Patents by Inventor Chisa Kato

Chisa Kato 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).

  • Publication number: 20210087007
    Abstract: A sheet feeding device includes a roller pair being mutually non-separable; and a roller pair being mutually separable. The sheet feeding device temporarily stops a sheet in a registration position of the non-separable roller pair and then resumes feeding the sheet. The sheet feeding device feeds sheets such that a following sheet reaches the registration position from the separable roller pair after completion of ejection of a preceding sheet.
    Type: Application
    Filed: September 15, 2020
    Publication date: March 25, 2021
    Applicant: Ricoh Company, Ltd.
    Inventors: Ryohei Morisaki, Shigefumi Soga, Chisa Kato
  • Patent number: 8336874
    Abstract: A solenoid device including a plunger, a solenoid configured to cause a displacement of the plunger, and a driving control unit configured to control driving of the solenoid. The driving control unit supplies current pulses to the solenoid and changes a pulse interval of the current pulses.
    Type: Grant
    Filed: December 15, 2008
    Date of Patent: December 25, 2012
    Assignee: Ricoh Company, Ltd.
    Inventors: Chisa Kato, Kenji Hari, Toshihisa Takada
  • Publication number: 20090152792
    Abstract: A solenoid device including a plunger, a solenoid configured to cause a displacement of the plunger, and a driving control unit configured to control driving of the solenoid. The driving control unit supplies current pulses to the solenoid and changes a pulse interval of the current pulses.
    Type: Application
    Filed: December 15, 2008
    Publication date: June 18, 2009
    Inventors: Chisa Kato, Kenji Hari, Toshihisa Takada
  • Patent number: 5985393
    Abstract: A heat insulating box, such as a refrigerator box, comprises a heat insulator and a box member that is in contact with the heat insulator. The heat insulator is formed of a urethane foam using either HCFC-123 (CHCl.sub.2 CF.sub.3) or HCFC-141b (CH.sub.3 CCl.sub.2 F) or both as a forming agent, and the box member is formed of a styrene/acrylonitrile/butadiene terpolymer, a styrene/ethylene-.alpha.-olefinic rubbery copolymer/acrylonitrile terpolymer (AES resin), a styrene/alkyl acrylate ester containing rubbery copolymer/acrylonitrile terpolymer (AAS resin), or a mixture of the AES resin and the AAS resin.
    Type: Grant
    Filed: July 7, 1997
    Date of Patent: November 16, 1999
    Assignees: Mitsubishi Denki Kabushiki Kaisha, Ube Cycon, Ltd.
    Inventors: Sumihisa Akahoshi, Yutaka Igarashi, Kouji Hirata, Masanori Tsujihara, Fumiaki Baba, Akira Yamada, Chisa Kato
  • Patent number: 5707700
    Abstract: A heat insulating box, such as a refrigerator box, comprises a heat insulator and a box member that is in contact with the heat insulator. The heat insulator is formed of a urethane foam using either HCFC-123 (CHCl.sub.2 CF.sub.3) or HCFC-141b (CH.sub.3 CCl.sub.2 F) or both as a forming agent, and the box member is formed of an acrylonitrile/ethylene-.varies.-olefinic rubbery polymer/styrene resin (A/epdm/S resin), an acrylonitrile/alkyl acrylate ester rubbery polymer/styrene resin (ASA resin), a mixture of an A/epdm/s resin and an ASA resin, or a mixture of an ASA resin with an acrylonitrile/butadiene/styrene resin.
    Type: Grant
    Filed: December 2, 1994
    Date of Patent: January 13, 1998
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Sumihisa Akahoshi, Yutaka Igarashi, Kouji Hirata, Masanori Tsujihara, Fumiaki Baba, Akira Yamada, Chisa Kato