Patents by Inventor Yoshiyuki Matsuura
Yoshiyuki Matsuura 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: 20240093994Abstract: An inertial measurement device includes: a first case and a second case; a board that is disposed in a space formed by the first case and the second case, that includes a first surface and a second surface, and in which a first inertial sensor is disposed at the first surface; a first filling material configured to fill between the first surface of the board and the first case and between the first inertial sensor and the first case; and a second filling material configured to fill between the second surface of the board and the second case.Type: ApplicationFiled: September 14, 2023Publication date: March 21, 2024Inventor: Yoshiyuki MATSUURA
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Publication number: 20240093997Abstract: An inertial measurement device includes: a board; a first inertial sensor configured to detect a physical quantity of a first axis and disposed perpendicular to the board; a rigid case configured to cover the first inertial sensor; and a filling material disposed between the first inertial sensor and the case.Type: ApplicationFiled: September 14, 2023Publication date: March 21, 2024Inventors: Taketo CHINO, Yoshiyuki MATSUURA
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Publication number: 20230324179Abstract: An inertial measurement device includes: a first inertial sensor having at least a first detection axis; and a second inertial sensor having at least a second detection axis and paired with the first inertial sensor. The first inertial sensor and the second inertial sensor are mounted on a circuit board in a state where a direction of the first detection axis of the first inertial sensor is rotated by 180° with respect to a direction of the second detection axis of the second inertial sensor. The inertial measurement device further includes a case accommodating the circuit board. Spaces between the first inertial sensor and the case and between the second inertial sensor and the case are filled with resin.Type: ApplicationFiled: April 6, 2023Publication date: October 12, 2023Inventors: Yoshikuni Saito, Taketo Chino, Yoshiyuki Matsuura
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Publication number: 20230243865Abstract: A measurement method includes: an estimation step of estimating a clipping target range in first measurement data on a predetermined physical quantity measured via a first sensor device disposed in a measurement object; and a processing step of clipping the range with respect to the first measurement data.Type: ApplicationFiled: January 27, 2023Publication date: August 3, 2023Inventor: Yoshiyuki MATSUURA
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Publication number: 20220404389Abstract: An inertia sensor detects a physical quantity based on a displacement in a Z axis when three axes orthogonal to one another are defined as an X axis, a Y axis, and the Z axis. The inertial sensor includes: a substrate; and a movable body that is fixed to the substrate, that swings around a swing axis P along the X axis, and that has two flat surfaces facing each other and a side surface connecting the two flat surfaces. The movable body includes a first extension arranged at a predetermined angle with respect to the swing axis P and a second extension arranged facing the side surface of the first extension.Type: ApplicationFiled: June 6, 2022Publication date: December 22, 2022Inventors: Shota Kigure, Yoshiyuki Matsuura
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Publication number: 20220140337Abstract: A positive electrode active material for a lithium-ion secondary battery contains a lithium-metal composite oxide. The lithium-metal composite oxide includes lithium, nickel, cobalt, and element M (M) in a mass ratio of Li:Ni:Co:M=1+a:1?x?y:x:y (wherein, ?0.05?a?0.50, 0?x?0.35, 0?y?0.35, and the element M is at least one element selected from Mg, Ca, Al, Si, Fe, Cr, Mn, V, Mo, W, Nb, Ti, Zr, and Ta), wherein when a line-analysis is performed with STEM-EELS from a surface to a center of the particle in a cross-section of the lithium-metal composite oxide during charging at 4.3 V (vs. Li+/Li), a thickness of an oxygen-release layer, in which an intensity ratio of a peak near 530 eV (1st) to a peak near 545 eV (2nd) at an O-K edge is 0.9 or less, is 200 nm or less, and wherein an index [(d90?d10)/mean volume particle diameter] of a particle size distribution is 1.25 or less.Type: ApplicationFiled: February 26, 2020Publication date: May 5, 2022Inventors: Takahiro TOMA, Takahiro OGAWA, Yoshiyuki MATSUURA, Kazuomi RYOSHI
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Publication number: 20220131141Abstract: A positive electrode active material for a lithium ion secondary battery contains a lithium metal composite oxide. The lithium metal composite oxide includes lithium (Li), nickel (Ni), cobalt (Co), and element M (M) in a mass ratio of Li:Ni:Co:M=1+a:1?x?y:x:y (wherein ?0.05?a?0.50, 0?x?0.35, 0?y?0.35, and the element M is at least one element selected from Mg, Ca, Al, Si, Fe, Cr, Mn, V, Mo, W, Nb, Ti, Zr, and Ta), wherein when a line analysis is performed with STEM-EELS from a surface of a particle of the lithium metal composite oxide to a center of the particle in a cross-section of the particle during charging at 4.3 V (vs. Li+/Li), a thickness of an oxygen release layer, in which an intensity ratio of a peak near 530 eV (1st) to a peak near 545 eV (2nd) at an O-K edge is 0.9 or less, is 200 nm or less.Type: ApplicationFiled: February 26, 2020Publication date: April 28, 2022Inventors: Takahiro TOMA, Takahiro OGAWA, Yoshiyuki MATSUURA, Kazuomi RYOSHI
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Publication number: 20220045323Abstract: A positive electrode active material for a lithium ion secondary battery contains a lithium metal composite oxide. The lithium metal composite oxide includes lithium (Li), nickel (Ni), cobalt (Co), and an element M (M) in a mass ratio of Li:Ni:Co:M=1+a:1?x?y:x:y (wherein ?0.05?a?0.50, 0?x?0.35, 0?y?0.35, and the element M is at least one element selected from Mg, Ca, Al, Si, Fe, Cr, Mn, V, Mo, W, Nb, Ti, Zr, and Ta), wherein a thickness of a NiO layer is 200 nm or less when a particle of the lithium metal composite oxide during charging at 4.3 V (vs. Li+/Li) is observed by STEM-EDS, and wherein a specific surface area is 0.7 m2/g or more and 2.0 m2/g or less.Type: ApplicationFiled: February 26, 2020Publication date: February 10, 2022Inventors: Takahiro TOMA, Takahiro OGAWA, Yoshiyuki MATSUURA, Kazuomi RYOSHI
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Publication number: 20220041466Abstract: A positive electrode active material for a lithium ion secondary battery contains a lithium metal composite oxide. The lithium metal composite oxide includes lithium (Li), nickel (Ni), cobalt (Co), and an element M (M) in a mass ratio of Li:Ni:Co:M=1+a:1?x?y:x:y (wherein ?0.05?a?0.50, 0?x?0.35, 0?y?0.35, and the element M is at least one element selected from Mg, Ca, Al, Si, Fe, Cr, Mn, V, Mo, W, Nb, Ti, Zr, and Ta), wherein a thickness of a NiO layer is 200 nm or less when a particle of the lithium metal composite oxide during charging at 4.3 V (vs. Li+/Li) is observed by STEM-EDS, and wherein an index [(d90?d10)/mean volume particle diameter] of spread of a particle size distribution is 1.25 or less.Type: ApplicationFiled: February 26, 2020Publication date: February 10, 2022Inventors: Takahiro TOMA, Takahiro OGAWA, Yoshiyuki MATSUURA, Kazuomi RYOSHI
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Patent number: 11137415Abstract: A vibrating device includes: a base body containing mobile ions; a movable member disposed facing and spaced apart from the base body; and a conductor section disposed so as to cover at least a portion of the movable member. A first voltage whose potential periodically changes based on a reference potential is applied to the movable member. A second voltage that is at the reference potential when time-averaged is applied to the conductor section. The second voltage is constant at the reference potential.Type: GrantFiled: June 25, 2018Date of Patent: October 5, 2021Inventor: Yoshiyuki Matsuura
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Patent number: 11099206Abstract: The physical quantity sensor includes a substrate of which thickness direction is in the direction along the Z axis, and a sensor element provided on the substrate to detect a physical quantity, wherein the sensor element includes a movable part which is displaced in a direction along the X axis that is an axis for measuring the physical quantity with respect to the substrate, and a fixed electrode fixed to the substrate, and the movable part includes a movable electrode disposed to face the fixed electrode in the direction along the X axis, and a mass portion that supports the movable electrode and has a longer length than the movable electrode in a direction along the Z axis.Type: GrantFiled: October 28, 2019Date of Patent: August 24, 2021Assignee: Seiko Epson CorporationInventor: Yoshiyuki Matsuura
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Patent number: 10830788Abstract: An acceleration sensor (sensor device) includes a substrate that includes a recessed portion (second recessed portion), a fixed electrode, and a dummy electrode juxtaposed with an insulating portion, and a movable body that is supported to be rockable by the substrate, in which the movable body includes a first region facing the fixed electrode, a second region facing a part of the dummy electrode, and a connecting portion connecting the first region and the second region to each other, the fixed electrode is provided with an extension electrode portion extending to a position facing the connecting portion, in a plan view of the movable body, at least a part of the extension electrode portion faces the connecting portion, and the insulating portion between the extension electrode portion and the dummy electrode faces the connecting portion inside the recessed portion.Type: GrantFiled: February 16, 2017Date of Patent: November 10, 2020Assignee: Seiko Epson CorporationInventor: Yoshiyuki Matsuura
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Publication number: 20200132714Abstract: The physical quantity sensor includes a substrate of which thickness direction is in the direction along the Z axis, and a sensor element provided on the substrate to detect a physical quantity, wherein the sensor element includes a movable part which is displaced in a direction along the X axis that is an axis for measuring the physical quantity with respect to the substrate, and a fixed electrode fixed to the substrate, and the movable part includes a movable electrode disposed to face the fixed electrode in the direction along the X axis, and a mass portion that supports the movable electrode and has a longer length than the movable electrode in a direction along the Z axis.Type: ApplicationFiled: October 28, 2019Publication date: April 30, 2020Inventor: Yoshiyuki MATSUURA
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Publication number: 20190025338Abstract: An acceleration sensor (sensor device) includes a substrate that includes a recessed portion (second recessed portion), a fixed electrode, and a dummy electrode juxtaposed with an insulating portion, and a movable body that is supported to be rockable by the substrate, in which the movable body includes a first region facing the fixed electrode, a second region facing a part of the dummy electrode, and a connecting portion connecting the first region and the second region to each other, the fixed electrode is provided with an extension electrode portion extending to a position facing the connecting portion, in a plan view of the movable body, at least a part of the extension electrode portion faces the connecting portion, and the insulating portion between the extension electrode portion and the dummy electrode faces the connecting portion inside the recessed portion.Type: ApplicationFiled: February 16, 2017Publication date: January 24, 2019Inventor: Yoshiyuki MATSUURA
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Publication number: 20180372773Abstract: A vibrating device includes: a base body containing mobile ions; a movable member disposed facing and spaced apart from the base body; and a conductor section disposed so as to cover at least a portion of the movable member. A first voltage whose potential periodically changes based on a reference potential is applied to the movable member. A second voltage that is at the reference potential when time-averaged is applied to the conductor section. The second voltage is constant at the reference potential.Type: ApplicationFiled: June 25, 2018Publication date: December 27, 2018Inventor: Yoshiyuki MATSUURA
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Patent number: 8493311Abstract: A display device includes a plurality of shift register sections, each being configured to sequentially generate a sampling pulse for writing a video signal into a pixel, wherein each of the plurality of shift register sections includes an even number of shift registers, and wherein one sampling pulse is generated by each of the plurality of shift register sections, and substantially all of the sampling pulses are generated on the basis of either the rising edges of a clock signal or the falling edges of a clock signal, whichever is selected in advance.Type: GrantFiled: January 30, 2009Date of Patent: July 23, 2013Assignee: Japan Display West Inc.Inventor: Yoshiyuki Matsuura
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Patent number: 8144104Abstract: A scanning line driving circuit includes: each stage shifts and outputs in sequence a start pulse; and logic circuits provided corresponding to the scanning lines and operating to determine the logical product of a signal outputted from the shift register of the stage corresponding to the scanning line and an enable signal supplied differently every group, the enable signal corresponding to the group becomes, in a horizontal scanning period in which the image data writing is carried out for the scanning lines belonging to the group, an active level in a horizontal effective scanning period and an inactive level in a horizontal return line period; and in a horizontal scanning period in which the image data writing is not carried out for the scanning lines belonging to the group, an inactive level in the horizontal effective scanning period and an active level in the horizontal return line period.Type: GrantFiled: October 1, 2009Date of Patent: March 27, 2012Assignee: Seiko Epson CorporationInventor: Yoshiyuki Matsuura
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Publication number: 20100091046Abstract: A scanning line driving circuit includes: each stage shifts and outputs in sequence a start pulse; and logic circuits provided corresponding to the scanning lines and operating to determine the logical product of a signal outputted from the shift register of the stage corresponding to the scanning line and an enable signal supplied differently every group, the enable signal corresponding to the group becomes, in a horizontal scanning period in which the image data writing is carried out for the scanning lines belonging to the group, an active level in a horizontal effective scanning period and an inactive level in a horizontal return line period; and in a horizontal scanning period in which the image data writing is not carried out for the scanning lines belonging to the group, an inactive level in the horizontal effective scanning period and an active level in the horizontal return line period.Type: ApplicationFiled: October 1, 2009Publication date: April 15, 2010Applicant: SEIKO EPSON CORPORATIONInventor: Yoshiyuki MATSUURA
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Publication number: 20090237329Abstract: A display device includes a plurality of shift register sections, each being configured to sequentially generate a sampling pulse for writing a video signal into a pixel, wherein each of the plurality of shift register sections includes an even number of shift registers, and wherein one sampling pulse is generated by each of the plurality of shift register sections, and substantially all of the sampling pulses are generated on the basis of either the rising edges of a clock signal or the falling edges of a clock signal, whichever is selected in advance.Type: ApplicationFiled: January 30, 2009Publication date: September 24, 2009Applicant: EPSON IMAGING DEVICES CORPORATIONInventor: Yoshiyuki Matsuura