Patents by Inventor Kenji Matsumura
Kenji Matsumura 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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Patent number: 11963778Abstract: A belt and electrocardiographic measurement device, the belt including a belt body windable around an upper arm in a circumferential direction of the upper arm, and an electrode array including a plurality of electrodes fixed to an inner surface of the belt body and arranged side by side in a direction, which is a longitudinal direction of the belt body, the plurality of electrodes being more than N+2 in number, where N is a number of electrodes required for obtaining electrocardiographic information, the electrodes, counted from a first electrode located at a first end in the direction (X) by counting including the first electrode, to the (N+1)th electrode in the direction (X) being arranged at equal intervals that are predetermined intervals, and intervals between each of the (N+1)th and subsequent electrodes being greater than the predetermined interval.Type: GrantFiled: December 31, 2020Date of Patent: April 23, 2024Assignees: OMRON HEALTHCARE CO., LTD., OMRON CORPORATIONInventors: Reiji Fujita, Yasuhiro Kawabata, Kenji Fujii, Naomi Matsumura, Akito Ito
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Publication number: 20240122517Abstract: A biological information measurement device adapted to be attached on an upper arm of a human body and used thereon includes a belt portion adapted to be wound around the upper arm, electrocardiographic measurement means including a plurality of electrodes for detecting an electrocardiographic signal of the human body, pulse wave measurement means including a pulse wave sensor for detecting a pulse wave of the human body, heartbeat vibration measurement means including a vibration sensor for detecting vibration caused by beating of a heart of the human body, and an analysis processing unit configured to calculate a pre-ejection time and a pulse transit time of the heart based on time series data of the electrocardiographic signal, time series data of the pulse wave, and time series data of the vibration caused by the beating of the heart.Type: ApplicationFiled: December 12, 2023Publication date: April 18, 2024Inventors: Yasuhiro KAWABATA, Kenji FUJII, Naomi MATSUMURA, Akito ITO, Yuki SAKAGUCHI, Reiji FUJITA, Daizo OKA
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Patent number: 11959197Abstract: A first aspect of the present invention is carbon fiber wherein the surface of a monofilament has a center line average roughness Ra of 6.0 nm or more and 13 nm or less, and the monofilament has a long diameter/short diameter ratio of 1.11 or more and 1.245 or less. A second aspect of the present invention is carbon fiber precursor acrylic fiber wherein the surface of a monofilament has a center line average roughness Ra of 18 nm or more and 27 nm or less, and the monofilament has a long diameter/short diameter ratio of 1.11 or more and 1.245 or less. The carbon fiber according to the first aspect is obtained by stabilizing and carbonizing under specific conditions the carbon fiber precursor acrylic fiber according to the second aspect.Type: GrantFiled: August 15, 2019Date of Patent: April 16, 2024Assignee: Mitsubishi Chemical CorporationInventors: Naomasa Matsuyama, Yuutarou Nakamura, Norifumi Hirota, Hiroko Matsumura, Katsuhiko Ikeda, Kouki Wakabayashi, Tadashi Ootani, Akihiro Itou, Kenji Hirano, Akito Hatayama, Kenji Kaneta, Atsushi Nakajima
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Publication number: 20240081718Abstract: A biological information measurement device includes a sensor unit that detects predetermined biological information related to an organ of a living body, an A/D conversion unit that converts a measurement signal output from the sensor unit into a digital signal, a storage unit that stores information including a digital signal related to the measurement signal output from the A/D conversion unit, an analysis processing unit that determines presence or absence of a suspicion of an abnormality in the organ by analyzing the digital signal, and a measurement control unit that changes a sampling frequency related to A/D conversion of the measurement signal under a predetermined condition when the analysis processing unit has determined that a suspicion of an abnormality is present in the organ.Type: ApplicationFiled: November 16, 2023Publication date: March 14, 2024Inventors: Kenji FUJII, Yasuhiro KAWABATA, Naomi MATSUMURA, Akito ITO, Yuki SAKAGUCHI, Daizo OKA, Takuya YOSHIDA, Seiji FUKUNAGA, Tatsuaki OKA
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Publication number: 20220049526Abstract: A mobile body moving device includes: a mobile body; an engaged portion; a lock mechanism including an engaging portion, a driving section, and a position detection section; a control section calculating a reference electrical quantity by multiplying time taken for movement of the engaging portion from a movement start position to a predetermined position by an initial voltage for the movement; and a voltage detection section When determining that the position detection section is abnormal, the control section calculates a necessary driving time from the reference electrical quantity and a movement initial voltage for the movement from the movement start position during the movement, and drives the driving section only for the necessary driving time. Thereby, it is possible to perform control such that the engaging portion of the lock mechanism driven by the driving section is positioned in the predetermined position even when a voltage changes.Type: ApplicationFiled: December 12, 2019Publication date: February 17, 2022Inventor: Kenji MATSUMURA
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Patent number: 11022372Abstract: An air conditioner that includes a heat exchanger including: heat-transfer pipes extending in a horizontal direction and spaced apart at predetermined intervals in a vertical direction and configured to allow a thermal medium to flow therein. A part of the heat transfer pipes are used for at least one inflow path into which the thermal medium flows from the outside of the heat exchanger and the other part of the heat transfer pipes are used for at least one outflow path from which the thermal medium flows out to the outside. At least one connection pipe through which an outlet side of one of the at least one inflow path communicates with an inlet side of one of the at least one outflow path.Type: GrantFiled: June 27, 2018Date of Patent: June 1, 2021Assignee: HITACHI-JOHNSON CONTROLS AIR CONDITIONING, INC.Inventors: Shuuhei Tada, Kenji Matsumura, Nagatoshi Ooki, Mamoru Houfuku, Takeshi Endo
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Patent number: 10989433Abstract: An air conditioner 1 includes: an outdoor heat exchanger 14; an outdoor fan 12 for blowing air to the outdoor heat exchanger; an outdoor fan motor 20 that drives the outdoor fan; an outdoor fan inverter 21 that drives the outdoor fan motor; and a control unit 31 that generates a rotation-speed command voltage for controlling the rotation number of the outdoor fan motor. In addition, the control unit starts a defrost operation of the outdoor heat exchanger, based on the rotation-speed command voltage. In this manner, it is possible to achieve an outdoor device of an air conditioner in which there is no need to provide a current detecting sensor, and it is possible to detect frost formation over the heat exchanger during a heating operation and to perform a defrost operation at low costs.Type: GrantFiled: November 26, 2014Date of Patent: April 27, 2021Assignee: HITACHI-JOHNSON CONTROLS AIR CONDITIONING, INC.Inventors: Natsuko Suzuki, Koji Naito, Kenji Matsumura, Kazumoto Urata
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Patent number: 10907902Abstract: A heat exchanger includes: a gas-side port connected to piping for a gaseous refrigerant; a liquid-side port connected to piping for a liquid refrigerant; a refrigerant path that links the gas-side port to the liquid-side port; at least four heat exchange part regions that perform heat exchange between air and the refrigerant flowing through the refrigerant path; and a branching and merging part that branches and merges the refrigerant path to connect the heat exchange part regions in series between the gas-side port and the liquid-side port through the refrigerant path. The heat exchange part regions are connected to each other through the branching and merging part so as to allow the number of refrigerant paths provided in the heat exchange part region near the gas-side port to be greater than the number of refrigerant paths provided in the heat exchange part region near the liquid-side port.Type: GrantFiled: September 10, 2015Date of Patent: February 2, 2021Assignee: HITACHI-JOHNSON CONTROLS AIR CONDITIONING, INC.Inventors: Mikihito Tokudi, Koji Naito, Kazumoto Urata, Kenji Matsumura, Kazuhiko Tani, Masayoshi Murofushi, Takumi Kamiaka
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Patent number: 10670311Abstract: The present invention provides a heat exchanger having a heat exchanging portion HE including a plurality of paths through which a refrigerant flows and a plurality of columns of fin plate that exchange heat between the refrigerant and air, wherein, in a case where the heat exchanging portion functions as a condenser, the refrigerant is flown from a header into the heat exchanging portion HE via the plurality of paths, every two paths of the plurality of paths merge into one single path by branching/merging pipes after the refrigerant has flown through one fin plate, before the refrigerant flows through the other fin plate so as to flow out of the heat exchanging portion HE, wherein a difference in height between the highest path and the lowest path in a vertical direction is set equal to or less than half of a height of the heat exchanging portion HE.Type: GrantFiled: May 26, 2016Date of Patent: June 2, 2020Assignee: Hitachi-Johnson Controls Air Conditioning, Inc.Inventors: Kenji Matsumura, Kazumoto Urata, Koji Naito, Mikihito Tokudi
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Publication number: 20180306515Abstract: An air conditioner that includes a heat exchanger including: heat-transfer pipes extending in a horizontal direction and spaced apart at predetermined intervals in a vertical direction and configured to allow a thermal medium to flow therein. A part of the heat transfer pipes are used for at least one inflow path into which the thermal medium flows from the outside of the heat exchanger and the other part of the heat transfer pipes are used for at least one outflow path from which the thermal medium flows out to the outside. At least one connection pipe through which an outlet side of one of the at least one inflow path communicates with an inlet side of one of the at least one outflow path.Type: ApplicationFiled: June 27, 2018Publication date: October 25, 2018Inventors: Shuuhei TADA, Kenji MATSUMURA, Nagatoshi OOKI, Mamoru HOUFUKU, Takeshi ENDO
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Publication number: 20180259265Abstract: A heat exchanger includes: a gas-side port connected to piping for a gaseous refrigerant; a liquid-side port connected to piping for a liquid refrigerant; a refrigerant path that links the gas-side port to the liquid-side port; at least four heat exchange part regions that perform heat exchange between air and the refrigerant flowing through the refrigerant path; and a branching and merging part that branches and merges the refrigerant path to connect the heat exchange part regions in series between the gas-side port and the liquid-side port through the refrigerant path.Type: ApplicationFiled: September 10, 2015Publication date: September 13, 2018Inventors: Mikihito TOKUDI, Koji NAITO, Kazumoto URATA, Kenji MATSUMURA, Kazuhiko TANI, Masayoshi MUROFUSHI, Takumi KAMIAKA
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Publication number: 20170284717Abstract: An air conditioner 1 includes: an outdoor heat exchanger 14; an outdoor fan 12 for blowing air to the outdoor heat exchanger; an outdoor fan motor 20 that drives the outdoor fan; an outdoor fan inverter 21 that drives the outdoor fan motor; and a control unit 31 that generates a rotation-speed command voltage for controlling the rotation number of the outdoor fan motor. In addition, the control unit starts a defrost operation of the outdoor heat exchanger, based on the rotation-speed command voltage. In this manner, it is possible to achieve an outdoor device of an air conditioner in which there is no need to provide a current detecting sensor, and it is possible to detect frost formation over the heat exchanger during a heating operation and to perform a defrost operation at low costs.Type: ApplicationFiled: November 26, 2014Publication date: October 5, 2017Applicant: Johnson Controls-Hitachi Air Conditioning Technology (Hong Kong) LimitedInventors: Natsuko SUZUKI, Koji NAITO, Kenji MATSUMURA, Kazumoto URATA
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Publication number: 20160348951Abstract: The present invention provides a heat exchanger having a heat exchanging portion HE including a plurality of paths through which a refrigerant flows and a plurality of columns of fin plate that exchange heat between the refrigerant and air, wherein, in a case where the heat exchanging portion functions as a condenser, the refrigerant is flown from a header into the heat exchanging portion HE via the plurality of paths, every two paths of the plurality of paths merge into one single path by branching/merging pipes after the refrigerant has flown through one fin plate, before the refrigerant flows through the other fin plate so as to flow out of the heat exchanging portion HE, wherein a difference in height between the highest path and the lowest path in a vertical direction is set equal to or less than half of a height of the heat exchanging portion HE.Type: ApplicationFiled: May 26, 2016Publication date: December 1, 2016Inventors: Kenji MATSUMURA, Kazumoto URATA, Koji NAITO, Mikihito TOKUDI
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Patent number: 8742554Abstract: A circuit member includes a frame substrate formed, by patterning a rolled copper plate or a rolled copper alloy plate, with a die pad portion for a semiconductor chip to be mounted thereon, and a lead portion for an electrical connection to the semiconductor chip, having rough surfaces formed as roughed surfaces on upsides and lateral wall sides of the die pad portion and the lead portion, and smooth surfaces formed on downsides of the die pad portion and the lead portion, and the die pad portion and the lead portion are buried in a sealing resin, having a downside of the lead portion exposed.Type: GrantFiled: April 26, 2006Date of Patent: June 3, 2014Assignee: Dai Nippon Printing Co., Ltd.Inventors: Yo Shimazaki, Hiroyuki Saito, Masachika Masuda, Kenji Matsumura, Masaru Fukuchi, Takao Ikezawa
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Patent number: 8739401Abstract: A circuit member includes a frame substrate formed, by patterning a rolled copper plate or a rolled copper alloy plate, with a die pad portion for a semiconductor chip to be mounted thereon, and a lead portion for an electrical connection to the semiconductor chip, having rough surfaces formed as roughed surfaces on upsides and lateral wall sides of the die pad portion and the lead portion, and smooth surfaces formed on downsides of the die pad portion and the lead portion, and the die pad portion and the lead portion are buried in a sealing resin, having a downside of the lead portion exposed.Type: GrantFiled: September 9, 2010Date of Patent: June 3, 2014Assignee: Dai Nippon Printing Co., Ltd.Inventors: Yo Shimazaki, Hiroyuki Saito, Masachika Masuda, Kenji Matsumura, Masaru Fukuchi, Takao Ikezawa
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Patent number: 8420446Abstract: A circuit member includes a lead frame material having a die pad, a lead part to be electrically connected with a semiconductor chip, and an outer frame configured to support the die pad and the lead part. The lead frame material includes a resin sealing region. Roughened faces, each having an average roughness Ra of 0.3 ?m or greater, are formed on a surface in the resin sealing region of the lead frame material. The surface of the lead frame material except for the resin sealing region is a flat and smooth face. A two-layer plated layer formed by laminating a Ni plated layer and a Pd plated layer in this order or a three-layer plated layer formed by laminating the Ni plated layer, the Pd plated layer and an Au plated layer in this order is formed on the whole surface of the lead frame material.Type: GrantFiled: January 24, 2011Date of Patent: April 16, 2013Assignee: Dai Nippon Printing Co., Ltd.Inventors: Shimazaki Yo, Hiroyuki Saito, Masachika Masuda, Kenji Matsumura, Masaru Fukuchi, Takao Ikezawa
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Patent number: 8274877Abstract: An optical pickup (10) includes a light emitting element (11), a holding member (14), a light receiving element (18), and a base (13). The holding member (14) is fixed to the base (13) by a combined bonding portion (17). The combined bonding portion (17) is sandwiched between the holding member (14) and the base (13) so as to fix the holding member (14) to the base (13). The combined bonding portion (17) includes a first bonding portion (15) composed of a first adhesive and a second bonding portion (16) composed of a second adhesive having a higher curing shrinkage rate than the first adhesive. The first bonding portion (15) and the second bonding portion (16) are each sandwiched between the holding member (14) and the base (13), and the second bonding portion (16) is provided to cover at least a part of an outer peripheral surface of the first bonding portion (15). A difference between the curing shrinkage rate of the first adhesive and that of the second adhesive is 3.0% or less.Type: GrantFiled: August 27, 2009Date of Patent: September 25, 2012Assignee: Panasonic CorporationInventors: Masatoshi Yajima, Kenji Matsumura, Hideki Hayashi, Yoshiyuki Hashimoto
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Publication number: 20110117704Abstract: A circuit member includes a lead frame material having a die pad, a lead part to be electrically connected with a semiconductor chip, and an outer frame configured to support the die pad and the lead part. The lead frame material includes a resin sealing region. Roughened faces 10A to 10C and 11A to 11C, each having an average roughness Ra of 0.3 ?m or greater, are formed on a surface in the resin sealing region of the lead frame material. The surface of the lead frame material except for the resin sealing region is a flat and smooth face. A two-layer plated layer formed by laminating a Ni plated layer and a Pd plated layer in this order or a three-layer plated layer formed by laminating the Ni plated layer, the Pd plated layer and an Au plated layer in this order is formed on the whole surface of the lead frame material.Type: ApplicationFiled: January 24, 2011Publication date: May 19, 2011Applicant: Dai Nippon Printing Co., Ltd.Inventors: Yo Shimazaki, Hiroyuki Saito, Masachika Masuda, Kenji Matsumura, Masaru Fukuchi, Takao Ikezawa
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Publication number: 20100325885Abstract: A circuit member includes a frame substrate formed, by patterning a rolled copper plate or a rolled copper alloy plate, with a die pad portion for a semiconductor chip to be mounted thereon, and a lead portion for an electrical connection to the semiconductor chip, having rough surfaces formed as roughed surfaces on upsides and lateral wall sides of the die pad portion and the lead portion, and smooth surfaces formed on downsides of the die pad portion and the lead portion, and the die pad portion and the lead portion are buried in a sealing resin, having a downside of the lead portion exposed.Type: ApplicationFiled: September 9, 2010Publication date: December 30, 2010Applicant: Dai Nippon Printing Co., Ltd.Inventors: Yo Shimazaki, Hiroyuki Saito, Masachika Masuda, Kenji Matsumura, Masaru Fukuchi, Takao Ikezawa
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Publication number: 20100329101Abstract: A dichroic mirror is a wedge-shaped quadrangular prism whose cross-section is a trapezoid having an upper base d and a lower base d+?d. The dichroic mirror receives on its top surface parallel light emitted from a collimating lens and reflects, off the top surface, most of the parallel light towards a wavelength plate. Moreover, the dichroic mirror transmits, through the top surface, part of the parallel light to output the part of the parallel light from a bottom surface facing the top surface toward a front monitor. The dichroic mirror has, on the bottom surface thereof, an inclination of an angle ? with respect to the top surface in a direction where a normal vector N of the bottom surface intersects with an xy-plane formed of: an optical axis x of incident light from the collimating lens; and an optical axis y of light emitted towards the wavelength plate.Type: ApplicationFiled: June 21, 2010Publication date: December 30, 2010Applicant: PANASONIC CORPORATIONInventors: Yasushi Kobayashi, Masatoshi Yajima, Tomoaki Tojo, Kenji Matsumura