Invention Grant
US07790344B2 Method of preparing powder and toner for electrophotography, and toner therefor
有权
制备电子照相用粉末和调色剂的方法及其调色剂
- Patent Title: Method of preparing powder and toner for electrophotography, and toner therefor
- Patent Title (中): 制备电子照相用粉末和调色剂的方法及其调色剂
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Application No.: US12111486Application Date: 2008-04-29
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Publication No.: US07790344B2Publication Date: 2010-09-07
- Inventor: Naotoshi Kinoshita , Tetsuya Tanaka , Masahiro Kawamoto
- Applicant: Naotoshi Kinoshita , Tetsuya Tanaka , Masahiro Kawamoto
- Applicant Address: JP Tokyo
- Assignee: Ricoh Company Limited
- Current Assignee: Ricoh Company Limited
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2007-125327 20070510; JP2008-049121 20080229
- Main IPC: G03G9/08
- IPC: G03G9/08 ; A62C5/02
Abstract:
A method of preparing a powder, including bombarding a spray gas to a liquid material through a spray nozzle to form an atomized liquid material; and solidifying the atomized liquid material, wherein 5 to 40% by weight of the spray gas are previously mixed with the liquid material to form a two-phase flow in a flow path of the spray nozzle, and 60 to 95% by weight of the spray gas is further discharged from a circumference of the flow path discharging the two-phase flow and bombarded thereto to uniformly atomize the liquid material.
Public/Granted literature
- US20080277490A1 METHOD OF PREPARING POWDER AND TONER FOR ELECTROPHOTOGRAPHY, AND TONER THEREFOR Public/Granted day:2008-11-13
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