Patents by Inventor Tetsuo Yamashita
Tetsuo Yamashita 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: 20240159238Abstract: An air sending device is provided with a cross flow fan including an impeller in which a plurality of blades is arranged annularly. Each of the blades includes a pressure surface, a suction surface, an inner peripheral end face, and an outer peripheral end face. The pressure surface of the blade satisfies the following relationship: a curvature of a second pressure-surface side curved surface>a curvature of a third pressure-surface side curved surface>a curvature of a first pressure-surface side curved surface. When a first, a second, and a third pressure-surface side area of a surface of part of a pressure surface side of the blade are projected on a chord line connecting the inner and outer peripheral end of the blade, a length of the third pressure-surface side area>a length of the first pressure-surface side area>a length of the second pressure-surface side area.Type: ApplicationFiled: May 7, 2021Publication date: May 16, 2024Inventors: Atsushi KONO, Takuya TERAMOTO, Yuki UGAJIN, Koji YAMAGUCHI, Tetsuo YAMASHITA, Takashi IKEDA
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Patent number: 11932182Abstract: A control device includes: an in-vehicle communication unit capable of communicating with an on-vehicle control device; and a control unit configured to control the in-vehicle communication unit. The control unit monitors a power storage amount of an on-vehicle battery during traveling, and executes a charge control for causing the in-vehicle communication unit to transmit an instruction of power generation to an on-vehicle generator that supplies power to the on-vehicle battery, when the power storage amount is reduced to reach a threshold value. The threshold value corresponds to a power amount greater than a necessary power amount required for an update process of a control program in the on-vehicle control device.Type: GrantFiled: January 23, 2019Date of Patent: March 19, 2024Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventor: Tetsuo Yamashita
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Publication number: 20240077214Abstract: An indoor unit includes: a casing that has an air outlet and an air inlet, and inside which an air passage is formed; a cross flow fan disposed in the air passage and configured to blow out, through the air outlet, air sucked in from the air inlet; a stabilizer configured to stabilize vortex of air caused by circulation of air and generated inside the cross flow fan upon rotation thereof; and a guide wall having a surface defining an outlet side air passage being a part of the air passage, the part being in downstream of the cross flow fan, wherein the stabilizer has a first surface that defines a surface opposite to the guide wall in the outlet side air passage, and a part of the outlet side air passage is formed such that a distance in a vertical direction from the first surface to the guide wall gradually decreases toward the downstream.Type: ApplicationFiled: March 19, 2021Publication date: March 7, 2024Inventors: Atsushi KONO, Takuya TERAMOTO, Yuki UGAJIN, Koji YAMAGUCHI, Tetsuo YAMASHITA, Takashi IKEDA
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Patent number: 11909240Abstract: A charging device disclosed herein includes an input port, an output port, and a relay circuit. The input port is electrically connected to an external power source provided externally and that is configured to be able to input direct-current power and alternating-current power from the external power source. The output port is electrically connected to an electrified vehicle and that outputs direct-current power to the electrified vehicle. The relay circuit relays electric power between the input port and the output port. The relay circuit includes a converter circuit that converts alternating-current power into direct-current power when the alternating-current power is input to the input port, and an input bypass circuit that causes direct-current power to bypass the converter circuit when the direct-current power is input to the input port.Type: GrantFiled: June 15, 2022Date of Patent: February 20, 2024Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yoichi Onishi, Tetsuo Yamashita
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Publication number: 20240017631Abstract: An electrified vehicle charging device includes a main body and a charging connection unit. The charging connection unit includes a charging connection part that is attachable to and detachable from the main body, a charging connector that is attachable to and detachable from electrified vehicle, and a charging cable that connects the charging connection part and the charging connector. The charging connection unit includes a circuit for outputting a charging method signal indicating a charging method. When the charging connection part is connected to the main body, the main body receives the charging method signal from the charging connection unit, and supplies power to the charging connection unit in a charging method corresponding to the received charging method signal.Type: ApplicationFiled: May 31, 2023Publication date: January 18, 2024Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yoichi ONISHI, Tetsuo Yamashita
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Patent number: 11594464Abstract: A semiconductor device includes a semiconductor element, a base plate, and a plurality of contact materials. The base plate has a front surface holding the semiconductor element and a rear surface to which a cooling body to cool the semiconductor element is attachable. The plurality of contact materials are discretely arranged on the rear surface of the base plate. The plurality of contact materials are materials for bridging a gap on a heat dissipation path between the base plate and the cooling body. The plurality of contact materials each have a volume based on a bowed shape of the rear surface of the base plate. From among the plurality of contact materials, a contact material at a concave of the bowed shape has a greater volume than a contact material at a convex of the bowed shape.Type: GrantFiled: October 21, 2020Date of Patent: February 28, 2023Assignee: Mitsubishi Electric CorporationInventors: Tetsuo Yamashita, Koichi Masuda, Hiroki Muraoka
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Publication number: 20230031658Abstract: A charging device disclosed herein includes an input port, an output port, and a relay circuit. The input port is electrically connected to an external power source provided externally and that is configured to be able to input direct-current power and alternating-current power from the external power source. The output port is electrically connected to an electrified vehicle and that outputs direct-current power to the electrified vehicle. The relay circuit relays electric power between the input port and the output port. The relay circuit includes a converter circuit that converts alternating-current power into direct-current power when the alternating-current power is input to the input port, and an input bypass circuit that causes direct-current power to bypass the converter circuit when the direct-current power is input to the input port.Type: ApplicationFiled: June 15, 2022Publication date: February 2, 2023Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yoichi Onishi, Tetsuo Yamashita
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Publication number: 20210202342Abstract: A semiconductor device includes a semiconductor element, a base plate, and a plurality of contact materials. The base plate has a front surface holding the semiconductor element and a rear surface to which a cooling body to cool the semiconductor element is attachable. The plurality of contact materials are discretely arranged on the rear surface of the base plate. The plurality of contact materials are materials for bridging a gap on a heat dissipation path between the base plate and the cooling body. The plurality of contact materials each have a volume based on a bowed shape of the rear surface of the base plate. From among the plurality of contact materials, a contact material at a concave of the bowed shape has a greater volume than a contact material at a convex of the bowed shape.Type: ApplicationFiled: October 21, 2020Publication date: July 1, 2021Applicant: Mitsubishi Electric CorporationInventors: Tetsuo YAMASHITA, Koichi MASUDA, Hiroki MURAOKA
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Publication number: 20210094491Abstract: A power supply control device decides, for an on-vehicle control device to which a first power storage device is connected and a second power storage device is connected via a switch, whether or not to use the second power storage device as a power supply for the on-vehicle control device. The power supply control device includes: an acquisition unit configured to acquire an amount of power necessary for the on-vehicle control device to execute an update process for a control program, and a remaining amount of power in the first power storage device; and a decision unit configured to, based on a result of comparison between the necessary amount of power and the remaining amount of power, decide whether or not to use the second power storage device as a power supply for supplying power to the on-vehicle control device that executes the update process.Type: ApplicationFiled: December 10, 2018Publication date: April 1, 2021Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventor: Tetsuo YAMASHITA
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Publication number: 20210046887Abstract: A control device includes: an in-vehicle communication unit capable of communicating with an on-vehicle control device; and a control unit configured to control the in-vehicle communication unit. The control unit monitors a power storage amount of an on-vehicle battery during traveling, and executes a charge control for causing the in-vehicle communication unit to transmit an instruction of power generation to an on-vehicle generator that supplies power to the on-vehicle battery, when the power storage amount is reduced to reach a threshold value. The threshold value corresponds to a power amount greater than a necessary power amount required for an update process of a control program in the on-vehicle control device.Type: ApplicationFiled: January 23, 2019Publication date: February 18, 2021Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventor: Tetsuo YAMASHITA
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Patent number: 10790242Abstract: According to the present invention, a semiconductor device includes a substrate having a metallic pattern formed on a top surface of the substrate, a semiconductor chip provided on the metallic pattern, a back surface electrode terminal in flat plate form connected to the metallic pattern with a wire, a front surface electrode terminal in flat plate form, the front surface electrode terminal being in parallel to the back surface electrode terminal above the back surface electrode terminal, extending immediately above the semiconductor chip, and being directly joined to a top surface of the semiconductor chip, a case surrounding the substrate and a seal material for sealing an inside of the case.Type: GrantFiled: April 16, 2019Date of Patent: September 29, 2020Assignee: Mitsubishi Electric CorporationInventors: Tetsuo Yamashita, Tomohiro Hieda, Masaomi Miyazawa
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Patent number: 10564048Abstract: According to the present invention, a semiconductor device includes a semiconductor chip, resistance of which changes in accordance with temperature, an external resistor connected in series with the semiconductor chip and a detector configured to detect, while a first voltage is applied between both ends of a series circuit formed by the semiconductor chip and the external resistor, a second voltage applied between both ends of the external resistor, wherein the detector calculates a temperature of the semiconductor chip from the second voltage.Type: GrantFiled: February 8, 2019Date of Patent: February 18, 2020Assignee: Mitsubishi Electric CorporationInventors: Tetsuo Yamashita, Tomohiro Hieda, Hiroki Muraoka, Mituharu Tabata, Koichi Masuda
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Patent number: 10544729Abstract: A valve control device controls a valve drive mechanism on the basis of a degree-of-opening signal for a valve and a startup signal for an engine, and includes: a drive signal generating unit that, when it is determined on the basis of the startup signal that the engine is stated, generates a test drive signal for test-driving the valve before the generation of a normal drive signal associated with normal driving of the valve; and an abnormality determining unit that, on the basis of the degree-of-opening signal during the test driving, determines whether or not an abnormality has occurred in the drive mechanism. The drive signal generating unit stops generating the test drive signal and the normal drive signal when the abnormality determining unit determines that the abnormality has occurred in the drive mechanism.Type: GrantFiled: March 24, 2016Date of Patent: January 28, 2020Assignees: KEIHIN CORPORATION, HONDA MOTOR CO., LTD.Inventors: Sachio Hojo, Youichiro Shikine, Tetsuo Yamashita, Shigeki Yoshitake, Kensuke Yamamoto, Akihito Inoue
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Publication number: 20200011743Abstract: According to the present invention, a semiconductor device includes a semiconductor chip, resistance of which changes in accordance with temperature, an external resistor connected in series with the semiconductor chip and a detector configured to detect, while a first voltage is applied between both ends of a series circuit formed by the semiconductor chip and the external resistor, a second voltage applied between both ends of the external resistor, wherein the detector calculates a temperature of the semiconductor chip from the second voltage.Type: ApplicationFiled: February 8, 2019Publication date: January 9, 2020Applicant: Mitsubishi Electric CorporationInventors: Tetsuo YAMASHITA, Tomohiro HIEDA, Hiroki MURAOKA, Mituharu TABATA, Koichi MASUDA
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Patent number: 10429508Abstract: A distance measuring device includes a first measurer, a second distance measurer, and circuitry. The first distance measurer measures a distance to a target object; and outputs first distance information indicating a measured distance when the distance measurement is performed under a condition that satisfies a distance measurement condition, but outputs the first distance information indicating a predetermined value when the distance measurement is performed under a condition that does not satisfy the distance measurement condition. The second distance measurer measures a distance to the target object and outputs second distance information indicating the measured distance. When the first distance information indicates the predetermined value and the second distance information satisfies a predetermined condition, the circuitry makes alteration such that the distance measurement condition is relaxed.Type: GrantFiled: October 25, 2016Date of Patent: October 1, 2019Assignee: RICOH COMPANY, LTD.Inventors: Tetsuo Yamashita, Satoshi Sawaguchi, Fumiko Sakoh, Soichiro Yokota, Kiichiroh Saitoh, Tadashi Nakamura
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Publication number: 20190244913Abstract: According to the present invention, a semiconductor device includes a substrate having a metallic pattern formed on a top surface of the substrate, a semiconductor chip provided on the metallic pattern, a back surface electrode terminal in flat plate form connected to the metallic pattern with a wire, a front surface electrode terminal in flat plate form, the front surface electrode terminal being in parallel to the back surface electrode terminal above the back surface electrode terminal, extending immediately above the semiconductor chip, and being directly joined to a top surface of the semiconductor chip, a case surrounding the substrate and a seal material for sealing an inside of the case.Type: ApplicationFiled: April 16, 2019Publication date: August 8, 2019Applicant: Mitsubishi Electric CorporationInventors: Tetsuo YAMASHITA, Tomohiro HIEDA, Masaomi MIYAZAWA
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Patent number: 10347593Abstract: According to the present invention, a semiconductor device includes a substrate having a metallic pattern formed on a top surface of the substrate, a semiconductor chip provided on the metallic pattern, a back surface electrode terminal in flat plate form connected to the metallic pattern with a wire, a front surface electrode terminal in flat plate form, the front surface electrode terminal being in parallel to the back surface electrode terminal above the back surface electrode terminal, extending immediately above the semiconductor chip, and being directly joined to a top surface of the semiconductor chip, a case surrounding the substrate and a seal material for sealing an inside of the case.Type: GrantFiled: December 14, 2017Date of Patent: July 9, 2019Assignee: Mitsubishi Electric CorporationInventors: Tetsuo Yamashita, Tomohiro Hieda, Masaomi Miyazawa
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Publication number: 20190056662Abstract: Provided is a colored resin composition including a polyhalogenated zinc phthalocyanine, a yellow pigment, a binder resin, and a compound of the following general formula (1). The yellow pigment is a pigment selected from C.I. Pigment Yellow 138 and C.I. Pigment Yellow 185.Type: ApplicationFiled: March 17, 2017Publication date: February 21, 2019Applicant: Toray Industries, Inc.Inventors: Shota Hashimoto, Tetsuo Yamashita, Yasuhiro Kamii, Kenichi Kawabe, Keizo Udagawa
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Publication number: 20180301421Abstract: According to the present invention, a semiconductor device includes a substrate having a metallic pattern formed on a top surface of the substrate, a semiconductor chip provided on the metallic pattern, a back surface electrode terminal in flat plate form connected to the metallic pattern with a wire, a front surface electrode terminal in flat plate form, the front surface electrode terminal being in parallel to the back surface electrode terminal above the back surface electrode terminal, extending immediately above the semiconductor chip, and being directly joined to a top surface of the semiconductor chip, a case surrounding the substrate and a seal material for sealing an inside of the case.Type: ApplicationFiled: December 14, 2017Publication date: October 18, 2018Applicant: Mitsubishi Electric CorporationInventors: Tetsuo YAMASHITA, Tomohiro HIEDA, Masaomi MIYAZAWA
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Patent number: 9991510Abstract: The present invention provides a negative electrode material for a lithium ion secondary battery, a composite negative electrode material for a lithium ion secondary battery, a resin composition for a lithium ion secondary battery negative electrode, and a negative electrode for a lithium ion secondary electrode, which may provide high charge/discharge capacity, and excellent initial charge-discharge characteristics and capacity retention.Type: GrantFiled: June 28, 2013Date of Patent: June 5, 2018Assignee: TORAY INDUSTRIES, INC.Inventors: Tetsuo Yamashita, Natsuko Chayama, Tomoyuki Yuba, Eiichiro Tamaki, Yasuo Kubota, Toshiyuki Nonaka