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:
Apr. 20, 2010

Filed:

Sep. 25, 2006
Applicants:

Kiyotaka Dochi, Kanagawa, JP;

Hitoshi Kamoda, Kanagawa, JP;

Inventors:

Kiyotaka Dochi, Kanagawa, JP;

Hitoshi Kamoda, Kanagawa, JP;

Assignee:

Sony Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 35/28 (2006.01);
U.S. Cl.
CPC ...
Abstract

An ink ribbon cartridge includes spools each including a ratchet gear in one end portion. A cartridge body includes integrally formed resilient engagement pieces each including a ratchet portion that engages and disengages the ratchet gear of the respective spool and a compressed portion that is compressed by a compressing portion of a thermal transfer printer apparatus. When the ink ribbon cartridge is installed in the thermal transfer printer apparatus, the resilient engagement pieces behave such that the compressed portions are compressed by the compressing portions of the thermal transfer printer apparatus. Thereby, engagement between the ratchet gears of the respective spools and the ratchet portions is released, and the spools become rotatable in the cartridge body.


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