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:
Mar. 24, 1989
Applicant:
Inventors:
Shinji Imatou, Atsugi, JP;
Hisato Shinohara, Sagamihara, JP;
Assignee:
Semiconductor Energy Laboratory Co., Ltd., Atsugi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K / ;
U.S. Cl.
CPC ...
21912168 ; 21912175 ; 21912182 ; 21912183 ;
Abstract
An improved laser patterning method and apparatus is described. A number of parallel grooves can be formed on a glass substrate coated with an ITO film by projecting flat laser pulses while the substrate is continuously sliding. By this process, the process time for producing a substrate for liquid crystal display can be reduced.