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:
May. 29, 2001
Filed:
Nov. 16, 1999
Masaharu Miyazaki, Niigata-ken, JP;
Isao Nakabayashi, Niigata-ken, JP;
Alps Electric Co., Ltd., Tokyo, JP;
Abstract
A sizing lapping apparatus includes a rotatably provided disk-shaped lap plate for supplying a lapping liquid thereto; at least one holding portion for holding a workpiece, the at least one holding portion being used to press the workpiece against the lap plate; a support shaft, provided in an erected state with respect to the lap plate, for supporting the at least one holding portion; an oscillating mechanism for causing the support shaft to undergo oscillatory rotational motion around an axis thereof; a base for supporting the support shaft so that the support shaft freely rotates around the axis thereof; and a base rocking mechanism for reciprocating the base in a diametrical direction of the lap plate or in a direction substantially parallel to the diametrical direction. The sizing lapping apparatus can carry out lapping operations with very high precision. This is made possible by partly adjusting the amount by which the workpiece is lapped, in accordance with the lapping state of the workpiece.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile