Patents by Inventor Mikio Tatuguchi

Mikio Tatuguchi 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).

  • Low resistance value resistor
    Patent number: 7042330
    Abstract: The low resistance value resistor 11 has two electrodes 12,13 of metal strips having a high electrical conductivity. The metal strips are affixed on the resistor body by means of rolling and/or thermal diffusion bonding. A fused solder layer is formed on a surface of each electrode comprised by the metal strip. Thus, sufficient bonding strength and superior current distribution in the resistor body is obtained. Further, a portion of the resistor body is trimmed by removing a portion of the body material along a direction of current flow between the electrodes to adjust a resistance value. Thus, a precise resistor value and superior characteristics of temperature coefficient of resistance (TCR) can be obtained.
    Type: Grant
    Filed: April 14, 2004
    Date of Patent: May 9, 2006
    Assignee: KOA Corporation
    Inventors: Keishi Nakamura, Mikio Tatuguchi
  • Low resistance value resistor
    Publication number: 20040196139
    Abstract: The low resistance value resistor 11 has two electrodes 12,13 of metal strips having a high electrical conductivity. The metal strips are affixed on the resistor body by means of rolling and/or thermal diffusion bonding. A fused solder layer is formed on a surface of each electrode comprised by the metal strip. Thus, sufficient bonding strength and superior current distribution in the resistor body is obtained. Further, a portion of the resistor body is trimmed by removing a portion of the body material along a direction of current flow between the electrodes to adjust a resistance value. Thus, a precise resistor value and superior characteristics of temperature coefficient of resistance (TCR) can be obtained.
    Type: Application
    Filed: April 14, 2004
    Publication date: October 7, 2004
    Applicant: KOA CORPORATION
    Inventors: Keishi Nakamura, Mikio Tatuguchi
  • Low resistance value resistor
    Patent number: 6794985
    Abstract: The low resistance value resistor 11 has two electrodes 12, 13 of metal strips having a high electrical conductivity. The metal strips are affixed on the resistor body by means of rolling and/or thermal diffusion bonding. A fused solder layer is formed on a surface of each electrode comprised by the metal strip. Thus, sufficient bonding strength and superior current distribution in the resistor body is obtained. Further, a portion of the resistor body is trimmed by removing a portion of the body material along a direction of current flow between the electrodes to adjust a resistance value. Thus, a precise resistor value and superior characteristics of temperature coefficient of resistance (TCR) can be obtained.
    Type: Grant
    Filed: April 4, 2001
    Date of Patent: September 21, 2004
    Assignee: KOA Corporation
    Inventors: Keishi Nakamura, Mikio Tatuguchi
  • Low resistance value resistor
    Publication number: 20040012480
    Abstract: The low resistance value resistor 11 has two electrodes 12, 13 of metal strips having a high electrical conductivity. The metal strips are affixed on the resistor body by means of rolling and/or thermal diffusion bonding. A fused solder layer is formed on a surface of each electrode comprised by the metal strip. Thus, sufficient bonding strength and superior current distribution in the resistor body is obtained. Further, a portion of the resistor body is trimmed by removing a portion of the body material along a direction of current flow between the electrodes to adjust a resistance value. Thus, a precise resistor value and superior characteristics of temperature coefficient of resistance (TCR) can be obtained.
    Type: Application
    Filed: April 4, 2001
    Publication date: January 22, 2004
    Inventors: Keishi Nakamura, Mikio Tatuguchi