Patents by Inventor Hideharu Yamazaki

Hideharu Yamazaki 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: 20190157667
    Abstract: The present invention relates to lithium composite oxide particles which can be produced by mixing nickel-cobalt-manganese-based compound particles, a zirconium raw material and a lithium raw material with each other and then calcining the resulting mixture, and comprise a Zr compound that is allowed to be present on a surface thereof, in which the Zr compound is represented by the chemical formula: Lix(Zr1-yAy)Oz wherein x, y and z are 2.0?x?8.0; 0?y?1.0; and 2.0?z?6.0, respectively, and a content of Zr in the lithium composite oxide particles is 0.05 to 1.0% by weight. By using the lithium composite oxide particles as a positive electrode active substance, it is possible to produce a lithium ion secondary battery that has a low electric resistance at a high temperature, and is excellent in cycle characteristic at a high temperature as well as high-temperature rate characteristic.
    Type: Application
    Filed: December 18, 2018
    Publication date: May 23, 2019
    Inventors: Minoru Yamazaki, Osamu Sasaki, Shoichi Fujino, Hideharu Mitsui, Takayuki Yamamura, Kunihiro Uramatsu, Akihisa Kajiyama, Ryuta Masaki
  • Patent number: 7500473
    Abstract: A vehicle fuel supply device including a saddle-shaped fuel tank comprised of a main chamber and an auxiliary chamber. A reservoir is disposed within the main chamber. A main pump is provided within the reservoir. A sub-pump is detachably provided within the reservoir. The fuel in the reservoir is drawn up by an operation of the main pump to supply fuel to an engine. A portion of the drawn-up fuel is utilized to generate a negative pressure, the negative pressure is utilized to transfer the fuel in the auxiliary chamber to the reservoir, and the negative pressure is utilized to introduce the fuel in the main chamber into the reservoir.
    Type: Grant
    Filed: March 26, 2008
    Date of Patent: March 10, 2009
    Assignee: Honda Motor Co., Ltd.
    Inventors: Kazuhiro Kobayashi, Takeaki Nakajima, Shoichi Hokazono, Shinya Murabayashi, Hideharu Yamazaki, Kenji Hirose, Takeshi Kumakura, Shukoh Terata
  • Publication number: 20080236550
    Abstract: A vehicle fuel supply device including a saddle-shaped fuel tank comprised of a main chamber and an auxiliary chamber. A reservoir is disposed within the main chamber. A main pump is provided within the reservoir. A sub-pump is detachably provided within the reservoir. The fuel in the reservoir is drawn up by an operation of the main pump to supply fuel to an engine. A portion of the drawn-up fuel is utilized to generate a negative pressure, the negative pressure is utilized to transfer the fuel in the auxiliary chamber to the reservoir, and the negative pressure is utilized to introduce the fuel in the main chamber into the reservoir.
    Type: Application
    Filed: March 26, 2008
    Publication date: October 2, 2008
    Applicant: Honda Motor Co., Ltd.
    Inventors: Kazuhiro Kobayashi, Takeaki Nakajima, Shoichi Hokazono, Shinya Murabayashi, Hideharu Yamazaki, Kenji Hirose, Takeshi Kumakura, Shukoh Terata
  • Patent number: 7062968
    Abstract: A temperature control apparatus for a humidity sensor is provided for preventing impurities from sticking on a sensor element, while protecting the sensor element from cracking due to the humidity sensor heated by a heater in the presence of condensation, to maintain a high detection accuracy of the humidity sensor. The temperature control apparatus is configured to control the temperature of a sensor element of a humidity sensor disposed in an exhaust passage of an internal combustion engine for detecting the humidity within the exhaust passage. The temperature control apparatus comprises a heater for heating the sensor element, a temperature sensor for detecting the temperature of the sensor element, and an ECU for controlling a heating amount of the heater to bring the detected temperature of the sensor element to a first predetermined temperature during an operation of the internal combustion engine.
    Type: Grant
    Filed: December 19, 2002
    Date of Patent: June 20, 2006
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Masaki Ueno, Kei Machida, Tetsuo Endo, Hideharu Yamazaki
  • Patent number: 6928805
    Abstract: A characteristic change of a humidity sensor 19 is detected based on the transitional characteristics of output data of the humidity sensor 19 with respect to integrated moisture quantity data representative of an integrated amount of moisture that is supplied to an HG adsorbent 7 by an exhaust gas after an engine 1 has started to operate. A parameter for grasping a state of the HC adsorbent 7 is corrected. The state, such as a deteriorated state or the like, of a hydrocarbon adsorbent (HC adsorbent) is properly monitored while compensating for the effect of the characteristic change of the humidity sensor and the effect of variations of the characteristics of individual units of the humidity sensor.
    Type: Grant
    Filed: October 21, 2002
    Date of Patent: August 16, 2005
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Hideharu Yamazaki, Masahiro Sato, Kei Machida, Tetsuo Endo, Masaki Ueno
  • Patent number: 6923849
    Abstract: A hydrocarbon adsorbent state determining apparatus is provided for compensating the ability of a hydrocarbon adsorbent to adsorb moisture for fluctuations due to a change in the flow velocity of exhaust gases to accurately determine the state of the hydrocarbon adsorbent, including a deterioration thereof, irrespective of the change in the flow rate of exhaust gases. The hydrocarbon adsorbent state determining apparatus determines the state of a hydrocarbon adsorbent disposed in an exhaust system of an internal combustion engine for adsorbing hydrocarbons and moisture within exhaust gases.
    Type: Grant
    Filed: June 30, 2003
    Date of Patent: August 2, 2005
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Masaki Ueno, Hideharu Yamazaki, Shiro Takakura, Yasuyuki Miyahara, Tetsuo Endo
  • Patent number: 6878347
    Abstract: An exhaust gas purification system of an internal combustion engine having a bypass exhaust gas passage, openable through a switch-over valve, branched from an exhaust pipe at a location downstream of a catalytic converter and again merged into the exhaust pipe at a downstream point, an adsorbent installed in the bypass exhaust gas passage which adsorbs unburned component of the exhaust gas, and an EGR pipe which recirculates the exhaust gas including the unburned components at a location upstream of the catalytic converter, wherein the EGR pipe is made of metal such as stainless steel and is connected to the bypass exhaust gas passage such that the recirculation pipe is brought into thermal contact with the exhaust pipe, thereby enabling to effectively prevent blocking or corrosion of the EGR pipe or switch-over valve from occurring. The inner wall of the recirculation pipe is formed with liquid repellent and oil repellent film so as to overcome moisture-related problems more effectively.
    Type: Grant
    Filed: January 18, 2001
    Date of Patent: April 12, 2005
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Takashi Haga, Tadashi Satoh, Hideharu Yamazaki, Takuji Yamamoto
  • Patent number: 6860143
    Abstract: A state determination apparatus for a humidity sensor is provided for accurately determining the state of the humidity sensor, including the responsibility, from a result detected by the sensor itself. The state determining apparatus is configured to determine a humidity sensor arranged in an exhaust system of an internal combustion engine for detecting a humidity within an exhaust pipe. The apparatus comprises an ECU which determines whether or not the internal combustion engine is in a predetermined operating condition, calculates a change state parameter indicative of a change state of a value detected by the humidity sensor based on the detected value of the humidity sensor detected when the internal combustion engine is in the predetermined operating condition, and determines the state of the humidity sensor in accordance with the calculated change state parameter.
    Type: Grant
    Filed: September 3, 2002
    Date of Patent: March 1, 2005
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Hideharu Yamazaki, Masahiro Sato, Kei Machida, Takashi Haga, Masaki Ueno
  • Publication number: 20040237508
    Abstract: A characteristic change of a humidity sensor 19 is detected based on the transitional characteristics of output data of the humidity sensor 19 with respect to integrated moisture quantity data representative of an integrated amount of moisture that is supplied to an HC adsorbent 7 by an exhaust gas after an engine 1 has started to operate. Data of characteristics of an individual unit of the humidity sensor 19 is held by the resistance of a resistive element 21 connected to a connector or the like of the humidity sensor 19. A parameter for grasping a state of the HC adsorbent 7 is corrected depending on the detected characteristic change of the humidity sensor 19 and the characteristics of the individual unit of the humidity sensor 19, and the state of the HC adsorbent 7 is grasped based on the corrected parameter.
    Type: Application
    Filed: April 6, 2004
    Publication date: December 2, 2004
    Inventors: Hideharu Yamazaki, Masahiro Sato, Kei Machida, Tetsuo Endo, Masaki Ueno
  • Patent number: 6823722
    Abstract: An adsorbent state determining apparatus is provided for accurately determining the state of an adsorbent including a deterioration while ensuring elimination of the influence of impurities sticking on a sensor element of a humidity sensor. The adsorbent state determining apparatus determines the state of an adsorbent disposed in an exhaust system of an internal combustion engine for purifying exhaust gases. The adsorbent is capable of adsorbing hydrocarbons and moisture within exhaust gases.
    Type: Grant
    Filed: November 8, 2002
    Date of Patent: November 30, 2004
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Hideharu Yamazaki, Kei Machida, Masaki Ueno
  • Patent number: 6799420
    Abstract: A temperature sensor is disposed near an HC adsorbent in an exhaust system of an internal combustion engine. After the internal combustion engine is shut off, a deteriorated state of the HC adsorbent is evaluated based on a value of the humidity detected by a humidity sensor. The deteriorated state of the HC adsorbent is evaluated by comparing the detected value of the humidity with a threshold established depending on the temperature state near the HC adsorbent. In evaluating deteriorated state of the HC adsorbent, a change in the output characteristics of the humidity sensor depending on its temperature state is compensated for.
    Type: Grant
    Filed: October 11, 2002
    Date of Patent: October 5, 2004
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Masaki Ueno, Tetsuo Endo, Hideharu Yamazaki, Shiro Takakura, Kei Machida, Yasuyuki Miyahara, Tadashi Sato
  • Patent number: 6769417
    Abstract: After an internal combustion engine 1 has started to operate, a changing timing is detected at which a humidity represented by the output signal of a humidity sensor 23 disposed downstream of a hydrocarbon adsorbent 12 changes to a tendency to monotonously increase from a low humidity to a high humidity. Data representing a total amount of moisture carried by an exhaust gas emitted by the internal combustion engine 1 to the hydrocarbon adsorbent 12 up to the changing timing is acquired as a deterioration evaluating parameter. The deteriorated state of the hydrocarbon adsorbent is evaluated based on the deterioration evaluating parameter. The changing timing is detected as a timing at which the relative humidity represented by the output signal of the humidity sensor 23 has changed from a low humidity to a high humidity by a preset value. The preset value is variably set in order to compensate for characteristic changes of the humidity sensor 23 and variations of individual humidity sensors.
    Type: Grant
    Filed: August 5, 2003
    Date of Patent: August 3, 2004
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Masaki Ueno, Hideharu Yamazaki, Tetsuo Endo
  • Publication number: 20040139797
    Abstract: After an internal combustion engine 1 has started to operate, a changing timing is detected at which a humidity represented by the output signal of a humidity sensor 23 disposed downstream of a hydrocarbon adsorbent 12 changes to a tendency to monotonously increase from a low humidity to a high humidity. Data representing a total amount of moisture carried by an exhaust gas emitted by the internal combustion engine 1 to the hydrocarbon adsorbent 12 up to the changing timing is acquired as a deterioration evaluating parameter. The deteriorated state of the hydrocarbon adsorbent is evaluated based on the deterioration evaluating parameter. The changing timing is detected as a timing at which the relative humidity represented by the output signal of the humidity sensor 23 has changed from a low humidity to a high humidity by a preset value. The preset value is variably set in order to compensate for characteristic changes of the humidity sensor 23 and variations of individual humidity sensors.
    Type: Application
    Filed: August 5, 2003
    Publication date: July 22, 2004
    Applicant: HONDA GIKEN KOGYO KABUSHIKI KAISHA
    Inventors: Masaki Ueno, Hideharu Yamazaki, Tetsuo Endo
  • Patent number: 6763655
    Abstract: A catalyst state detector for detecting a state of an exhaust gas purifying catalyst which is capable of accurately detecting the state, including deterioration, of an HC adsorbent contained in the exhaust gas purifying catalyst for adsorbing hydrocarbons in exhaust gases of an internal combustion engine, and can be manufactured at a low cost. The exhaust gas purifying catalyst is arranged at an intermediate portion of an exhaust pipe, and the HC adsorbent is capable of adsorbing hydrocarbons and moisture in exhaust gases. The catalyst state detector comprises a downstream humidity sensor arranged at a location downstream of the HC adsorbent in the exhaust pipe for detecting a humidity of the exhaust gases, and an adsorbent state detecting unit (ECU) for detecting the state of the HC adsorbent in accordance with the result of detection made by the downstream humidity sensor.
    Type: Grant
    Filed: March 5, 2001
    Date of Patent: July 20, 2004
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Masaki Ueno, Shusuke Akazaki, Masahiro Sato, Hideharu Yamazaki, Tetsuo Endo, Yoshihisa Iwaki, Takashi Haga, Tadashi Sato
  • Patent number: 6758038
    Abstract: A temperature estimating apparatus for an internal combustion engine is provided for correctly calculating the temperature of an exhaust device even when the internal combustion engine is started under low temperature conditions. The temperature estimating apparatus comprises an ECU for estimating the temperature of a hydrocarbon adsorbent in an exhaust system of the internal combustion engine through calculations. The ECU calculates an estimated adsorbent temperature of the adsorbent in accordance with an engine rotational speed, an absolute intake pipe inner pressure, an engine water temperature, an intake temperature, and a detected humidity of exhaust gases. This calculation is started when condensation, which has occurred within an intake pipe, is eliminated.
    Type: Grant
    Filed: September 4, 2002
    Date of Patent: July 6, 2004
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Masaki Ueno, Yoshihisa Iwaki, Masahiro Sato, Hideharu Yamazaki
  • Publication number: 20040003723
    Abstract: A hydrocarbon adsorbent state determining apparatus is provided for compensating the ability of a hydrocarbon adsorbent to adsorb moisture for fluctuations due to a change in the flow velocity of exhaust gases to accurately determine the state of the hydrocarbon adsorbent, including a deterioration thereof, irrespective of the change in the flow rate of exhaust gases. The hydrocarbon adsorbent state determining apparatus determines the state of a hydrocarbon adsorbent disposed in an exhaust system of an internal combustion engine for adsorbing hydrocarbons and moisture within exhaust gases.
    Type: Application
    Filed: June 30, 2003
    Publication date: January 8, 2004
    Applicant: HONDA GIKEN KOGYO KABUSHIKI KAISHA
    Inventors: Masaki Ueno, Hideharu Yamazaki, Shiro Takakura, Yasuyuki Miyahara, Tetsuo Endo
  • Patent number: 6641303
    Abstract: There is provided a temperature control system for a humidity sensor, which is capable of eliminating impurities attached to a sensor element of the sensor efficiently and sufficiently while preventing the sensor element from being cracked due to heat generated by a heater in a state of condensation formed thereon, and suppressing attachment of impurities to the sensor element, thereby making it possible to preserve an excellent detection accuracy of the humidity sensor. The temperature control system controls the temperature of the sensor element of the humidity sensor arranged in an exhaust pipe for detecting humidity within the exhaust pipe. A heater heats the sensor element. The temperature of the sensor element is detected. When the detected temperature of the sensor element is higher than a predetermined temperature, said heater is operated.
    Type: Grant
    Filed: August 30, 2002
    Date of Patent: November 4, 2003
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Hideharu Yamazaki, Tadashi Sato, Takashi Haga, Yasuyuki Miyahara, Masaki Ueno, Kei Machida
  • Publication number: 20030115943
    Abstract: A temperature control apparatus for a humidity sensor is provided for preventing impurities from sticking on a sensor element, while protecting the sensor element from cracking due to the humidity sensor heated by a heater in the presence of condensation, to maintain a high detection accuracy of the humidity sensor. The temperature control apparatus is configured to control the temperature of a sensor element of a humidity sensor disposed in an exhaust passage of an internal combustion engine for detecting the humidity within the exhaust passage. The temperature control apparatus comprises a heater for heating the sensor element, a temperature sensor for detecting the temperature of the sensor element, and an ECU for controlling a heating amount of the heater to bring the detected temperature of the sensor element to a first predetermined temperature during an operation of the internal combustion engine.
    Type: Application
    Filed: December 19, 2002
    Publication date: June 26, 2003
    Applicant: HONDA GIKEN KOGYO KABUSHIKI KAISHA
    Inventors: Masaki Ueno, Kei Machida, Tetsuo Endo, Hideharu Yamazaki
  • Publication number: 20030089100
    Abstract: A temperature sensor is disposed near an HC adsorbent in an exhaust system of an internal combustion engine. After the internal combustion engine is shut off, a deteriorated state of the HC adsorbent is evaluated based on a value of the humidity detected by a humidity sensor. The deteriorated state of the HC adsorbent is evaluated by comparing the detected value of the humidity with a threshold established depending on the temperature state near the HC adsorbent. In evaluating deteriorated state of the HC adsorbent, a change in the output characteristics of the humidity sensor depending on its temperature state is compensated for.
    Type: Application
    Filed: October 11, 2002
    Publication date: May 15, 2003
    Inventors: Masaki Ueno, Tetsuo Endo, Hideharu Yamazaki, Shiro Takakura, Kei Machida, Yasuyuki Miyahara, Tadashi Sato
  • Publication number: 20030089165
    Abstract: An adsorbent state determining apparatus is provided for accurately determining the state of an adsorbent including a deterioration while ensuring elimination of the influence of impurities sticking on a sensor element of a humidity sensor. The adsorbent state determining apparatus determines the state of an adsorbent disposed in an exhaust system of an internal combustion engine for purifying exhaust gases. The adsorbent is capable of adsorbing hydrocarbons and moisture within exhaust gases.
    Type: Application
    Filed: November 8, 2002
    Publication date: May 15, 2003
    Applicant: HONDA GIKEN KOGYO KABUSHIKI KAISHA
    Inventors: Hideharu Yamazaki, Kei Machida, Masaki Ueno