Patents by Inventor Hiroo Tazaki

Hiroo Tazaki 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).

  • Two-wire power transmitting/receiving device and its method
    Patent number: 7116962
    Abstract: When power is supplied from a power transmitting side device 1, a FET 103 is turned ON and +12V direct current of a power source 101 is supplied to respective power receiving side devices. When transmission data is transmitted from the power transmitting side device 1, +5V direct current of a power source 201-1 is supplied to a terminal a, and a transistor 104 is turned ON/OFF due to a pulse-like voltage change of the transmission data, whereby the transmission data becomes a pulse-like 0V+5V output waveform, and is output to the respective power receiving side devices. When the power transmitting side device 1 receives reply data from the power receiving side device, the power receiving side device changes a voltage to a 3.5V+5V pulse as reply data. A photocoupler 105 detects the voltage change, whereby the power transmitting side device 1 receives the reply data from the power receiving side device.
    Type: Grant
    Filed: February 26, 2002
    Date of Patent: October 3, 2006
    Assignee: Sekisuijushi Co., Ltd.
    Inventors: Hiroo Tazaki, Yoshinari Mizuta, Mituo Miyagaki
  • Two-wire power transmitting/receiving device and its method
    Publication number: 20040116101
    Abstract: When power is supplied from a power transmitting side device 1, a FET 103 is turned ON and +12V direct current of a power source 101 is supplied to respective power receiving side devices. When transmission data is transmitted from the power transmitting side device 1, +5V direct current of a power source 201-1 is supplied to a terminal a, and a transistor 104 is turned ON/OFF due to a pulse-like voltage change of the transmission data, whereby the transmission data becomes a pulse-like 0V+5V output waveform, and is output to the respective power receiving side devices. When the power transmitting side device 1 receives reply data from the power receiving side device, the power receiving side device changes a voltage to a 3.5V+5V pulse as reply data. A photocoupler 105 detects the voltage change, whereby the power transmitting side device 1 receives the reply data from the power receiving side device.
    Type: Application
    Filed: August 26, 2003
    Publication date: June 17, 2004
    Inventors: Hiroo Tazaki, Yoshinari Mizuta
  • Inquiry system for detecting a selected object
    Patent number: 4814742
    Abstract: An inquiry system is provided for detecting the location of a selected object. The system comprises an answering device having its own identifying address which responds to a detecting command. An answering device is provided on each object to be selected. The detecting command is transmitted from a controller device which communicates with the answering devices through the use of an address.
    Type: Grant
    Filed: April 4, 1986
    Date of Patent: March 21, 1989
    Assignee: Sekisui Jushi Kabushiki Kaisha
    Inventors: Shizuo Morita, Kiyoshi Tada, Tatsuo Togo, Hiroo Tazaki