Patents by Inventor Yosuke Kita

Yosuke Kita 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: 20220241771
    Abstract: An observation sample covering implement is provided with an ultra-thin film for covering an observation sample, and a main body portion including a holding portion having opening portion formed therein, characterized in that: the ultra-thin film is formed to be larger than the opening portion; and the ultra-thin film is held onto the holding portion by being stuck by physical adsorption to at least an upper surface and a portion of a side surface of the holding portion in such a way as to close the opening portion.
    Type: Application
    Filed: May 20, 2020
    Publication date: August 4, 2022
    Inventors: Yosuke OKAMURA, Hong ZHANG, Rio KITA, Hiroshi KIMURA
  • Patent number: 11309402
    Abstract: A semiconductor structure includes a semiconductor channel of a first conductivity type located between a first and second active regions having a doping of a second conductivity type that is opposite of the first conductivity type, a gate stack structure that overlies the semiconductor channel, and includes a gate dielectric and a gate electrode, a first metal-semiconductor alloy portion embedded in the first active region, and a first composite contact via structure in contact with the first active region and the first metal-semiconductor alloy portion, and contains a first tubular liner spacer including a first annular bottom surface, a first metallic nitride liner contacting an inner sidewall of the first tubular liner spacer and having a bottom surface that is located above a horizontal plane including bottom surface of the first tubular liner spacer, and a first metallic fill material portion embedded in the first metallic nitride liner.
    Type: Grant
    Filed: March 5, 2020
    Date of Patent: April 19, 2022
    Assignee: SANDISK TECHNOLOGIES LLC
    Inventors: Fumitaka Amano, Yosuke Kita
  • Publication number: 20210280686
    Abstract: A semiconductor structure includes a semiconductor channel of a first conductivity type located between a first and second active regions having a doping of a second conductivity type that is opposite of the first conductivity type, a gate stack structure that overlies the semiconductor channel, and includes a gate dielectric and a gate electrode, a first metal-semiconductor alloy portion embedded in the first active region, and a first composite contact via structure in contact with the first active region and the first metal-semiconductor alloy portion, and contains a first tubular liner spacer including a first annular bottom surface, a first metallic nitride liner contacting an inner sidewall of the first tubular liner spacer and having a bottom surface that is located above a horizontal plane including bottom surface of the first tubular liner spacer, and a first metallic fill material portion embedded in the first metallic nitride liner.
    Type: Application
    Filed: March 5, 2020
    Publication date: September 9, 2021
    Inventors: Fumitaka AMANO, Yosuke KITA
  • Publication number: 20200381769
    Abstract: In a lithium ion secondary battery element, a positive electrode and a negative electrode are overlapped on each other so that a positive electrode active material layer with a generally rectangular shape in the positive electrode and a negative electrode active material layer with a generally rectangular shape in the negative electrode are overlapped on each other substantially perfectly and a positive electrode active material non-applied part of the positive electrode and a negative electrode active material non-applied part of the negative electrode are positioned on opposing sides of the rectangle. A border part between the negative electrode active material applied part and the negative electrode active material non-applied part is positioned closer to a peripheral side of a negative electrode current collector than a peripheral part of a positive electrode current collector.
    Type: Application
    Filed: May 27, 2020
    Publication date: December 3, 2020
    Applicant: Envision AESC Japan Ltd.
    Inventors: Yosuke Kita, Aika Kimura, Toshihiro Horiuchi
  • Publication number: 20170373340
    Abstract: An electric device that has excellent cycle durability includes: a positive electrode which includes a positive electrode active material layer containing a lithium nickel-based composite oxide and a spinel crystal-type lithium manganese composite oxide; and an electrolyte which contains a compound having an S?O bond in a molecule, in which a content ratio of the lithium nickel-based composite oxide in the positive electrode active material layer is 50% by mass or more with respect to the total mass of the lithium nickel-based composite oxide and the spinel crystal-type lithium manganese composite oxide, and a concentration of the compound having an S?O bond in a molecule in the electrolyte is 0.4 to 2.0% by mass.
    Type: Application
    Filed: December 26, 2014
    Publication date: December 28, 2017
    Inventors: Takayuki Fujii, Yosuke Kita
  • Publication number: 20170346128
    Abstract: An electric device includes: a positive electrode having at least two positive electrode active materials capable of insertion and desorption of lithium ions, at least one contains a lithium transition metal composite oxide of a layered crystal structure containing nickel; and an electrolyte which contains a compound having an S?O bond in a molecule, in which a content ratio of the lithium transition metal composite oxide is more than 50% by mass with respect to the total mass of the positive electrode active materials, a content of nickel contained in transition metal atoms other than lithium is 30 to 90% by atom in terms of composition ratio with respect to the total amount of the transition metal atoms other than lithium, and a c-axis length of the crystal structure of the lithium transition metal composite oxide is 14.180 ? or more and 14.240 ? or less.
    Type: Application
    Filed: December 26, 2014
    Publication date: November 30, 2017
    Applicant: Nissan Motor Co., Ltd.
    Inventors: Takayuki Fujii, Yosuke Kita
  • Publication number: 20090233176
    Abstract: An object of the present invention is to provide a non-aqueous electrolyte secondary battery that is excellent in cycle characteristics even in a high-temperature environment and high in thermal stability. The non-aqueous electrolyte secondary battery of the present invention comprises at least one of an active material A and an active material C, and an active material B as positive electrode active materials. The active material A is LixCoO2 (0.9?x?1.2). The active material B is LixNiyMnzM1-y-zO2 (0.9?x?1.2, 0.1?y?0.5, 0.2?z?0.5, 0.2?1?y?z?0.5 and 0.9?y/z?2.5; and M is at least one selected from the group consisting of Co, Mg, Al, Ti, Sr, Ca, V, Fe, Y, Zr, Mo, Tc, Ru, Ta, W and Re). The active material C is LixCo1-aMaO2 (0.9?x?1.2 and 0.005?a?0.1; and M is at least one selected from the group consisting of Mg, Al, Ti, Sr, Mn, Ni, Ca, V, Fe, Y, Zr, Mo, Tc, Ru, Ta, W, Re, Yb, Cu, Zn and Ba).
    Type: Application
    Filed: December 15, 2006
    Publication date: September 17, 2009
    Inventors: Yosuke Kita, Yukishige Inaba, Kunihiko Mineya, Takeshi Yao
  • Patent number: 7462421
    Abstract: A positive electrode active material for a lithium ion secondary battery is a lithium-containing composite oxide represented by the chemical formula: Lia(Co1-x-yMgxAly)bMzOc, where M is at least one element selected from the group consisting of Na and K, and the values a, b, c, x, y and z respectively satisfy 0?a?1.05, 0.005?x?0.15, 0.0001?y?0.01, 0.0002?z?0.008, 0.85?b?1.1 and 1.8?c?2.1. This makes it possible to improve a high temperature storage characteristics and safety of the lithium ion secondary battery.
    Type: Grant
    Filed: February 5, 2004
    Date of Patent: December 9, 2008
    Assignee: Panasonic Corporation
    Inventors: Hideyasu Takatsuji, Masaya Okochi, Yosuke Kita, Ryoichi Tanaka, Shoichiro Watanabe
  • Publication number: 20040157125
    Abstract: A positive electrode active material for a lithium ion secondary battery is a lithium-containing composite oxide represented by the chemical formula: Lia(Co1-x-yMgxAly)bMzOc, where M is at least one element selected from the group consisting of Na and K, and the values a, b, c, x, y and z respectively satisfy 0≦a≦1.05, 0.005≦x≦0.15, 0.0001≦y≦0.01, 0.0002≦z≦0.008, 0.85≦b≦1.1 and 1.8≦c≦2.1.
    Type: Application
    Filed: February 5, 2004
    Publication date: August 12, 2004
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Hideyasu Takatsuji, Masaya Okochi, Yosuke Kita, Ryoichi Tanaka, Shoichiro Watanabe
  • Patent number: 5866276
    Abstract: A battery structure for an electric vehicle includes a plurality of columnar component cells and a substantially square battery casing for accommodating the component cell. The battery casing includes a casing body consisting of an upper casing, a lower casing and an intermediate casing interposed between the upper casing and the lower casing, and a pair of side covers fitted to both ends of the casing body. In the battery casing, a plurality of rib walls are formed to support the component cells and to divide an interior of the battery casing into a plurality of compartments in the longitudinal direction of the battery casing. Further, the battery casing has air holes formed in top and bottom walls of the battery casing for circulating cooling air in the compartments vertically.
    Type: Grant
    Filed: September 27, 1996
    Date of Patent: February 2, 1999
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Etsuo Ogami, Tatsuo Shimizu, Yosuke Kita
  • Patent number: 5849431
    Abstract: A spirally coiled electrode assembly has positive and negative electrodes each including a web-like collector coated with an active material on opposite surfaces thereof, and separators disposed between the positive and negative electrodes. A plurality of rectangular leads extend from opposite sides of the web-like collectors in directions perpendicular to a direction in which the positive and negative electrodes and the separators are wound. Positive and negative terminals are connected to the rectangular leads extending from the respective opposite sides of the web-like collectors. The spirally coiled electrode assembly, the rectangular leads, and the positive and negative terminals are housed in a cylindrical casing whose opposite ends are closed by respective caps. The positive and negative terminals are fixed to the caps, respectively.
    Type: Grant
    Filed: September 25, 1996
    Date of Patent: December 15, 1998
    Assignee: Sony Corporation
    Inventors: Yosuke Kita, Tatuo Shimizu, Satoshi Iwatsu, Hideya Takahashi, Kiyoshi Katayama
  • Patent number: 5707758
    Abstract: A nonaqueous electrolytic secondary battery is formed by winding a thin-film positive electrode, a thin-film negative electrode, and a thin-film separator. A cap is arranged at the distal end portion of a pole bored through the cap and interposed between a nut and a disk-like portion of the pole through a ceramic washer being in contact with the nut and a ceramic patch being in contact with the disk-like portion. The ceramic washer and the ceramic patch consist of alumina or zirconia. For a bolt for interposing a bus bar or a conductive line to fix the bus bar or the conductive line, a female screw portion formed in the pole is arranged in a space of a spindle.
    Type: Grant
    Filed: September 16, 1996
    Date of Patent: January 13, 1998
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Satoshi Iwatsu, Tatsuo Shimizu, Hideya Takahashi, Yosuke Kita, Kiyoshi Katayama, Etsuo Ogami
  • Patent number: 5693430
    Abstract: A nonaqueous electrolytic secondary battery has a seal whose transparency and permeability with respect to external gas or moisture can be suppressed to a low level and which has high reliability. The nonaqueous electrolytic secondary battery has an electrolytic solution injection port (32) for injecting a nonaqueous electrolytic solution and an expansion plug (4) for air-tightly sealing the electrolytic solution injection port. A metal seal (2) is arranged between the electrolytic solution injection port (32) and the expansion plug (4). The metal seal (2) is of a metal containing aluminum as a main component, or a stainless steel, and the expansion plug (4) is of stainless steel.
    Type: Grant
    Filed: September 16, 1996
    Date of Patent: December 2, 1997
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Satoshi Iwatsu, Tatsuo Shimizu, Hideya Takahashi, Yosuke Kita, Kiyoshi Katayama, Etsuo Ogami