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:
Nov. 10, 1998
Filed:
Dec. 26, 1996
Applicant:
Inventors:
Norihisa Hoshika, Mishima, JP;
Takashi Hibi, Mishima, JP;
Takeo Shoji, Shizuoka-ken, JP;
Yasuyuki Ishii, Mishima, JP;
Hiroaki Ogata, Shizuoka-ken, JP;
Eiichiro Teshima, Odawara, JP;
Assignee:
CANON Kasbushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
399 26 ; 399 24 ; 399 25 ;
Abstract
A life informing device for a charge body includes a body to be charged, and a charging member for charging the charge body. The charging member is adapted to receive an oscillating voltage and to be in contact with the charge body during the charging operation. Also provided is an informing device for visually or acoustically informing the user whether the charge body reaches the end of the life time thereof, based on an accumulated time of the application time during which the oscillating voltage is applied.