Issued Patents All Time
Showing 101–122 of 122 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5978111 | Light beam scanning apparatus | Shigeo Kayashima, Satoshi Maeda, Fumio Yamagishi, Hirokazu Aritake | 1999-11-02 |
| 5973837 | Light distributing apparatus for dividing the light from a light source into a plurality of lights | Shigeo Kayashima, Satoshi Maeda, Hirokazu Aritake | 1999-10-26 |
| 5956616 | Method of depositing thin films by plasma-enhanced chemical vapor deposition | Shigeru Mizuno, Manabu Tagami, Yoichiro Numasawa, Masahito Ishihara, Kiyoshi Nashimoto +1 more | 1999-09-21 |
| 5940195 | Light beam scanning apparatus | Fumio Yamagishi, Masato Nakashima | 1999-08-17 |
| 5900955 | Optical scanning system including two hologram elements | Hiroyasu Yoshikawa, Satoshi Maeda, Shigeo Kayashima, Fumio Yamagishi | 1999-05-04 |
| 5892597 | Holographic recording apparatus and holographic optical element | Shigetake Iwata, Satoshi Maeda, Shigeo Kayashima | 1999-04-06 |
| 5881043 | Optical pickup with a first detector to receive reflected data component signal and a second detector to receive reflected other component signal | Motomichi Shibano | 1999-03-09 |
| 5861989 | Light beam scanning apparatus | Shigeo Kayashima, Satoshi Maeda, Shigetake Iwata, Fumio Yamagishi, Masato Nakashima +2 more | 1999-01-19 |
| 5861964 | Method of manufacturing light beam scanning apparatus and fixed hologram plate and rotatable hologram and light distributing apparatus | Shigeo Kayashima, Satoshi Maeda, Shigetake Iwata, Fumio Yamagishi, Masato Nakashima +2 more | 1999-01-19 |
| 5786911 | Optical scanning apparatus utilizing linear polarized beams | Fumihiro Tawa, Junji Tomita | 1998-07-28 |
| 5754503 | Optical device with improved focused error detection and tracing error detection for optical disk drive | Satoshi Senba, Hiroyasu Yoshikawa, Fumihiro Tawa | 1998-05-19 |
| 5751682 | Compact size magneto-optical head with a hologram and a beam splitting means | — | 1998-05-12 |
| 5745265 | Optical element utilized for optical storage unit and optical device including the optical element | Kohichi Tezuka, Hiroyasu Yoshikawa | 1998-04-28 |
| 5708644 | Optical head for optical disk drive | — | 1998-01-13 |
| 5680253 | Light beam scanning apparatus comprising a first and second diffraction grating plate | Shigeo Kayashima, Satoshi Maeda, Shigetake Iwata, Fumio Yamagishi, Masato Nakashima +2 more | 1997-10-21 |
| 5676758 | CVD apparatus | Shigeru Mizuno, Kazuhito Watanabe, Nobuyuki Takahashi, Manabu Tagami, Takanori Yoshimura +1 more | 1997-10-14 |
| 5550655 | Laser beam optical scanner | Shigeo Kayashima, Satoshi Maeda, Hirokazu Aritake | 1996-08-27 |
| 5361149 | Optimized design method for holographic optical element and apparatus using such holographic optical element | Shigeo Kayashima | 1994-11-01 |
| 5295004 | Optical beam scanning apparatus | Fumio Yamagishi, Youji Houki, Shigetake Iwata, Shigeo Kayashima, Satoshi Maeda | 1994-03-15 |
| 4925262 | Method and apparatus for light beam scanning using a hologram | Fumio Yamagishi, Hiroyuki Ikeda | 1990-05-15 |
| 4904033 | Method for constructing holograms | Hiroyuki Ikeda, Fumio Yamagishi, Syunji Kitagawa, Kozo Yamazaki, Takefumi Inagaki | 1990-02-27 |
| 4810046 | Light beam scanning apparatus | Fumio Yamagishi, Hiroyuki Ikeda, Takefumi Inagaki | 1989-03-07 |