Patents by Inventor Hajime Suetsugu

Hajime Suetsugu 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).

  • Patent number: 11858045
    Abstract: Provided is a Fe-based sintered body which has both of a high hardness and a high thermal conductivity and which can be more stably produced. The Fe-based sintered body includes: a matrix (1) containing Fe as a main component; and a hard phase (4) dispersed in the matrix (1). The matrix (1) is formed in a network shape and contains ?Fe. The hard phase (4) contains TiC.
    Type: Grant
    Filed: July 24, 2019
    Date of Patent: January 2, 2024
    Assignees: Hiroshima University, Y-tec Corporation, keylex corporation, Mazda Motor Corporation
    Inventors: Kazuhiro Matsugi, Yujiao Ke, Zhefeng Xu, Kenjiro Sugio, Yongbum Choi, Gen Sasaki, Hajime Suetsugu, Hiroki Kondo, Hideki Manabe, Kyotaro Yamane, Kenichi Hatakeyama, Keizo Kawasaki, Tsuyoshi Itaoka, Shinsaku Seno, Yasushi Tamura, Ichirou Ino, Yoshihide Hirao
  • Publication number: 20210316361
    Abstract: Provided is a method of producing a composite having high strength and high thermal conductivity. The method includes: an alloy preparation step including preparing an alloy which is a solid solution containing ?-Fe as a solvent and at least one type of ?-phase stabilizing element as a solute; a first mixing step including mixing at least one type of ?-phase stabilizing element in powder form and SiC to prepare a first mixture; a second mixing step including mixing the alloy and the first mixture to prepare a second mixture; and a sintering step including sintering the second mixture.
    Type: Application
    Filed: July 9, 2019
    Publication date: October 14, 2021
    Inventors: Kenjiro SUGIO, Takuya TAKAHASHI, Hitoshi SAWADA, Gen SASAKI, Kazuhiro MATSUGI, Yongbum CHOI, Zhefeng XU, Hajime SUETSUGU, Hiroki KONDO, Hideki MANABE, Kyotaro YAMANE, Kenichi HATAKEYAMA, Keizo KAWASAKI, Tsuyoshi ITAOKA, Shinsaku SENO, Yasushi TAMURA, Ichirou INO, Yoshihide HIRAO
  • Publication number: 20210308756
    Abstract: Provided is a Fe-based sintered body which has both of a high hardness and a high thermal conductivity and which can be more stably produced. The Fe-based sintered body includes: a matrix (1) containing Fe as a main component; and a hard phase (4) dispersed in the matrix (1). The matrix (1) is formed in a network shape and contains ?Fe. The hard phase (4) contains TiC.
    Type: Application
    Filed: July 24, 2019
    Publication date: October 7, 2021
    Inventors: Kazuhiro MATSUGI, Yujiao KE, Zhefeng XU, Kenjiro SUGIO, Yongbum CHOI, Gen SASAKI, Hajime SUETSUGU, Hiroki KONDO, Hideki MANABE, Kyotaro YAMANE, Kenichi HATAKEYAMA, Keizo KAWASAKI, Tsuyoshi ITAOKA, Shinsaku SENO, Yasushi TAMURA, Ichirou INO, Yoshihide HIRAO
  • Patent number: 8594906
    Abstract: Methods and systems for diagnosing a multiple cylinder engine are provided herein. An exemplary method of diagnosing an internal combustion engine system having a multi-cylinder internal combustion engine is described. In one example, cylinder air-fuel imbalance is determined from the squared value of a difference of two values.
    Type: Grant
    Filed: March 26, 2010
    Date of Patent: November 26, 2013
    Assignees: Mazda Motor Corporation, Ford Global Technologies, LLC
    Inventors: Hajime Suetsugu, Kenji Kojima, Tetsushi Hosokai, John D. Russell
  • Patent number: 8573042
    Abstract: This disclosure provides a method for measuring an output characteristic of an air fuel ratio sensor based on an output value of the air fuel ratio sensor at the time of changing a fuel injection amount. Under a predetermined condition, an increase in the fuel injection amount is started from a particular cylinder and the increase in the fuel injection amount is continued for a given time period, or a decrease in the fuel injection amount is started from the particular cylinder and the decrease in the fuel injection amount is continued for the given time period. Therefore, the output characteristic of the air fuel ratio detecting module can be measured with sufficient accuracy, regardless of the contacting strength of emission gas for every cylinder against the air fuel ratio detecting module.
    Type: Grant
    Filed: November 11, 2010
    Date of Patent: November 5, 2013
    Assignee: Mazda Motor Corporation
    Inventors: Hajime Suetsugu, Makoto Matsumae
  • Patent number: 8365587
    Abstract: This disclosure provides a method of detecting a cylinder-to-cylinder gap abnormality of an air fuel ratio with sufficient accuracy according to an individual specificity of an air fuel ratio detecting module. Particularly, the method may be used for an engine to detect the cylinder-to-cylinder gap abnormality of the air fuel ratio of supplied air fuel mixture abnormality based on an output value of a linear O2 sensor. Under a first predetermined condition, an output characteristic of the sensor is measured. The measured output characteristic is compared with a reference characteristic set in advance to calculate a correction value for correcting the sensor output according to the individual specificity of the sensor. Subsequently, under a second predetermined condition, the sensor output value is corrected based on the calculated correction value to detect the abnormality based on the corrected output value of the sensor.
    Type: Grant
    Filed: November 11, 2010
    Date of Patent: February 5, 2013
    Assignee: Mazda Motor Corporation
    Inventors: Hajime Suetsugu, Kenji Kojima
  • Publication number: 20110238279
    Abstract: Methods and systems for diagnosing a multiple cylinder engine are provided herein. An exemplary method of diagnosing an internal combustion engine system having a multi-cylinder internal combustion engine is described. In one example, cylinder air-fuel imbalance is determined from the squared value of a difference of two values.
    Type: Application
    Filed: March 26, 2010
    Publication date: September 29, 2011
    Applicants: MAZDA MOTOR CORPORATION, FORD GLOBAL TECHNOLOGIES, LLC.
    Inventors: Hajime Suetsugu, Kenji Kojima, Tetsushi Hosokai, John D. Russell
  • Publication number: 20110113870
    Abstract: This disclosure provides a method of detecting a cylinder-to-cylinder gap abnormality of an air fuel ratio with sufficient accuracy according to an individual specificity of an air fuel ratio detecting module. Particularly, the method may be used for an engine to detect the cylinder-to-cylinder gap abnormality of the air fuel ratio of supplied air fuel mixture abnormality based on an output value of a linear O2 sensor. Under a first predetermined condition, an output characteristic of the sensor is measured. The measured output characteristic is compared with a reference characteristic set in advance to calculate a correction value for correcting the sensor output according to the individual specificity of the sensor. Subsequently, under a second predetermined condition, the sensor output value is corrected based on the calculated correction value to detect the abnormality based on the corrected output value of the sensor.
    Type: Application
    Filed: November 11, 2010
    Publication date: May 19, 2011
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Hajime Suetsugu, Kenji Kojima
  • Publication number: 20110113871
    Abstract: This disclosure provides a method for measuring an output characteristic of an air fuel ratio sensor based on an output value of the air fuel ratio sensor at the time of changing a fuel injection amount. Under a predetermined condition, an increase in the fuel injection amount is started from a particular cylinder and the increase in the fuel injection amount is continued for a given time period, or a decrease in the fuel injection amount is started from the particular cylinder and the decrease in the fuel injection amount is continued for the given time period. Therefore, the output characteristic of the air fuel ratio detecting module can be measured with sufficient accuracy, regardless of the contacting strength of emission gas for every cylinder against the air fuel ratio detecting module.
    Type: Application
    Filed: November 11, 2010
    Publication date: May 19, 2011
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Hajime SUETSUGU, Makoto MATSUMAE
  • Patent number: 7403121
    Abstract: A positioning terminal for generating position information of an object being transported includes a radio frequency identification (RFID) module for storing status information of the object relative to at least two predefined locations, and a communication module for sending position information of the object to a control center. A controller reads the status information from the RFID module at predefined intervals, and controls activation of the communication module based on the status information.
    Type: Grant
    Filed: March 30, 2006
    Date of Patent: July 22, 2008
    Assignee: Fujitsu Limited
    Inventor: Hajime Suetsugu
  • Publication number: 20070090952
    Abstract: A positioning terminal for generating position information of an object being transported includes a radio frequency identification (RFID) module for storing status information of the object relative to at least two predefined locations, and a communication module for sending position information of the object to a control center. A controller reads the status information from the RFID module at predefined intervals, and controls activation of the communication module based on the status information.
    Type: Application
    Filed: March 30, 2006
    Publication date: April 26, 2007
    Inventor: Hajime Suetsugu
  • Publication number: 20020188569
    Abstract: A transportation intermediation apparatus includes a main control section. The main control section causes a consignor to input a transportation condition of a package with a consignor client, shows transportation fees of respective forwarding agents matching with the transportation condition to the consignor, causes the consignor to select a forwarding agent as a transportation assignee from a plurality of forwarding agents, and orders a forwarding agent client of the selected forwarding agent to perform a transportation business through the internet.
    Type: Application
    Filed: September 21, 2001
    Publication date: December 12, 2002
    Applicant: Fujitsu Limited of Kawasaki, Japan
    Inventors: Yasuhiro Nishimura, Hajime Suetsugu, Takashi Sugihara, Toshiyasu Kojima
  • Patent number: 5501074
    Abstract: An exhaust gas purifying system for an automobile engine is equipped with a metal zeolite catalytic converter for deoxidizing and purifying nitrogen oxides in exhaust gas. The system controls and compulsorily changes the air-fuel ratio of the fuel mixture injected into the automobile engine based on a target air-fuel ratio only when the temperature of the exhaust gas, before entering the catalyst, is greater than a specific temperature.
    Type: Grant
    Filed: March 22, 1994
    Date of Patent: March 26, 1996
    Assignee: Mazda Motor Corporation
    Inventors: Hajime Suetsugu, Tadataka Nakazumi, Akihide Takami, Takashi Takemoto
  • Patent number: 5131357
    Abstract: A V-type engine cylinder block includes a mounting pedestal, integrally formed with the block in a V-shaped space between two cylinder banks and interconnecting the cylinder banks. A top wall is secured to the mounting pedestal and extends over almost the entire length of the V-shaped space in a lengthwise direction of the cylinder block. A plurality of bosses are formed with internal threads for securing a bracket, for mounting the cylinder block onto a car body, to one end wall of the cylinder block by bolts. The mounting pedestal and bosses are interconnected by ribs integrally formed with the cylinder block.
    Type: Grant
    Filed: April 1, 1991
    Date of Patent: July 21, 1992
    Assignee: Mazda Motor Corporation
    Inventors: Yasushi Inoue, Shigeki Nakatani, Yutaka Nishinaga, Hajime Suetsugu, Takashi Sakono, Seiji Nanba