Patents by Inventor Jun Miyanoiri

Jun Miyanoiri 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).

  • Power supply switching circuit
    Patent number: 8451049
    Abstract: Provided is a power supply switching circuit with a smaller circuit scale. When a detector (11) detects that a voltage (V1) as an input power supply voltage is higher than a detection voltage (VDET), a control circuit (41) operates with a voltage (V4) output from a diode OR circuit (42), supplies a voltage (V2) as an input power supply voltage to a gate of a PMOS transistor (17), supplies a voltage (V3) to a gate of a PMOS transistor (18), and supplies a ground voltage to a gate of a PMOS transistor (19). Then, the PMOS transistors (17 and 18) are turned OFF and the PMOS transistor (19) is turned ON. In this case, the voltage V1 of a first terminal (T1) is output from a third terminal (T3) as the voltage (V3), which is an output power supply voltage.
    Type: Grant
    Filed: February 23, 2012
    Date of Patent: May 28, 2013
    Assignee: Seiko Instruments Inc.
    Inventor: Jun Miyanoiri
  • Voltage application time period measuring circuit and power supply apparatus including the same
    Patent number: 8450994
    Abstract: Provided are a voltage application time period measuring circuit which does not require a battery, and a power supply apparatus including the voltage application time period measuring circuit. Each of a voltage application time period memory (32) and a set time period memory (33) is a nonvolatile memory, and hence it is unnecessary to provide a battery for holding information stored in each of the memories in the outside of the voltage application time period measuring circuit (30) and a power supply apparatus cost is reduced correspondingly.
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: May 28, 2013
    Assignee: Seiko Instruments Inc.
    Inventors: Jun Miyanoiri, Shinichi Idomukai, Tomoyuki Nakaue, Teruyuki Iwashima, Takashi Kohata
  • POWER SUPPLY SWITCHING CIRCUIT
    Publication number: 20120229172
    Abstract: Provided is a power supply switching circuit with a smaller circuit scale. When a detector (11) detects that a voltage (V1) as an input power supply voltage is higher than a detection voltage (VDET), a control circuit (41) operates with a voltage (V4) output from a diode OR circuit (42), supplies a voltage (V2) as an input power supply voltage to a gate of a PMOS transistor (17), supplies a voltage (V3) to a gate of a PMOS transistor (18), and supplies a ground voltage to a gate of a PMOS transistor (19). Then, the PMOS transistors (17 and 18) are turned OFF and the PMOS transistor (19) is turned ON. In this case, the voltage V1 of a first terminal (T1) is output from a third terminal (T3) as the voltage (V3), which is an output power supply voltage.
    Type: Application
    Filed: February 23, 2012
    Publication date: September 13, 2012
    Inventor: Jun Miyanoiri
  • VOLTAGE APPLICATION TIME PERIOD MEASURING CIRCUIT AND POWER SUPPLY APPARATUS INCLUDING THE SAME
    Publication number: 20110122665
    Abstract: Provided are a voltage application time period measuring circuit which does not require a battery, and a power supply apparatus including the voltage application time period measuring circuit. Each of a voltage application time period memory (32) and a set time period memory (33) is a nonvolatile memory, and hence it is unnecessary to provide a battery for holding information stored in each of the memories in the outside of the voltage application time period measuring circuit (30) and a power supply apparatus cost is reduced correspondingly.
    Type: Application
    Filed: November 19, 2010
    Publication date: May 26, 2011
    Inventors: Jun Miyanoiri, Shinichi Idomukai, Tomoyuki Nakaue, Teruyuki Iwashima, Takashi Kohata