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.

Date of Patent:
Aug. 15, 2006

Filed:

Oct. 20, 2003
Applicant:

Masashi Okubo, Nagano, JP;

Inventor:

Masashi Okubo, Nagano, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F 3/00 (2006.01); H01F 7/08 (2006.01);
U.S. Cl.
CPC ...
Abstract

A solenoid that has a small body and increased propulsion in a controlled range is provided. The solenoid is characterized by being provided with a bearingformed of a nonmagnetic body, n (where n is a positive integer of zero or above) groovesand n+1 tooth partsthat are adjacent to the groovesand function as magnetic poles being provided in a facing surfaceof a first upper yoke, m (where m is a positive integer of zero or above) groovesand m+1 tooth partsthat are adjacent to the groovesand function as magnetic poles being provided in a facing surfaceof a second upper yoke, n+1 groovesand n+1 tooth partsthat are adjacent to the groovesand function as magnetic poles being provided in a surfaceof the sliderthat faces the first upper yoke, and m groovesand m tooth partsthat are adjacent to the groovesand function as magnetic poles being provided in a surfaceof the sliderthat faces the second upper yoke


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