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, 2016
Filed:
Jun. 02, 2011
Masahiro Kimura, Otsu, JP;
Katsufumi Oto, Otsu, JP;
Kentarou Takagi, Otsu, JP;
Hiroho Hirozawa, Otsu, JP;
Masakazu Koiwa, Otsu, JP;
Yutaro Suzuki, Otsu, JP;
Masahiro Kimura, Otsu, JP;
Katsufumi Oto, Otsu, JP;
Kentarou Takagi, Otsu, JP;
Hiroho Hirozawa, Otsu, JP;
Masakazu Koiwa, Otsu, JP;
Yutaro Suzuki, Otsu, JP;
TORAY INDUSTRIES, INC., Tokyo, JP;
Abstract
To provide a separation membrane element that is able to increase the amount of permeate fluid per unit time and also able to improve stability performance, provided is a separation membrane element, comprising a separation membrane and a permeate spacer, wherein a separation functional layer is arranged on the surface of said separation membrane and a nonwoven fabric served as a substrate is arranged on the back surface of said separation membrane, wherein said permeate spacer is arranged on the back surface side of said substrate, wherein said permeate spacer is made of a different material from said separation membrane, and a projection area ratio of said permeate spacer to said separation membrane is 0.03 to 0.80.