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:
Mar. 06, 2001
Filed:
Oct. 24, 1997
Koji Suto, Kawasaki, JP;
Kazuo Yokoi, Kawasaki, JP;
Yoshiaki Yanagida, Kawasaki, JP;
Motoichi Watanuki, Kawasaki, JP;
Tomokazu Sugiyama, Kawasaki, JP;
Fujitsu Limted, Kawasaki, JP;
Abstract
The present invention relates to an automatic lapping method for lapping a work piece and a lapping apparatus using the same. The lapping apparatus laps a work piece by moving the mounting base,relatively to a lapping plate,. On a coarse processing step, the lapping plate,is controlled with high speed as detecting a remaining amount for lapping the work piece. Then, on a fine processing step, said lapping plate,is controlled with low speed by detecting that the remaining amount h for lapping said work piece has reached to a predetermined amount H,. Thereby, it becomes possible to continuously execute the coarse processing and the fine processing in one lapping apparatus.