Issued Patents All Time
Showing 76–91 of 91 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6653993 | Plasma display panel driving method and plasma display panel apparatus capable of displaying high-quality images with high luminous efficiency | Nobuaki Nagao, Hidetaka Higashino | 2003-11-25 |
| 6614184 | Display panel and display panel production method | Yoshiki Sasaki, Katsuyosi Yamashita, Masafumi Okawa, Yasuo Takeuchi, Mitsuhiro Otani | 2003-09-02 |
| 6433489 | Plasma display panel and method for manufacturing the same | Hiroyoshi Tanaka, Masaki Aoki, Yuusuke Takada, Nobuaki Nagao, Isamu Inoue +3 more | 2002-08-13 |
| 6353287 | Gaseous discharge panel and manufacturing method therefor | Yoshiki Sasaki, Ryuichi Murai, Hiroyoshi Tanaka, Hideaki Yasui, Masatoshi Kudoh +5 more | 2002-03-05 |
| 6084559 | Plasma-display panel of high luminosity and high efficiency, and a driving method of such a plasma-display panel | Nobuaki Nagao, Yusuke Takada | 2000-07-04 |
| 5781267 | Anti-ferroelectric liquid crystal with black display in one frame, white in other and ratio giving grey scale | Akio Takimoto, Hisahito Ogawa | 1998-07-14 |
| 5426018 | Photochromic material | Kumiko Moriyama, Yoshio Kishimoto | 1995-06-20 |
| 5360699 | Photochromic material and an optical storage medium using the same | Eiji Ando | 1994-11-01 |
| 5241075 | Photochromic spiropyran compounds | Eiji Ando | 1993-08-31 |
| 5155230 | Photochromic dinitrated spiropyrans | Eiji Ando | 1992-10-13 |
| 5095120 | Process for the preparation of photochromic spiropyran compounds | Eiji Ando | 1992-03-10 |
| 4937120 | Optical recording medium and process for producing the same | Eiji Ando | 1990-06-26 |
| 4913948 | Optical recording medium | Eiji Ando | 1990-04-03 |
| 4845240 | Optical recording medium and process for producing the same | Eiji Ando | 1989-07-04 |
| 4803287 | Certain photochromic fulgide compounds and method for their synthesis | Eiji Ando | 1989-02-07 |
| 4658313 | Magnetic shield for rotary actuator in a magnetic disc device | Hatsuo Takahashi | 1987-04-14 |