Patents by Inventor Toshiroh Higuchi

Toshiroh Higuchi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Classifier, developer, and image forming apparatus
    Patent number: 7062204
    Abstract: A classifier having a simple constitution for classifying powder with a high accuracy is provided. The classifier is provided with a transfer board having a plurality of electrodes for generating electric fields for transferring and hopping the powder by an electrostatic force. The classifier is further provided with an opposite roller generating an electric field for transporting and attaching the powder (toner) transferred and hopped on the transfer board to the opposite roller, which is opposite to the transfer board.
    Type: Grant
    Filed: March 11, 2005
    Date of Patent: June 13, 2006
    Assignee: Ricoh Company, Ltd.
    Inventors: Yohichiro Miyaguchi, Masanori Horike, Takeshi Takemoto, Yutaka Ebi, Toshiroh Higuchi
  • Classifier, developer, and image forming apparatus
    Patent number: 6941098
    Abstract: A classifier having a simple constitution for classifying powder with a high accuracy is provided. The classifier is provided with a transfer board having a plurality of electrodes for generating electric fields for transferring and hopping the powder by an electrostatic force. The classifier is further provided with an opposite roller generating an electric field for transporting and attaching the powder (toner) transferred and hopped on the transfer board to the opposite roller, which is opposite to the transfer board.
    Type: Grant
    Filed: March 12, 2003
    Date of Patent: September 6, 2005
    Assignee: Ricoh Company, LTD
    Inventors: Yohichiro Miyaguchi, Masanori Horike, Takeshi Takemoto, Yutaka Ebi, Toshiroh Higuchi
  • Classifier, developer, and image forming apparatus
    Publication number: 20050152717
    Abstract: A classifier having a simple constitution for classifying powder with a high accuracy is provided. The classifier is provided with a transfer board having a plurality of electrodes for generating electric fields for transferring and hopping the powder by an electrostatic force. The classifier is further provided with an opposite roller generating an electric field for transporting and attaching the powder (toner) transferred and hopped on the transfer board to the opposite roller, which is opposite to the transfer board.
    Type: Application
    Filed: March 11, 2005
    Publication date: July 14, 2005
    Inventors: Yohichiro Miyaguchi, Masanori Horike, Takeshi Takemoto, Yutaka Ebi, Toshiroh Higuchi
  • Classifier, developer, and image forming apparatus
    Publication number: 20030210928
    Abstract: A classifier having a simple constitution for classifying powder with a high accuracy is provided. The classifier is provided with a transfer board having a plurality of electrodes for generating electric fields for transferring and hopping the powder by an electrostatic force. The classifier is further provided with an opposite roller generating an electric field for transporting and attaching the powder (toner) transferred and hopped on the transfer board to the opposite roller, which is opposite to the transfer board.
    Type: Application
    Filed: March 12, 2003
    Publication date: November 13, 2003
    Inventors: Yohichiro Miyaguchi, Masanori Horike, Takeshi Takemoto, Yutaka Ebi, Toshiroh Higuchi