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. 13, 1990
Filed:
Feb. 16, 1988
Applicant:
Inventors:
Horoshi Shimizu, Yokohama, JP;
Toshihiko Gotoh, Tokyo, JP;
Naohiro Ozaga, Yokohama, JP;
Takeshi Nomura, Yokohama, JP;
Kentaro Hanma, Yokohama, JP;
Mikio Shiraishi, Yokohama, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01D / ; G06K / ; B65H / ; B41J / ;
U.S. Cl.
CPC ...
346 / ; 235469 ; 235494 ; 242 57 ; 400208 ; 400249 ; 354217 ;
Abstract
A thermal transfer printer includes a mark disposed on an ink spool of an ink film cassette, reading device for reading the rotation of the ink spool by use of the mark, a calculation device for calculating the used quantity of ink film by use of the rotation data of the spool, and a display portion for displaying the remaining quantity of ink film obtained by the calculation device.