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.:

US 7116922 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 03, 2006

Filed:

May. 03, 2004
Applicants:

Norio Takahashi, Shizuoka-ken, JP;

Harumi Ishiyama, Numazu, JP;

Jun Hirabayashi, Numazu, JP;

Inventors:

Norio Takahashi, Shizuoka-ken, JP;

Harumi Ishiyama, Numazu, JP;

Jun Hirabayashi, Numazu, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

A charging apparatus includes a charging section supplied with an AC voltage and for electrically charging a member to be charged; a current measuring section for measuring a current flowing between the charging section and the member to be charged when the AC voltage is supplied to the charging section; and a particular current extraction section for extracting from the current a particular current having a particular frequency.


Find Patent Forward Citations

Takahashi, Norio. (2006). Charging apparatus (U.S. Patent No. 7116922). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7116922

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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