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. 03, 2000
Filed:
Mar. 24, 1998
Applicant:
Inventors:
Kiyoshi Yokogawa, Kure, JP;
Seiji Fukuyama, Kure, JP;
Bai An, Kure, JP;
Masamichi Yoshimura, Nagoya, JP;
Isao Mochida, Fukuoka, JP;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01B / ;
U.S. Cl.
CPC ...
252502 ; 423414 ; 4234 / ; 423448 ; 423460 ; 428367 ; 428408 ;
Abstract
A novel carbonaceous material having a unique periodical annular electronic surface structure as examined by means of a scanning tunnel microscopy can be obtained by the method comprising the steps of: (a) forming a layer of a carbonaceous material having a curved configuration by the method of vapor-phase deposition of a carbonaceous material; and (b) subjecting the vapor-phase deposited layer of the carbonaceous material to a heat treatment at a temperature of 1500 K or higher in a non-oxidizing atmosphere. The novel carbonaceous material is useful for carbon electrodes of various batteries.