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. 04, 2002
Filed:
Nov. 22, 1999
Mutsuo Nakazawa, Tokyo, JP;
Satoshi Takakuwa, Tokyo, JP;
Hiroshi Takahashi, Tokyo, JP;
Akira Yamanaka, Tokyo, JP;
Mitsuo Ueno, Tokyo, JP;
Katsuhiro Oyama, Tokyo, JP;
Taiyo Yuden Co., Ltd., Tokyo, JP;
Abstract
Processing along one circular path is performed by irradiating a laser beam to a ceramic green sheet attached on an outer peripheral surface of a rotating drum, and the processing path is changed by moving at least one of the rotating drum and a beam irradiated position through a predetermined distance in the direction of drum centerline each time the processing on one circular path is completed. If the laser beam is intermittently irradiated to the ceramic green sheet, a matrix of through holes or concave portions can be easily formed in the ceramic green sheet.