Patents by Inventor Masaaki Taruya
Masaaki Taruya 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: 20220262761Abstract: The semiconductor device includes: a semiconductor element including a body portion formed in a plate shape, a protection film provided at an outer periphery on one surface of the body portion, and a metal thin film provided adjacently to an inner side of the protection film on the one surface of the body portion; a metal member joined to a surface of the metal thin film on a side opposite to the body portion, by solder; and a mold resin sealing the semiconductor element and the metal member, wherein the surface of the metal thin film on the side opposite to the body portion has, on at least a part of an outer periphery thereof, a projection portion projecting from the surface of the metal thin film, and the solder is not provided on an outer peripheral side from a top of the projection portion.Type: ApplicationFiled: July 29, 2021Publication date: August 18, 2022Applicant: Mitsubishi Electric CorporationInventors: Tatsuya KITAGAWA, Shin UEGAKI, Masao AKIYOSHI, Masaaki TARUYA, Dai YOSHII, Kazuhiro TADA
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Patent number: 11293949Abstract: In a current detection apparatus, one or more first plate portions, one or more second plate portions, and one or more third plate portions of one or more magnetic shields are opposed to side surfaces of the one or more protrusions. The one or more protrusions, the one or more magnetic field detection elements, and one or more conductive members are respectively surrounded by the one or more magnetic shields, respectively. Consequently, the current detection apparatus is downsized and has high current detection accuracy.Type: GrantFiled: February 1, 2018Date of Patent: April 5, 2022Assignee: Mitsubishi Electric CorporationInventors: Yosuke Tsuzaki, Shuichi Ueno, Mitsuo Sone, Masaaki Taruya, Yoshiyuki Deguchi
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Publication number: 20200096542Abstract: In a current detection apparatus, one or more first plate portions, one or more second plate portions, and one or more third plate portions of one or more magnetic shields are opposed to side surfaces of the one or more protrusions. The one or more protrusions, the one or more magnetic field detection elements, and one or more conductive members are respectively surrounded by the one or more magnetic shields, respectively. Consequently, the current detection apparatus is downsized and has high current detection accuracy.Type: ApplicationFiled: February 1, 2018Publication date: March 26, 2020Applicant: Mitsubishi Electric CorporationInventors: Yosuke TSUZAKI, Shuichi UENO, Mitsuo SONE, Masaaki TARUYA, Yoshiyuki DEGUCHI
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Patent number: 8597755Abstract: A resin welded body where a first resin part that is absorbent with respect to laser light and a second resin part that is transparent with respect to laser light are fitted together and the laser light is emitted to a predetermined position from the side of the second resin part to weld together the first and the second resin parts and form a joint portion between both resin parts, wherein on either the first or the second resin part there is disposed a projection that comes into contact with the other resin part during the welding and regulates the sinking amount at the joint portion.Type: GrantFiled: August 20, 2007Date of Patent: December 3, 2013Assignee: Mitsubishi Electric CorporationInventors: Seizo Fujimoto, Takafumi Hara, Shinsuke Asada, Hiroshi Kobayashi, Masaaki Taruya
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Patent number: 8292778Abstract: The idle-stop restart control system includes: a sensorless synchronous motor-generator which operates as a generator and a starting motor; an induced-signal detecting circuit for detecting an induced signal output from an armature winding; a field drive circuit for controlling energization of a field winding; and a restart control circuit output, to the field drive circuit, a drive signal for controlling the energization of the field winding to amplify the induced signal while calculating the number of revolutions and an angular position of a rotor based on the detected induced signal when an engine stop command is input and a level of the detected induced signal is equal to or less than a predetermined value and output the drive signal for controlling the energization of the armature winding to restart the engine based on the calculated number of revolutions and angular position of the rotor when a restart command is input.Type: GrantFiled: March 2, 2010Date of Patent: October 23, 2012Assignee: Mitsubishi Electric CorporationInventors: Tetsushi Watanabe, Masaaki Taruya, Katsuya Tsujimoto
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Patent number: 8294402Abstract: A bridge rectifier circuit, which takes control of a current flowing through an armature winding of a motor-generator and a battery, includes rectifier elements each made of a MOSFET; phase current detection means that detect the amount and the direction of current flowing between the drain and the source of the FET; and a control means that takes on/off control of the FET by applying a control voltage between the gate and the source thereof; wherein when the phase current detection means detect a reverse current flowing through the FET exceeding a first predetermined value, the control means applies a control voltage between the gate and the source of the FET so as to turn on the FET.Type: GrantFiled: December 30, 2009Date of Patent: October 23, 2012Assignee: Mitsubishi Electric CorporationInventors: Tetsushi Watanabe, Masaaki Taruya
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Patent number: 8110062Abstract: A welding method and welding apparatus for resin members is provided in which dimensional accuracy of two resin members after welding can be secured and reduction in joining strength due to excessive laser irradiation can be prevented. In a method of superimposing a resin having a laser-transmitting property and a resin having laser absorptiveness and irradiating the resin members with a laser beam from the side of the laser-transmitting resin member to deposit the resin members on each other, irradiation with the laser beam is ended in accordance with reduction in the approaching speed of the two resin members during the irradiation with the laser beam.Type: GrantFiled: April 9, 2008Date of Patent: February 7, 2012Assignee: Mitsubishi Electric CorporationInventors: Shinsuke Asada, Takafumi Hara, Seizo Fujimoto, Masaaki Taruya
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Publication number: 20110049880Abstract: The idle-stop restart control system includes: a sensorless synchronous motor-generator which operates as a generator and a starting motor; an induced-signal detecting circuit for detecting an induced signal output from an armature winding; a field drive circuit for controlling energization of a field winding; and a restart control circuit output, to the field drive circuit, a drive signal for controlling the energization of the field winding to amplify the induced signal while calculating the number of revolutions and an angular position of a rotor based on the detected induced signal when an engine stop command is input and a level of the detected induced signal is equal to or less than a predetermined value and output the drive signal for controlling the energization of the armature winding to restart the engine based on the calculated number of revolutions and angular position of the rotor when a restart command is input.Type: ApplicationFiled: March 2, 2010Publication date: March 3, 2011Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Tetsushi WATANABE, Masaaki TARUYA, Katsuya TSUJIMOTO
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Patent number: 7862874Abstract: A method for producing a welded resin material contains steps of: superimposing a resin member having transmissibility to laser light and a resin member having absorptivity to laser light to form a contact part where the resin members are in contact with each other; forming a closed space that is adjacent to the contact part and faces one end of the contact part; and radiating the laser light from the resin member having transmissibility while pressing the resin members to each other through the contact part, so as to heat the contact part to melt a resin at the contact part, housing a resin excluded from the contact part through melting in the closed space, solidifying the resin melted at the contact part to weld the resin members.Type: GrantFiled: October 5, 2007Date of Patent: January 4, 2011Assignee: Mitsubishi Electric CorporationInventors: Shinsuke Asada, Takafumi Hara, Seizo Fujimoto, Masaaki Taruya
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Publication number: 20100301791Abstract: A bridge rectifier circuit, which takes control of a current flowing through an armature winding of a motor-generator and a battery, includes rectifier elements each made of a MOSFET; phase current detection means that detect the amount and the direction of current flowing between the drain and the source of the FET; and a control means that takes on/off control of the FET by applying a control voltage between the gate and the source thereof; wherein when the phase current detection means detect a reverse current flowing through the FET exceeding a first predetermined value, the control means applies a control voltage between the gate and the source of the FET so as to turn on the FET.Type: ApplicationFiled: December 30, 2009Publication date: December 2, 2010Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Tetsushi WATANABE, Masaaki Taruya
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Patent number: 7603908Abstract: A semiconductor pressure sensor is provided with a semiconductor pressure sensor part that converts a pressure to an electrical signal, a sensor module in which said semiconductor pressure sensor part and a terminal of which part is extended to the outside are insert-molded with a first resin, and an outer case in which said sensor module is contained, and said sensor module is further insert-molded with a second resin to form a connector portion, and the semiconductor pressure sensor is characterized in that the exposed portion of the sensor module from the second resin, and the boundary between the exposed portion of the sensor module and the second resin are covered with an adhesive.Type: GrantFiled: March 11, 2008Date of Patent: October 20, 2009Assignee: Mitsubishi Electric CorporationInventors: Shinsuke Asada, Hiroshi Nakamura, Masaaki Taruya
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Patent number: 7562582Abstract: An SOI substrate includes a thin diaphragm portion that is formed by removing a portion of the substrate from a rear surface side, and a thick outer frame portion that surrounds the diaphragm portion. A piezoresistive element that outputs an electrical signal in response to pressure is formed on the diaphragm portion, and an electrode that extracts the electrical signal from the piezoresistive element is formed on the outer frame portion. The electrode is disposed at a position on the outer frame portion that is separated by greater than or equal to 100 ?m from a boundary line between the diaphragm portion and the outer frame portion.Type: GrantFiled: April 18, 2007Date of Patent: July 21, 2009Assignee: Mitsubishi Electric CorporationInventors: Eiji Yoshikawa, Masaaki Taruya
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Publication number: 20090126869Abstract: A welding method and welding apparatus for resin members is provided in which dimensional accuracy of two resin members after welding can be secured and reduction in joining strength due to excessive laser irradiation can be prevented. In a method of superimposing a resin having a laser-transmitting property and a resin having laser absorptiveness and irradiating the resin members with a laser beam from the side of the laser-transmitting resin member to deposit the resin members on each other, irradiation with the laser beam is ended in accordance with reduction in the approaching speed of the two resin members during the irradiation with the laser beam.Type: ApplicationFiled: April 9, 2008Publication date: May 21, 2009Applicant: Mitsubishi Electric CorporationInventors: Shinsuke ASADA, Takafumi HARA, Seizo FUJIMOTO, Masaaki TARUYA
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Publication number: 20080261065Abstract: A resin welded body where a first resin part that is absorbent with respect to laser light and a second resin part that is transparent with respect to laser light are fitted together and the laser light is emitted to a predetermined position from the side of the second resin part to weld together the first and the second resin parts and form a joint portion between both resin parts, wherein on either the first or the second resin part there is disposed a projection that comes into contact with the other resin part during the welding and regulates the sinking amount at the joint portion.Type: ApplicationFiled: August 20, 2007Publication date: October 23, 2008Applicant: Mitsubishi Electric CorporationInventors: Seizo Fujimoto, Takafumi Hara, Shinsuke Asada, Hiroshi Kobayashi, Masaaki Taruya
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Publication number: 20080254242Abstract: A method for producing a welded resin material contains steps of: superimposing a resin member having transmissibility to laser light and a resin member having absorptivity to laser light to form a contact part where the resin members are in contact with each other; forming a closed space that is adjacent to the contact part and faces one end of the contact part; and radiating the laser light from the resin member having transmissibility while pressing the resin members to each other through the contact part, so as to heat the contact part to melt a resin at the contact part, housing a resin excluded from the contact part through melting in the closed space, solidifying the resin melted at the contact part to weld the resin members.Type: ApplicationFiled: October 5, 2007Publication date: October 16, 2008Applicant: Mitsubishi Electric CorporationInventors: Shinsuke ASADA, Takafumi Hara, Seizo Fujimoto, Masaaki Taruya
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Patent number: 7412895Abstract: A semiconductor pressure sensor is provided with a semiconductor pressure sensor part that converts a pressure to an electrical signal, a sensor module in which said semiconductor pressure sensor part and a terminal of which part is extended to the outside are insert-molded with a first resin, and an outer case in which said sensor module is contained, and said sensor module is further insert-molded with a second resin to form a connector portion, and the semiconductor pressure sensor is characterized in that the exposed portion of the sensor module from the second resin, and the boundary between the exposed portion of the sensor module and the second resin are covered with an adhesive.Type: GrantFiled: September 22, 2006Date of Patent: August 19, 2008Assignee: Mitsubishi Electric Corp.Inventors: Shinsuke Asada, Hiroshi Nakamura, Masaaki Taruya
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Publication number: 20080178681Abstract: A semiconductor pressure sensor is provided with a semiconductor pressure sensor part that converts a pressure to an electrical signal, a sensor module in which said semiconductor pressure sensor part and a terminal of which part is extended to the outside are insert-molded with a first resin, and an outer case in which said sensor module is contained, and said sensor module is further insert-molded with a second resin to form a connector portion, and the semiconductor pressure sensor is characterized in that the exposed portion of the sensor module from the second resin, and the boundary between the exposed portion of the sensor module and the second resin are covered with an adhesive.Type: ApplicationFiled: March 11, 2008Publication date: July 31, 2008Inventors: Shinsuke ASADA, Hiroshi Nakamura, Masaaki Taruya
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Patent number: 7391101Abstract: A semiconductor pressure sensor can reduce the damage of bonding wires to increase their life time even under an environment in which the temperature and pressure change rapidly and radically. The semiconductor pressure sensor includes a package (1) made of a resin and having a concave portion (1a), a lead (2) formed integral with the package (1) by insert molding, with its one end exposed into the concave portion (1a) and its other end extended from the package (1) to the outside, a sensor chip (3) arranged in the concave portion (1a) for detecting pressure, and a bonding wire (4) electrically connecting the sensor chip (3) and the lead (2) with each other. An interface between the lead (2) and the package (1) on the side of the concave portion (1a) is covered with a first protective resin portion (6) of electrically insulating property, and the bonding wire (4) is covered with a second protective resin portion (7) that is softer than the first protective resin portion (6).Type: GrantFiled: November 28, 2005Date of Patent: June 24, 2008Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Yoshimitsu Takahata, Hiroshi Nakamura, Masaaki Taruya, Shinsuke Asada
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Publication number: 20080094167Abstract: An SOI substrate includes a thin diaphragm portion that is formed by removing a portion of the substrate from a rear surface side, and a thick outer frame portion that surrounds the diaphragm portion. A piezoresistive element that outputs an electrical signal in response to pressure is formed on the diaphragm portion, and an electrode that extracts the electrical signal from the piezoresistive element is formed on the outer frame portion. The electrode is disposed at a position on the outer frame portion that is separated by greater than or equal to 100 ?m from a boundary line between the diaphragm portion and the outer frame portion.Type: ApplicationFiled: April 18, 2007Publication date: April 24, 2008Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Eiji Yoshikawa, Masaaki Taruya
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Publication number: 20070193359Abstract: A semiconductor pressure sensor is provided with a semiconductor pressure sensor part that converts a pressure to an electrical signal, a sensor module in which said semiconductor pressure sensor part and a terminal of which part is extended to the outside are insert-molded with a first resin, and an outer case in which said sensor module is contained, and said sensor module is further insert-molded with a second resin to form a connector portion, and the semiconductor pressure sensor is characterized in that the exposed portion of the sensor module from the second resin, and the boundary between the exposed portion of the sensor module and the second resin are covered with an adhesive.Type: ApplicationFiled: August 22, 2006Publication date: August 23, 2007Inventors: Shinsuke Asada, Hiroshi Nakamura, Masaaki Taruya