Issued Patents 1994
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5335256 | Semiconductor substrate including a single or multi-layer film having different densities in the thickness direction | Tomoko Maruyama | 1994-08-02 |
| 5333167 | Mask structure for x-ray exposure and x-ray exposure device and method using it | Yasuaki Fukuda | 1994-07-26 |
| 5310603 | Multi-layer reflection mirror for soft X-ray to vacuum ultraviolet ray | Yasuaki Fukuda, Yutaka Watanabe, Shigetaro Ogura | 1994-05-10 |
| 5295020 | Lens assembling structure | Ryota Ogawa | 1994-03-15 |
| 5293270 | Reading lens system | Hiroyuki Hirano | 1994-03-08 |
| 5283599 | Apparatus for combining and projecting images | Yasuyuki Tejima, Yasunori Arai, Nobutaka Minefuji | 1994-02-01 |
| 5278698 | Magnifying projecting lens | Nobutaka Minefuji, Yasunori Arai, Kazushi Yoshida | 1994-01-11 |