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:
Apr. 20, 1993
Filed:
Feb. 14, 1992
Applicant:
Inventor:
Moriaki Akazawa, Itami, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23C / ;
U.S. Cl.
CPC ...
20429815 ; 20429823 ; 156345 ; 118503 ;
Abstract
A vacuum-treatment apparatus employs a magnetically driven clamp which uses repulsive and attractive forces between magnets. The clamp mechanism is simplified, maintenance of the apparatus can be easily performed, and the surfaces which mechanically contact one another are decreased as much as possible so that a vacuum-treatment apparatus which generates less dust is obtained.
Akazawa, Moriaki. (1993). Vacuum-treatment apparatus (U.S. Patent No. 5203981). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5203981
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile