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:
Feb. 15, 2011
Filed:
Jan. 25, 2007
Applicants:
Hiroyuki Toyoda, Hitachinaka, JP;
Junichi Senga, Yokohama, JP;
Takayuki Fujimoto, Tsuchiura, JP;
Seiichi Katou, Tsuchiura, JP;
Hitoshi Matsushima, Ryugasaki, JP;
Inventors:
Hiroyuki Toyoda, Hitachinaka, JP;
Junichi Senga, Yokohama, JP;
Takayuki Fujimoto, Tsuchiura, JP;
Seiichi Katou, Tsuchiura, JP;
Hitoshi Matsushima, Ryugasaki, JP;
Assignee:
Hitachi Media Electronics Co., Ltd., Iwate, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B 33/14 (2006.01); G11B 17/00 (2006.01); G11B 21/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
An optical pickup devicecomprising a laser diode, a photo detector, a housinghaving an optical system for guiding light from the laser diodeto an optical disk and guiding light reflected on the optical disk to the photo detector, a wiringto supply current to the laser diode, and a metallic coverprovided outside of the housing, wherein