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.:
Date of Patent:
Mar. 29, 2011
Filed:
Dec. 30, 2008
Yoshiyuki Takano, Hachioji, JP;
Kyohta Koetsuka, Fujisawa, JP;
Noriyuki Kamiya, Yamato, JP;
Masayuki Ohsawa, Atsugi, JP;
Mieko Terashima, Isehara, JP;
Rei Suzuki, Atsugi, JP;
Hiroya Abe, Yokohama, JP;
Takashi Innami, Atsugi, JP;
Tadaaki Hattori, Hadano, JP;
Yoshiyuki Takano, Hachioji, JP;
Kyohta Koetsuka, Fujisawa, JP;
Noriyuki Kamiya, Yamato, JP;
Masayuki Ohsawa, Atsugi, JP;
Mieko Terashima, Isehara, JP;
Rei Suzuki, Atsugi, JP;
Hiroya Abe, Yokohama, JP;
Takashi Innami, Atsugi, JP;
Tadaaki Hattori, Hadano, JP;
Ricoh Company, Ltd., Tokyo, JP;
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.