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. 02, 2004
Filed:
Aug. 04, 2000
Applicant:
Inventors:
Yoshinori Ojima, Kamakura, JP;
Toshiharu Nakazawa, Chigasaki, JP;
Shinichi Sekiguchi, Yokohama, JP;
Nobuharu Noji, Zushi, JP;
Assignee:
Ebara Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H02K 1/700 ;
U.S. Cl.
CPC ...
H02K 1/700 ;
Abstract
A gas transfer machine for use as a vacuum pump, for example, has a pump rotor mounted on a rotatable shaft for transferring a gas, and a reluctance-type motor for rotating the rotatable shaft. The reluctance-type motor has a stator, a motor rotor surrounded by the stator, and a shield member isolating the stator from the motor rotor. The motor rotor is directly coupled to the rotatable shaft and has a plurality of magnetic salient poles.
Ojima, Yoshinori. (2004). Gas transfer machine (U.S. Patent No. 6700273). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6700273
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile