Issued Patents All Time
Showing 26–42 of 42 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7211773 | Conveyance and forming apparatus | Takemi Miyazaki | 2007-05-01 |
| 7179536 | Optical element having a low surface roughness, an optical pickup device including the optical element, and a die for making the optical element | Makoto Banno | 2007-02-20 |
| 7178433 | Processing apparatus, processing method and diamond tool | Hiroyuki Matsuda, Kazuhiro Wada | 2007-02-20 |
| 7168358 | Static pressure sliding block | Hiroyuki Matsuda | 2007-01-30 |
| 7108812 | Forming die unit adjusting method and forming apparatus | — | 2006-09-19 |
| 7023765 | Optical element, optical pick-up device and manufacturing method of the optical element | Hiroshi Nagoya | 2006-04-04 |
| 6832495 | Molding die | — | 2004-12-21 |
| 6791764 | Optical element, metal die, and cutting tool | — | 2004-09-14 |
| 6771435 | Optical element, metal die, and cutting tool | — | 2004-08-03 |
| 6766999 | Optical element molding die and optical element | — | 2004-07-27 |
| 6738202 | Optical element, metal die, and cutting tool | — | 2004-05-18 |
| 6285513 | Optical element | Toshio Tsuji | 2001-09-04 |
| 5305088 | Laser interferometric measuring machine | — | 1994-04-19 |
| 5305089 | Laser interferometer including an optical unit having a corner cube prism, a parallelogram prism, a triangle prism, and a polarizing plate intergrated to form one body | — | 1994-04-19 |
| 5291315 | Method of obtaining hologram and an exposure apparatus | — | 1994-03-01 |
| 5287166 | Displacement meter with stared displacement values | — | 1994-02-15 |
| 5172186 | Laser interferometry length measuring an apparatus employing a beam slitter | — | 1992-12-15 |