Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8391113 | Optical disc for tuple-speed recording and optical disc device for tuple-speed recording | Morio Nakatani, Kazuo Watabe, Yutaka Kashihara, Akihito Ogawa, Yutaka Yamanaka +2 more | 2013-03-05 |
| 7643394 | Optical disk, optical disk recording method, and optical disk recording apparatus | Yutaka Kashihara, Hideki Takahashi, Akihito Ogawa, Yutaka Yamanaka, Shigeru Shimonou +3 more | 2010-01-05 |
| 7492697 | Optical disc recording method and apparatus | Tsuyoshi Yamamoto, Katsuki Hattori, Yutaka Yamanaka, Tatsunori Ide, Shigeru Shimonou +3 more | 2009-02-17 |
| 7478306 | Method of detecting error location, and error detection circuit, error correction circuit, and reproducing apparatus using the method | Miyuki Okamoto, Satoshi Kanai | 2009-01-13 |
| 7345974 | Optical recording/reproducing apparatus | Takanori Kishida, Tsuyoshi Yamamoto, Katsumi Hattori, Hiroshi Watanabe | 2008-03-18 |
| 6542865 | Method and apparatus for subband coding, allocating available frame bits based on changable subband weights | Fumiaki Nagao, Miyuki Okamoto | 2003-04-01 |
| 6510490 | Write cache circuit, recording apparatus with write cache circuit, and write cache method | Miyuki Okamoto | 2003-01-21 |
| 6434686 | Address generating circuit | Masaru Matsui | 2002-08-13 |
| 6345285 | Logarithmic value calculation circuit | Fumiaki Nagao | 2002-02-05 |
| 6308194 | Discrete cosine transform circuit and operation method thereof | Masaru Matsui | 2001-10-23 |
| 6119260 | Decoder for executing error correction and error detection in parallel | Shinichiro Tomisawa | 2000-09-12 |
| 6069855 | Synchronous circuit and optical disk reproduction device capable of realizing more precise synchronization | Miyuki Okamoto | 2000-05-30 |
| 5402406 | Read only digital audio information recording medium and digital dubbing system therefor | Nagatoshi Sugihara | 1995-03-28 |
| 5331617 | Audio data recording/reproduction device having digital high speed dubbing function and audio data dubbing system using such devices | Yutaka Tamura, Nagatoshi Sugihara, Takao Inoue, Miyuki Okamoto | 1994-07-19 |
| 5323367 | Reproduction or recording device having a pause function | Yutaka Tamura, Nagatoshi Sugihara, Takao Inoue, Miyuki Okamoto | 1994-06-21 |