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:
Sep. 20, 2005
Filed:
Jan. 06, 2004
Yohichiro Miyaguchi, Tokyo, JP;
Nobuaki Kondoh, Tokyo, JP;
Takeshi Takemoto, Tokyo, JP;
Katsuo Sakai, Tokyo, JP;
Masanori Horike, Tokyo, JP;
Yohichiro Miyaguchi, Tokyo, JP;
Nobuaki Kondoh, Tokyo, JP;
Takeshi Takemoto, Tokyo, JP;
Katsuo Sakai, Tokyo, JP;
Masanori Horike, Tokyo, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An electrostatic transportation device is provided with a transporting base plate having a plurality of electrodes which generate an electric field which performs transporting and hopping of fine particles by an electrostatic force, wherein a width of each of the electrodes in a travelling direction of the fine particles is set to be in a range of 1 time to 20 times an average particle diameter of the fine particles, a pitch between the electrodes in the travelling direction of the fine particles is set to be in a range of 1 time to 20 times the average particle diameter of the fine particles, and driving waveforms of n phases or more (n is an integer of 3 or more) are applied to respective electrodes.