Patents by Inventor Hidetomo Nakagawa
Hidetomo Nakagawa 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: 20250006095Abstract: A display device with a narrower frame can be provided. In the display device, a first layer, a second layer, and a third layer are provided to be stacked. The first layer includes a gate driver circuit and a data driver circuit, the second layer includes a demultiplexer circuit, and the third layer includes a display portion. In the display portion, pixels are arranged in a matrix, an input terminal of the demultiplexer circuit is electrically connected to the data driver circuit, and an output terminal of the demultiplexer circuit is electrically connected to some of the pixels. The gate driver circuit and the data driver circuit are provided to include a region overlapping some of the pixels. The gate driver circuit and the data driver circuit have a region where they are not strictly separated from each other and overlap each other. Five or more gate driver circuits and five or more data driver circuits can be provided.Type: ApplicationFiled: June 27, 2024Publication date: January 2, 2025Inventors: Takashi NAKAGAWA, Takayuki IKEDA, Hidetomo KOBAYASHI, Hideaki SHISHIDO, Shuichi KATSUI, Kiyotaka KIMURA
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Patent number: 11391521Abstract: A heat exchanger, a heat exchanger unit, and a refrigeration cycle apparatus are provided where heat exchange performance is improved, and drainage properties and resistance against frost formation are improved. A flat tube and a plurality of fins that are each a plate having a plate surface extending in a longitudinal direction and in a width direction orthogonal to the longitudinal direction are provided. The plate surface intersects a pipe axis of the flat tube, and the plurality of fins are arranged at an interval from one another. The plurality of fins each have a first spacer formed in the plate and maintaining the interval. The flat tube has a longitudinal axis of a section perpendicular to the pipe axis, and the longitudinal axis is inclined to the width direction by an inclination angle ?. The first spacer has a standing surface extending in a direction intersecting the plate surface.Type: GrantFiled: June 13, 2018Date of Patent: July 19, 2022Assignee: Mitsubishi Electric CorporationInventors: Akira Yatsuyanagi, Tsuyoshi Maeda, Tomohiko Takahashi, Yoshihide Asai, Hidetomo Nakagawa
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Patent number: 11384997Abstract: A heat exchanger, a heat exchanger unit, and a refrigeration cycle apparatus are provided where deterioration in drainage and ventilation properties is prevented, an air passage is not easily clogged when frost forms, and both defrosting properties and heat exchange performance are achieved. A flat tube and a plurality of fins that are each a plate having a plate surface extending in a longitudinal direction and in a width direction orthogonal to the longitudinal direction are provided. The plate surface intersects a pipe axis of the flat tube. The plurality of fins each have an insertion portion in which the flat tube is inserted, a first spacer formed at a rim of the insertion portion and maintaining the interval, and a second spacer formed at a portion of the plate other than the rim of the insertion portion and maintaining the interval.Type: GrantFiled: June 13, 2018Date of Patent: July 12, 2022Assignee: Mitsubishi Electric CorporationInventors: Tsuyoshi Maeda, Akira Yatsuyanagi, Tomohiko Takahashi, Yoshihide Asai, Hidetomo Nakagawa
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Patent number: 11353272Abstract: A heat exchanger, a heat exchanger unit, and a refrigeration cycle apparatus are provided where heat exchange performance is improved, and drainage properties and resistance against frost formation are improved. A flat tube and a plurality of fins that are each a plate having a plate surface extending in a longitudinal direction and in a width direction orthogonal to the longitudinal direction are provided. The plate surface intersects a pipe axis of the flat tube, and the plurality of fins are arranged at an interval from one another. The plurality of fins each have a first spacer formed in the plate and maintaining the interval. The flat tube has a longitudinal axis of a section perpendicular to the pipe axis, and the longitudinal axis is inclined to the width direction by an inclination angle ?. The first spacer has a standing surface extending in a direction intersecting the plate surface.Type: GrantFiled: June 13, 2018Date of Patent: June 7, 2022Assignee: Mitsubishi Electric CorporationInventors: Akira Yatsuyanagi, Tsuyoshi Maeda, Tomohiko Takahashi, Yoshihide Asai, Hidetomo Nakagawa
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Publication number: 20210239409Abstract: A heat exchanger, a heat exchanger unit, and a refrigeration cycle apparatus are provided where heat exchange performance is improved, and drainage properties and resistance against frost formation are improved. A flat tube and a plurality of fins that are each a plate having a plate surface extending in a longitudinal direction and in a width direction orthogonal to the longitudinal direction are provided. The plate surface intersects a pipe axis of the flat tube, and the plurality of fins are arranged at an interval from one another. The plurality of fins each have a first spacer formed in the plate and maintaining the interval. The flat tube has a longitudinal axis of a section perpendicular to the pipe axis, and the longitudinal axis is inclined to the width direction by an inclination angle ?. The first spacer has a standing surface extending in a direction intersecting the plate surface.Type: ApplicationFiled: June 13, 2018Publication date: August 5, 2021Inventors: Akira YATSUYANAGI, Tsuyoshi MAEDA, Tomohiko TAKAHASHI, Yoshihide ASAI, Hidetomo NAKAGAWA
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Publication number: 20210180878Abstract: A heat exchanger, a heat exchanger unit, and a refrigeration cycle apparatus are provided where deterioration in drainage and ventilation properties is prevented, an air passage is not easily clogged when frost forms, and both defrosting properties and heat exchange performance are achieved. A flat tube and a plurality of fins that are each a plate having a plate surface extending in a longitudinal direction and in a width direction orthogonal to the longitudinal direction are provided. The plate surface intersects a pipe axis of the flat tube. The plurality of fins each have an insertion portion in which the flat tube is inserted, a first spacer formed at a rim of the insertion portion and maintaining the interval, and a second spacer formed at a portion of the plate other than the rim of the insertion portion and maintaining the interval.Type: ApplicationFiled: June 13, 2018Publication date: June 17, 2021Inventors: Tsuyoshi MAEDA, Akira YATSUYANAGI, Tomohiko TAKAHASHI, Yoshihide ASAI, Hidetomo NAKAGAWA
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Patent number: 10767656Abstract: In an axial flow fan according to the present invention, a plurality of blades rotate about a rotation axis of the blades to convey a fluid. In the axial flow fan, the plurality of blades each have a leading edge at a leading side in a rotational direction, a trailing edge at a trailing side in the rotational direction, and an outer peripheral edge connecting the leading edge and the trailing edge. The leading edge of one of the plurality of blades and the trailing edge of another blade adjacent to the leading edge of the blade in the rotational direction are connected by a plate-shaped connection portion. The plurality of blades each have at least one plate-shaped reinforcement rib extending from a periphery of the rotation axis toward the outer peripheral edge of the blade.Type: GrantFiled: August 3, 2015Date of Patent: September 8, 2020Assignee: Mitsubishi Electric CorporationInventors: Shingo Hamada, Koji Sachimoto, Yosuke Kikuchi, Hajime Ikeda, Takashi Kobayashi, Seiji Hirakawa, Hiroshi Yoshikawa, Hidetomo Nakagawa, Hiroaki Makino
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Publication number: 20200158353Abstract: An air-conditioning outdoor unit includes a compressor having a plurality of terminals each including a plurality of conductive pins. The outdoor unit includes a plurality of lead wire groups provided for the respective terminals and each including a plurality of lead wires connecting a control board to the plurality of conductive pins, and a plurality of different end connectors provided for the respective lead wire groups and each attached to an end portion of the lead wire group adjacent to the plurality of conductive pins. The lead wire groups are each connected by the end connector to the plurality of conductive pins and cut into two parts at a given point in a longitudinal direction. The two parts of the lead wire group are detachably coupled together at the given point by a pair of relay connectors. A length from the control board to the given point and a length from the given point to the end connector differ from one lead wire group to another.Type: ApplicationFiled: February 13, 2018Publication date: May 21, 2020Inventors: Hidetomo NAKAGAWA, Akinori SAKABE, Toshiyuk KUBONO, Hiroyuki JINNAI
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Publication number: 20190178507Abstract: An outdoor unit for an air-conditioning apparatus includes a heat exchanger including a plurality of heat exchanger units. The plurality of heat exchanger units are vertically stacked and each include a long side portion, a short side portion, and a corner portion bent and connecting the long side portion and the short side portion to each other. In the heat exchanger, deviation in an air flow direction that lies between ones of the plurality of heat exchanger units that are vertically adjacent to each other is larger at the short side portions than at the long side portions.Type: ApplicationFiled: August 10, 2016Publication date: June 13, 2019Applicant: Mitsubishi Electric CorporationInventor: Hidetomo NAKAGAWA
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Publication number: 20180003190Abstract: In an axial flow fan according to the present invention, a plurality of blades rotate about a rotation axis of the blades to convey a fluid. In the axial flow fan, the plurality of blades each have a leading edge at a leading side in a rotational direction, a trailing edge at a trailing side in the rotational direction, and an outer peripheral edge connecting the leading edge and the trailing edge. The leading edge of one of the plurality of blades and the trailing edge of another blade adjacent to the leading edge of the blade in the rotational direction are connected by a plate-shaped connection portion. The plurality of blades each have at least one plate-shaped reinforcement rib extending from a periphery of the rotation axis toward the outer peripheral edge of the blade.Type: ApplicationFiled: August 3, 2015Publication date: January 4, 2018Inventors: Shingo HAMADA, Koji SACHIMOTO, Yosuke KIKUCHI, Hajime IKEDA, Takashi KOBAYASHI, Seiji HIRAKAWA, Hiroshi YOSHIKAWA, Hidetomo NAKAGAWA, Hiroaki MAKINO
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Patent number: 9857095Abstract: In an indoor unit for an air-conditioning apparatus, a casing has an air inlet formed in an upper part and an air outlet formed below a front part. The casing accommodates a heat exchanger and fan. A horizontal airflow-direction louver is mounted pivotally inside the air outlet to guide airflow in a horizontally changeable manner. A vertical airflow-direction louver is mounted to cover the air outlet in a closed position and to guide airflow in a vertically changeable manner. An infrared sensor projects downward from the casing at a position in a horizontal end portion of the casing and in front of the air outlet. An airflow blocking portion is located behind the infrared sensor, and has a side wall on or beside one edge of the air outlet. The side wall is located closer to a center of the air outlet in the horizontal direction than the infrared sensor.Type: GrantFiled: July 30, 2015Date of Patent: January 2, 2018Assignee: Mitsubishi Electric CorporationInventors: Seiji Hirakawa, Hidetomo Nakagawa, Nobutaka Tanabe, Motoshi Tezuka
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Publication number: 20160033162Abstract: An indoor unit for an air-conditioning apparatus includes: a casing having an air inlet formed in an upper part of the casing and an air outlet formed below a front part of the casing, the casing accommodating therein a heat exchanger and a fan; at least one horizontal airflow-direction louver mounted pivotally inside the air outlet to guide airflow through the air outlet in a horizontally changeable manner; at least one vertical airflow-direction louver mounted to cover the air outlet in a closed position and to guide airflow through the air outlet in a vertically changeable manner; an infrared sensor projecting downward from the casing at a position in a horizontal end portion of the casing and in front of the air outlet; and at least one airflow blocking portion located behind the infrared sensor, the at least one airflow blocking portion having a side wall on or beside one edge of the air outlet, the side wall located closer to a center of the air outlet in the horizontal direction than the infrared sensoType: ApplicationFiled: July 30, 2015Publication date: February 4, 2016Inventors: Seiji HIRAKAWA, Hidetomo NAKAGAWA, Nobutaka TANABE, Motoshi TEZUKA
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Patent number: 8826678Abstract: In an air conditioner according to the present invention, an indoor unit includes an indoor air temperature detection unit to detect an indoor air temperature, a floor/wall/ceiling temperature detection unit to detect a floor and wall temperature and a ceiling ambient temperature, and a control device including a microcomputer in which a program relating to control of the air conditioner is embedded, wherein, in heating operation or ventilation operation, the control device performs circulator operation of moving air accumulating near a ceiling to a floor when the ceiling ambient temperature detected by the floor/wall/ceiling temperature detection unit becomes higher, by a predetermined threshold value or more, than an indoor air preset temperature set by a user.Type: GrantFiled: April 15, 2011Date of Patent: September 9, 2014Assignee: Mitsubishi Electric CorporationInventors: Hidetomo Nakagawa, Yoshikuni Kataoka
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Patent number: 8801850Abstract: A coating composition including ultrafine silica particles having an average particle diameter of 15 nm or less and fluororesin particles, in which ultrafine silica particle content is 0.1 to 5 mass %, and the mass ratio of the ultrafine silica particles to the fluororesin particles is 70:30 to 95:5. According to the coating composition, there is provided a coating film which makes it possible to readily coat the surfaces of various articles without impairing the color tone and the texture and which is excellent in antisoiling performance and durability.Type: GrantFiled: January 8, 2008Date of Patent: August 12, 2014Assignee: Mitsubishi Electric CorporationInventors: Yasuhiro Yoshida, Yoshinori Yamamoto, Teruhiko Kumada, Reiji Morioka, Toshiaki Yoshikawa, Yoshinori Tanikawa, Tsukasa Takagi, Hidetomo Nakagawa
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Publication number: 20120012297Abstract: In an air conditioner according to the present invention, an indoor unit includes an indoor air temperature detection unit to detect an indoor air temperature, a floor/wall/ceiling temperature detection unit to detect a floor and wall temperature and a ceiling ambient temperature, and a control device including a microcomputer in which a program relating to control of the air conditioner is embedded, wherein, in heating operation or ventilation operation, the control device performs circulator operation of moving air accumulating near a ceiling to a floor when the ceiling ambient temperature detected by the floor/wall/ceiling temperature detection unit becomes higher, by a predetermined threshold value or more, than an indoor air preset temperature set by a user.Type: ApplicationFiled: April 15, 2011Publication date: January 19, 2012Applicant: Mitsubishi Electric CorporationInventors: Hidetomo Nakagawa, Yoshikuni Kataoka
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Patent number: D782639Type: GrantFiled: October 27, 2015Date of Patent: March 28, 2017Assignee: Mitsubishi Electric CorporationInventors: Shingo Hamada, Koji Sachimoto, Yosuke Kikuchi, Hajime Ikeda, Takashi Kobayashi, Seiji Hirakawa, Hiroshi Yoshikawa, Hidetomo Nakagawa, Hiroaki Makino
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Patent number: D787035Type: GrantFiled: February 11, 2015Date of Patent: May 16, 2017Assignee: Mitsubishi Electric CorporationInventors: Shingo Hamada, Katsumi Shibayama, Takashi Kitazumi, Katsuhiro Tozuka, Hiroshi Yoshikawa, Hiroaki Makino, Hidetomo Nakagawa
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Patent number: D800889Type: GrantFiled: December 22, 2016Date of Patent: October 24, 2017Assignee: Mitsubishi Electric CorporationInventors: Shingo Hamada, Koji Sachimoto, Yosuke Kikuchi, Hajime Ikeda, Takashi Kobayashi, Seiji Hirakawa, Hiroshi Yoshikawa, Hidetomo Nakagawa, Hiroaki Makino
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Patent number: D800890Type: GrantFiled: December 22, 2016Date of Patent: October 24, 2017Assignee: Mitsubishi Electric CorporationInventors: Shingo Hamada, Koji Sachimoto, Yosuke Kikuchi, Hajime Ikeda, Takashi Kobayashi, Seiji Hirakawa, Hiroshi Yoshikawa, Hidetomo Nakagawa, Hiroaki Makino
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Patent number: D803378Type: GrantFiled: December 22, 2016Date of Patent: November 21, 2017Assignee: Mitsubishi Electric CorporationInventors: Shingo Hamada, Koji Sachimoto, Yosuke Kikuchi, Hajime Ikeda, Takashi Kobayashi, Seiji Hirakawa, Hiroshi Yoshikawa, Hidetomo Nakagawa, Hiroaki Makino