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:
May. 07, 2002
Filed:
Mar. 28, 2000
Applicant:
Inventors:
Masatoshi Nagayama, Osaka, JP;
Shinji Arimoto, Osaka, JP;
Koichi Numata, Hiroshima, JP;
Tsuneyoshi Kamada, Hiroshima, JP;
Assignee:
Mitsui Mining and Smelting Company, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/50 ;
U.S. Cl.
CPC ...
H01M 4/50 ;
Abstract
Electrolytic manganese dioxide is pulverized. The manganese dioxide power is neutralized with sodium hydroxide or sodium carbonate to a pH of 2 or higher. The neutralized electrolytic manganese dioxide powder is mixed with a lithium raw material and the mixture is fired.