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:
Jul. 02, 2002
Filed:
Feb. 28, 2000
Applicant:
Inventors:
Satoru Anada, Saitama-ken, JP;
Hideki Kinoshita, Saitama-ken, JP;
Jun Togashi, Saitama-ken, JP;
Takashi Ota, Saitama-ken, JP;
Kiyoshi Morikawa, Saitama-ken, JP;
Assignee:
Pioneer Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B 5/55 ; G11B 2/108 ;
U.S. Cl.
CPC ...
G11B 5/55 ; G11B 2/108 ;
Abstract
A feeding screw is rotatably mounted on a chassis of a recording medium reproducing device. A half nut having a semicircular sectional shape is mounted on an optical pickup carriage. The half nut has at least one thread which comprises a thick central portion to be engaged with the feeding screw and thin both side portions not to be engaged with the feeding screw. The optical pickup carriage is fed by a rotation of the feeding screw, being engaged with the half nut.