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:
Dec. 02, 2003
Filed:
Jun. 28, 2002
Toshimitsu Kawasaki, Yonezawa, JP;
NEC Corporation, Tokyo, JP;
Abstract
A cartridge gear having an annular shape around its rotational center and secured to a reel of a tape cartridge loaded in a drive device has a tapered shape having a first inclination angle which is lower in height as the tooth tops thereof approach the innermost peripheral edge. A drive gear having an annular shape around its rotational center and connected to a reel motor of the drive device has a tapered shape having a second inclination angle which is lower in height as the tooth tops thereof approach the outermost peripheral edge, the second angle being smaller than the first angle. The tapered shape of the drive gear is formed in an area which extends outwardly from the radially-innermost position of the drive gear where lock pads abut against the drive gear when the drive gear and the cartridge gear are in proper engagement with each other.