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. 30, 1993
Filed:
Sep. 04, 1992
Applicant:
Inventors:
Katsutoshi Ando, Otsu, JP;
Katsuya Ogawa, Otsu, JP;
Eiichi Nishiura, Otsu, JP;
Yoshiharu Okumura, Otsu, JP;
Yoshikazu Ii, Otsu, JP;
Assignee:
Toray Industries, Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428 357 ; 428409 ; 428 3692 ; 206484 ; 206564 ; 2065211 ; 426107 ; 426234 ;
Abstract
A packaging material according to the present invention includes an electret material having a surface part mutually different polarized electric charges on a front surface and a rear surface thereof. A method of packaging according to the present invention includes covering at least a portion of an object using the packaging material.