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. 20, 2002
Filed:
Mar. 27, 1997
Hiroyoshi Sago, Kanagawa, JP;
Shigemi Fujiyama, Kanagawa, JP;
Futoshi Shimai, Kanagawa, JP;
Akira Uehara, Kanagawa, JP;
Tokyo Ohka Kogyo Co., Ltd., Kanagawa, JP;
Abstract
A slit nozzle is positioned above an end of a glass substrate placed in an inner cup, and, while a coating solution is being ejected with reduced surface tension from the slit nozzle toward the glass substrate, the slit nozzle is translated parallel to the surface of the glass substrate to roughly coat the coating solution on substantially the entire surface of the glass substrate. Thereafter, the upper opening of the inner cup and the upper opening of an outer cup around the inner cup are closed by respective lids, and then the inner cup is rotated to rotate the glass substrate for thereby spreading the coated solution uniformly over the surface of the glass substrate under centrifugal forces.