Patents by Inventor Norihisa Yamamoto

Norihisa Yamamoto 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: 20210066716
    Abstract: This negative electrode active material for a secondary cell which is one aspect of the present disclosure comprises: a silicate phase that contains Li, Si, and Mx (Mx alkali metal, alkaline earth metal, and an element other than Si); silicon particles dispersed in the silicate phase; and oxide particles that contain Zr dispersed in the silicate phase. The content of each element with respect to the total of the elements other than oxygen in the silicate phase is 3 to 45 mol % for Li, 40 to 78 mol % for Si, and 1 to 40 mol % for Mx.
    Type: Application
    Filed: January 21, 2019
    Publication date: March 4, 2021
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Yohei Uchiyama, Norihisa Yamamoto, Tatsuya Akira
  • Publication number: 20210057727
    Abstract: A negative electrode active substance for a secondary battery, which is one embodiment of the present disclosure, comprises: a silicate phase which contains Li, Si and Mx (Mx is an alkali metal, an alkaline earth metal or an element other than Si); silicon particles dispersed in the silicate phase; and metal particles which are dispersed in the silicate phase and are constituted mainly from one or more metals selected from among Fe, Cr, Ni, Mn, Cu, Mo, Zn and Al or an alloy of these. In the silicate phase, the content of the following elements, relative to the total amount of elements other than oxygen, is: 3-45 mol % of Li; 40-78 mol % of Si; and 1-40 mol % of Mx.
    Type: Application
    Filed: January 21, 2019
    Publication date: February 25, 2021
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Tatsuya Akira, Yohei Uchiyama, Norihisa Yamamoto
  • Publication number: 20200365898
    Abstract: Negative electrode active material particles according to the present invention have composite particles that include: a sodium silicate phase with a Vickers hardness of 150 Hv or greater, and silicon particles dispersed in the sodium silicate phase.
    Type: Application
    Filed: October 26, 2018
    Publication date: November 19, 2020
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Yohei Uchiyama, Norihisa Yamamoto, Tatsuya Akira, Kazuro Hayashida
  • Publication number: 20200365879
    Abstract: Provided are negative electrode active substance particles containing: a lithium silicate phase represented by Li2zSiO(2+z){0<z<2}; silicon particles dispersed in the lithium silicate phase; and metal particles that include a metal, an alloy, or a metal compound as the primary component and that are dispersed in the lithium silicate phase. The aspect ratio of the metal particles is 2.7 or greater.
    Type: Application
    Filed: October 17, 2018
    Publication date: November 19, 2020
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Norihisa Yamamoto, Hiroshi Minami
  • Publication number: 20200350563
    Abstract: A negative electrode active material for non-aqueous electrolyte secondary batteries, including: lithium silicate composite particles including a lithium silicate phase and silicon particles dispersed in the lithium silicate phase, the lithium silicate phase being an oxide phase including Li, Si, O, and M, where M is an element other than the following elements: Group 1 elements of alkali metals, Group 16 elements of oxygen group, Group 18 elements of rare gas, and Si. An amount of each element relative to a total amount of Li, Si and M in the lithium silicate phase is 3 to 55 mol % for Li, 25 mol % or more for Si, and 3 to 50 mol % for M. A carbon material is present inside the lithium silicate composite particles; and an area ratio of the carbon material occupying a cross section of the composite particles is 0.008 to 6%.
    Type: Application
    Filed: October 29, 2018
    Publication date: November 5, 2020
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Yohei Uchiyama, Norihisa Yamamoto, Tatsuya Akira
  • Publication number: 20200350591
    Abstract: A lithium battery including a negative electrode having a negative electrode active material layer that contains lithium silicate particles and a binder. The lithium silicate particles include composite particles including a lithium silicate phase and silicon particles dispersed in the lithium silicate phase, wherein a carbon material is present inside the composite particles, and an area ratio of the carbon material occupying a cross section of the composite particles is 0.008 to 6%. The binder includes at least a first resin, wherein the first resin is at least cue selected from the group consisting of polyacrylic acid, a polyacrylic acid salt, and their derivatives. The first resin is contained in an amount of 2 mass % or less in the negative electrode active material layer.
    Type: Application
    Filed: October 26, 2018
    Publication date: November 5, 2020
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Yohei Uchiyama, Taisuke Yamamoto, Tatsuya Akira, Norihisa Yamamoto, Hiroshi Minami
  • Publication number: 20200321611
    Abstract: A negative electrode active substance particle according to one embodiment of the present invention, comprises a mother particle that has: a silicate phase that includes Na, Si, and at least one element selected from M, M1, M2, M3 and M4 (M is an alkali earth metal, and M1, M2, M3 and M4 are elements other than alkali metals, alkali earth metals or Si); and silicon particles dispersed in the silicate phase. The contents of the elements in the silicate phase are: 9-52 mol % of Na; 3-50 mol % of M, M1, M2, M3 and M4; and at least 25 mol % of Si.
    Type: Application
    Filed: December 26, 2018
    Publication date: October 8, 2020
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Yohei Uchiyama, Norihisa Yamamoto, Tatsuya Akira
  • Publication number: 20200020932
    Abstract: Disclosed is a negative electrode material for a non-aqueous electrolyte secondary battery, including: a lithium silicate phase; silicon particles dispersed in the lithium silicate phase; and at least one element Me dispersed in the lithium silicate phase, and selected from the group consisting of a rare-earth element and an alkaline-earth metal. The composition of the lithium silicate phase is represented, for example, by the formula: Li2zSiO2+z, and satisfies 0<z<2, and the element Me is dispersed in the lithium silicate phase, for example, as an Me oxide.
    Type: Application
    Filed: February 16, 2018
    Publication date: January 16, 2020
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Taisuke Asano, Yohei Uchiyama, Taisuke Yamamoto, Tatsuya Akira, Norihisa Yamamoto, Hiroshi Minami
  • Patent number: 10516158
    Abstract: The initial charge/discharge efficiency and cycle characteristics of a non-aqueous electrolyte secondary battery that contains a silicon material as a negative-electrode active material are improved. A negative-electrode active material particle (10) according to an embodiment contains a base particle (13), which includes a lithium silicate phase (11) represented by Li2zSiO(2+z) {0<z<2} and silicon particles (12) dispersed in the lithium silicate phase (11). The symmetry determined by an image analysis of a backscattered electron image of a cross section of the base particle (13) is 1.5 or less. The symmetry refers to the ratio (b/a) of the half width at half maximum b of a peak on the high-gray-scale side to the half width at half maximum a of the peak on the low-gray-scale side in a histogram of color distinction based on 256 gray levels for each pixel of the backscattered electron image.
    Type: Grant
    Filed: January 18, 2016
    Date of Patent: December 24, 2019
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Norihisa Yamamoto, Taizou Sunano, Hiroshi Minami, Yoshio Kato, Yohei Uchiyama
  • Patent number: 10483528
    Abstract: The initial charge/discharge efficiency and cycle characteristics of a non-aqueous electrolyte secondary battery that contains a silicon material as a negative-electrode active material are improved. A negative-electrode active material particle (10) according to an embodiment contains a base particle (13), which includes a lithium silicate phase (11) represented by Li2zSiO(2+z) {0<z<2} and silicon particles (12) dispersed in the lithium silicate phase (11). The symmetry determined by an image analysis of a backscattered electron image of a cross section of the base particle (13) is 1.5 or less. The symmetry refers to the ratio (b/a) of the half width at half maximum b of a peak on the high-gray-scale side to the half width at half maximum a of the peak on the low-gray-scale side in a histogram of color distinction based on 256 gray levels for each pixel of the backscattered electron image.
    Type: Grant
    Filed: January 18, 2016
    Date of Patent: November 19, 2019
    Assignee: SANYO Electronics Co., Ltd.
    Inventors: Norihisa Yamamoto, Taizou Sunano, Hiroshi Minami, Yoshio Kato, Yohei Uchiyama
  • Publication number: 20190319261
    Abstract: Disclosed is a negative electrode material including: a lithium silicate phase that contains a lithium silicate; and silicon particles that are dispersed in the lithium silicate phase, wherein the silicon particles have a crystallite size of 10 nm or more, and the lithium silicate has a composition represented by the following formula: Li2Si2O5.(x?2)SiO2, where 2<x?18 is satisfied.
    Type: Application
    Filed: November 17, 2017
    Publication date: October 17, 2019
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Yohei Uchiyama, Taisuke Yamamoto, Tatsuya Akira, Norihisa Yamamoto, Hiroshi Minami
  • Patent number: 10012182
    Abstract: A fuel vapor processing apparatus may include a diaphragm valve disposed in a vapor path communicating between a fuel tank and a canister. The diaphragm valve may include a valve chamber, a backpressure chamber, a diaphragm partitioning the valve chamber and the backpressure chamber from each other; and a valve member attached to the diaphragm. The backpressure chamber is not directly opened to an outside of the diaphragm valve. A control valve device may control a pressure within the backpressure chamber of the diaphragm valve.
    Type: Grant
    Filed: March 7, 2016
    Date of Patent: July 3, 2018
    Assignee: AISAN KOGYO KABUSHIKI KAISHA
    Inventors: Tetsuya Ishikawa, Norihisa Yamamoto
  • Publication number: 20180141024
    Abstract: A molded adsorbent for adsorbing and desorbing fuel vapor includes a solid or hollow columnar shaped body. At least one of the axially opposite end surfaces of the molded adsorbent includes an inclined cut surface portion oriented at an acute angle relative to the longitudinal axis, a concave cut surface portion, or a convex cut surface portion.
    Type: Application
    Filed: November 24, 2017
    Publication date: May 24, 2018
    Applicant: AISAN KOGYO KABUSHIKI KAISHA
    Inventors: Shinya Takeshita, Norihisa Yamamoto
  • Publication number: 20170324083
    Abstract: The initial charge/discharge efficiency and cycle characteristics of a non-aqueous electrolyte secondary battery that contains a silicon material as a negative-electrode active material are improved. A negative-electrode active material particle (10) according to an embodiment contains a base particle (13), which includes a lithium silicate phase (11) represented by Li2zSiO(2+z) {0<z<2} and silicon particles (12) dispersed in the lithium silicate phase (11). The symmetry determined by an image analysis of a backscattered electron image of a cross section of the base particle (13) is 1.5 or less. The symmetry refers to the ratio (b/a) of the half width at half maximum b of a peak on the high-gray-scale side to the half width at half maximum a of the peak on the low-gray-scale side in a histogram of color distinction based on 256 gray levels for each pixel of the backscattered electron image.
    Type: Application
    Filed: January 18, 2016
    Publication date: November 9, 2017
    Applicant: Sanyo Electric Co., Ltd.
    Inventors: Norihisa YAMAMOTO, Taizou SUNANO, Hiroshi MINAMI, Yoshio KATO, Yohei UCHIYAMA
  • Patent number: 9549159
    Abstract: An image projection apparatus includes a light modulation device that modulates light according to image data; a projecting unit that projects modulated light; an angle-of-view deriving unit that derives an angle of view at which modulated light is projected; a projection-direction changing unit that changes a projection direction from a first direction to a second direction; a projection-angle deriving unit that derives a projection angle between the first direction and a changed projection direction; a storage unit that stores image data; and an image cutting unit that generates cut-out image data by cutting a part of the image data based on the angle of view and the projection angle as image data projected from the first direction through the second direction, and the minimum variable angle is determined based on the angle of view and a size of an effective region of the modulated light.
    Type: Grant
    Filed: November 14, 2014
    Date of Patent: January 17, 2017
    Assignee: JVC KENWOOD Corporation
    Inventors: Ryo Nishima, Katsumi Watanuki, Hisato Seki, Kenji Yasui, Norihisa Yamamoto, Shunichi Shichijo
  • Publication number: 20160265481
    Abstract: A fuel vapor processing apparatus may include a diaphragm valve disposed in a vapor path communicating between a fuel tank and a canister. The diaphragm valve may include a valve chamber, a backpressure chamber, a diaphragm partitioning the valve chamber and the backpressure chamber from each other; and a valve member attached to the diaphragm. The backpressure chamber is not directly opened to an outside of the diaphragm valve. A control valve device may control a pressure within the backpressure chamber of the diaphragm valve.
    Type: Application
    Filed: March 7, 2016
    Publication date: September 15, 2016
    Applicant: AISAN KOGYO KABUSHIKI KAISHA
    Inventors: Tetsuya ISHIKAWA, Norihisa YAMAMOTO
  • Patent number: 9376990
    Abstract: An evaporated fuel treatment apparatus includes a passage circulating fluid being formed therein, a tank port and a purge port being formed at one end side of the passage, and an atmosphere port being formed at another end side of the passage. At least four adsorbent layers in which adsorbent adsorbing fuel components is filled are provided in the passage. The evaporated fuel treatment apparatus has a main adsorbent layer and a region provided on an atmosphere port side of the main adsorbent layer. At least three adsorbent layers that are different from the main adsorbent layer, and separating portions that separate the adsorbent layers which are adjacent to each other are provided in the region. The volume of at least one separating portion in the region is made larger than a total of the volumes of adsorbent layers that sandwich the separating portion therebetween.
    Type: Grant
    Filed: July 2, 2014
    Date of Patent: June 28, 2016
    Assignee: Aisan Kogyo Kabushiki Kaisha
    Inventors: Shinya Takeshita, Norihisa Yamamoto
  • Patent number: 9249762
    Abstract: In an evaporated fuel treatment apparatus mounted laterally, in order to effectively utilize adsorbent of an upper portion in an adsorption chamber of the evaporated fuel treatment apparatus, the evaporated fuel treatment apparatus comprises: one or more adsorption chambers filled with the adsorbent that adsorbs and desorbs evaporated fuel generated in a fuel tank; a tank port; a purge port; and an atmosphere port, and in the evaporated fuel treatment apparatus, a first filter is provided in a boundary portion between the adsorption chamber located closest to the tank port and the tank port, and an amount of gas, having flowed in the adsorption chamber from the tank port, passing through an upper portion of the first filter is made larger than that of the gas passing through a lower portion thereof.
    Type: Grant
    Filed: May 23, 2013
    Date of Patent: February 2, 2016
    Assignee: Aisan Kogyo Kabushiki Kaisha
    Inventor: Norihisa Yamamoto
  • Patent number: 9228540
    Abstract: A fuel vapor processing apparatus may include a case defining therein a first adsorption chamber, a second adsorption chamber and a non-adsorption chamber communicating between the first adsorption chamber and the second adsorption chamber. The cross sectional flow area of the first adsorption chamber may be smaller than the cross sectional flow area of the second adsorption chamber.
    Type: Grant
    Filed: June 30, 2012
    Date of Patent: January 5, 2016
    Assignees: AISAN KOGYO KABUSHIKI KAISHA, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Norihisa Yamamoto, Tsuneyuki Kurata, Masamitsu Hayakawa, Ryuji Kosugi, Shinji Shimokawa, Yuusaku Nishimura, Shinsuke Kiyomiya, Masahide Kobayashi
  • Patent number: 9189724
    Abstract: The present invention provides a noncontact interface technique capable of performing communication operation without stopping an internal operation even when a clock signal cannot be extracted from a carrier wave. In a semiconductor device that receives a modulated carrier wave from an antenna, generates an internal clock signal on the basis of a clock signal extracted from the received carrier wave, and performs operation synchronously with the internal clock signal, a PLL circuit that receives the extracted clock signal and generates the internal clock signal is provided with a voltage control oscillation function. In the case where the clock signal extracted from the carrier wave is discretely interrupted, the function makes the internal clock signal maintained at a frequency immediately before the interruption. With the configuration, even when the clock signal extracted from the carrier wave is interrupted, internal data processes such as decoding and bus interfacing can be continued.
    Type: Grant
    Filed: November 18, 2014
    Date of Patent: November 17, 2015
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Shin Morita, Norihisa Yamamoto