Issued Patents All Time
Showing 26–50 of 89 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5436113 | Information recording medium | Taishi Tsuji, Yasushi Araki, Atsushi Yoshizawa | 1995-07-25 |
| 5431977 | Optical recording medium | Toshiyuki Miyadera, Takashi Chuman, Takashi Yamada | 1995-07-11 |
| 5432048 | Rewritable photochromic optical disc | Hitoshi Taniguchi | 1995-07-11 |
| 5424171 | Optical recording medium | Shuichi Yanagisawa, Satoru Tanaka | 1995-06-13 |
| 5425015 | Photochromic recording with a recording and erasing temperature higher than a reproduction temperature | Hitoshi Taniguchi | 1995-06-13 |
| 5391413 | Optical recording medium | Shuichi Yanagisawa, Tatsuro Sakai, Satoru Tanaka, Takashi Chuman, Yasushi Araki | 1995-02-21 |
| 5386411 | Recordable optical disk and method of manufacturing the same | Shuichi Yanagisawa, Satoru Tanaka | 1995-01-31 |
| 5363356 | Tracking apparatus for optical disk and tracking method of the same with tracking polarity invertor responsive to disk type | Satoru Tanaka, Shuichi Yangisawa | 1994-11-08 |
| 5358923 | Color sheet and color transfer method using the same | Takanori Mitsuhata | 1994-10-25 |
| 5336584 | Optical recording medium | Shuichi Yanagisawa, Tatsuro Sakai, Takashi Chuman, Yasushi Araki | 1994-08-09 |
| 5332608 | Information recording medium | Taishi Tsuji, Yasushi Araki, Atsushi Yoshizawa | 1994-07-26 |
| 5328741 | Optical recording medium | Shuichi Yanagisawa, Tatsuro Sakai, Satoru Tanaka, Takashi Chuman, Yasushi Araki | 1994-07-12 |
| 5328802 | Optical recording medium | Shuichi Yanagisawa, Tatsuro Sakai, Takashi Chuman, Yasushi Araki | 1994-07-12 |
| 5326679 | Recording medium | Shuichi Yanagisawa, Atsushi Yoshizawa, Tatsuro Sakai, Satoru Tanaka, Makoto Okano +3 more | 1994-07-05 |
| 5316899 | Optical recording medium | Toshiyuki Miyadera, Makoto Okano | 1994-05-31 |
| 5292615 | Optical recording medium | Takashi Yamada | 1994-03-08 |
| 5284691 | Optical recording medium and method of reproducing information record on the optical recording medium | Hitoshi Taniguchi | 1994-02-08 |
| 5274624 | Optical recording medium | Takashi Yamada | 1993-12-28 |
| 5252371 | Rewritable photochromic optical disk | Hitoshi Taniguchi, Tsuneki Okazaki, Masaaki Hayami | 1993-10-12 |
| 5246758 | Optical recording medium | Fumihiko Yokogawa | 1993-09-21 |
| 5238723 | Optical recording medium | Atsushi Yoshizawa, Takashi Chuman, Yasushi Araki, Shuichi Yanagisawa | 1993-08-24 |
| 5215868 | Method for recording information via photo-recording medium | Hitoshi Taniguchi | 1993-06-01 |
| 5204153 | Write once read many type optical disc | Makoto Okano, Tatsuro Sakai, Satoru Tanaka, Shuichi Yanagisawa | 1993-04-20 |
| 5204220 | Optical recording medium | Shuichi Yanagisawa, Tatsuro Sakai, Takashi Chuman, Yasushi Araki | 1993-04-20 |
| 5190591 | Langmuir-Blodgett film forming apparatus | Makoto Okano, Toshiyuki Miyadera | 1993-03-02 |