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:
Dec. 03, 2002
Filed:
Oct. 12, 2000
Applicant:
Inventors:
Masayuki Yamada, Ibaraki, JP;
Shigeo Aoyama, Ibaraki, JP;
Assignee:
Hitachi Maxell, Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/36 ;
U.S. Cl.
CPC ...
H01M 4/36 ;
Abstract
A copper-boron double oxide of the formula: Cu M B O in which M is a metal atom, and j, k, m and n are each a positive integer, a copper-molybdenum double oxide of the formula: Cu Mo O in which x, y and z are each a positive integer, or a copper double oxide of the formula: CuM′ O in which M′ is at least one element selected from the group consisting of B, Al, Ga, Mn, Co, Ni and a rare earth element is useful as a positive electrode-active material of a lithium secondary cell.