Issued Patents All Time
Showing 1–25 of 49 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8114803 | Catalyst material and process for preparing the same | Makoto Yuasa, Kenichi Oyaizu, Aritomo Yamaguchi, Hiroshi Ikkanda, Ken Tanaka +5 more | 2012-02-14 |
| 7848200 | Method and apparatus of reproducing multilevel information | Kaoru Okamoto, Jun Sumioka | 2010-12-07 |
| 7808873 | Optical information reproducing method | Jun Sumioka, Kaoru Okamoto | 2010-10-05 |
| 7808874 | Optical information reproducing method | Jun Sumioka, Kaoru Okamoto | 2010-10-05 |
| 7804754 | Optical information recording/reproducing method | Jun Sumioka, Kaoru Okamoto | 2010-09-28 |
| 7778133 | Optical Information recording/reproducing apparatus | Kaoru Okamoto, Jun Sumioka | 2010-08-17 |
| 7738338 | Optical information reproducing method | Jun Sumioka, Kaoru Okamoto | 2010-06-15 |
| 7706243 | Method and apparatus for reproducing optical information | Jun Sumioka, Kaoru Okamoto | 2010-04-27 |
| 7599272 | Method and apparatus for recording and reproducing multi-level information | Jun Sumioka | 2009-10-06 |
| 7593302 | Recording strategy in multilevel recording | Jun Sumioka, Kaoru Okamoto | 2009-09-22 |
| 7573798 | Multi-level information reproducing method | Yasuyuki Miyaoka | 2009-08-11 |
| 6999398 | Method and apparatus for recording information on information recording medium | Yasushi Hozumi, Yasumori Hino | 2006-02-14 |
| 6355743 | Process for producing vinyl chloride polymer in the presence of a chelating agent | Makoto Ooura, Kaname Inoue, Tadashi Amano | 2002-03-12 |
| 6322957 | Light exposure method | Koichiro Nishikawa | 2001-11-27 |
| 6298015 | Magneto-optical reproducing method using a magnified magnetic domain | Kazuyoshi Ishii, Koichiro Nishikawa | 2001-10-02 |
| 6249489 | Information recording-reproducing method utilizing domain wall displacement, and magneto optical medium | Eiichi Fujii, Tsutomu Shiratori, Yasuyuki Miyaoka | 2001-06-19 |
| 6104676 | Apparatus for reproducing magneto-optical information utilizing magnetic domain displacement, method therefor, and method for information recording | — | 2000-08-15 |
| 6022932 | Process for producing vinyl chloride polymer, with iron chelates in coated vessel | Makoto Ooura, Kaname Inoue, Tadashi Amano | 2000-02-08 |
| 5956296 | Information reproducing apparatus for reproducing information by magnetic wall movement | Eiichi Fujii, Tsutomu Shiratori | 1999-09-21 |
| 5956297 | Signal reproducing apparatus using movement of magnetic wall | — | 1999-09-21 |
| 5841755 | Magnetooptical information recording and reproducing apparatus which reproduces information by detecting only portions of light from a recording medium not shielded by a shielding device | Susumu Matsumura, Hiroaki Hoshi, Eiji Yamaguchi | 1998-11-24 |
| 5786117 | Medium and related method and apparatus for recording and reproducing information in cells using multiple interference | Hiroaki Hoshi, Hideki Morishima, Eiji Yamaguchi, Susumu Matsumura | 1998-07-28 |
| 5777974 | Optical head and magneto-optical reproducing apparatus using the same | — | 1998-07-07 |
| 5768219 | Optical information recording/reproducing apparatus that produces verifying reproduction signals by executing a computation using detection signals of multi-divided detection surfaces of a photo-detector | Susumu Matsumura, Hiroaki Hoshi, Eiji Yamaguchi | 1998-06-16 |
| 5717675 | Optical head | — | 1998-02-10 |