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.:

US 7589798 B1

PDF
Full Text
Expired
Date of Patent:
Sep. 15, 2009

Filed:

Sep. 05, 2002
Applicants:

Kazuhiko Takahata, Kyoto, JP;

Takao Hashimoto, Kyoto, JP;

Kazuhiro Nishikawa, Kyoto, JP;

Takeshi Asakura, Kyoto, JP;

Inventors:

Kazuhiko Takahata, Kyoto, JP;

Takao Hashimoto, Kyoto, JP;

Kazuhiro Nishikawa, Kyoto, JP;

Takeshi Asakura, Kyoto, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F 1/1335 (2006.01);
U.S. Cl.
CPC ...
Abstract

An upper electrode plate has a 0.15 to 0.8 mm thick optically isotropic heat-resistant transparent resin plate having a glass transition temperature characteristic of not less than 150° C. The heat-resistant transparent resin plate is laminated directly or indirectly on a quarter wave plate all over their surfaces.


Find Patent Forward Citations

Takahata, Kazuhiko. (2009). Touch panel having upper electrode plate including electrode, polarizing plate, quarter wave plate and heat-resistant transparent resin plate (U.S. Patent No. 7589798). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7589798

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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