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:
Nov. 05, 2019
Filed:
Apr. 07, 2015
Applicant:
Sumitomo Chemical Company, Limited, Tokyo, JP;
Inventor:
Junji Suzuki, Niihama, JP;
Assignee:
SUMITOMO CHEMICAL COMPANY, LIMITED, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 2/16 (2006.01); H01M 10/42 (2006.01);
U.S. Cl.
CPC ...
H01M 2/1686 (2013.01); H01M 2/166 (2013.01); H01M 2/1646 (2013.01); H01M 2/1653 (2013.01); H01M 10/4235 (2013.01); H01M 2200/10 (2013.01);
Abstract
A laminated porous film includes: a porous base material layer containing polyolefin as a main component; a filler layer containing inorganic particles as a main component; and a resin layer containing, as a main component, resin particles having a median diameter (D50) of greater than 1 μm.