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. 04, 2014
Filed:
Jul. 12, 2012
Shunichi Morimoto, Ota, JP;
Noboru Tajiri, Gunma, JP;
Shingo Matsuzaki, Gunma, JP;
Mitsuhiko Uchida, Gunma, JP;
Shunichi Morimoto, Ota, JP;
Noboru Tajiri, Gunma, JP;
Shingo Matsuzaki, Gunma, JP;
Mitsuhiko Uchida, Gunma, JP;
SANYO Electric Co., Ltd., Moriguchi, JP;
Abstract
Provided is a compact-type objective lens (OBL) holder and the like provided with a bobbin making it possible to appropriately wind a coil therearound. An OBL holder of the present invention includes: a main surface portion provided with a fixing part on which an objective lens is fixed; and a first side-wall portion and a second side-wall portion provided with bobbins around which tracking coils for driving the OBL holder itself by using a magnetic effect are wound. Further, in the present invention, each bobbin includes a tubular portion and a through-hole penetrating the tubular portion in a thickness direction thereof. Thus, an adhesive can be supplied to the tracking coil through the through-hole.