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:
Jan. 08, 2019
Filed:
Jun. 10, 2016
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Taichi Nakamura, Osaka, JP;
Takayoshi Yamaguchi, Osaka, JP;
Hiroto Sumida, Nara, JP;
Takahiro Kurokawa, Tokyo, JP;
Takatoshi Mitsushima, Nara, JP;
Abstract
A laminated nonwoven fabric (NF) includes a first NF containing first fibers and a second NF containing second fibers and laminated on the first NF, and has a cut-off edge at an end thereof. An average diameter of the first fibers is larger than that of the second fibers not more than 3 μm. 50% by mass to 70% by mass, inclusive, of the second fibers satisfy x≥y, and 5% by mass to 30% by mass, inclusive, thereof satisfy x<y/2. 'x' is a vector component in a direction (X axis direction) of the cut-off edge, and 'y' is a vector component in Y axis direction perpendicular to X axis and parallel to a principal surface of the laminated NF. When the second NF is viewed from Z axis direction perpendicular to X and Y axes, at least some of the second fibers satisfying x<y/2 overlap the second fibers satisfying x≥y.