Invention Grant
- Patent Title: Magnetic field generating member and manufacturing method thereof, magnetic particle support body, image development device, process cartridge and image forming apparatus
- Patent Title (中): 磁场产生元件及其制造方法，磁性颗粒支撑体，图像显影装置，处理盒和图像形成装置
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Application No.: US12346142Application Date: 2008-12-30
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Publication No.: US07917067B2Publication Date: 2011-03-29
- Inventor: Yoshiyuki Takano , Kyohta Koetsuka , Noriyuki Kamiya , Masayuki Ohsawa , Mieko Terashima , Rei Suzuki , Hiroya Abe , Takashi Innami , Tadaaki Hattori
- Applicant: Yoshiyuki Takano , Kyohta Koetsuka , Noriyuki Kamiya , Masayuki Ohsawa , Mieko Terashima , Rei Suzuki , Hiroya Abe , Takashi Innami , Tadaaki Hattori
- Applicant Address: JP Tokyo
- Assignee: Ricoh Company, Ltd.
- Current Assignee: Ricoh Company, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2008-000749 20080107
- Main IPC: G03G15/09
- IPC: G03G15/09
Abstract:
A magnetic field generating member with high stiffness and small size, an image development device, a process cartridge and an image forming apparatus including the magnetic field generating member as well as a manufacturing method of the magnetic field generating member are provided where the magnetic field generating member includes a main body, a groove provided in the main body, an interposition member configured to be fitted in the groove of the main body and including a concave portion and a magnetic member as a long magnetic compact fixed into the concave portion of the interposition member.
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