Patents by Inventor Riichi Kitano

Riichi Kitano 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).

  • Discharger and discharger control method including a manual switch to provide power to a control means from an input of the discharger
    Patent number: 8390258
    Abstract: Upon detecting an external signal which instructs to stop discharge, an input voltage equal to or less than a set value for the prevention of overdischarge, or an output voltage equal to or more than a set value for the prevention of output of an overvoltage, a control unit (12) stops discharge to a load (40) by opening a switching element (4b) of a step-down unit (11b). Upon detecting that an external signal is reset or an input voltage equal to or more than a set value larger than the set value for the prevention of overdischarge, the control unit (12) resumes discharge to the load (40) by setting the switching element (4b) in a switching operation state or short-circuiting it.
    Type: Grant
    Filed: February 22, 2012
    Date of Patent: March 5, 2013
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Akira Yamashita, Takahisa Shodai, Akihiro Miyasaka, Riichi Kitano
  • Discharger and discharger control method
    Patent number: 8278781
    Abstract: Upon detecting an external signal which instructs to stop discharge, an input voltage equal to or less than a set value for the prevention of overdischarge, or an output voltage equal to or more than a set value for the prevention of output of an overvoltage, a control unit (12) stops discharge to a load (40) by opening a switching element (4b) of a step-down unit (11b). Upon detecting that an external signal is reset or an input voltage equal to or more than a set value larger than the set value for the prevention of overdischarge, the control unit (12) resumes discharge to the load (40) by setting the switching element (4b) in a switching operation state or short-circuiting it.
    Type: Grant
    Filed: May 25, 2007
    Date of Patent: October 2, 2012
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Akira Yamashita, Takahisa Shodai, Akihiro Miyasaka, Riichi Kitano
  • DISCHARGER AND DISCHARGER CONTROL METHOD
    Publication number: 20120146610
    Abstract: Upon detecting an external signal which instructs to stop discharge, an input voltage equal to or less than a set value for the prevention of overdischarge, or an output voltage equal to or more than a set value for the prevention of output of an overvoltage, a control unit (12) stops discharge to a load (40) by opening a switching element (4b) of a step-down unit (11b). Upon detecting that an external signal is reset or an input voltage equal to or more than a set value larger than the set value for the prevention of overdischarge, the control unit (12) resumes discharge to the load (40) by setting the switching element (4b) in a switching operation state or short-circuiting it.
    Type: Application
    Filed: February 22, 2012
    Publication date: June 14, 2012
    Inventors: Akira YAMASHITA, Takahisa Shodai, Akihiro Miyasaka, Riichi Kitano
  • DISCHARGER AND DISCHARGER CONTROL METHOD
    Publication number: 20120146616
    Abstract: Upon detecting an external signal which instructs to stop discharge, an input voltage equal to or less than a set value for the prevention of overdischarge, or an output voltage equal to or more than a set value for the prevention of output of an overvoltage, a control unit (12) stops discharge to a load (40) by opening a switching element (4b) of a step-down unit (11b). Upon detecting that an external signal is reset or an input voltage equal to or more than a set value larger than the set value for the prevention of overdischarge, the control unit (12) resumes discharge to the load (40) by setting the switching element (4b) in a switching operation state or short-circuiting it.
    Type: Application
    Filed: February 22, 2012
    Publication date: June 14, 2012
    Inventors: Akira YAMASHITA, Takahisa Shodai, Akihiro Miyasaka, Riichi Kitano
  • Device and method for determining replacement of storage battery
    Patent number: 8148994
    Abstract: A control unit (16) of a replacement determination device charges one or more battery modules (10) as determination targets, and measures the voltage change value of the battery module (10) in a predetermined period of time from the time of stoppage of charge by using a voltage measuring device (14). If the voltage change value becomes equal to or more than a reference voltage change value consecutively a predetermined number of times which is equal to or more than one, the control unit determines that the battery module (10) needs to be replaced.
    Type: Grant
    Filed: April 24, 2007
    Date of Patent: April 3, 2012
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Akira Yamashita, Takahisa Shodai, Akihiro Miyasaka, Riichi Kitano
  • Device and Method for Determining Replacement of Storage Battery
    Publication number: 20100231226
    Abstract: A control unit (16) of a replacement determination device charges one or more battery modules (10) as determination targets, and measures the voltage change value of the battery module (10) in a predetermined period of time from the time of stoppage of charge by using a voltage measuring device (14). If the voltage change value becomes equal to or more than a reference voltage change value consecutively a predetermined number of times which is equal to or more than one, the control unit determines that the battery module (10) needs to be replaced.
    Type: Application
    Filed: April 24, 2007
    Publication date: September 16, 2010
    Inventors: Akira Yamashita, Takahisa Shodai, Akihiro Miyasaka, Riichi Kitano
  • DISCHARGER AND DISCHARGER CONTROL METHOD
    Publication number: 20100013324
    Abstract: Upon detecting an external signal which instructs to stop discharge, an input voltage equal to or less than a set value for the prevention of overdischarge, or an output voltage equal to or more than a set value for the prevention of output of an overvoltage, a control unit (12) stops discharge to a load (40) by opening a switching element (4b) of a step-down unit (11b). Upon detecting that an external signal is reset or an input voltage equal to or more than a set value larger than the set value for the prevention of overdischarge, the control unit (12) resumes discharge to the load (40) by setting the switching element (4b) in a switching operation state or short-circuiting it.
    Type: Application
    Filed: May 25, 2007
    Publication date: January 21, 2010
    Inventors: Akira Yamashita, Takahisa Shodai, Akihiro Miyasaka, Riichi Kitano