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:
Aug. 24, 1993
Filed:
Oct. 06, 1992
Noboru Fujino, Tokyo, JP;
Tohru Takamura, Tokyo, JP;
Kabushiki Kaisha Shinkawa, Tokyo, JP;
Abstract
In a marking method and apparatus which uses relief-plate printing, the distance between printing plate and surface of a workpiece is calculated based upon a rotational position of a vertical direction driving motor before the lowering of the printing plate and a rotational position of the vertical direction driving motor at the time the printing plate comes into contact with the workpiece and signal is accordingly generated by a detector. Thus, the distance between the printing plate and the surface of the workpiece can be easily calculated, and even if the workpieces are not the same in thickness, the amount the plate holder is lowered can be set easily and in a short period of time.