Patents by Inventor Keizo Chiba

Keizo Chiba 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).

  • Powder supplying device and image forming device
    Patent number: 7826778
    Abstract: In a powder supplying device, a powder container contains powder therein and is provided at a bottom of the powder container with a gas blowout part for ejecting gas to the inside of the powder container. A powder transport unit attracts powder contained in the powder container from a suction opening and transports the powder to a powder receiving device. A first detection unit is provided in the powder container to detect a remaining powder in the powder container.
    Type: Grant
    Filed: January 29, 2007
    Date of Patent: November 2, 2010
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiroshi Sano, Hirosato Amano, Keizo Chiba, Hiroshi Tateishi, Tetsuo Noji, Kazuhisa Sudo, Fumihito Itoh
  • Imaging apparatus having particle supply and collection apparatus arranged outside imaging apparatus
    Patent number: 7773918
    Abstract: A particle supply apparatus is disclosed that includes a particle accommodating unit that accommodates particles, a gas spouting unit that is arranged at a bottom portion of the particle accommodating unit and is configured to spout gas toward the particles, a conveying mechanism that applies suction to the particles accommodated in the particle accommodating unit and conveys the particles toward a supply destination, and a gas discharge unit that discharges gas contained within the particle accommodating unit toward an exterior side of the particle accommodating unit.
    Type: Grant
    Filed: January 15, 2009
    Date of Patent: August 10, 2010
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiroshi Sano, Hirosato Amano, Keizo Chiba, Tetsuo Noji, Hiroshi Tateishi, Kazuhisa Sudo, Fumihito Itoh
  • PARTICLE SUPPLY APPARATUS AND IMAGING APPARATUS
    Publication number: 20090129838
    Abstract: A particle supply apparatus is disclosed that includes a particle accommodating unit that accommodates particles, a gas spouting unit that is arranged at a bottom portion of the particle accommodating unit and is configured to spout gas toward the particles, a conveying mechanism that applies suction to the particles accommodated in the particle accommodating unit and conveys the particles toward a supply destination, and a gas discharge unit that discharges gas contained within the particle accommodating unit toward an exterior side of the particle accommodating unit.
    Type: Application
    Filed: January 15, 2009
    Publication date: May 21, 2009
    Inventors: Hiroshi Sano, Hirosato Amano, Keizo Chiba, Tetsuo Noji, Hiroshi Tateishi, Kazuhisa Sudo, Fumihito Itoh
  • Particle supply apparatus and imaging apparatus having a gas spouting unit for fluidizing the particles
    Patent number: 7489892
    Abstract: A particle supply apparatus is disclosed that includes a particle accommodating unit that accommodates particles, a gas spouting unit that is arranged at a bottom portion of the particle accommodating unit and is configured to spout gas toward the particles, a conveying mechanism that applies suction to the particles accommodated in the particle accommodating unit and conveys the particles toward a supply destination, and a gas discharge unit that discharges gas contained within the particle accommodating unit toward an exterior side of the particle accommodating unit.
    Type: Grant
    Filed: February 28, 2007
    Date of Patent: February 10, 2009
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiroshi Sano, Hirosato Amano, Keizo Chiba, Tetsuo Noji, Hiroshi Tateishi, Kazuhisa Sudo, Fumihito Itoh
  • Particle supply apparatus, imaging apparatus, and monitoring system
    Patent number: 7463853
    Abstract: A particle supply apparatus is disclosed that includes a particle accommodating unit that accommodates particles, a gas spouting unit that is arranged at a bottom portion of the particle accommodating unit and is configured to spout gas toward the particles, and a conveying mechanism that applies suction to the particles accommodated in the particle accommodating unit and conveys the particles toward a supply destination.
    Type: Grant
    Filed: February 28, 2007
    Date of Patent: December 9, 2008
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiroshi Sano, Hirosato Amano, Keizo Chiba, Tetsuo Noji, Hiroshi Tateishi, Kazuhisa Sudo, Fumihito Itoh
  • Power Supplying Device and Image Forming Device
    Publication number: 20080193161
    Abstract: In a powder supplying device, a powder container contains powder therein and is provided at a bottom of the powder container with a gas blowout part for ejecting gas to the inside of the powder container. A powder transport unit attracts powder contained in the powder container from a suction opening and transports the powder to a powder receiving device. A first detection unit is provided in the powder container to detect a remaining powder in the powder container.
    Type: Application
    Filed: January 29, 2007
    Publication date: August 14, 2008
    Inventors: Hiroshi Sano, Hirosato Amano, Keizo Chiba, Hiroshi Tateishi, Tetsuo Noji, Kazuhisa Sudo, Fumihito Itoh
  • PARTICLE SUPPLY APPARATUS, IMAGING APPARATUS, AND MONITORING SYSTEM
    Publication number: 20070201904
    Abstract: A particle supply apparatus is disclosed that includes a particle accommodating unit that accommodates particles, a gas spouting unit that is arranged at a bottom portion of the particle accommodating unit and is configured to spout gas toward the particles, and a conveying mechanism that applies suction to the particles accommodated in the particle accommodating unit and conveys the particles toward a supply destination.
    Type: Application
    Filed: February 28, 2007
    Publication date: August 30, 2007
    Inventors: Hiroshi Sano, Hirosato Amano, Keizo Chiba, Tetsuo Noji, Hiroshi Tateishi, Kazuhisa Sudo, Fumihito Itoh
  • PARTICLE SUPPLY APPARATUS AND IMAGING APPARATUS
    Publication number: 20070201905
    Abstract: A particle supply apparatus is disclosed that includes a particle accommodating unit that accommodates particles, a gas spouting unit that is arranged at a bottom portion of the particle accommodating unit and is configured to spout gas toward the particles, a conveying mechanism that applies suction to the particles accommodated in the particle accommodating unit and conveys the particles toward a supply destination, and a gas discharge unit that discharges gas contained within the particle accommodating unit toward an exterior side of the particle accommodating unit.
    Type: Application
    Filed: February 28, 2007
    Publication date: August 30, 2007
    Inventors: Hiroshi Sano, Hirosato Amano, Keizo Chiba, Tetsuo Noji, Hiroshi Tateishi, Kazuhisa Sudo, Fumihito Itoh