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.

Date of Patent:
Jul. 06, 2004

Filed:

Dec. 14, 2001
Applicant:
Inventors:

Kazuo Hiraguchi, Kanagawa, JP;

Hiroyuki Naito, Kanagawa, JP;

Katsuki Asano, Kanagawa, JP;

Shigeru Nishiyama, Kanagawa, JP;

Hideki Uchikura, Kanagawa, JP;

Akihiro Hashimoto, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 2/3087 ;
U.S. Cl.
CPC ...
G11B 2/3087 ;
Abstract

A receiving surface ( ) for use in the supersonic welding of the welding boss ( ) of an M cassette tape reel ( ) is composed of the lower surface of a ring portion ( ) which is formed so as to extend annularly along the base end of a hub central portion ( ) formed in the bottom surface ( ) of a lower reel ( ) and also which is projected downward (in FIG. ) by a given amount from the bottom surface ( ). That is, the receiving surface ( ) is situated slightly outside in the radial direction from directly below the welding boss ( ).


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