The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 08, 2014
Filed:
Dec. 08, 2009
Yoshihito Takei, Kanagawa, JP;
Kazunori Ishikawa, Kanagawa, JP;
Takeaki Saiki, Kanagawa, JP;
The Yokohama Rubber Co., Ltd., Tokyo, JP;
Abstract
A silanol condensation catalyst including at least the zirconium metal salt expressed by Formula (I) below (wherein n is an integer from 1 to 3; each Ris a hydrocarbon group having from 1 to 16 carbons; and each Ris a hydrocarbon group having from 1 to 18 carbons.) A heat-curable silicone resin composition for sealing optical semiconductors includes 100 parts by mass of a polysiloxane containing two or more silanol groups in the molecule; from 0.1 to 2,000 parts by mass of a silane compound containing two or more alkoxy groups that are bonded to a silicon atom in the molecule; and a zirconium metal salt expressed by Formula (I). A sealed optical semiconductor is formed by sealing a LED chip by applying the heat-curable silicone resin composition to the LED chip, heating the LED chip, and curing the heat-curable silicone resin composition.