Patents by Inventor Masato Takase

Masato Takase 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 converter with shunt resistor
    Patent number: 6960980
    Abstract: A power converter includes a shunt resistor constituted by a shunt resistance and a plurality of main electrodes made of a sheet-like resistive material. In the shunt resistor, plates lower in volume electric resistivity than the resistive material, higher in thermal conductivity than the resistive material and thicker in thickness than the resistive material are fixedly attached by solder, to the side surfaces of the main electrodes opposite to the side surfaces with which the main electrodes are fixedly attached to an insulating layer. At least one plate main electrode for electrically connecting with main circuit wiring is provided in each of the plates. At least one constricted portion is formed between each of the plate main electrodes and the shunt resistance. Plate detection electrodes for detecting a voltage between the opposite ends of the shunt resistance is provided on the plates near the shunt resistance portion.
    Type: Grant
    Filed: March 19, 2002
    Date of Patent: November 1, 2005
    Assignee: Hitachi, Ltd.
    Inventors: Kinya Nakatsu, Masataka Sasaki, Ryuichi Saito, Satoshi Ibori, Masato Takase
  • Vehicle power converted with shunt resistor having plate-shape resistive member
    Patent number: 6794854
    Abstract: A power converter includes a shunt resistor constituted by a shunt resistance and a plurality of main electrodes made of a sheet-like resistive material. In the shunt resistor, plates lower in volume electric resistivity than the resistive material, higher in thermal conductivity than the resistive material and thicker in thickness than the resistive material are fixedly attached by solder, to the side surfaces of the main electrodes opposite to the side surfaces with which the main electrodes are fixedly attached to an insulating layer. At least one plate main electrode for electrically connecting with main circuit wiring is provided in each of the plates. At least one constricted portion is formed between each of the plate main electrodes and the shunt resistance. Plate detection electrodes for detecting a voltage between the opposite ends of the shunt resistance is provided on the plates near the shunt resistance portion.
    Type: Grant
    Filed: November 7, 2002
    Date of Patent: September 21, 2004
    Assignee: Hitachi, Ltd.
    Inventors: Kinya Nakatsu, Masataka Sasaki, Ryuichi Saito, Satoshi Ibori, Masato Takase
  • Power converter with shunt resistor
    Publication number: 20030090241
    Abstract: A power converter includes a shunt resistor constituted by a shunt resistance and a plurality of main electrodes made of a sheet-like resistive material. In the shunt resistor, plates lower in volume electric resistivity than the resistive material, higher in thermal conductivity than the resistive material and thicker in thickness than the resistive material are fixedly attached by solder, to the side surfaces of the main electrodes opposite to the side surfaces with which the main electrodes are fixedly attached to an insulating layer. At least one plate main electrode for electrically connecting with main circuit wiring is provided in each of the plates. At least one constricted portion is formed between each of the plate main electrodes and the shunt resistance. Plate detection electrodes for detecting a voltage between the opposite ends of the shunt resistance is provided on the plates near the shunt resistance portion.
    Type: Application
    Filed: November 7, 2002
    Publication date: May 15, 2003
    Applicant: Hitachi, Ltd.
    Inventors: Kinya Nakatsu, Masataka Sasaki, Ryuichi Saito, Satoshi Ibori, Masato Takase
  • Power converter with shunt resistor
    Publication number: 20030038706
    Abstract: A power converter includes a shunt resistor constituted by a shunt resistance and a plurality of main electrodes made of a sheet-like resistive material. In the shunt resistor, plates lower in volume electric resistivity than the resistive material, higher in thermal conductivity than the resistive material and thicker in thickness than the resistive material are fixedly attached by solder, to the side surfaces of the main electrodes opposite to the side surfaces with which the main electrodes are fixedly attached to an insulating layer. At least one plate main electrode for electrically connecting with main circuit wiring is provided in each of the plates. At least one constricted portion is formed between each of the plate main electrodes and the shunt resistance. Plate detection electrodes for detecting a voltage between the opposite ends of the shunt resistance is provided on the plates near the shunt resistance portion.
    Type: Application
    Filed: March 19, 2002
    Publication date: February 27, 2003
    Inventors: Kinya Nakatsu, Masataka Sasaki, Ryuichi Saito, Satoshi Ibori, Masato Takase