Patents by Inventor Isao Matsuda
Isao Matsuda 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: 20240149940Abstract: A steering control device includes a processor configured to execute a reaction force control process. The reaction force control process includes a reaction force torque calculation process of calculating a reaction force torque operation amount. The reaction force torque calculation process includes a deviation compensation calculation process of calculating a deviation-compensating component. The deviation compensation calculation process includes a process of calculating a positional deviation, a process of calculating the deviation-compensating component based on the positional deviation, and a process of switching among a plurality of calculation states for calculating the deviation-compensating component. The process of switching among the calculation states is a process of permitting switching among the calculation states on the condition that a permission condition is met.Type: ApplicationFiled: October 25, 2023Publication date: May 9, 2024Applicants: JTEKT CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Satoshi MATSUDA, Isao NAMIKAWA, Koji ANRAKU, Tomoyuki IIDA, Kenji SHIBATA
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Publication number: 20240131804Abstract: Provided is a resin profile joining method of joining a pair of resin profiles. The method includes: holding one resin profile and another resin profile of the pair of resin profiles with a first mold and a second mold, respectively; heating the end surfaces of the pair of resin profiles in no contact with the end surfaces of the pair of resin profiles to melt the pair of resin profiles; after the heating, moving each of the first mold and the second mold relative to the pair of resin profiles in a longitudinal direction of a corresponding resin profile of the pair of resin profiles; and crimping the end surfaces of the pair of resin profiles to each other while keeping the first mold and the second mold in contact with the surfaces of the pair of resin profiles.Type: ApplicationFiled: June 1, 2023Publication date: April 25, 2024Inventors: Isao Kobayashi, Koji Matsuda
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Publication number: 20240133229Abstract: Provided is a resin profile joining method of joining a pair of resin profiles. The method includes: holding one resin profile and another resin profile of the pair of resin profiles with a first clamp and a second clamp, respectively, such that end surfaces of the pair of resin profiles are faced each other; heating the end surfaces of the pair of resin profiles in no contact with the end surfaces of the pair of resin profiles to melt the pair of resin profiles; making a guide in contact with surfaces of the pair of resin profiles so as to cover between the end surfaces of the pair of resin profiles after the heating; and crimping the end surfaces of the pair of resin profiles to each other while keeping the guide in contact with the surfaces of the pair of resin profiles.Type: ApplicationFiled: June 1, 2023Publication date: April 25, 2024Inventors: Isao Kobayashi, Koji Matsuda
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Publication number: 20210356318Abstract: A vibration sensor according to an embodiment includes a substrate, a convex member, and a piezoelectric element. The substrate includes a first principal surface and a second principal surface. The substrate transmits vibration. The convex member is fixed on the first principal surface. The piezoelectric element is disposed within a second fixing region on the second principal surface. The second fixing region corresponds to, in a planar view, a first fixing region of the substrate on which the convex member is fixed.Type: ApplicationFiled: July 30, 2021Publication date: November 18, 2021Applicant: TAIYO YUDEN CO., LTD.Inventors: Junji OSHITA, Isao MATSUDA, Takao SHIBUYA, Sakae MOTEGI, Hiroki HORIUCHI
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Patent number: 10520376Abstract: In one aspect, a load cell includes an elastic body, first optical unit, second optical unit, detector, and computation unit. The first optical unit has a light source, a first diffraction grating on which light from the light source is incident, and a light-receiving unit. The first optical unit is fixed to a first end portion of the elastic body and arranged within a hollow portion of the elastic body. The second optical unit has a second diffraction grating on which diffracted light from the first diffraction grating is incident to generate interference light. The second optical unit is fixed to a second end portion of the elastic body and arranged within the hollow portion. The detector detects the interference light. The computation unit computes a relative displacement amount of the second diffraction grating relative to the first diffraction grating on the basis of a signal obtained by the detector.Type: GrantFiled: October 18, 2017Date of Patent: December 31, 2019Assignee: TAIYO YUDEN CO., LTD.Inventors: Fuyuki Miyazawa, Katsuhiro Oyama, Isao Matsuda, Yasuhito Hagiwara, Takaki Hamamoto
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Publication number: 20180106690Abstract: In one aspect, a load cell includes an elastic body, first optical unit, second optical unit, detector, and computation unit. The first optical unit has a light source, a first diffraction grating on which light from the light source is incident, and a light-receiving unit. The first optical unit is fixed to a first end portion of the elastic body and arranged within a hollow portion of the elastic body. The second optical unit has a second diffraction grating on which diffracted light from the first diffraction grating is incident to generate interference light. The second optical unit is fixed to a second end portion of the elastic body and arranged within the hollow portion. The detector detects the interference light. The computation unit computes a relative displacement amount of the second diffraction grating relative to the first diffraction grating on the basis of a signal obtained by the detector.Type: ApplicationFiled: October 18, 2017Publication date: April 19, 2018Applicant: TAIYO YUDEN CO., LTD.Inventors: Fuyuki MIYAZAWA, Katsuhiro OYAMA, Isao MATSUDA, Yasuhito HAGIWARA, Takaki HAMAMOTO
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Publication number: 20180066966Abstract: A displacement measuring device according to the present invention includes a diffraction grating that receives light from a light source, the first diffraction grating including a plurality of grating pattern regions respectively having prescribed diffraction grating patterns, grating pitches of the plurality of grating pattern regions being equal to one another, the plurality of grating pattern regions being arranged in a direction that is orthogonal to a direction in which the prescribed diffraction grating patterns extend; a second diffraction grating that produces interference light upon receiving diffracted light rays emitted from the first diffraction grating; and a light detector that receives the interference light emitted from the second diffraction grating, the light detector including a plurality of photodetectors, the plurality of photodetectors being arranged along a first direction that is orthogonal to a direction in which interference fringes created by the interference light extend.Type: ApplicationFiled: August 31, 2017Publication date: March 8, 2018Applicant: TAIYO YUDEN CO., LTD.Inventors: Katsuhiro Oyama, Fuyuki Miyazawa, Yasuhito Hagiwara, Takaki Hamamoto, Isao Matsuda
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Patent number: 9719809Abstract: An optical unit includes: a first diffraction grating where light from a light source enters; a second diffraction grating that generates interference light as a result of diffracted light rays emitted from the first diffraction grating entering the second diffraction grating; and an optical member including a pair of reflective surfaces that are parallel and opposite to each other, the optical member being configured such that the pair of reflective surfaces respectively reflect ±mth-order diffracted light rays that are diffracted light rays of a specific order among a plurality of orders of the diffracted light rays emitted from the first diffraction grating so as to guide the ±mth-order diffracted light rays to the second diffraction grating, where m is a natural number.Type: GrantFiled: January 21, 2016Date of Patent: August 1, 2017Assignee: TAIYO YUDEN CO., LTD.Inventors: Katsuhiro Oyama, Fuyuki Miyazawa, Yasuhito Hagiwara, Takaki Hamamoto, Isao Matsuda
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Publication number: 20160216101Abstract: An optical unit includes: a first diffraction grating where light from a light source enters; a second diffraction grating that generates interference light as a result of diffracted light rays emitted from the first diffraction grating entering the second diffraction grating; and an optical member including a pair of reflective surfaces that are parallel and opposite to each other, the optical member being configured such that the pair of reflective surfaces respectively reflect ±mth-order diffracted light rays that are diffracted light rays of a specific order among a plurality of orders of the diffracted light rays emitted from the first diffraction grating so as to guide the ±mth-order diffracted light rays to the second diffraction grating, where m is a natural number.Type: ApplicationFiled: January 21, 2016Publication date: July 28, 2016Applicant: TAIYO YUDEN CO., LTD.Inventors: Katsuhiro OYAMA, Fuyuki MIYAZAWA, Yasuhito HAGIWARA, Takaki HAMAMOTO, Isao MATSUDA
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Patent number: 9202421Abstract: A display device has a display panel and a backlight unit. The backlight unit includes first and second light source units, and a control unit that outputs a drive signal to the light source units to drive the first and second light source units during first and second drive periods in one frame period respectively. The control unit drives the light source units so that the one frame period has an overlapped period, in which the first and second drive periods overlap. The control unit outputs PWM signals to turn the light source units on and off to the light source units respectively. The control unit shifts a phase of the PWM signal to be outputted to the first light source unit and a phase of the PWM signal to be outputted to the second light source unit from each other.Type: GrantFiled: April 24, 2013Date of Patent: December 1, 2015Assignee: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.Inventors: Akihiro Yamamura, Isao Matsuda
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Patent number: 8993085Abstract: A recordable optical recording medium is provided enabling the light transmission layer to be a single layer, the inhibition of peeling of the recording layer even when stored in high-temperature/high-moisture conditions, and the reduction of degradation of the recording/reproduction characteristics. A recordable optical recording medium provided with a substrate, and, on the substrate in the following order, a reflective layer, a recording layer, a protective layer, and a light transmission layer. The optical recording medium has the recording layer formed thereon using an organic dye obtained by adding a highly waterproof, low hydrophilic organic dye to a triazole-based azo metal complex dye.Type: GrantFiled: February 9, 2012Date of Patent: March 31, 2015Assignee: Taiyo Yuden Co., Ltd.Inventors: Takuo Kodaira, Isao Matsuda
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Patent number: 8993086Abstract: A recordable optical recording medium is provided enabling reliably preventing the deterioration of the recording characteristics, even when stored for a long period of time in an environment of high temperature and humidity. A recordable optical recording medium includes a substrate, and on the substrate, a reflective layer, a recording layer, a protective layer, a light transmission layer in a single layer structure having optical transparency, and a hard coat layer. The recording layer is formed by addition of an additive which functions as reducing agent to an azo metal complex dye having a triazole structure.Type: GrantFiled: February 9, 2012Date of Patent: March 31, 2015Assignee: Taiyo Yuden Co., Ltd.Inventors: Takuo Kodaira, Isao Matsuda, Eiji Yamada
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Patent number: 8866395Abstract: The instant application describes a display apparatus that includes a display panel configured to display an image; and a backlight unit configured to illuminate the display panel from a back of the display panel. The backlight unit includes: N light-emitting diode strings connected in parallel with each other, each of the N light-emitting diode strings includes M light-emitting diodes connected in series, N being an integer of 2 or more and M being an integer of 1 or more; a power source unit connected in series with the N light-emitting diode strings and configured to generate a voltage; a drive unit connected in series with the N light-emitting diode strings and the power source unit and configured to supply currents to the N light-emitting diode strings; and a current regulator configured to regulate current flowing in each of the N light-emitting diode strings.Type: GrantFiled: August 28, 2012Date of Patent: October 21, 2014Assignee: Panasonic Liquid Crystal Display Co., Ltd.Inventors: Akihiro Yamamura, Isao Matsuda, Yoshio Umeda
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Patent number: 8803169Abstract: A liquid crystal display device includes a liquid crystal display panel, and a backlight unit. The backlight unit includes a plurality of light emitting diodes each having an anode and a cathode, and first adjacently and disposed substrates. The plurality of light emitting diodes are mounted on the first substrate and the second substrate and arranged in a plurality of rows. A first light emitting diode mounted on the first substrate and a second light emitting diode mounted on the second substrate which are adjacent across a boundary between the first substrate and the second substrate are disposed so that respective anodes of the first and second light emitting diodes are opposed to each other and have a pitch equal to or smaller than a pitch of other light emitting diodes mounted on the first and second substrates.Type: GrantFiled: November 27, 2013Date of Patent: August 12, 2014Assignees: Japan Display Inc., Panasonic Liquid Crystal Co., Ltd.Inventors: Masashi Baba, Ikuko Imajo, Isao Matsuda
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Patent number: 8715805Abstract: An object of the present invention is to provide a recordable recording medium that suppresses increase in terminal noise and does not generate a BCA signal read error. The present invention provides a recordable optical recording medium comprising a substrate as well as at least a reflection layer, recording layer and light transmission layer provided on the substrate, wherein the recording layer of said optical recording medium contains (a) an azo metal complex dye and (b) another dye whose DSC decomposition heat value is 50 cal/g to 200 cal/g and ?max in TFP solution is 250 to 400 nm.Type: GrantFiled: January 23, 2013Date of Patent: May 6, 2014Assignee: Taiyo Yuden Co., Ltd.Inventors: Isao Matsuda, Takaki Hamamoto, Takuo Kodaira
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Publication number: 20140085566Abstract: A liquid crystal display device includes a liquid crystal display panel, and a backlight unit. The backlight unit includes a plurality of light emitting diodes each having an anode and a cathode, and first adjacently and disposed substrates. The plurality of light emitting diodes are mounted on the first substrate and the second substrate and arranged in a plurality of rows. A first light emitting diode mounted on the first substrate and a second light emitting diode mounted on the second substrate which are adjacent across a boundary between the first substrate and the second substrate are disposed so that respective anodes of the first and second light emitting diodes are opposed to each other and have a pitch equal to or smaller than a pitch of other light emitting diodes mounted on the first and second substrates.Type: ApplicationFiled: November 27, 2013Publication date: March 27, 2014Applicants: Panasonic Liquid Crystal Display Co., Ltd., Japan Display Inc.Inventors: Masashi Baba, Ikuko Imajo, Isao Matsuda
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Publication number: 20140030550Abstract: A recordable optical recording medium is provided enabling the light transmission layer to be a single layer, the inhibition of peeling of the recording layer even when stored in high-temperature/high-moisture conditions, and the reduction of degradation of the recording/reproduction characteristics. A recordable optical recording medium provided with a substrate, and, on the substrate in the following order, a reflective layer, a recording layer, a protective layer, and a light transmission layer. The optical recording medium has the recording layer formed thereon using an organic dye obtained by adding a highly waterproof, low hydrophilic organic dye to a triazole-based azo metal complex dye.Type: ApplicationFiled: February 9, 2012Publication date: January 30, 2014Inventors: Takuo Kodaira, Isao Matsuda
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Publication number: 20130337270Abstract: A recordable optical recording medium is provided enabling reliably preventing the deterioration of the recording characteristics, even when stored for a long period of time in an environment of high temperature and humidity. A recordable optical recording medium includes a substrate, and on the substrate, a reflective layer, a recording layer, a protective layer, a light transmission layer in a single layer structure having optical transparency, and a hard coat layer. The recording layer is formed by addition of an additive which functions as reducing agent to an azo metal complex dye having a triazole structure.Type: ApplicationFiled: February 9, 2012Publication date: December 19, 2013Inventors: Takuo Kodaira, Isao Matsuda, Eiji Yamada
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Patent number: 8598603Abstract: Provided is a liquid crystal display device, including: a liquid crystal display panel; and a backlight unit, in which: the backlight unit includes: a plurality of light emitting diodes each having an anode and a cathode; a first substrate; and a second substrate, the plurality of light emitting diodes being mounted on the first substrate and the second substrate; the first substrate and the second substrate are disposed adjacent to each other; light emitting diodes which are adjacent across a boundary between the first substrate and the second substrate are disposed so that the respective anodes are opposed to each other and so as to have a pitch equal to or smaller than a pitch of other adjacent light emitting diodes.Type: GrantFiled: June 28, 2011Date of Patent: December 3, 2013Assignees: Hitachi Displays, Ltd., Panasonic Liquid Display Co., Ltd.Inventors: Masashi Baba, Ikuko Imajo, Isao Matsuda
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Publication number: 20130278651Abstract: A display device has a display panel and a backlight unit. The backlight unit includes first and second light source units, and a control unit that outputs a drive signal to the light source units to drive the first and second light source units during first and second drive periods in one frame period respectively. The control unit drives the light source units so that the one frame period has an overlapped period, in which the first and second drive periods overlap. The control unit outputs PWM signals to turn the light source units on and off to the light source units respectively. The control unit shifts a phase of the PWM signal to be outputted to the first light source unit and a phase of the PWM signal to be outputted to the second light source unit from each other.Type: ApplicationFiled: April 24, 2013Publication date: October 24, 2013Applicant: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTDInventors: Akihiro YAMAMURA, Isao MATSUDA