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:
Feb. 07, 2006
Filed:
Apr. 29, 2004
Takashi Okuyama, Saitama, JP;
Takashi Okuyama, Saitama, JP;
PENTAX Corporation, Tokyo, JP;
Abstract
An apparatus for forming a pattern has a beam position detector, a fine-section scale corrector, a pulse data selector, and a control pulse signal generator. The beam position detector measures a position of the beam on a scanning-line. The fine-section scale corrector changes a scale of a series of fine-sections to a series of corrected fine-sections, in accordance with a scale-change rate, to change a scale of the pattern. The pulse data selector selects a set of pulse data, corresponding to a length of the corrected fine section that the beam passes, from a series of sets of pulse data. The control pulse signal generator successively generates a sequence of control pulse signals in accordance with the selected set of pulse data.