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:
May. 16, 2000
Filed:
Dec. 30, 1998
Applicant:
Inventors:
Hiroshi Ozaki, Miyagi, JP;
Seizo Seki, Miyagi, JP;
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B65B / ;
U.S. Cl.
CPC ...
53412 ; 531336 ; 531337 ; 2063871 ; 493212 ;
Abstract
A wrapping method in which a wrapped product is wrapped by a sheath film and partly-overlapped portions of the sheath film are melt-bonded by heat to heat-seal the sheath film. When the user opens the sheath film, the user can tear the same with ease. A heat sealing area of the sheath film (1) is printed by a halftone printing portion (10) to uniformly reduce the whole bonding area, thereby decreasing a bonding strength.