Patents by Inventor Masayuki Tsugawa

Masayuki Tsugawa 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).

  • Publication number: 20240113309
    Abstract: A fuel cell system that recirculates fuel off gas that has not been used for power generation of a fuel cell is provided. The fuel cell system includes a fuel cell stack, a fuel container, a fuel supply path, and a fuel circulation path. The fuel circulation path is connected to a fuel outlet of the fuel cell stack and extends parallel to an end plate of the fuel cell stack. The fuel supply path is connected to the fuel container, extends parallel to the end plate, and merges with the fuel circulation path at a position where a center of the fuel supply path is offset from a center of the fuel circulation path. The fuel circulation path includes a bent portion downstream of a merging portion with the fuel supply path, and is connected to a fuel inlet of the fuel cell stack downstream of the bent portion.
    Type: Application
    Filed: July 26, 2023
    Publication date: April 4, 2024
    Inventors: Masayuki ITO, Masaaki MATSUSUE, Yumiko TSUGAWA
  • Patent number: 7104923
    Abstract: A start control apparatus includes a position sensor, a basic start determination processor, a sensor output determination processor, and a start permission continuation processor. The basic start determination processor determines whether a sensor output is in a permission region for permitting the start of operation of a motor when an engine start range is selected, and generates a start permission signal when the sensor output is in the permission region. The sensor output determination processor determines whether distinctive variation characteristics are detected in the sensor output when the motor is started based on the start permission signal and supply of electrical current to the motor. The start permission continuation processor permits continuation of operation of the motor when the variation characteristics are detected.
    Type: Grant
    Filed: November 4, 2004
    Date of Patent: September 12, 2006
    Assignee: Aisin AW Co., Ltd.
    Inventors: Mitsunori Nakane, Masayuki Tsugawa, Masayuki Sugiura, Muneo Kusafuka, Kenji Suzuki
  • Patent number: 6984191
    Abstract: A sensor generates a continuous signal in response to operation of a shift lever, and a range is determined for each of the various control operations by comparing the output value of the signal with a range determination pattern set arbitrarily for each of the control operations. Accordingly, each of the control operations can be performed appropriately by using optimal range information.
    Type: Grant
    Filed: December 19, 2003
    Date of Patent: January 10, 2006
    Assignee: Aisin AW Co., LTD
    Inventors: Masayuki Kuwata, Masayuki Tsugawa, Mitsunori Nakane, Kaoru Ootsuki, Masao Saitou, Kenji Suzuki
  • Publication number: 20050121279
    Abstract: A start control apparatus includes a position sensor, a basic start determination processor, a sensor output determination processor, and a start permission continuation processor. The basic start determination processor determines whether a sensor output is in a permission region for permitting the start of operation of a motor when an engine start range is selected, and generates a start permission signal when the sensor output is in the permission region. The sensor output determination processor determines whether distinctive variation characteristics are detected in the sensor output when the motor is started based on the start permission signal and supply of electrical current to the motor. The start permission continuation processor permits continuation of operation of the motor when the variation characteristics are detected.
    Type: Application
    Filed: November 4, 2004
    Publication date: June 9, 2005
    Inventors: Mitsunori Nakane, Masayuki Tsugawa, Masayuki Sugiura, Muneo Kusafuka, Kenji Suzuki
  • Publication number: 20040186646
    Abstract: A sensor generates a continuous signal in response to operation of a shift lever, and a range is determined for each of the various control operations by comparing the output value of the signal with a range determination pattern set arbitrarily for each of the control operations. Accordingly, each of the control operations can be performed appropriately by using optimal range information.
    Type: Application
    Filed: December 19, 2003
    Publication date: September 23, 2004
    Inventors: Masayuki Kuwata, Masayuki Tsugawa, Mitsunori Nakane, Kaoru Ootsuki, Masao Saitou, Kenji Suzuki