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:
Oct. 26, 1999
Filed:
Aug. 27, 1996
Yoshiyuki Araki, Tokyo, JP;
Takeshi Maruyama, Tokyo, JP;
Asahi Kogaku Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
Disclosed is a laser scanning unit for emitting a laser beam which scans on a surface to be scanned within a predetermined scanning range. The laser scanning unit has a laser diode, and a laser diode controller for controlling the laser diode to emit the laser beam. The laser beam has an intensity corresponding to one of a predetermined graduation steps within a intensity range defined by a first intensity and a second intensity greater than the first intensity in accordance with an image data. The laser scanning unit is further provided with a controller which is capable of shifting the intensity range by changing the first and second intensities.