Patent · US Active

Magnet roller and method for the same, magnetic particle-support member, development device, process cartridge, and image forming apparatus

US8023867B2 · kind B2 · utility

4Cited by

3References

17Claims

0Family size

Assignee

RICOH COMPANY, LTD. · JP

Inventors

Yoshiyuki Takano · Hachioji, JP
Tsuyoshi Imamura · Sagamihara, JP
Kyohta Koetsuka · Fujisawa, JP
Noriyuki Kamiya · Yokohama, JP
Masayuki Ohsawa · Atsugi, JP
Hiroya Abe · Yokohama, JP
Takashi Innami · Atsugi, JP
Tadaaki Hattori · Hadano, JP
Mieko Terashima · Zama, JP

Key dates

Filing date	Feb 29, 2008
Grant date	Sep 20, 2011
Priority date	—
Expiry date	Nov 17, 2029

Classification

Technology area (CPC G)Physics
CPC primaryG03G15/0928
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A magnet roller includes a cylindrical roller body including a side surface in which a groove is formed, a magnet body which is disposed in the groove, and a magnetic metal member which is attached to a surface of the magnet body, which is remote from an opening of the groove.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.