Issued Patents All Time
Showing 76–92 of 92 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6823142 | Polarization mode dispersion compensating apparatus | Hideaki Tanaka, Masashi Usami | 2004-11-23 |
| 6636187 | Display and method of driving the display capable of reducing current and power consumption without deteriorating quality of displayed images | Masaya Tajima, Junichi Okayasu, Kiyoshi Takata, Katsuhiro Ishida, Takashi Fujisaki +4 more | 2003-10-21 |
| 6327404 | Wavelength filter | Masayoshi Horita, Yuichi Matsushima | 2001-12-04 |
| 6084997 | Coupled waveguide structure | Katsuyuki Utaka, Masayoshi Horita, Yuichi Matsushima | 2000-07-04 |
| 5859941 | Optical add/drop multiplexer device | Masayoshi Horita, Yuichi Matsushima | 1999-01-12 |
| 5556920 | Stretched polypropylene film | Manabu Kaminaka, Isao Masada, Junichi Fujii, Naoki Ueda | 1996-09-17 |
| 5430146 | Spirooxazine compounds | Takashi Tanaka, Seiji Okazaki | 1995-07-04 |
| 5246989 | Photochromic compound, composition and use thereof | Kayo Iwamoto, Takashi Tanaka, Satoshi Imura, Seiji Okazaki | 1993-09-21 |
| 5221455 | Bipolar membrane and method for its production | Fumio Hanada, Koki Hirayama, Nobuhiko Ohmura | 1993-06-22 |
| 4981269 | Vertical mill | Tadayuki Koga, Tatsuro Ishikawa, Keiichiro Miyazaki | 1991-01-01 |
| 4968305 | Radiation-shielding injector for a radio-pharmaceutical liquid composition | Jun Takahashi, Mitsuhisa Iinuma, Nobuo Ueda | 1990-11-06 |
| 4923088 | Radiation-shielding container | Jun Takahashi, Nobuo Ueda, Hiroaki Matsushima | 1990-05-08 |
| 4814238 | Magneto-optical recording medium | Nobutake Imamura, Chuichi Ota | 1989-03-21 |
| 4612068 | Magneto-optical recording medium | Nobutake Imamura | 1986-09-16 |
| 4559573 | Magneto-optical recording medium | Fujio Tanaka, Yasuyuki Nagao, Nobutake Imamura, Chuichi Ota | 1985-12-17 |
| 4477852 | Magneto-optical recording and reproducing system | Chuichi Ota, Nobutake Imamura | 1984-10-16 |
| 4417290 | Multi-layer magneto-optical recording medium | Nobutake Imamura, Chuichi Ota | 1983-11-22 |