Patents by Inventor Yuuichi Nagasawa

Yuuichi Nagasawa 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).

  • Image processing apparatus and method of transmitting reference clock
    Patent number: 8560877
    Abstract: An engine unit and a control unit are connected via an interface. A power source supplies electric power to the interface. The engine unit is controlled based on a reference clock generated in the control unit and transmitted to the engine unit via the interface. Only when a voltage output from the power source to the interface is in the operating-voltage range, the clock generator sends the reference clock to the engine unit via the interface.
    Type: Grant
    Filed: March 8, 2011
    Date of Patent: October 15, 2013
    Assignee: Ricoh Company, Ltd.
    Inventor: Yuuichi Nagasawa
  • IMAGE PROCESSING APPARATUS AND METHOD OF TRANSMITTING REFERENCE CLOCK
    Publication number: 20110161720
    Abstract: An engine unit and a control unit are connected via an interface. A power source supplies electric power to the interface. The engine unit is controlled based on a reference clock generated in the control unit and transmitted to the engine unit via the interface. Only when a voltage output from the power source to the interface is in the operating-voltage range, the clock generator sends the reference clock to the engine unit via the interface.
    Type: Application
    Filed: March 8, 2011
    Publication date: June 30, 2011
    Inventor: Yuuichi NAGASAWA
  • Image processing apparatus and method of transmitting reference clock
    Patent number: 7930582
    Abstract: An engine unit and a control unit are connected via an interface. A power source supplies electric power to the interface. The engine unit is controlled based on a reference clock generated in the control unit and transmitted to the engine unit via the interface. Only when a voltage output from the power source to the interface is in the operating-voltage range, the clock generator sends the reference clock to the engine unit via the interface.
    Type: Grant
    Filed: November 7, 2007
    Date of Patent: April 19, 2011
    Assignee: Ricoh Company, Ltd.
    Inventor: Yuuichi Nagasawa
  • IMAGE PROCESSING APPARATUS AND METHOD OF TRANSMITTING REFERENCE CLOCK
    Publication number: 20080120453
    Abstract: An engine unit and a control unit are connected via an interface. A power source supplies electric power to the interface. The engine unit is controlled based on a reference clock generated in the control unit and transmitted to the engine unit via the interface. Only when a voltage output from the power source to the interface is in the operating-voltage range, the clock generator sends the reference clock to the engine unit via the interface.
    Type: Application
    Filed: November 7, 2007
    Publication date: May 22, 2008
    Inventor: Yuuichi NAGASAWA