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:
May. 24, 2011
Filed:
Jul. 19, 2007
Applicants:
Tomoaki Shibata, Ibaraki, JP;
Masato Miyatake, Ibaraki, JP;
Atsushi Takahashi, Ibaraki, JP;
Masatoshi Yamaguchi, Ibaraki, JP;
Inventors:
Tomoaki Shibata, Ibaraki, JP;
Masato Miyatake, Ibaraki, JP;
Atsushi Takahashi, Ibaraki, JP;
Masatoshi Yamaguchi, Ibaraki, JP;
Assignee:
Hitachi Chemical Company, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/12 (2006.01); G02B 6/13 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention provides a hybrid optical/electrical circuit board in which an optical waveguide prepared by an exposing and developing step is combined with an electric circuit, wherein a printed wiring board containing an inorganic filler and a light absorber is used, and it has an optical waveguide core pattern having a high resolution and makes it possible to raise a density of optical wiring.