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. 24, 2006
Filed:
Mar. 22, 2004
Goro Kawasaki, Kawasaki, JP;
Tsuyoshi Matsumoto, Kawasaki, JP;
Hiroyasu Yoshikawa, Kawasaki, JP;
Nobuyuki Kanto, Kawasaki, JP;
Tohru Fujimaki, Kawasaki, JP;
Koichi Tezuka, Kawasaki, JP;
Goro Kawasaki, Kawasaki, JP;
Tsuyoshi Matsumoto, Kawasaki, JP;
Hiroyasu Yoshikawa, Kawasaki, JP;
Nobuyuki Kanto, Kawasaki, JP;
Tohru Fujimaki, Kawasaki, JP;
Koichi Tezuka, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A magneto-optical head including a lens forming a light spot on a storage disk, a magnetic field generating coil arranged between the lens and the disk to surround the optical center of the lens, and an annular heat sink arranged around the coil. The distance between the outer circumference of the coil and the inner circumference of the heat sink is 70–100 μm.