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:
Jul. 12, 2011
Filed:
Oct. 02, 2007
Yasuko Maruo, Kanagawa, JP;
Takashi Miwa, Kanagawa, JP;
Jiro Nakamura, Kanagawa, JP;
Tatsuya Kunioka, Kanagawa, JP;
Yasuko Maruo, Kanagawa, JP;
Takashi Miwa, Kanagawa, JP;
Jiro Nakamura, Kanagawa, JP;
Tatsuya Kunioka, Kanagawa, JP;
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Abstract
An aqueous solution is formed by dissolving a dye made of alizarin and a humectant made of glycerin, and alkalized by dissolving a base (alkaline substance), thereby preparing a detector solution () in which the content of the humectant is about 20 wt %. An impregnated carrier () impregnated with the detector solution () is formed by dipping for 30 sec a sheet-like carrier () made of cellulose filter paper in the detector solution () so that the carrier () is impregnated with the detector solution (). The impregnated carrier () is pulled up from the detector solution (), and dried in dry nitrogen by evaporating a solvent such as water contained in the impregnated carrier (), thereby forming an ozone detecting device ().