Patents by Inventor Tatsuya Yokoyama

Tatsuya Yokoyama 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: 11984924
    Abstract: A transmit/receive module includes plural duplexers, a power amplifier, and a sending transmission line. The plural duplexers operate in bands different from each other and each includes a transmit filter and a receive filter. The power amplifier amplifies signals of pass bands of the plural transmit filters and outputs the amplified signals. The sending transmission line is connected to the plural transmit filters. The signals of the pass bands of the plural transmit filters output from the power amplifier are transmitted through the sending transmission line.
    Type: Grant
    Filed: December 12, 2019
    Date of Patent: May 14, 2024
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Seima Kondo, Satoshi Tanaka, Satoshi Arayashiki, Hiroyuki Furusato, Jin Yokoyama, Toru Yamaji, Akio Kaneda, Kiwamu Sakano, Junichi Yoshioka, Tatsuya Tsujiguchi, Atushi Ono
  • Publication number: 20240154107
    Abstract: A method of producing a positive electrode active material, the method includes: contacting first particles that contain a lithium transition metal composite oxide with a solution containing sodium ions to obtain second particles containing the lithium transition metal composite oxide and sodium element, wherein the lithium transition metal composite oxide has a layered structure and a composition ratio of a number of moles of nickel to a total number of moles of metals other than lithium in a range of from 0.7 to less than 1; mixing the second particles and a boron compound to obtain a mixture; and heat-treating the mixture at a temperature in a range of from 100° C. to 450° C.
    Type: Application
    Filed: January 19, 2024
    Publication date: May 9, 2024
    Applicant: NICHIA CORPORATION
    Inventors: Ryuhei HATTORI, Yoshitomo MIYASHITA, Tatsuya YOKOYAMA, Chika NISHIO, Takashi SUGIMOTO
  • Patent number: 11947376
    Abstract: An input device includes an operation member vertically movably disposed on a support, urging means for urging the operation member upward, and an inclination preventive member reducing inclination of the operation member by coupling first and second ends of the operation member in a first horizontal direction and linking vertical movements of the first and second ends together. The inclination preventive member includes a main shaft extending in the first horizontal direction and rotatably and axially supported by the support, a pair of arms extending from opposite ends of the main shaft toward an identical side of a second horizontal direction crossing the first horizontal direction, and a pair of secondary shafts extending in the first horizontal direction from distal ends of the pair of arms, and rotatably and axially supported by the first and second ends. The pair of arms include short and long arms.
    Type: Grant
    Filed: October 4, 2021
    Date of Patent: April 2, 2024
    Assignee: Alps Alpine Co., Ltd.
    Inventors: Tatsuya Yokoyama, Hiroki Utagawa, Kunihiro Kamei
  • Patent number: 11942631
    Abstract: A method of producing a positive electrode active material, the method includes: contacting first particles that contain a lithium transition metal composite oxide with a solution containing sodium ions to obtain second particles containing the lithium transition metal composite oxide and sodium element, wherein the lithium transition metal composite oxide has a layered structure and a composition ratio of a number of moles of nickel to a total number of moles of metals other than lithium in a range of from 0.7 to less than 1; mixing the second particles and a boron compound to obtain a mixture; and heat-treating the mixture at a temperature in a range of from 100° C. to 450° C.
    Type: Grant
    Filed: February 16, 2023
    Date of Patent: March 26, 2024
    Assignee: NICHIA CORPORATION
    Inventors: Ryuhei Hattori, Yoshitomo Miyashita, Tatsuya Yokoyama, Chika Nishio, Takashi Sugimoto
  • Publication number: 20240083446
    Abstract: A database creation unit (154) accumulates, in a driving condition database (160), driving condition data wherein feature amounts representing features of driving operation, travelling environment information including travelling spots and road shapes, driver information including attributes of drivers and vehicle type information of vehicles, and whether the drivers have driving experiences of the vehicles are associated with driver identifiers. A driving characteristic estimation unit (155) estimates a driving characteristic of a driver presently driving a vehicle based on the driving condition database (160).
    Type: Application
    Filed: November 22, 2023
    Publication date: March 14, 2024
    Applicant: Mitsubishi Electric Corporation
    Inventors: Tatsuya YOKOYAMA, Takahisa YAMAUCHI, Yoshitsugu KAWAMURA
  • Publication number: 20230383817
    Abstract: A rotary feedthrough according to the disclosure includes: a seal partition wall dividing a space into a first space and a second space; a rotating member positioned to extend through the seal partition wall and configured to transmit a rotational driving force; a rotation input unit positioned in the first space and configured to input a driving force to the rotating member; and a rotation restraining unit positioned in the second space and configured to restrain rotation of the rotating member. The rotation restraining unit restrains rotation of the rotating member about a rotation axis exceeding a predetermined rotation angle.
    Type: Application
    Filed: May 23, 2023
    Publication date: November 30, 2023
    Inventors: Koji KUBOTA, Tatsuya YOKOYAMA
  • Patent number: 11747920
    Abstract: A compound-operation input device includes an operating member; a rotary mechanism configured to hold the operating member such that the operating member is rotatable; a slide mechanism configured to support the operating member such that the operating member is slidable in a sliding direction intersecting a rotation axis of the rotary mechanism; and a noncontact detector including a plurality of noncontact sensors and configured to detect a direction of movement and an amount of movement of a detection object, the detection object moving together with the operating member. The noncontact detector is one of a pair of noncontact detectors provided across the rotation axis from each other on a rotation locus of the detection object, the pair of noncontact detectors being at respective positions on a straight line orthogonal to the sliding direction.
    Type: Grant
    Filed: March 14, 2022
    Date of Patent: September 5, 2023
    Inventors: Tatsuya Yokoyama, Hiroki Utagawa, Takayuki Hirano
  • Publication number: 20230197943
    Abstract: A method of producing a positive electrode active material, the method includes: contacting first particles that contain a lithium transition metal composite oxide with a solution containing sodium ions to obtain second particles containing the lithium transition metal composite oxide and sodium element, wherein the lithium transition metal composite oxide has a layered structure and a composition ratio of a number of moles of nickel to a total number of moles of metals other than lithium in a range of from 0.7 to less than 1; mixing the second particles and a boron compound to obtain a mixture; and heat-treating the mixture at a temperature in a range of from 100° C. to 450° C.
    Type: Application
    Filed: February 16, 2023
    Publication date: June 22, 2023
    Applicant: NICHIA CORPORATION
    Inventors: Ryuhei HATTORI, Yoshitomo MIYASHITA, Tatsuya YOKOYAMA, Chika NISHIO, Takashi SUGIMOTO
  • Patent number: 11621415
    Abstract: A method of producing a positive electrode active material, the method includes: contacting first particles that contain a lithium transition metal composite oxide with a solution containing sodium ions to obtain second particles containing the lithium transition metal composite oxide and sodium element, wherein the lithium transition metal composite oxide has a layered structure and a composition ratio of a number of moles of nickel to a total number of moles of metals other than lithium in a range of from 0.7 to less than 1; mixing the second particles and a boron compound to obtain a mixture; and heat-treating the mixture at a temperature in a range of from 100° C. to 450° C.
    Type: Grant
    Filed: July 10, 2020
    Date of Patent: April 4, 2023
    Assignee: NICHIA CORPORATION
    Inventors: Ryuhei Hattori, Yoshitomo Miyashita, Tatsuya Yokoyama, Chika Nishio, Takashi Sugimoto
  • Publication number: 20220197409
    Abstract: A compound-operation input device includes an operating member; a rotary mechanism configured to hold the operating member such that the operating member is rotatable; a slide mechanism configured to support the operating member such that the operating member is slidable in a sliding direction intersecting a rotation axis of the rotary mechanism; and a noncontact detector including a plurality of noncontact sensors and configured to detect a direction of movement and an amount of movement of a detection object, the detection object moving together with the operating member. The noncontact detector is one of a pair of noncontact detectors provided across the rotation axis from each other on a rotation locus of the detection object, the pair of noncontact detectors being at respective positions on a straight line orthogonal to the sliding direction.
    Type: Application
    Filed: March 14, 2022
    Publication date: June 23, 2022
    Inventors: Tatsuya YOKOYAMA, Hiroki UTAGAWA, Takayuki HIRANO
  • Publication number: 20220026943
    Abstract: An input device includes an operation member vertically movably disposed on a support, urging means for urging the operation member upward, and an inclination preventive member reducing inclination of the operation member by coupling first and second ends of the operation member in a first horizontal direction and linking vertical movements of the first and second ends together. The inclination preventive member includes a main shaft extending in the first horizontal direction and rotatably and axially supported by the support, a pair of arms extending from opposite ends of the main shaft toward an identical side of a second horizontal direction crossing the first horizontal direction, and a pair of secondary shafts extending in the first horizontal direction from distal ends of the pair of arms, and rotatably and axially supported by the first and second ends. The pair of arms include short and long arms.
    Type: Application
    Filed: October 4, 2021
    Publication date: January 27, 2022
    Inventors: Tatsuya YOKOYAMA, Hiroki UTAGAWA, Kunihiro KAMEI
  • Publication number: 20210013503
    Abstract: A method of producing a positive electrode active material, the method includes: contacting first particles that contain a lithium transition metal composite oxide with a solution containing sodium ions to obtain second particles containing the lithium transition metal composite oxide and sodium element, wherein the lithium transition metal composite oxide has a layered structure and a composition ratio of a number of moles of nickel to a total number of moles of metals other than lithium in a range of from 0.7 to less than 1; mixing the second particles and a boron compound to obtain a mixture; and heat-treating the mixture at a temperature in a range of from 100° C. to 450° C.
    Type: Application
    Filed: July 10, 2020
    Publication date: January 14, 2021
    Applicant: NICHIA CORPORATION
    Inventors: Ryuhei HATTORI, Yoshitomo MIYASHITA, Tatsuya YOKOYAMA, Chika NISHIO, Takashi SUGIMOTO
  • Patent number: 10516159
    Abstract: The present invention provides a positive electrode active material for a non-aqueous secondary battery including: core particles including, as a main component, a lithium metal composite oxide represented by the following formula: LixNiyM11-y-zM2zO2 in which 0.90?x?1.50, 0.6?y?1.0, 0?z?0.02, M1 represents at least one element selected from Co, Mn and Al, and M2 represents at least one element selected from the group consisting of Zr, Ti, Mg, B and W, and containing a water-soluble lithium compound in a content of 1.0% or less in terms of a mass ratio; and a surface-treated portion obtained by treating the core particles with a coupling agent.
    Type: Grant
    Filed: May 27, 2015
    Date of Patent: December 24, 2019
    Assignee: NICHIA CORPORATION
    Inventor: Tatsuya Yokoyama
  • Patent number: 9261348
    Abstract: In a rotary input apparatus, a stationary ground electrode, a first stationary sensing electrode, and a second stationary sensing electrode are formed on a stationary facing surface of a stationary plate. The first stationary sensing electrode includes first facing portions and a first connecting portion electrically connecting the first facing portions, and the second stationary sensing electrode includes second facing portions and a second connecting portion electrically connecting the second facing portions. Each of the first facing portions has a different phase from that of the corresponding one of the second facing portions in a rotation direction. When a rotary electrode, which is provided on a rotary portion, rotates, an encoded signal of a first phase is obtained between the first stationary sensing electrode and the ground potential, and an encoded signal of a second phase is obtained between the second stationary sensing electrode and the ground potential.
    Type: Grant
    Filed: June 6, 2013
    Date of Patent: February 16, 2016
    Assignee: ALPS ELECTRIC CO., LTD.
    Inventor: Tatsuya Yokoyama
  • Publication number: 20150349336
    Abstract: The present invention provides a positive electrode active material for a non-aqueous secondary battery including: core particles including, as a main component, a lithium metal composite oxide represented by the following formula: LixNiyM11-y-zM2zO2 in which 0.90?x?1.50, 0.6?y?1.0, 0?z?0.02, M1 represents at least one element selected from Co, Mn and Al, and M2 represents at least one element selected from the group consisting of Zr, Ti, Mg, B and W, and containing a water-soluble lithium compound in a content of 1.0% or less in terms of a mass ratio; and a surface-treated portion obtained by treating the core particles with a coupling agent.
    Type: Application
    Filed: May 27, 2015
    Publication date: December 3, 2015
    Applicant: Nichia Corporation
    Inventor: Tatsuya YOKOYAMA
  • Patent number: 8884933
    Abstract: A support body holding a touch pad is mounted on a hollow support body of a base member, a space is formed in the base member and extends from its inside to an inside of the hollow support body, a shaft is provided vertically to an operation knob and extends from a back surface of a top surface portion, the touch pad has a through hole through which the shaft is inserted into the space, a rotation detection portion detecting rotating movement of an operation body and a pressing detection portion detecting reciprocating movement of the operation body are provided, and, in the space, the shaft is linked to a rotating movement portion making rotation detection movement for the rotation detection portion with rotating movement of the operation body and a pressing movement portion making pressing detection movement for the pressing detection portion with reciprocating movement of the operation body.
    Type: Grant
    Filed: April 4, 2012
    Date of Patent: November 11, 2014
    Assignee: Alps Electric Co., Ltd
    Inventors: Tatsuya Yokoyama, Anthony McCurdy, Shinya Urayama, Yu Igarashi, Shunsuke Nakazawa
  • Patent number: 8698030
    Abstract: An input device includes: a base member including a hollow support body; and an operation body supported so as to at least freely rotate relative to the hollow support body. The operation body includes an operation knob formed in a cylindrical shape with a bottom and having a top surface portion and a plate-shaped capacitance type touch pad provided on a back side of the top surface portion for detecting approach or contact of a finger with respect to the top surface portion. A support body supporting the capacitance type touch pad is mounted on the base member and supports the capacitance type touch pad through an elastic body which elastically urges the capacitance type touch pad against the top surface portion of the operation knob.
    Type: Grant
    Filed: April 4, 2012
    Date of Patent: April 15, 2014
    Assignee: Alps Electric Co., Ltd.
    Inventors: Tatsuya Yokoyama, Anthony McCurdy, Shinya Urayama, Yu Igarashi, Shunsuke Nakazawa
  • Publication number: 20130342222
    Abstract: In a rotary input apparatus, a stationary ground electrode, a first stationary sensing electrode, and a second stationary sensing electrode are formed on a stationary facing surface of a stationary plate. The first stationary sensing electrode includes first facing portions and a first connecting portion electrically connecting the first facing portions, and the second stationary sensing electrode includes second facing portions and a second connecting portion electrically connecting the second facing portions. Each of the first facing portions has a different phase from that of the corresponding one of the second facing portions in a rotation direction. When a rotary electrode, which is provided on a rotary portion, rotates, an encoded signal of a first phase is obtained between the first stationary sensing electrode and the ground potential, and an encoded signal of a second phase is obtained between the second stationary sensing electrode and the ground potential.
    Type: Application
    Filed: June 6, 2013
    Publication date: December 26, 2013
    Inventor: Tatsuya YOKOYAMA
  • Patent number: 8354606
    Abstract: A push switch includes an operating member, a holding member, a detecting electrode including a plate-shaped spring, a conductive coil spring, and a wiring substrate. The operating member includes a top portion. The rear surface of the top portion and the holding member define a storage space. The detecting electrode, received in the storage space, includes a detecting portion in resilient contact with the top portion, a base in resilient contact with the coil spring, and a height adjusting portion coupling the detecting portion to the base. The amount of compression of the detecting electrode is defined depending on the height of the storage space. The detecting portion detects a change in capacitance caused when the operation surface is touched by a human body and a detection signal indicating the change is output to the wiring substrate through the height adjusting portion, the base, and the coil spring.
    Type: Grant
    Filed: August 20, 2010
    Date of Patent: January 15, 2013
    Assignee: Alps Electric Co., Ltd.
    Inventors: Tatsuya Yokoyama, Yu Takeda
  • Patent number: D900939
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: November 3, 2020
    Inventors: Tatsuya Yokoyama, Ken Mikami, Shingo Dote