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:
Feb. 27, 2007
Filed:
Aug. 12, 2005
Yasuhiro Sudou, Sodegaura, JP;
Hironori Suzuki, Tokyo, JP;
Satoru Nagami, Tokyo, JP;
Kazuo Ikuta, Handa, JP;
Takahiko Yamamoto, Obu, JP;
Shun Okijima, Anjo, JP;
Satoru Suzuki, Nagoya, JP;
Hiroshi Ueshima, Anjo, JP;
Yasuhiro Sudou, Sodegaura, JP;
Hironori Suzuki, Tokyo, JP;
Satoru Nagami, Tokyo, JP;
Kazuo Ikuta, Handa, JP;
Takahiko Yamamoto, Obu, JP;
Shun Okijima, Anjo, JP;
Satoru Suzuki, Nagoya, JP;
Hiroshi Ueshima, Anjo, JP;
Mitsui Chemicals, Inc., Tokyo, JP;
Denso Corporation, Aichi, JP;
Abstract
A battery separator of the invention is obtained by press forming a meltblown nonwoven fabric comprising 4-methyl-1-pentene polymer or a 4-methyl-1-pentene/α-olefin copolymer, the battery separator having an average fiber diameter of 0.8 to 5 μm, a basis weight of 9 to 30 g/m, a porosity of 30 to 60%, and a load at 5% elongation in the MD direction (longitudinal direction) of not less than 1.2 (kg/5 cm width). A lithium ion secondary battery of the invention includes the battery separator.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile