Issued Patents 1994
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5355219 | Gap control apparatus and method utilizing heterodyne signal phase difference detection | Kiyoshi Araki | 1994-10-11 |
| 5347140 | Resonant electron transfer device | Yoshihiko Hirai, Kiyoshi Morimoto, Yasuaki Terui, Atsuo Wada, Kenji Okada +1 more | 1994-09-13 |
| 5334466 | X-ray mask and process comprising convex-concave alignment mark with alignment reflection film | Kiyoshi Araki | 1994-08-02 |
| 5296719 | Quantum device and fabrication method thereof | Yoshihiko Hirai, Yasuaki Terui, Kiyoshi Morimoto, Atsuo Wada, Kenji Okada +4 more | 1994-03-22 |