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:
Oct. 18, 1988
Filed:
Jan. 23, 1987
Applicant:
Inventors:
Yasuhiro Nishino, Fukui, JP;
Katsuaki Kuze, Shiga, JP;
Yujiro Matsuyama, Shiga, JP;
Osamu Makimura, Gifu, JP;
Assignees:
Toyobo Co., Ltd., Osaka, JP;
Nippon Magphane Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ; D06N / ;
U.S. Cl.
CPC ...
428143 ; 428323 ; 428333 ; 428409 ; 428480 ; 428900 ; 523220 ; 528286 ;
Abstract
An oriented polyester film having at least one surface being roughened by containing inactive particles and three-dimensional surface roughness exponents of the said roughened surface are within ranges simultaneously satisfying the following relationships (I) to (III), while the number of coarse projections is in excess of the fourth grade: