Patents by Inventor Takuya Miwa

Takuya Miwa 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).

  • Publication number: 20250109240
    Abstract: An objective of the present invention is to provide an epoxy resin composition containing a reactive diluent capable of reducing viscosity while maintaining the epoxy resin's original properties as much as possible, and also capable of imparting novel additional effects such as adhesiveness, storage stability, etc. The invention relates to a one-pack type epoxy resin composition containing: component (A): a compound represented by general formula (1); component (B): an epoxy resin; and component (C): an amine-based curing agent. In the general formula (1), R1 represents a hydrogen atom or a methyl group; R2 and R3 each independently represent a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, or an alkoxy group having 1 to 6 carbon atoms; and n represents an integer of 1 to 3.
    Type: Application
    Filed: March 3, 2023
    Publication date: April 3, 2025
    Inventors: Takuya MIWA, Yui HASEGAWA, Ken-ichi TAMASO
  • Publication number: 20240421284
    Abstract: A lithium-ion secondary battery including a lithium-containing complex phosphate as a positive electrode active material is provided. Furthermore, a positive electrode active material with high diffusion rate of lithium ions is provided to provide a lithium-ion secondary battery with high output. A positive electrode active material of a lithium-ion secondary battery includes a first plate-like component and a second plate-like component, a third prismatic component between the first component and the second component, and a space between the first component and the second component.
    Type: Application
    Filed: August 29, 2024
    Publication date: December 19, 2024
    Inventors: Teppei OGUNI, Takuya MIWA
  • Patent number: 12087935
    Abstract: A lithium-ion secondary battery including a lithium-containing complex phosphate as a positive electrode active material is provided. Furthermore, a positive electrode active material with high diffusion rate of lithium ions is provided to provide a lithium-ion secondary battery with high output. A positive electrode active material of a lithium-ion secondary battery includes a first plate-like component and a second plate-like component, a third prismatic component between the first component and the second component, and a space between the first component and the second component.
    Type: Grant
    Filed: June 26, 2023
    Date of Patent: September 10, 2024
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Teppei Oguni, Takuya Miwa
  • Patent number: 12080893
    Abstract: A novel electrode is provided. A novel power storage device is provided. A conductor having a sheet-like shape is provided. The conductor has a thickness of greater than or equal to 800 nm and less than or equal to 20 ?m. The area of the conductor is greater than or equal to 25 mm2 and less than or equal to 10 m2. The conductor includes carbon and oxygen. The conductor includes carbon at a concentration of higher than 80 atomic % and oxygen at a concentration of higher than or equal to 2 atomic % and lower than or equal to 20 atomic %.
    Type: Grant
    Filed: May 26, 2023
    Date of Patent: September 3, 2024
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Teruaki Ochiai, Takahiro Kawakami, Takuya Miwa
  • Publication number: 20240186511
    Abstract: A composite oxide with high diffusion rate of lithium is provided. Alternatively, a lithium-containing complex phosphate with high diffusion rate of lithium is provided. Alternatively, a positive electrode active material with high diffusion rate of lithium is provided. Alternatively, a lithium ion battery with high output is provided. Alternatively, a lithium ion battery that can be manufactured at low cost is provided. A positive electrode active material is formed through a first step of mixing a lithium compound, a phosphorus compound, and water, a second step of adjusting pH by adding a first aqueous solution to a first mixed solution formed in the first step, a third step of mixing an iron compound with a second mixed solution formed in the second step, a fourth step of performing heat treatment under a pressure more than or equal to 0.1 MPa and less than or equal to 2 MPa at a highest temperature more than 100° C. and less than or equal to 119° C.
    Type: Application
    Filed: February 15, 2024
    Publication date: June 6, 2024
    Inventors: Takuya MIWA, Yumiko YONEDA, Teppei OGUNI
  • Patent number: 11936043
    Abstract: A composite oxide with high diffusion rate of lithium is provided. Alternatively, a lithium-containing complex phosphate with high diffusion rate of lithium is provided. Alternatively, a positive electrode active material with high diffusion rate of lithium is provided. Alternatively, a lithium ion battery with high output is provided. Alternatively, a lithium ion battery that can be manufactured at low cost is provided. A positive electrode active material is formed through a first step of mixing a lithium compound, a phosphorus compound, and water, a second step of adjusting pH by adding a first aqueous solution to a first mixed solution formed in the first step, a third step of mixing an iron compound with a second mixed solution formed in the second step, a fourth step of performing heat treatment under a pressure more than or equal to 0.1 MPa and less than or equal to 2 MPa at a highest temperature more than 100° C. and less than or equal to 119° C.
    Type: Grant
    Filed: April 7, 2021
    Date of Patent: March 19, 2024
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Takuya Miwa, Yumiko Yoneda, Teppei Oguni
  • Publication number: 20240030436
    Abstract: A hydrothermal synthesis for LiFePO4 is provided. First, each raw material solution is prepared using a degassed water in advance, second, those solution are mixed by dripping in a fixed order, and then those materials are reacted in a hydrothermal synthesis, so that LiFePO4 is obtained in a predesigned form.
    Type: Application
    Filed: September 27, 2023
    Publication date: January 25, 2024
    Inventors: Takuya MIWA, Kuniharu NOMOTO, Junpei MOMO
  • Patent number: 11799084
    Abstract: A hydrothermal synthesis for LiFePO4 is provided. First, each raw material solution is prepared using a degassed water in advance, second, those solution are mixed by dripping in a fixed order, and then those materials are reacted in a hydrothermal synthesis, so that LiFePO4 is obtained in a predesigned form.
    Type: Grant
    Filed: March 11, 2022
    Date of Patent: October 24, 2023
    Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Takuya Miwa, Kuniharu Nomoto, Junpei Momo
  • Publication number: 20230335707
    Abstract: A lithium-ion secondary battery including a lithium-containing complex phosphate as a positive electrode active material is provided. Furthermore, a positive electrode active material with high diffusion rate of lithium ions is provided to provide a lithium-ion secondary battery with high output. A positive electrode active material of a lithium-ion secondary battery includes a first plate-like component and a second plate-like component, a third prismatic component between the first component and the second component, and a space between the first component and the second component.
    Type: Application
    Filed: June 26, 2023
    Publication date: October 19, 2023
    Inventors: Teppei OGUNI, Takuya MIWA
  • Publication number: 20230322006
    Abstract: A pretreatment apparatus of the present disclosure is a pretreatment apparatus configured to perform pretreatment on a recording medium having permeability and to be applied with ink, including: a first applicator configured to apply an aqueous solution containing alginate to the recording medium; a second applicator configured to apply an aqueous solution containing a chelating agent to the recording medium; and a third applicator configured to apply a pretreatment agent containing a polyvalent metal salt to the recording medium, wherein the third applicator is configured to apply the pretreatment agent after the application of the aqueous solutions by the first applicator and the second applicator.
    Type: Application
    Filed: December 21, 2021
    Publication date: October 12, 2023
    Inventors: Takuya MIWA, Mami MURASE
  • Publication number: 20230299305
    Abstract: A novel electrode is provided. A novel power storage device is provided. A conductor having a sheet-like shape is provided. The conductor has a thickness of greater than or equal to 800 nm and less than or equal to 20 ?m. The area of the conductor is greater than or equal to 25 mm2 and less than or equal to 10 m2. The conductor includes carbon and oxygen. The conductor includes carbon at a concentration of higher than 80 atomic % and oxygen at a concentration of higher than or equal to 2 atomic % and lower than or equal to 20 atomic %.
    Type: Application
    Filed: May 26, 2023
    Publication date: September 21, 2023
    Inventors: Teruaki OCHIAI, Takahiro KAWAKAMI, Takuya MIWA
  • Patent number: 11728469
    Abstract: A lithium-ion secondary battery including a lithium-containing complex phosphate as a positive electrode active material is provided. Furthermore, a positive electrode active material with high diffusion rate of lithium ions is provided to provide a lithium-ion secondary battery with high output. A positive electrode active material of a lithium-ion secondary battery includes a first plate-like component and a second plate-like component, a third prismatic component between the first component and the second component, and a space between the first component and the second component.
    Type: Grant
    Filed: May 11, 2021
    Date of Patent: August 15, 2023
    Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Teppei Oguni, Takuya Miwa
  • Publication number: 20230253574
    Abstract: A positive electrode active material includes a plurality of groups of particles. The plurality of groups of particles has a particle diameter of more than or equal to 300 nm and less than or equal to 3 ?m. Each of the groups includes two or more particles. The two or more particles are each a lithium-containing complex phosphate including one or more of iron, nickel, manganese, and cobalt. The group of particles includes a first particle and a second particle each having a major diameter and a minor diameter in the upper surface when seen from a predetermined direction. The major diameters of the first and second particles are substantially parallel to each other. The major diameter of the first particle is two to six times larger than the minor diameter of the first particle and the minor diameter of the first particle is more than or equal to 20 nm and less than or equal to 130 nm.
    Type: Application
    Filed: April 17, 2023
    Publication date: August 10, 2023
    Inventors: Yumiko YONEDA, Takuya MIWA
  • Publication number: 20230246224
    Abstract: In the case where a film, which has lower strength than a metal can, is used as an exterior body of a secondary battery, a current collector provided in a region surrounded by the exterior body, an active material layer provided on a surface of the current collector, or the like might be damaged when force is externally applied to the secondary battery. A secondary battery which is resistant to external force in obtained. An opening is provided in a central portion of the secondary battery, and a terminal is formed in the opening. An outer edge of the secondary battery is fixed by thermocompression bonding. In addition, the central portion of the secondary battery is fixed by thermocompression bonding, so that the amount of bending is limited even when the outer edge portion of the secondary battery is bent.
    Type: Application
    Filed: April 10, 2023
    Publication date: August 3, 2023
    Inventors: Minoru TAKAHASHI, Yuugo GOTO, Yumiko YONEDA, Takuya MIWA, Ryota TAJIMA
  • Patent number: 11704911
    Abstract: In an apparatus for identifying an obstacle around a vehicle, an acquirer is configured to acquire an image captured by a camera mounted to the vehicle. An extractor is configured to extract feature points of the image. A generator is configured to generate an optical flow that is a movement vector from each of the feature points of the image acquired before the current time to a corresponding feature point of the image acquired at the current time. A classifier configured to classify the optical flows into groups each corresponding to an object in the image based on pixel positions of the feature points. An identifier is configured to, for each of the groups that the optical flows are classified by the classifier into, identify whether an object corresponding to the group in the image is a stationary object or a moving object based on a degree of variability in lengths of the optical flows of the group.
    Type: Grant
    Filed: October 12, 2020
    Date of Patent: July 18, 2023
    Assignees: DENSO CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takuya Miwa, Takayuki Hiromitsu, Masumi Fukuman, Akihiro Kida
  • Patent number: 11699794
    Abstract: A novel electrode is provided. A novel power storage device is provided. A conductor having a sheet-like shape is provided. The conductor has a thickness of greater than or equal to 800 nm and less than or equal to 20 ?m. The area of the conductor is greater than or equal to 25 mm2 and less than or equal to 10 m2. The conductor includes carbon and oxygen. The conductor includes carbon at a concentration of higher than 80 atomic % and oxygen at a concentration of higher than or equal to 2 atomic % and lower than or equal to 20 atomic %.
    Type: Grant
    Filed: April 28, 2022
    Date of Patent: July 11, 2023
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Teruaki Ochiai, Takahiro Kawakami, Takuya Miwa
  • Patent number: 11637293
    Abstract: A positive electrode active material includes a plurality of groups of particles. The plurality of groups of particles has a particle diameter of more than or equal to 300 nm and less than or equal to 3 ?m. Each of the groups includes two or more particles. The two or more particles are each a lithium-containing complex phosphate including one or more of iron, nickel, manganese, and cobalt. The group of particles includes a first particle and a second particle each having a major diameter and a minor diameter in the upper surface when seen from a predetermined direction. The major diameters of the first and second particles are substantially parallel to each other. The major diameter of the first particle is two to six times larger than the minor diameter of the first particle and the minor diameter of the first particle is more than or equal to 20 nm and less than or equal to 130 nm.
    Type: Grant
    Filed: June 4, 2020
    Date of Patent: April 25, 2023
    Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Yumiko Yoneda, Takuya Miwa
  • Patent number: 11626637
    Abstract: In the case where a film, which has lower strength than a metal can, is used as an exterior body of a secondary battery, a current collector provided in a region surrounded by the exterior body, an active material layer provided on a surface of the current collector, or the like might be damaged when force is externally applied to the secondary battery. A secondary battery which is resistant to external force is obtained. An opening is provided in a central portion of the secondary battery; and a terminal is formed in the opening. An outer edge of the secondary battery is fixed by thermocompression bonding. In addition, the central portion of the secondary battery is fixed by thermocompression bonding, so that the amount of bending is limited even when the outer edge portion of the secondary battery is bent.
    Type: Grant
    Filed: February 6, 2020
    Date of Patent: April 11, 2023
    Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Minoru Takahashi, Yuugo Goto, Yumiko Yoneda, Takuya Miwa, Ryota Tajima
  • Patent number: 11607914
    Abstract: A two-wheeled vehicle tyre includes a tread portion which is provided with a row of crown blocks arranged on a tyre equator and a row of middle blocks arranged axially outwardly of the row of crown blocks. Circumferential pitch lengths of directly adjacent crown blocks are greater than circumferential pitch lengths of directly adjacent middle blocks.
    Type: Grant
    Filed: January 24, 2019
    Date of Patent: March 21, 2023
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Takuya Miwa
  • Publication number: 20220403921
    Abstract: Provided is a power transmission device including a housing and a ball screw device including a nut housed in the housing. The device includes a screw shaft passing through the nut, and balls disposed between the nut and the screw shaft. The device also includes a first bearing and a second bearing that are disposed to be adjacent to each other in a center axis direction parallel with a center axis of the nut between the housing and the nut; and a preload applying member constituted of an elastic body and configured to apply preloads to the first bearing and the second bearing. The first bearing and the second bearing respectively include outer rings that are fitted to the housing and separated from each other in the center axis direction, and the first bearing and the second bearing are disposed to be a face-to-face combination.
    Type: Application
    Filed: November 6, 2020
    Publication date: December 22, 2022
    Applicant: NSK Ltd.
    Inventors: Hironari SAKODA, Yuta CHIHARA, Takuya MIWA