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:
Jul. 13, 2010
Filed:
Feb. 17, 2009
Nobuyasu Makino, Numazu, JP;
Tetsuya Tanaka, Suntoh-Gun, JP;
Satoru Miyamoto, Mishima, JP;
Shinji Hirata, Suntoh-Gun, JP;
Mutsumi Takahashi, Numazu, JP;
Nobuyasu Makino, Numazu, JP;
Tetsuya Tanaka, Suntoh-Gun, JP;
Satoru Miyamoto, Mishima, JP;
Shinji Hirata, Suntoh-Gun, JP;
Mutsumi Takahashi, Numazu, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A pulverization/classification apparatus including a cylindrical vessel having an inner wall, on a surface of which a layer including a release agent is located; a pulverizer configured to pulverize a material such as toner raw materials in the cylindrical vessel using a compressed air to prepare a particulate material; and a classifier configured to classify the particulate toner material to prepare a powder of the material. Alternatively, the inner wall of the cylindrical vessel has a circumferentially projected portion. A method for manufacturing a powder such as toners using the pulverization/classification apparatus is also provided.