Patents by Inventor Teruyoshi Mihara
Teruyoshi Mihara 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).
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Publication number: 20220328449Abstract: Provided is a method that allows for firm joining of power module components even if a joining area is large. The method includes: forming an oxygen ion conductor layer on a surface of one of a first member to be joined containing metal and a second member to be joined containing ceramic; arranging the first member to be joined and the second member to be joined so that they are in contact with each other via the oxygen ion conductor layer; connecting the first member to be joined to one of a positive electrode side and a negative electrode side of a voltage application device and the second member to be joined to the other; and applying a voltage between the first member to be joined and the second member to be joined to join the first member to be joined and the second member to be joined together.Type: ApplicationFiled: May 29, 2020Publication date: October 13, 2022Inventor: Teruyoshi Mihara
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Patent number: 11453294Abstract: A motor is stably driven under an extremely low temperature. A control unit controls an inverter to extract a pulse-like direct current from a battery, in case where a temperature Temp of the battery is below a predetermined value TH at which a power that can drive a motor is continuously extractable, by cyclically repeating an on-period to extract the direct current that can drive the motor from the battery and an off-period in which, after the on-period, the power is not extracted from the battery until the direct current that can drive the motor becomes extractable from the battery again. The inverter converts, to a phase current, the direct current extracted from the battery in the on-period.Type: GrantFiled: March 23, 2020Date of Patent: September 27, 2022Assignee: Marelli CorporationInventor: Teruyoshi Mihara
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Publication number: 20220169575Abstract: A method allows for firm joining of power module components even if a joining area is large. The method includes: forming an oxygen ion conductor layer on a surface of one of a first member to be joined containing metal and a second member to be joined containing ceramic and a metal plating layer on a surface of the other; arranging them so that they are in contact with each other; connecting one of the first member to be joined and the second member to be joined on which the metal plating layer is provided to the negative electrode side of the voltage application device and the other to the positive electrode side; and applying a voltage between the first member to be joined and the second member to be joined to join them together.Type: ApplicationFiled: February 17, 2022Publication date: June 2, 2022Inventor: Teruyoshi Mihara
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Publication number: 20220173606Abstract: A state estimation unit estimates an OCV upon charging a battery. Pulse charging units applies a charging pulse voltage to the battery when the OCV is larger than a first predetermined value. The state estimation unit estimates the OCV by sequentially calculating a coefficient of a transmission function based on an equivalent circuit model of the battery each time the pulse charging units apply the charging pulse voltage. The pulse charging units compare the OCV to a second predetermined value that is larger than the first predetermined value. The pulse charging units determine to apply the next pulse voltage in the pulse charging units when the estimated OCV is smaller than the second predetermined value, and determine to end charging the battery when the OCV is larger than the second predetermined value.Type: ApplicationFiled: March 25, 2020Publication date: June 2, 2022Inventor: Teruyoshi Mihara
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Patent number: 11239493Abstract: A method for bonding a solid electrolyte layer and electrodes used a fuel cell includes: laminating the solid electrolyte layer and the electrodes so that the electrodes sandwich the solid electrolyte layer therebetween; applying a first voltage of a first polarity between the electrodes sandwiching the solid electrolyte layer; and applying a second voltage of a second polarity that is the reverse of the first polarity between the electrodes sandwiching the solid electrolyte layer.Type: GrantFiled: November 14, 2017Date of Patent: February 1, 2022Assignee: Marelli CorporationInventors: Teruyoshi Mihara, Tomihito Hashimoto
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Publication number: 20200406776Abstract: An energy management system comprises a battery, a heat storage unit, a cold storage unit and a control device. The control device distributes electric power (electric energy) inputted into the energy management system 1 among the battery, the heat storage unit and the cold storage unit by referring to a charging state (SOC and SOP) of the battery, a heat storage state to the heat storage unit and a cold storage state to the cold storage unit. The inputted electric energy is converted into chemical energy to be stored in the battery, and on the other hand, is converted into thermal energy to be stored in the heat storage unit and the cold storage unit.Type: ApplicationFiled: September 28, 2018Publication date: December 31, 2020Inventor: Teruyoshi Mihara
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Publication number: 20200346432Abstract: A bonding method in which more variety of materials can be bonded than a conventional anodic bonding method includes: a disposing step of disposing an oxygen ion conductor and a bonded material to be bonded to the oxygen ion conductor such that they are brought in contact with each other; a connecting step of connecting the oxygen ion conductor to a negative side of a voltage application device and connecting the bonded material to a positive side of the voltage application device; and a voltage applying step of applying a voltage between the oxygen ion conductor and the bonded material so as to bond the oxygen ion conductor and the bonded material, wherein abutting surfaces of the oxygen ion conductor and the bonded material are processed such that they are in close contact with each other.Type: ApplicationFiled: July 4, 2018Publication date: November 5, 2020Inventors: Teruyoshi Mihara, Tomihito Hashimoto, Yuusuke Nakata, Motoki Kurasawa
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Publication number: 20200346433Abstract: A bonding method is capable of firmly bonding a greater variety of materials using an electrochemical reaction. The bonding method includes a placement step of placing an oxygen ion conductor and a conductive member that includes an oxide layer on a surface thereof in contact with each other via the oxide layer, a connection step of connecting the oxygen ion conductor to the positive electrode side of a voltage application device and connecting the conductive member to the negative electrode side of the voltage application device, and a voltage application step of applying voltage between the oxygen ion conductor and the conductive member to bond the oxygen ion conductor and the conductive member.Type: ApplicationFiled: July 4, 2018Publication date: November 5, 2020Inventors: Teruyoshi Mihara, Tomihito Hashimoto, Yuusuke Nakata, Motoki Kurasawa
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Publication number: 20200307389Abstract: A motor is stably driven under an extremely low temperature. A control unit controls an inverter to extract a pulse-like direct current from a battery, in case where a temperature Temp of the battery is below a predetermined value TH at which a power that can drive a motor is continuously extractable, by cyclically repeating an on-period to extract the direct current that can drive the motor from the battery and an off-period in which, after the on-period, the power is not extracted from the battery until the direct current that can drive the motor becomes extractable from the battery again. The inverter converts, to a phase current, the direct current extracted from the battery in the on-period.Type: ApplicationFiled: March 23, 2020Publication date: October 1, 2020Inventor: Teruyoshi Mihara
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Publication number: 20200036036Abstract: A method for bonding a solid electrolyte layer and electrodes used a fuel cell includes: laminating the solid electrolyte layer and the electrodes so that the electrodes sandwich the solid electrolyte layer therebetween; applying a first voltage of a first polarity between the electrodes sandwiching the solid electrolyte layer; and applying a second voltage of a second polarity that is the reverse of the first polarity between the electrodes sandwiching the solid electrolyte layer.Type: ApplicationFiled: November 14, 2017Publication date: January 30, 2020Inventors: Teruyoshi MIHARA, Tomihito HASHIMOTO
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Publication number: 20080098973Abstract: The disclosure relates to a photoconductive ignition system including a photoconductor configured to contact an oxidant-fuel gas mixture, and a light source providing irradiating light to a surface of the photoconductor. The photoconductor absorbs at least some of the light from the light source, which causes a variation in electrical potential at the surface of the photoconductor, thereby igniting the oxidant-fuel gas mixture. The disclosure further relates to a method of activating an oxidant-fuel gas mixture by exposing a photoconductor surface to the gas mixture and irradiating the surface with a light source emitting light at a wavelength corresponding to an energy level greater than a band gap energy level of the photoconductor, thereby activating the gas mixture in a combustion reaction.Type: ApplicationFiled: March 17, 2006Publication date: May 1, 2008Applicant: NISSAN MOTOR CO., LTD.Inventors: Yusuke Niwa, Kenjiro Matsushita, Teruyoshi Mihara, Kohji Masuda, Hiroyuki Kaneko, Norihiko Kiritani
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Patent number: 7217950Abstract: The present invention-provides a tunnel-injection device which encompasses, a reception layer made of a first semiconductor, a barrier-forming layer made of a second semiconductor having a bandgap-narrower than the first semiconductor, being in metallurgical contact with the reception layer, a gate insulating film disposed on the barrier-forming layer. The gate electrode controls the width of the barrier generated at the heterojunction interface between the reception layer and the barrier-forming layer so as to change the tunneling probability of carriers through the barrier. The device further encompasses a carrier receiving region being contact with the reception layer and a carrier-supplying region being contact with the barrier-forming layer.Type: GrantFiled: October 10, 2003Date of Patent: May 15, 2007Assignee: Nissan Motor Co., Ltd.Inventors: Saichirou Kaneko, Masakatsu Hoshi, Kraisorn Throngnumchai, Tetsuya Hayashi, Hideaki Tanaka, Teruyoshi Mihara
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Patent number: 7183575Abstract: A high reverse voltage diode includes a hetero junction made up from a silicon carbide base layer, which constitutes a first semiconductor base layer, and a polycrystalline silicon layer, which constitutes a second semiconductor layer, and whose band gap is different from that of the silicon carbide base layer. A low concentration N type polycrystalline silicon layer is deposited on a first main surface side of the silicon carbide base layer, and a metal electrode is formed on a second main surface side of the silicon carbide base layer which is opposite to the first main surface side thereof.Type: GrantFiled: February 19, 2003Date of Patent: February 27, 2007Assignee: Nissan Motor Co., Ltd.Inventors: Yoshio Shimoida, Saichirou Kaneko, Hideaki Tanaka, Masakatsu Hoshi, Kraisom Throngnumchai, Teruyoshi Mihara, Tetsuya Hayashi
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Publication number: 20040079989Abstract: The present invention-provides a tunnel-injection device which encompasses, a reception layer made of a first semiconductor, a barrier-forming layer made of a second semiconductor having a bandgap-narrower than the first semiconductor, being in metallurgical contact with the reception layer, a gate insulating film disposed on the barrier-forming layer. The gate electrode controls the width of the barrier generated at the heterojunction interface between the reception layer and the barrier-forming layer so as to change the tunneling probability of carriers through the barrier. The device further encompasses a carrier receiving region being contact with the reception layer and a carrier-supplying region being contact with the barrier-forming layer.Type: ApplicationFiled: October 10, 2003Publication date: April 29, 2004Applicant: NISSAN MOTOR CO., LTD.Inventors: Saichirou Kaneko, Masakatsu Hoshi, Kraisorn Throngnumchai, Tetsuya Hayashi, Hideaki Tanaka, Teruyoshi Mihara
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Publication number: 20040031971Abstract: A high reverse voltage diode includes a hetero junction made up from a silicon carbide base layer, which constitutes a first semiconductor base layer, and a polycrystalline silicon layer, which constitutes a second semiconductor layer, and whose band gap is different from that of the silicon carbide base layer. A low concentration N type polycrystalline silicon layer is deposited on a first main surface side of the silicon carbide base layer, and a metal electrode is formed on a second main surface side of the silicon carbide base layer which is opposite to the first main surface side thereof.Type: ApplicationFiled: February 19, 2003Publication date: February 19, 2004Inventors: Yoshio Shimoida, Saichirou Kaneko, Hideaki Tanaka, Masakatsu Hoshi, Kraisorn Throngnumchai, Teruyoshi Mihara, Tetsuya Hayashi
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Patent number: 5682048Abstract: A semiconductor structure having a plurality of drivers in and on the same semiconductor substrate is arranged to increase the density of integrated components and reduce the on resistance. The semiconductor structure employs a double layer interconnection structure having source and drain electrodes at two different levels, and an insulated gate electrode in a groove formed the semiconductor substrate. Each drain lead region having a low resistivity material extends from the upper surface of the substrate to a low resistivity buried layer. Each drain opening is surrounded by a source zone formed with a series of source holes or a long and narrow source slot, and this basic pattern is regularly repeated in a plane.Type: GrantFiled: May 17, 1996Date of Patent: October 28, 1997Assignee: Nissan Motor Co., Ltd.Inventors: Toshiro Shinohara, Masakatsu Hoshi, Teruyoshi Mihara
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Patent number: 5675169Abstract: A semiconductor device having a surge input detecting circuit is provided with the driving circuit for, for example, reversible motor. To prevent MOS power transistors constituting the power driving circuit from their destructive breakdowns (failures), when the surge input detecting circuit block detects the surge voltage input through the driving circuit which exceeds a predetermined voltage, namely, a maximum rated power supply voltage of the power driving circuit, the surge input detecting circuit outputs the signal to turn the MOS power transistors in off-states. These circuit elements are integrally mounted on a semiconductor chip. The surge input detecting circuit block detects such a surge input through a power supply terminal in terms of either of its voltage, its current, or the temperature rise in the semiconductor chip. The breakdown voltage per power transistor can be half the maximum rated power supply voltage.Type: GrantFiled: May 26, 1995Date of Patent: October 7, 1997Assignee: Nissan Motor Co., Ltd.Inventors: Masakatsu Hoshi, Teruyoshi Mihara, Kraisorn Throngnumchai
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Patent number: 5635742Abstract: A lateral double-diffused MOSFET has a semiconductor substrate, a drain region formed on the substrate, a gate insulation film formed on the drain region, a gate electrode formed on the gate insulation film, source and drain openings formed through the gate electrode, a first conductive region formed under the drain region, a source electrode formed on the source openings, a drain electrode formed on the drain openings, and second conductive regions for connecting the drain electrode to the first conductive region. The source and drain openings are cyclically arranged so that at least two rows of source openings are arranged between adjacent drain openings, to reduce the ON resistance of the MOSFET.Type: GrantFiled: June 3, 1996Date of Patent: June 3, 1997Assignee: Nissan Motor Co., Ltd.Inventors: Masakatsu Hoshi, Teruyoshi Mihara
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Patent number: 5629704Abstract: In a radar target position detecting apparatus, beams (, for example, light beams) irradiated from a transmitter(, for example, LED) have a predetermined divergence angle, a plurality of light (beam) receiving elements such as photodiode arrays each having a different receiving angle (directivity) are arranged in an array form, and a direction of a reflected wave (beam) is identified according to a position of the arrayed beam (wave) receiving elements in the array at which the reflected wave (beam) is captured.Type: GrantFiled: September 12, 1995Date of Patent: May 13, 1997Assignee: Nissan Motor Co., Ltd.Inventors: Kraisorn Throngnumchai, Teruyoshi Mihara, Hiroshige Fukuhara, Yukitsugu Hirota
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Patent number: RE35405Abstract: A method of manufacturing semiconductor devices by forming a U-shaped insulated gate on a substrate, etching the substrate to expose a sidewall of the U-shaped insulated gate, covering the exposed part with a masking material, forming the sidewall of the masking material only adjoining to the exposed U-shaped insulated gate, etching the substrate vertically to form a groove, forming a semiconductor region on the groove and burying a metal into the groove.Type: GrantFiled: August 12, 1994Date of Patent: December 17, 1996Assignee: Nissan Motor Co., Ltd.Inventors: Yoshinori Murakami, Teruyoshi Mihara