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:
Jan. 08, 2013
Filed:
May. 09, 2008
Masato Doura, Osaka, JP;
Junji Hirose, Osaka, JP;
Kenji Nakamura, Osaka, JP;
Takeshi Fukuda, Osaka, JP;
Akinori Sato, Osaka, JP;
Masato Doura, Osaka, JP;
Junji Hirose, Osaka, JP;
Kenji Nakamura, Osaka, JP;
Takeshi Fukuda, Osaka, JP;
Akinori Sato, Osaka, JP;
Toyo Tire & Rubber Co., Ltd., Osaka-shi, JP;
Abstract
A method for manufacturing a polishing pad prevents slurry leaks and provides a pad that can be used to provide high optical detection accuracy. The method for manufacturing a polishing pad includes forming a groove for injecting a light-transmitting region forming material on the back surface of a polishing layer; injecting the light-transmitting region forming material into the groove and curing the material to form a light-transmitting region; and buffing the front surface of the polishing layer to expose the light-transmitting region on the front surface.