Issued Patents All Time
Showing 1–25 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7008059 | Color combining optical system and image projection apparatus | Atsushi Oakuyama | 2006-03-07 |
| 6957895 | Reflection mirror and optical equipment using the same | Shumpei Tatsumi | 2005-10-25 |
| 6859315 | Polarization beam splitter and method of producing the same | — | 2005-02-22 |
| 6366332 | Display apparatus and process for production thereof | Hiroyuki Suzuki, Makoto Kameyama, Toshiaki Yoshikawa | 2002-04-02 |
| 6128057 | LCD with masking member having multiple portions having different characteristics | Hiroyuki Suzuki, Makoto Kameyama, Toshiaki Yoshikawa | 2000-10-03 |
| 5858450 | Film forming method and apparatus therefor | Hidehiko Fujimura, Makoto Kameyama, Akihiko Yokoyama | 1999-01-12 |
| 5715103 | Neutral density (ND) filter | Sayoko Amano, Susumu Abe | 1998-02-03 |
| 5648653 | Optical filter having alternately laminated thin layers provided on a light receiving surface of an image sensor | Junichi Sakamoto, Seitoku Tsukamoto, Motomu Fukasawa | 1997-07-15 |
| 5582879 | Cluster beam deposition method for manufacturing thin film | Hidehiko Fujimura, Makoto Kameyama, Akihiko Yokoyama | 1996-12-10 |
| 5578536 | Evaporating material for producing optical thin film | Makoto Kameyama, Noboru Sugahara, Junji Terada, Junichi Sakamoto | 1996-11-26 |
| 4920007 | Magneto-optical recording medium with 9:1-1:9 aluminum or silicon oxide and aluminum or silicon nitride mixture | Kazuoki Hongu, Kazuhiko Kikuchi | 1990-04-24 |
| 4777068 | Optical recording medium | Hiroshi Omata, Shigeharu Iijima, Eizo Sasamori, Katsuhiko Takano, Masaaki Matsushima +5 more | 1988-10-11 |
| 4741967 | Magnetic recording medium | Satoshi Yoshihara, Shigeharu Iijima, Katsuhiko Takano, Masaaki Matsushima, Hiroyoshi Kishi +2 more | 1988-05-03 |
| 4714308 | Ultraviolet reflecting mirror | Yasushi Taniguchi | 1987-12-22 |
| 4711821 | Opto-magnetic recording medium | Kazuhiko Kikuchi, Kazuoki Honguu | 1987-12-08 |
| 4707820 | Optical film and process for producing same | — | 1987-11-17 |
| 4695510 | Opto-magnetic recording medium | Kazuoki Honguu, Kazuhiko Kikuchi | 1987-09-22 |
| 4658388 | Optical recording medium which includes a corrosion resistant film of a mixture of a carbide and a nitride | Takahiko Ishiwatari, Hiroyoshi Kishi, Hisaaki Kawade, Masaaki Matsushima, Kazuoki Honguu | 1987-04-14 |
| 4637953 | Magnetooptical recording medium with laminated anti-reflection film | Susumo Ito | 1987-01-20 |
| 4579777 | Opto-magnetic recording medium | Kazuoki Honguu, Kazuhiko Kikuchi | 1986-04-01 |
| 4578322 | Recording medium | Susumu Ito, Masaaki Matsushima, Hiroyoshi Kishi, Eizo Sasamori, Satoshi Yoshihara +2 more | 1986-03-25 |
| 4531838 | Method and device for controlling the film thickness of evaporated film | — | 1985-07-30 |
| 4415233 | Achromatized beam splitter of low polarization | Susumu Itoh | 1983-11-15 |
| 4320936 | Far ultraviolet dielectric multilayer film | — | 1982-03-23 |
| 4261645 | Reflection preventive film having an aspherical layer | Osamu Kamiya | 1981-04-14 |