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. 22, 2005
Filed:
Feb. 13, 2002
Mitsuhiro Shoda, Odawara, JP;
Hiroshi Tani, Ninomiya, JP;
Hiroyuki Matsumoto, Chigasaki, JP;
Takayuki Nakakawaji, Kitaibaraki, JP;
Mitsuhiro Shoda, Odawara, JP;
Hiroshi Tani, Ninomiya, JP;
Hiroyuki Matsumoto, Chigasaki, JP;
Takayuki Nakakawaji, Kitaibaraki, JP;
Hitachi Global Storage Technologies Japan, Ltd., Kanagawa-ken, JP;
Abstract
A low cost and highly reliable lubricating technique is realized by using a lubricant having an average molecular weight in the range of 900 to 2500. The lubricant is efficiently supplied to inner portions of a magnetic disk apparatus utilizing heat generated during operation of the apparatus. The method of assembling the apparatus is not affected since it is not necessary to provide a separate lubricant supply mechanism.