Ohkubo; Yukitoshi
Patent Applications and Registrations
Patent applications and USPTO patent grants for Ohkubo; Yukitoshi.The latest application filed is for "roll stamper and apparatus for forming a substrate for information recording medium".
- Ohkubo; Yukitoshi - Yokohama JP
- Ohkubo; Yukitoshi - Shimomaruko Ohta-ku JP
| Patent | Date |
|---|---|
| Roll stamper and apparatus for forming a substrate for information recording medium Grant 5,308,235 - Kamitakahara , et al. May 3, 1 | 1994-05-03 |
| Optical modulation element having two-dimensional phase type diffraction grating Grant 5,148,302 - Nagano , et al. September 15, 1 | 1992-09-15 |
| Process for producing optical recording medium Grant 5,137,661 - Kanome , et al. August 11, 1 | 1992-08-11 |
| Liquid crystal optical modulator Grant 4,878,742 - Ohkubo , et al. November 7, 1 | 1989-11-07 |
| Display element and observation apparatus having the same Grant 4,856,869 - Sakata , et al. August 15, 1 | 1989-08-15 |
| Optical modulation device Grant 4,850,681 - Yamanobe , et al. July 25, 1 | 1989-07-25 |
| Liquid crystal device for color display Grant 4,714,636 - Yokono , et al. December 22, 1 | 1987-12-22 |
| Image forming apparatus Grant 4,671,642 - Ohkubo , et al. June 9, 1 | 1987-06-09 |
| Image forming method and device for same Grant 4,448,867 - Ohkubo , et al. May 15, 1 | 1984-05-15 |
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