Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5892597 | Holographic recording apparatus and holographic optical element | Satoshi Maeda, Shigeo Kayashima, Shinya Hasegawa | 1999-04-06 |
| 5861964 | Method of manufacturing light beam scanning apparatus and fixed hologram plate and rotatable hologram and light distributing apparatus | Shinya Hasegawa, Shigeo Kayashima, Satoshi Maeda, Fumio Yamagishi, Masato Nakashima +2 more | 1999-01-19 |
| 5861989 | Light beam scanning apparatus | Shinya Hasegawa, Shigeo Kayashima, Satoshi Maeda, Fumio Yamagishi, Masato Nakashima +2 more | 1999-01-19 |
| 5680253 | Light beam scanning apparatus comprising a first and second diffraction grating plate | Shinya Hasegawa, Shigeo Kayashima, Satoshi Maeda, Fumio Yamagishi, Masato Nakashima +2 more | 1997-10-21 |
| 5295004 | Optical beam scanning apparatus | Shinya Hasegawa, Fumio Yamagishi, Youji Houki, Shigeo Kayashima, Satoshi Maeda | 1994-03-15 |
| 4948213 | Beam scanner | Shin Hasegawa, Fumio Yamagishi, Hiroyuki Ikeda | 1990-08-14 |