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:
Aug. 24, 2004
Filed:
Aug. 07, 2002
Applicant:
Inventors:
Satoru Yoshihara, Kusatsu, JP;
Takahiro Matano, Shiga, JP;
Akihiko Sakamoto, Shiga, JP;
Mitsuo Asai, Annaka, JP;
Hitoshi Uehara, Matsuida-machi, JP;
Assignee:
Nippon Electric Glass Co., Ltd., Shiga, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 1/706 ; B32B 2/520 ; G02B 6/00 ;
U.S. Cl.
CPC ...
B32B 1/706 ; B32B 2/520 ; G02B 6/00 ;
Abstract
An optical communication device substrate made of ceramic or glass-ceramic having a negative thermal expansion coefficient in the range of −10 to −120×10 /° C. in a temperature range of −40 to 100° C., treated with a solution containing at least one organic silicon compound selected from the group consisting of siloxane compounds and silazane compounds.