Patents by Inventor Takuya Kadowaki

Takuya Kadowaki 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).

  • Patent number: 11913694
    Abstract: A heat pump system includes a refrigerant circuit in which a compressor, a refrigerant flow path included in a heat medium heat exchanger, an expansion valve, and a heat source side heat exchanger are connected, the heat medium heat exchanger including the refrigerant flow path and a heat medium flow path; a heat medium feed path connected to the heat medium flow path included in the heat medium heat exchanger; an indoor unit connected to the heat medium feed path and configured to condition air inside a room; a room temperature sensor configured to detect an indoor temperature in the room; a heat medium temperature sensor configured to detect a temperature of a heat medium that flows into the indoor unit; and a controller configured to control the refrigerant circuit or the indoor unit by using a set temperature in the room.
    Type: Grant
    Filed: March 7, 2018
    Date of Patent: February 27, 2024
    Assignee: Mitsubishi Electric Corporation
    Inventors: Kazuki Hayashida, Yasushi Okoshi, Takuya Ito, Yoshio Yamano, Kimitaka Kadowaki, Takahiro Akizuki
  • Publication number: 20230296442
    Abstract: A sensor element includes a first silicon semiconductor portion, a second silicon semiconductor portion, a third silicon semiconductor portion, and a p-n junction. The first silicon semiconductor portion includes a first p-type impurity. The second silicon semiconductor portion is arranged on the first silicon semiconductor portion and includes a second p-type impurity. The third silicon semiconductor portion is arranged on the second silicon semiconductor portion and includes an n-type impurity. The p-n junction is defined between the second silicon semiconductor portion and the third silicon semiconductor portion. The sensor element has light-receiving sensitivity to light having a wavelength longer than a wavelength corresponding to a band gap of silicon.
    Type: Application
    Filed: March 16, 2023
    Publication date: September 21, 2023
    Inventors: Tadashi KAWAZOE, Takuya KADOWAKI
  • Publication number: 20230118425
    Abstract: A positive electrode active material for an all-solid-state lithium-ion battery composed of particles containing crystals of a lithium metal composite oxide, wherein the lithium metal composite oxide has a layered structure and contains at least Li and a transition metal, and the positive electrode active material for an all-solid-state lithium-ion battery satisfies all Formulae (1) to (3).
    Type: Application
    Filed: January 15, 2021
    Publication date: April 20, 2023
    Inventors: Takuya KADOWAKI, Jun-ichi KAGEURA, Chikara MURAKAMI
  • Publication number: 20230106687
    Abstract: A positive electrode active material for an all-solid-state lithium-ion battery composed of particles containing crystals of a lithium metal composite oxide, wherein the particles have a layered structure and contain at least Li and a transition metal, and in powder x-ray diffraction measurement using CuK? rays, a ratio I003/I004 of an integrated intensity I104 of a diffraction peak in a range of 2?=44.4±1° to an integrated intensity I003 of a diffraction peak in a range of 2?=18.5±1° exceeds 1.23, and wherein a press density A when the positive electrode active material for an all-solid-state lithium-ion battery is compressed at a pressure of 45 MPa is 2.90 g/cm3 or more.
    Type: Application
    Filed: January 15, 2021
    Publication date: April 6, 2023
    Inventors: Takuya KADOWAKI, Jun-ichi KAGEURA, Chikara MURAKAMI
  • Publication number: 20230078896
    Abstract: What is provided is a positive electrode active material for an all-solid-state lithium-ion battery composed of particles containing crystals of a lithium metal composite oxide, wherein the particles have a hexagonal layered crystal structure belonging to the space group R-3m and contain at least Li and a transition metal, and in powder x-ray diffraction measurement using CuK? rays, the crystallite size L003 of a diffraction peak in a range of 2?=18.7±1° is 1,300 ? or less, and wherein the BET specific surface area is 0.2 m2/g or more and 2.0 m2/g or less.
    Type: Application
    Filed: December 23, 2020
    Publication date: March 16, 2023
    Inventors: Takuya KADOWAKI, Jun-ichi KAGEURA, Chikara MURAKAMI
  • Publication number: 20230085370
    Abstract: A method of manufacturing a non-classical light source device includes: providing a semiconductor structure that includes a first semiconductor region having a first impurity of a first conductivity type that is one of p-type or n-type, and a second semiconductor region having a second impurity of a second conductivity type that is the other of p-type or n-type; and irradiating the semiconductor structure with laser light in the presence of a forward current flowing through the semiconductor structure while the semiconductor structure is in thermal contact with a cooling base at a temperature higher than ?40° C. and lower than 15° C., thereby diffusing the second impurity.
    Type: Application
    Filed: September 8, 2022
    Publication date: March 16, 2023
    Applicant: NICHIA CORPORATION
    Inventors: Tadashi KAWAZOE, Takuya KADOWAKI
  • Publication number: 20230061261
    Abstract: A light-emitting device includes at least one light-emitting element including a semiconductor layered portion and configured to emit light that has a predetermined wavelength and includes a first polarization component and a second polarization component; and at least one polarized light control member in contact with the at least one light-emitting element. The at least one polarized light control member includes a first structure and a second structure that are positioned in order from the at least one light-emitting element side. The first structure receives the light having the predetermined wavelength to generate near-field light. The second structure receives the near-field light and the light having the predetermined wavelength to emit light in which a proportion of the second polarization component is greater than a proportion of the first polarization component.
    Type: Application
    Filed: August 29, 2022
    Publication date: March 2, 2023
    Applicant: NICHIA CORPORATION
    Inventors: Takuya KADOWAKI, Tadashi KAWAZOE, Masaki SUGETA
  • Publication number: 20230052234
    Abstract: What is claimed is a positive electrode active material for an all-solid-state lithium-ion battery composed of particles containing crystals of a lithium metal composite oxide, wherein the lithium metal composite oxide has a layered structure and contains at least Li and a transition metal, and wherein, in the particles, in pore physical properties obtained from nitrogen adsorption isotherm measurement and nitrogen desorption isotherm measurement at a liquid nitrogen temperature, the total pore volume obtained from a nitrogen adsorption amount when the relative pressure (p/p0) of an adsorption isotherm is 0.99 is less than 0.0035 cm3/g.
    Type: Application
    Filed: January 15, 2021
    Publication date: February 16, 2023
    Inventors: Takuya KADOWAKI, Jun-ichi KAGEURA, Chikara MURAKAMI
  • Publication number: 20230048124
    Abstract: A mixed powder for an all-solid-state lithium-ion battery, which is composed of a positive electrode active material for a lithium-ion battery and a solid electrolyte, wherein the positive electrode active material for a lithium-ion battery is composed of particles containing crystals of a lithium metal composite oxide, and the lithium metal composite oxide has a layered structure and contains at least Li and a transition metal, wherein the positive electrode active material for a lithium-ion battery has a particle diameter distribution that satisfies the following Formula (1), and wherein the solid electrolyte has a particle diameter distribution that satisfies the following Formula (2): D90-D10 / D50 ? 1 .5 D90-D10 / D50 ? 2.
    Type: Application
    Filed: January 15, 2021
    Publication date: February 16, 2023
    Inventors: Takuya KADOWAKI, Jun-ichi KAGEURA, Chikara MURAKAMI
  • Patent number: 11442294
    Abstract: A transmissive polarization control device includes: a semiconductor layer having a first surface and a second surface opposite to the first surface, the semiconductor layer including: a first conductivity type region having a conductivity type, a second conductivity type region having a conductivity type, and a pn junction located between the first and second conductivity type regions; a loop electrode disposed on the first surface and configured such that an electric current flowing through the loop produces a magnetic field in a direction penetrating the pn junction; and a near-field light formation region in which an impurity of the first conductivity type introduced as a dopant into the first conductivity type region for formation of near-field light is distributed. A polarization direction of linearly polarized light traveling through a region surrounded by the loop electrode and the near-field light formation region is rotated according to the electric current.
    Type: Grant
    Filed: June 23, 2020
    Date of Patent: September 13, 2022
    Assignee: NICHIA CORPORATION
    Inventors: Takuya Kadowaki, Motoichi Ohtsu, Tadashi Kawazoe
  • Patent number: 11417390
    Abstract: A memory device and an operation method thereof are provided. The memory device includes an input/output data latch circuit and a bit line sensing amplifier circuit. The input/output data latch circuit is coupled between a main input/output line pair and a local input/output line pair. The local input/output line pair is coupled to a plurality of bit line pairs through the bit line sensing amplifier circuit. The memory device performs a two-stage operation to input or output data of a selected bit line pair among the bit line pairs. The selected bit line pair connects to the local input/output line pair only during one stage operation of the two-stage operation. Further, during the other stage operation of the two-stage operation, the data of the selected bit line pair latched in the input/output data latch circuit is transmitted to the main input/output line pair.
    Type: Grant
    Filed: July 7, 2020
    Date of Patent: August 16, 2022
    Assignee: Winbond Electronics Corp.
    Inventor: Takuya Kadowaki
  • Patent number: 11404110
    Abstract: A sense amplification device is provided. The sense amplification device includes a first sense amplifier, a second sense amplifier, and a third sense amplifier. An input terminal of the first sense amplifier is coupled to a first bit line. An input terminal of the second sense amplifier is coupled to a second bit line. The third sense amplifier has a differential input pair and a differential output pair, wherein a first input terminal of the differential input pair is coupled to an output terminal of the first sense amplifier, a second input terminal of the differential input pair is coupled to an output terminal of the second sense amplifier, a first output terminal of the differential output pair is coupled to the input terminal of the first sense amplifier, and a second output terminal of the differential output pair is coupled to the input terminal of the second sense amplifier.
    Type: Grant
    Filed: July 14, 2020
    Date of Patent: August 2, 2022
    Assignee: Winbond Electronics Corp.
    Inventor: Takuya Kadowaki
  • Patent number: 11296318
    Abstract: The present invention provides a positive electrode active material for an all-solid-state lithium-ion battery, an electrode, and an all-solid-state lithium-ion battery capable of smoothly exchanging lithium ions with a solid electrolyte at a positive electrode and improving battery performance. A positive electrode active material for an all-solid-state lithium-ion battery formed of particles includes crystals of a lithium metal composite oxide, in which the lithium metal composite oxide has a layered structure and contains at least Li and a transition metal, and the particles have an average crush strength of more than 50 MPa and satisfy Expression (1). 1.
    Type: Grant
    Filed: January 13, 2021
    Date of Patent: April 5, 2022
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Takuya Kadowaki, Jun-ichi Kageura, Chikara Murakami
  • Publication number: 20220020421
    Abstract: A sense amplification device is provided. The sense amplification device includes a first sense amplifier, a second sense amplifier, and a third sense amplifier. An input terminal of the first sense amplifier is coupled to a first bit line. An input terminal of the second sense amplifier is coupled to a second bit line. The third sense amplifier has a differential input pair and a differential output pair, wherein a first input terminal of the differential input pair is coupled to an output terminal of the first sense amplifier, a second input terminal of the differential input pair is coupled to an output terminal of the second sense amplifier, a first output terminal of the differential output pair is coupled to the input terminal of the first sense amplifier, and a second output terminal of the differential output pair is coupled to the input terminal of the second sense amplifier.
    Type: Application
    Filed: July 14, 2020
    Publication date: January 20, 2022
    Applicant: Winbond Electronics Corp.
    Inventor: Takuya Kadowaki
  • Publication number: 20220013162
    Abstract: A memory device and an operation method thereof are provided. The memory device includes an input/output data latch circuit and a bit line sensing amplifier circuit. The input/output data latch circuit is coupled between a main input/output line pair and a local input/output line pair. The local input/output line pair is coupled to a plurality of bit line pairs through the bit line sensing amplifier circuit. The memory device performs a two-stage operation to input or output data of a selected bit line pair among the bit line pairs. The selected bit line pair connects to the local input/output line pair only during one stage operation of the two-stage operation. Further, during the other stage operation of the two-stage operation, the data of the selected bit line pair latched in the input/output data latch circuit is transmitted to the main input/output line pair.
    Type: Application
    Filed: July 7, 2020
    Publication date: January 13, 2022
    Applicant: Winbond Electronics Corp.
    Inventor: Takuya Kadowaki
  • Publication number: 20210226209
    Abstract: The present invention provides a positive electrode active material for an all-solid-state lithium-ion battery, an electrode, and an all-solid-state lithium-ion battery capable of smoothly exchanging lithium ions with a solid electrolyte at a positive electrode and improving battery performance. A positive electrode active material for an all-solid-state lithium-ion battery formed of particles includes crystals of a lithium metal composite oxide, in which the lithium metal composite oxide has a layered structure and contains at least Li and a transition metal, and the particles have an average crush strength of more than 50 MPa and satisfy Expression (1). 1.
    Type: Application
    Filed: January 13, 2021
    Publication date: July 22, 2021
    Inventors: Takuya KADOWAKI, Jun-ichi KAGEURA, Chikara MURAKAMI
  • Publication number: 20200409186
    Abstract: A transmissive polarization control device includes: a semiconductor layer having a first surface and a second surface opposite to the first surface, the semiconductor layer including: a first conductivity type region having a conductivity type, a second conductivity type region having a conductivity type, and a pn junction located between the first and second conductivity type regions; a loop electrode disposed on the first surface and configured such that an electric current flowing through the loop produces a magnetic field in a direction penetrating the pn junction; and a near-field light formation region in which an impurity of the first conductivity type introduced as a dopant into the first conductivity type region for formation of near-field light is distributed. A polarization direction of linearly polarized light traveling through a region surrounded by the loop electrode and the near-field light formation region is rotated according to the electric current.
    Type: Application
    Filed: June 23, 2020
    Publication date: December 31, 2020
    Applicant: NICHIA CORPORATION
    Inventors: Takuya KADOWAKI, Motoichi OHTSU, Tadashi KAWAZOE
  • Publication number: 20200371866
    Abstract: Memory with an error correction circuit includes: a first error correction circuit performing error correction on first partial data to generate first partial write data or first partial read data; and a second error correction circuit performing error correction on second partial data to generate second partial write data or second partial read data. In a write mode, a plurality of sensing drive circuits respectively receive a plurality of first partial write bits of the first partial write data and a plurality of second partial write bits of the second partial write data, and each sensing drive circuit combines the first partial write bits with the corresponding second partial write bits and writes them to corresponding memory cell columns; in a read mode, the sensing driving circuits respectively sense stored data in the memory cell columns to generate a plurality of first partial read data and second partial read data.
    Type: Application
    Filed: May 23, 2019
    Publication date: November 26, 2020
    Applicant: Winbond Electronics Corp.
    Inventor: Takuya Kadowaki
  • Patent number: 10846168
    Abstract: Memory with an error correction circuit includes: a first error correction circuit performing error correction on first partial data to generate first partial write data or first partial read data; and a second error correction circuit performing error correction on second partial data to generate second partial write data or second partial read data. In a write mode, a plurality of sensing drive circuits respectively receive a plurality of first partial write bits of the first partial write data and a plurality of second partial write bits of the second partial write data, and each sensing drive circuit combines the first partial write bits with the corresponding second partial write bits and writes them to corresponding memory cell columns; in a read mode, the sensing driving circuits respectively sense stored data in the memory cell columns to generate a plurality of first partial read data and second partial read data.
    Type: Grant
    Filed: May 23, 2019
    Date of Patent: November 24, 2020
    Assignee: Winbond Electronics Corp.
    Inventor: Takuya Kadowaki
  • Patent number: D1017649
    Type: Grant
    Filed: February 22, 2022
    Date of Patent: March 12, 2024
    Assignee: Mitsubishi Electric Corporation
    Inventors: Takuya Ito, Junichi Miyai, Yuji Tarumi, Kazuki Murakawa, Kimitaka Kadowaki, Yoshio Yamano, Tomoya Kimura