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 7981687 B1

PDF
Full Text
Expired
Date of Patent:
Jul. 19, 2011

Filed:

Mar. 30, 2005
Applicants:

Norihiro Yamaguchi, Osaka, JP;

Kyoko Sano, Osaka, JP;

Hiroshi Inoue, Osaka, JP;

Inventors:

Norihiro Yamaguchi, Osaka, JP;

Kyoko Sano, Osaka, JP;

Hiroshi Inoue, Osaka, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 33/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

An object of the present invention is to provide a material for more easily and accurately detecting treatment status using gas exposure. The present invention relates to an ink composition for detecting an oxidizing gas, or the like, comprising at least one type of azo dye, methine dye, triarylmethane dye and thiazine dye.


Find Patent Forward Citations

Yamaguchi, Norihiro. (2011). Ink composition for sensing gas exposure and gas exposure indicator (U.S. Patent No. 7981687). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7981687

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

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