Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9008320 | Apparatus, system, and method of image processing, and recording medium storing image processing control program | — | 2015-04-14 |
| 8031942 | Matching device | — | 2011-10-04 |
| 7420905 | Information reproducing method judging a multivalued level of a present cell by referring to judged multivalued levels of a preceding cell and an ensuing cell | Akihiko Shimizu | 2008-09-02 |
| 7376066 | Information recording method and an information recording apparatus | — | 2008-05-20 |
| 7350118 | Method and apparatus for recording information in concatenated manner | — | 2008-03-25 |
| 7251207 | Multi-level data processing method and apparatus | Akihiko Shimizu | 2007-07-31 |
| 7197000 | Method of generating an efficient sequence of multi-level random numbers used for an information recording medium | — | 2007-03-27 |
| 7082091 | Information reproducing method judging a multivalued level of a present cell by referring to judged multivalued levels of a preceding cell and an ensuing cell | Akihiko Shimizu, Hiroyuki Miyata, Yasuhide Fujiwara | 2006-07-25 |
| 7046610 | Recording medium suitable for recording/reproducing multi-level data | Yuichi Kadokawa | 2006-05-16 |
| 6888479 | Data processing method, circuit, and apparatus with increased accuracy | Kazunori Takatsu, Akihiko Shimizu, Yuichi Kadokawa | 2005-05-03 |
| 5497194 | Electronic camera for photographing and recording an image and for recording and reproducing a voice | Eiichi Maeda, Masafumi Tanaka | 1996-03-05 |
| 5142380 | Image data processing apparatus | Masafumi Tanaka, Eiichi Maeda | 1992-08-25 |
| 5140322 | Coder unit for variable word length code | — | 1992-08-18 |
| 4977417 | Electrophotography system | Itsuo Takanashi, Toshikatsu Ichitou, Hiroki Kitamura, Takashi Yamamura, Atsushi Nakano | 1990-12-11 |