing apparatus for reproducing the information recording medium | Hideaki Osawa | 2001-04-10 |
| 6172961 | Optical recording disk having land and groove continuously alternated in spiral tracks | Hideaki Osawa | 2001-01-09 |
| 6128260 | Optical information recording medium and information recording method | Hideaki Osawa | 2000-10-03 |
| 6091688 | Reproducing apparatus by generating slice level at header field of the optical disk | Hideaki Osawa | 2000-07-18 |
| 6064643 | Optical recording disk having land and groove continuously alternated in spiral tracks | Hideaki Osawa | 2000-05-16 |
| 5942001 | Information processing apparatus | Hideki Takahashi, Tomohisa Yoshimaru | 1999-08-24 |
| 5469417 | Information recording/reproducing apparatus for recording or reproducing data, and clock generating circuit incorporated therein | Tsuneshi Yokota, Tomohisa Yoshimaru | 1995-11-21 |
| 5359585 | Information reproducing apparatus with variable digitizing threshold | Tomohisa Yoshimaru, Sueo Ueno | 1994-10-25 |