US Patent 7829254 Non-magnetic toner, image forming apparatus and process cartridge

Patent 7829254 was granted and assigned to RICOH COMPANY,LTD. on November, 2010 by the United States Patent and Trademark Office.

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Patent

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Current Assignee

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

78292540

Patent Inventor Names

Chiyoshi Nozaki0

Tsuyoshi Nozaki0

Mitsuyo Matsumoto0

Atsushi Yamamoto0

Katsunori Kurose0

Date of Patent

November 9, 2010

Patent Application Number

116873520

Date Filed

March 16, 2007

Patent Primary Examiner

‌

Mark A Chapman

Patent abstract

The present invention aims at providing non-magnetic toner which is excellent in fixing property and charge property and capable of inhibiting occurrence of scumming, as well as an image forming apparatus and a process cartridge using the non-magnetic toner.

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