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. 13, 2008
Filed:
Oct. 18, 2006
Hiroshi Ishikawa, Hitachi, JP;
Tomoyuki Hakuta, Hitachinaka, JP;
Makoto Horie, Hitachi, JP;
Hitoshi Suzuki, Hitachi, JP;
Hiroshi Ishikawa, Hitachi, JP;
Tomoyuki Hakuta, Hitachinaka, JP;
Makoto Horie, Hitachi, JP;
Hitoshi Suzuki, Hitachi, JP;
Hitachi Cable, Ltd., Tokyo, JP;
Abstract
In a multiple optical waveguide device, a transparent plate is bonded or joined on the top surface of a clad with which optical circuits and quartz glass substrates are covered, and optical reflection film is provided on the fringing area or the whole area of a joint surface of the transparent plate with the clad. Optical circuits or waveguide patterns can be recognized easily by visual inspection.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile