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. 07, 2024
Filed:
May. 01, 2020
Figaro Engineering Inc., Minoo, JP;
New Cosmos Electric Co., Ltd., Osaka, JP;
University Public Corporation Osaka, Osaka, JP;
Masato Takeuchi, Sakai, JP;
Junpei Furuno, Sakai, JP;
Kenta Fukui, Sakai, JP;
Kenichi Yoshioka, Minoo, JP;
Tatsuya Tanihira, Minoo, JP;
Masakazu Sai, Minoo, JP;
Takafumi Taniguchi, Osaka, JP;
Hirokazu Mitsuhashi, Osaka, JP;
FIGARO ENGINEERING INC., Osaka, JP;
NEW COSMOS ELECTRIC CO., LTD., Osaka, JP;
UNIVERSITY PUBLIC CORPORATION OSAKA, Osaka, JP;
Abstract
Siloxane compounds are removed from the atmospheres by silica supporting an organic sulfonic acid compound. The silica with the organic sulfonic acid compound has a specific surface area down to 500 m/g and up to 750 m/g and a pore volume down to 0.8 m/g and up to 1.2 m/g, both measured by nitrogen gas adsorption method and has a pore diameter down to 4 nm and up to 8 nm, at the peak of differential pore volume measured by nitrogen gas adsorption method. The durability of gas sensing element against siloxanes is improved.