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. 07, 2005
Filed:
Jul. 18, 2002
Haruo Wakayama, Osaka, JP;
Toshiyuki Sakai, Osaka, JP;
Keiko Hayashi, Osaka, JP;
Yoshitaka Nishio, Osaka, JP;
Junichi Matsumoto, Osaka, JP;
Haruo Wakayama, Osaka, JP;
Toshiyuki Sakai, Osaka, JP;
Keiko Hayashi, Osaka, JP;
Yoshitaka Nishio, Osaka, JP;
Junichi Matsumoto, Osaka, JP;
Mitsuboshi Diamond Industrial Co., Ltd., Osaka, JP;
Abstract
A scribing headof this invention raises and lowers a scribing cutter by rotation of a servomotorAs a scribe pressure, a rotational torque of the servomotoris transmitted to the scribing cutter. To form a scribe line across another scribe line which is formed earlier, the scribe pressure is raised temporarily when the scribing head passes the scribe line which is formed earlier. The rotational torque of the servomotoris controlled at any of preset limits while the position of a cutterof the scribing head shifts on the brittle substrate. The servomotoris driven under position-control mode.