Patents by Inventor Hiroki Nishijima

Hiroki Nishijima 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: 10622287
    Abstract: A semiconductor package is provided, including: a package body; and a plurality of lead terminals exposed from each of at least three side surfaces of the package body, wherein the plurality of lead terminals include: a plurality of lead terminals exposed from a first side surface, half or more of which have tips pointing in a direction along the first side surface; a plurality of lead terminals exposed from a second side surface, all of which have tips pointing in a direction along a direction orthogonal to the second side surface; and a plurality of lead terminals exposed from a third side surface, half or more of which have tips pointing in a direction along the third side surface, or all of which have tips pointing in a direction along a direction orthogonal to the third side surface.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: April 14, 2020
    Assignee: FUJI ELECTRIC CO., LTD.
    Inventors: Hiroki Kogawa, Takahiro Nishijima, Takashi Katsuki, Tadahiko Sato
  • Publication number: 20190242848
    Abstract: The present disclosure provides a gas sensor element comprising a porous protective layer with improved water repellency upon continuously water pouring, which is a gas sensor element comprising: a detection portion; and a porous protective layer formed around the detection portion, wherein the porous protective layer is formed from an aggregate containing alumina and a coating material containing silica, and in the porous protective layer, the weight concentration x % by weight of the coating material with respect to the total weight of the aggregate and the coating material, and the porosity y %, satisfy the following formula (1): y?0.0058x2-1.2666x+68??(1), and in the porous protective layer, the pore volume of pores having a pore diameter of 100 nm or less is 0.02 mL/g or less.
    Type: Application
    Filed: January 24, 2019
    Publication date: August 8, 2019
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, DENSO CORPORATION
    Inventors: Hiroki NISHIJIMA, Yoshiharu MIYAKE, Haruki KONDO, Yasushi HIRATA, Hirofumi SUZUKI, Kei SUGIURA, Toru TAKEUCHI
  • Patent number: 10371659
    Abstract: A gas sensor element with suppressed response deterioration even when poisoned with S when fuel or exhaust gas contains ethanol and the ethanol content is high. The element includes a detection portion, which includes a solid electrolyte layer having a pair of electrodes on opposite sides thereof, a shielding layer defining a measurement target gas space with a porous diffusive resistance layer, and a reference gas space protective layer; a heat-generating portion stacked on the detection portion; and a porous protective layer surrounding the detection portion and heat-generating portion. The porous protective layer includes a first porous protective layer surrounding at least the porous diffusive resistance layer, and a second porous protective layer surrounding the first porous protective layer, the detection portion and the heat-generating portion. The first porous protective layer contains none of La, Ca, or Mg, while the second porous protective layer contains at least one of them.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: August 6, 2019
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, DENSO CORPORATION
    Inventors: Tetsuya Kato, Satoshi Nakamura, Hiroki Nishijima, Makoto Ito
  • Publication number: 20190218132
    Abstract: A method of manufacturing a glass film includes a forming step of forming a band-shaped glass film by pulling down a glass ribbon flowing down from a forming trough while sandwiching the glass ribbon from both front and back sides through use of roller pairs and a conveyance direction changing step of changing a conveyance direction of the glass film from the vertical direction to the horizontal direction by conveying the glass film along a conveyance path having an arc shape while supporting the glass film from a back surface side with a roller conveyor so that a front surface of the glass film after having passed through the conveyance path faces upward. A first roller to be brought into abutment against the glass film from the front surface side is arranged between a roller pair arranged in a lowermost stage and the roller conveyor.
    Type: Application
    Filed: September 21, 2017
    Publication date: July 18, 2019
    Inventors: Hiroki MORI, Koichi MORI, Takuya SHIOJI, Toshitaka NISHIJIMA
  • Publication number: 20190194055
    Abstract: Provided is a method of manufacturing a glass film, including: a forming step of forming a band-shaped glass film (1); a conveyance direction changing step of changing a conveyance direction of the band-shaped glass film (1) from a vertically downward direction to a horizontal direction by conveying the band-shaped glass film (1) along a curved conveyance path (R1); and a horizontal conveyance step of conveying the band-shaped glass film (1) in the horizontal direction along a horizontal conveyance path (R2), wherein, when some sections of the band-shaped glass film (1) are to be discarded, the method involves: a separating step of separating a discard glass part (1x) from the band-shaped glass film (1) on the horizontal conveyance path (R2); and a discarding step of discarding the separated discard glass part (1x) by causing the discard glass part (1x) to leave the horizontal conveyance path (R2) downward.
    Type: Application
    Filed: September 21, 2017
    Publication date: June 27, 2019
    Inventors: Koichi MORI, Koji NISHIJIMA, Hiroki MORI
  • Publication number: 20190177202
    Abstract: A manufacturing method for a band-shaped glass film (GF) includes use of: a plurality of rollers (10) configured to change a direction of the falling band-shaped glass film (GF) to a horizontal direction; and a first horizontal-conveyance unit (4) configured to convey the band-shaped glass film (GF) in the horizontal direction after the changing of the direction of the band-shaped glass film (GF). After a lower end of the band-shaped glass film (GF) passes through a position between the plurality of rollers (10) being at a retreated position (P2) and the first horizontal-conveyance unit (4), the plurality of rollers (10) are moved from the retreated position (P2) to a regular position (P1) to apply a pressing force to the band-shaped glass film (GF), to thereby cut the band-shaped glass film (GF) along a width direction by bend-breaking.
    Type: Application
    Filed: September 28, 2017
    Publication date: June 13, 2019
    Inventors: Koichi MORI, Koji NISHIJIMA, Hiroki MORI
  • Publication number: 20190139870
    Abstract: A semiconductor package is provided, including: a package body; and a plurality of lead terminals exposed from each of at least three side surfaces of the package body, wherein the plurality of lead terminals include: a plurality of lead terminals exposed from a first side surface, half or more of which have tips pointing in a direction along the first side surface; a plurality of lead terminals exposed from a second side surface, all of which have tips pointing in a direction along a direction orthogonal to the second side surface; and a plurality of lead terminals exposed from a third side surface, half or more of which have tips pointing in a direction along the third side surface, or all of which have tips pointing in a direction along a direction orthogonal to the third side surface.
    Type: Application
    Filed: September 26, 2018
    Publication date: May 9, 2019
    Inventors: Hiroki KOGAWA, Takahiro NISHIJIMA, Takashi KATSUKI, Tadahiko SATO
  • Patent number: 9958412
    Abstract: A gas sensor element having a porous protective layer with excellent water repellency. Provided is a gas sensor element having a detection portion, which has a stack of a solid electrolyte body having a pair of electrodes on opposite sides thereof and a heat generating body including a heat generating source, and a porous protective layer formed around the detection portion. The porous protective layer has thermal conductivity ? in the range of 0.2 to 5 W/mK, and has ?Cp?, which is the product of the thermal conductivity ?(W/mK), density ?(g/m3), and specific heat Cp(J/gK), in the range of 5.3×105 to 2.1×107 WJ/m4K2.
    Type: Grant
    Filed: July 7, 2015
    Date of Patent: May 1, 2018
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, DENSO CORPORATION
    Inventors: Hiroki Nishijima, Yoshiharu Miyake, Haruki Kondo, Makoto Nakae, Tooru Takeuchi, Masayuki Tamura, Atsushi Murai
  • Publication number: 20180017514
    Abstract: A gas sensor element with suppressed response deterioration even when poisoned with S when fuel or exhaust gas contains ethanol and the ethanol content is high. The element includes a detection portion, which includes a solid electrolyte layer having a pair of electrodes on opposite sides thereof, a shielding layer defining a measurement target gas space with a porous diffusive resistance layer, and a reference gas space protective layer; a heat-generating portion stacked on the detection portion; and a porous protective layer surrounding the detection portion and heat-generating portion. The porous protective layer includes a first porous protective layer surrounding at least the porous diffusive resistance layer, and a second porous protective layer surrounding the first porous protective layer, the detection portion and the heat-generating portion. The first porous protective layer contains none of La, Ca, or Mg, while the second porous protective layer contains at least one of them.
    Type: Application
    Filed: February 12, 2016
    Publication date: January 18, 2018
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, DENSO CORPORATION
    Inventors: Tetsuya KATO, Satoshi NAKAMURA, Hiroki NISHIJIMA, Makoto ITO
  • Patent number: 9714913
    Abstract: A control device for an exhaust gas sensor includes first means for estimating a temperature of a sensor element in accordance with impedance of a solid electrolyte, and second means for estimating the temperature of the sensor element in accordance with resistance of a heater. A first element temperature according to impedance of the sensor element in a predetermined detection timing is detected by the first means, and a second element temperature according to resistance of a heater of the sensor element in the predetermined detection timing is detected by the second means. The control device corrects the temperature of the sensor element that is estimated in accordance with heater resistance by the second means in accordance with a difference between the first element temperature and the second element temperature.
    Type: Grant
    Filed: February 14, 2012
    Date of Patent: July 25, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Hiroki Nishijima
  • Patent number: 9702836
    Abstract: An object of the present invention is to reliably detect clogging in a cover even during a period corresponding to a dead zone of a detection apparatus. A PM sensor includes an element section, an element temperature detection section, a heater, and an element cover. An ECU detects clogging in the element cover based on a difference between an element temperature and an exhaust temperature when the exhaust temperature rises. Furthermore, the ECU detects clogging in the element cover based on temperature rising characteristics of the element section observed when the element section is heated by the heater. Thus, even during the period corresponding to the dead zone of the PM sensor, clogging in the element cover can be reliably detected, thus improving the reliability of the sensor.
    Type: Grant
    Filed: September 8, 2010
    Date of Patent: July 11, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Hiroki Nishijima
  • Patent number: 9528424
    Abstract: The invention relates to a malfunction diagnosis device for an exhaust gas purification catalyst of an engine. The device calculates, on the basis of a parameter of the engine other than an output value of a NOx concentration sensor, (a) an estimated NO concentration of the exhaust gas and expected to flow out from the catalyst and (b) an estimated particular component concentration of the exhaust gas and expected to flow out from the catalyst. The device calculates an expected output value such that the expected output value calculated when the influence parameter value is a first value is smaller than the expected output value calculated when the influence parameter value is a second value, the expected output value being an output value which is expected to be output from the sensor when the exhaust gas, which includes NO having the expected NO concentration and the particular component having the expected particular component concentration, reaches the sensor.
    Type: Grant
    Filed: March 1, 2016
    Date of Patent: December 27, 2016
    Assignee: TOYOTA JIDOSHA, KABUSHIKI KAISHA
    Inventors: Keiichiro Aoki, Toyoharu Kaneko, Hiroki Nishijima
  • Patent number: 9523632
    Abstract: A particulate matter sensor comprises an insulating body and a pair of electrodes disposed apart form each other on a main surface of the insulating body. The insulating body includes an insulating portion being equal to or higher than the height of the pair of the electrodes in a direction perpendicular to the main surface, formed on the part where the pair of the electrodes are. In one of the methods for manufacturing the particulate matter sensor, first, an electrode pattern composed of a material for the pair of the electrodes is formed on a body material composing the insulating body, and a mask, having identical pattern of the electrode pattern and composed of material which vaporizes at a temperature equal to or lower than a temperature that the electrode pattern is sintered, is formed on the electrode pattern. A thin film of the material composing the insulating portion is formed, and the electrode pattern and the thin film is sintered to form the electrodes and the insulating portion.
    Type: Grant
    Filed: August 29, 2011
    Date of Patent: December 20, 2016
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroki Nishijima, Tatsuhiro Hashida
  • Publication number: 20160258334
    Abstract: The invention relates to a malfunction diagnosis device for an exhaust gas purification catalyst of an engine. The device calculates, on the basis of a parameter of the engine other than an output value of a NOx concentration sensor, (a) an estimated NO concentration of the exhaust gas and expected to flow out from the catalyst and (b) an estimated particular component concentration of the exhaust gas and expected to flow out from the catalyst. The device calculates an expected output value such that the expected output value calculated when the influence parameter value is a first value is smaller than the expected output value calculated when the influence parameter value is a second value, the expected output value being an output value which is expected to be output from the sensor when the exhaust gas, which includes NO having the expected NO concentration and the particular component having the expected particular component concentration, reaches the sensor.
    Type: Application
    Filed: March 1, 2016
    Publication date: September 8, 2016
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Keiichiro AOKI, Toyoharu KANEKO, Hiroki NISHIJIMA
  • Patent number: 9410493
    Abstract: According to the invention, a particulate matter sensor is installed in an exhaust passage of an internal-combustion engine. A control unit for this internal-combustion engine detects a particulate amount in an exhaust gas through the exhaust passage in response to an output from the particulate matter sensor. Further, the control unit for the internal-combustion engine forms a particulate layer on electrode surfaces of the particulate matter sensor by applying a particulate capturing voltage between the electrodes during a first period. Further, the control unit maintains the formed particulate layer during a second period. It is noted here that the phrase “maintain the formed particulate layer” includes the meanings “maintaining the formed particulate layer as it is” and “inhibiting control to remove the particulate layer”.
    Type: Grant
    Filed: August 4, 2011
    Date of Patent: August 9, 2016
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroki Nishijima, Tatsuhiro Hashida
  • Patent number: 9354154
    Abstract: A porous structure including a pair of electrodes disposed in a flow direction of exhaust gas and a solid electrolyte interposed between the electrodes is arranged in an exhaust passage of an internal combustion engine, and the amount of a particulate matter in exhaust gas is specified based on a potential difference generated between the electrodes.
    Type: Grant
    Filed: June 7, 2011
    Date of Patent: May 31, 2016
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, THE RITSUMEIKAN TRUST
    Inventors: Hiroki Nishijima, Shinji Ikeda, Keiichiro Aoki, Yoshinobu Yoshihara, Yasufumi Nakanishi, Takaya Suzuki
  • Publication number: 20160018357
    Abstract: A gas sensor element having a porous protective layer with excellent water repellency. Provided is a gas sensor element having a detection portion, which has a stack of a solid electrolyte body having a pair of electrodes on opposite sides thereof and a heat generating body including a heat generating source, and a porous protective layer formed around the detection portion. The porous protective layer has thermal conductivity ? in the range of 0.2 to 5 W/mK, and has ?Cpp, which is the product of the thermal conductivity ?(W/mK), density ?(g/m3), and specific heat Cp(J/gK), in the range of 5.3×105 to 2.1×107 WJ/m4K2.
    Type: Application
    Filed: July 7, 2015
    Publication date: January 21, 2016
    Applicants: DENSO CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroki NISHIJIMA, Yoshiharu MIYAKE, Haruki KONDO, Makoto NAKAE, Tooru TAKEUCHI, Masayuki TAMURA, Atsushi MURAI
  • Patent number: 9238986
    Abstract: A control device for an internal combustion engine includes a SCR system disposed in an exhaust passage and a particulate matter sensor disposed downstream of the SCR system. The control device applies a particulate matter trapping voltage to the particulate matter sensor, and acquires an output of the particulate matter sensor at a first timing after the start of application of the particulate matter trapping voltage. The control device executes predetermined control in accordance with the output. If a second timing at which an integrated operating time period of the internal combustion engine in a predetermined operating state in which urea-related substances discharged to downstream of the SCR system increase reaches a reference time period after starting application of the particulate matter trapping voltage is earlier than the first timing, the control device stops the predetermined control.
    Type: Grant
    Filed: November 25, 2011
    Date of Patent: January 19, 2016
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tatsuhiro Hashida, Hiroki Nishijima
  • Patent number: 9217349
    Abstract: An internal combustion engine includes an SCR system disposed on an exhaust passage and a particulate matter sensor disposed downstream of the SCR system, the particulate matter sensor for producing an output that corresponds to an amount of particulate matter deposited on an element section. A control apparatus for the internal combustion engine includes: means for detecting a condition of the element section being deposited with a urea-related substance; and means for controlling to bring a temperature of the element section to a first temperature range when the condition of being deposited with the urea-related substance is detected. The first temperature range is higher than a temperature at which the urea-related substance vaporizes and lower than a temperature at which the particulate matter burns. This prevents the urea-related substance from being deposited on an electrode of the particulate matter sensor and limits variations in an output of the particulate matter sensor.
    Type: Grant
    Filed: October 26, 2011
    Date of Patent: December 22, 2015
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tatsuhiro Hashida, Hiroki Nishijima
  • Patent number: RE47116
    Abstract: A control apparatus for an internal combustion engine detects an amount of particulate matter contained in an exhaust gas in an exhaust passage, according to an electrical property across electrodes of a particulate matter sensor disposed in the exhaust passage of the internal combustion engine. The term “electrical property” here refers to a property that changes with the amount of particulate matter deposited, for example, a current value of when a predetermined voltage is applied. After the internal combustion engine is started and detection of the amount of the particulate matter is completed, an element section of the particulate matter sensor is set to a predetermined temperature range. The particulate matter deposited on the element section is thereby burned and removed. The control apparatus maintains the element section in the predetermined temperature range after burning and removing the particulate matter until the internal combustion engine stops.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: November 6, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Keiichiro Aoki, Hiroki Nishijima