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:
Jun. 28, 1994
Filed:
Nov. 23, 1992
Frederick W Gerriets, Virginia Beach, VA (US);
John E LaRegina, Virginia Beach, VA (US);
Timothy E Groff, Norfolk, VA (US);
Mitsubishi Kasei America, Inc., White Plains, NY (US);
Abstract
Forming an area of good electrical contact on a photoconductor drum, having a non-conductive layer, by means of a laser beam leads to a reduction in the loss rate in the manufacturing process. The area of electrical contact is introduced without the use of caustic or corrosive chemicals and without the production of waste products, such as metal powder or spend chemicals. The drums produced by the process are free of scratches which arise from other methods, free of chemical residues in the area of electrical contact, and have an area of electrical contact which is even and smooth.