Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7155035 | Personal authentication method, personal authentication apparatus and image capturing device | Kenji Kondo, Takeo Azuma, Kenya Uomori | 2006-12-26 |
| 6807365 | Video data recording and reproducing apparatus, a video data reproducing apparatus, and a method of recording and reproducing video data with data modification detection | — | 2004-10-19 |
| 6553532 | Method and apparatus for recording and reproducing information on and from disk | — | 2003-04-22 |
| 6469980 | Optical disk and a recording/reproduction apparatus using multiple address block groups shifted oppositely with multiple address blocks and non-pit data | Yoshinari Takemura, Shigeru Furumiya, Takashi Ishida, Shunji Ohara, Yuichi Kamioka +1 more | 2002-10-22 |
| 6456585 | Optical disk and a recording/reproduction apparatus using multiple address block groups shifted oppositely with multiple address blocks having clock synchronization, address number and address ID | Yoshinari Takemura, Shigeru Furumiya, Takashi Ishida, Shunji Ohara, Yuichi Kamioka +1 more | 2002-09-24 |
| 6438096 | Optical disk and a recording/reproduction apparatus using multiple address block groups shifted oppositely with multiple address blocks and clock synchronization | Yoshinari Takemura, Shigeru Furumiya, Takashi Ishida, Shunji Ohara, Yuichi Kamioka +1 more | 2002-08-20 |
| 6396778 | Optical disk and a recording/reproduction apparatus thereof | Yoshinari Takemura, Shigeru Furumiya, Takashi Ishida, Shunji Ohara, Yuichi Kamioka +1 more | 2002-05-28 |
| 6172960 | Optical disk and recording/reproducing apparatus using multiple address block groups shifted oppositely with multiple address blocks | Yoshinari Takemura, Shigeru Furumiya, Takashi Ishida, Shunji Ohara, Yuichi Kamioka +1 more | 2001-01-09 |
| 5930225 | Two-layer optical disk | Takashi Ishida, Mamoru Shoji, Shunji Ohara, Shinichi Konishi, Yoshiyuki Miyabata +2 more | 1999-07-27 |
| 5872767 | Optical disk and an optical disk recording/reproduction device having address blocks located on boundary lines between adjoining tracks | Takahiro Nagai, Isao Satoh, Yuji Takagi, Yuji Hisakado, Shunji Ohara +1 more | 1999-02-16 |
| 5862112 | Optical disk and an optical disk recording reproduction device | Takahiro Nagai, Isao Satoh, Yuji Takagi, Yuji Hisakado, Shunji Ohara +1 more | 1999-01-19 |
| 5835479 | Optical information recording medium | Naoyasu Miyagawa, Takashi Ishida, Shunji Ohara | 1998-11-10 |
| 5809007 | Optical disk and optical disk reproduction apparatus | Yoshinari Takemura, Shunji Ohara, Takashi Ishida, Shigeru Furumiya, Toyoji Gushima | 1998-09-15 |
| 5729525 | Two-layer optical disk | Takashi Ishida, Mamoru Shoji, Shunji Ohara, Shinichi Konishi, Yoshiyuki Miyabata +2 more | 1998-03-17 |