| Patent Number |
Title Of Patent |
Date Issued |
| 7064906 |
Optical pickup device with shielding to limit incident or emitted light |
June 20, 2006 |
| An optical pickup device and optical disc apparatus of the present invention include an optical element that prevents the incidence of light on unnecessary portions of the optical element so that stray light and noise are eliminated. The optical element include at least one substrate |
| 6898027 |
Optical element and manufacturing method for same |
May 24, 2005 |
| An optical element and manufacturing method of the present invention prevent the incidence of light on unnecessary portions of the optical element so that stray light and noise are eliminated. The optical element is configured from at least one substrate having a plurality of lens su |
| 6839188 |
Optical element and optical pickup |
January 4, 2005 |
| The system and methods of the present invention are directed to an optical pickup. The optical includes at least a light source, a lens for focusing and irradiating light from the light source on a recording medium, and an optical pickup element. The optical pickup element includes a len |
| 5283004 |
Method for the preparation of a silicone defoamer composition |
February 1, 1994 |
| A defoamer composition is obtained when a mixture of certain siloxane-containing components, a finely divided filler, a reaction catalyst and at least one compound having in each molecule at least 1 group expressed by --COR.sup.5, --COOR.sup.6 or --(OR.sup.7).sub.n -- is heated. R.su |
