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:
Oct. 27, 2020
Filed:
Dec. 03, 2018
Applicant:
Fujifilm Corporation, Tokyo, JP;
Inventor:
Yuichi Kawanabe, Saitama, JP;
Assignee:
FUJIFILM Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 7/02 (2006.01); H02K 41/035 (2006.01); G02B 7/08 (2006.01); H02K 33/18 (2006.01); G02B 7/09 (2006.01); G02B 27/64 (2006.01); G03B 5/00 (2006.01); G03B 13/36 (2006.01); H02K 11/21 (2016.01);
U.S. Cl.
CPC ...
H02K 41/0356 (2013.01); G02B 7/08 (2013.01); G02B 7/09 (2013.01); G02B 27/646 (2013.01); G03B 5/00 (2013.01); G03B 13/36 (2013.01); H02K 33/18 (2013.01); G03B 2205/0007 (2013.01); G03B 2205/0069 (2013.01); H02K 11/21 (2016.01);
Abstract
A yoke of a voice coil motor includes an outer yoke as a magnet holding portion and an inner yoke as a coil insertion portion. A magnet is fixed to the surface of the outer yoke facing the inner yoke. The inner yoke is inserted into a coil. Openings are provided toward both end positions of the outer yoke from a middle position of movement positions of the coil. The openings are formed to pass through the outer yoke. The outer yoke can be made lighter while a necessary thrust is ensured.