Patents by Inventor Masashi Koyanagi

Masashi Koyanagi 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: 20240034634
    Abstract: A conductive two-dimensional particle of a layered material comprising one layer or one layer and plural layers, wherein the layer includes a layer body represented by: MmXn, and a modifier or terminal T exists on a surface of the layer body, wherein T is at least one selected from the group consisting of a hydroxyl group, a fluorine atom, a chlorine atom, an oxygen atom, or a hydrogen atom; and a monovalent metal ion, wherein the conductive two-dimensional particle does not contain an amine, a total content of chlorine and bromine in the conductive two-dimensional particle is 1,500 ppm by mass or less, and an average value of a major diameter of a two-dimensional surface of the conductive two-dimensional particle is 1.0 ?m to 20 ?m.
    Type: Application
    Filed: February 28, 2023
    Publication date: February 1, 2024
    Inventors: Masashi KOYANAGI, Akimaro YANAGIMACHI, Hiroki SAKAMOTO, Hajime SHIMIZU
  • Publication number: 20230356178
    Abstract: An adsorbent that includes: particles of a layered material including one or plural layers; and one or more metal atoms selected from Al, Mg, Ca, Ba, Fe, Zn, Mn, or Cu. The one or plural layers include a layer body represented by: MmXn wherein M is at least one metal of Group 3, 4, 5, 6, or 7, X is a carbon atom, a nitrogen atom, or a combination thereof, n is 1 to 4, and m is more than n and 5 or less. A modifier or terminal T exists on a surface of the layer body, T is at least one of a hydroxyl group, a fluorine atom, a chlorine atom, an oxygen atom, or a hydrogen atom, and the M of the layer body is bonded to at least one of a chlorine atom, a phosphorus atom, an iodine atom, or a sulfur atom.
    Type: Application
    Filed: July 7, 2023
    Publication date: November 9, 2023
    Inventors: Yuusuke OGAWA, Masashi KOYANAGI, Yuki KIMURA
  • Publication number: 20230347290
    Abstract: An adsorbent that includes a particle of a layered material that contains one or a plurality of layers; and contains Li. The one or plural layers includes a layer body represented by: MmXn where, M represents at least one Group-3, -4, -5, -6, or -7 metal, X represents a carbon atom, a nitrogen atom, or a combination thereof, n is 1 to 4, and m is larger than n, and equal to or less than 5; and a modified/terminal part T resides on a surface of the layer body, T represents at least one selected from the group consisting of hydroxy group, fluorine atom, chlorine atom, oxygen atom, and hydrogen atom, the modified/terminal part T residing on a surface of the layer body, the particle has an average thickness of 1 nm to 10 nm, and the adsorbent has a Li content of 0.0001% by mass to 0.0020% by mass.
    Type: Application
    Filed: July 6, 2023
    Publication date: November 2, 2023
    Inventors: Yuki KIMURA, Ichitaro OKAMURA, Takeshi TORITA, Masashi KOYANAGI
  • Publication number: 20230242407
    Abstract: Electroconductive two-dimensional particles composed of a layered material having one or more layers, wherein each of the one or more layers is a layer body represented by MmXn (M represents at least one group 3, 4, 5, 6 or 7 metal; X represents a carbon atom, a nitrogen atom, or a combination thereof; n represents a number from 1 to 4; m represents a number that is larger than n but not larger than 5), and a modification or terminal T (T represents at least one atom or group selected from a hydroxyl group, a fluorine atom, a chlorine atom, an oxygen atom and a hydrogen atom) is present on the surface of the layer body; the Li content is from 0.0001% by mass to 0.0020% by mass; and the average value of the lengths of two-dimensional surfaces of the electroconductive two-dimensional particles is from 1.0 ?m to 20 ?m.
    Type: Application
    Filed: April 12, 2023
    Publication date: August 3, 2023
    Inventors: Masashi KOYANAGI, Takeshi TORITA, Masanori ABE, Kosuke SUGIURA, Akimaro YANAGIMACHI, Yuusuke OGAWA
  • Publication number: 20230227317
    Abstract: A conductive two-dimensional particle of a layered material comprising one layer or one layer and plural layers, wherein the layer includes a layer body represented by: MmXn, and a modifier or terminal T exists on a surface of the layer body, wherein T is at least one selected from the group consisting of a hydroxyl group, a fluorine atom, a chlorine atom, an oxygen atom, or a hydrogen atom; and a monovalent metal ion, wherein the conductive two-dimensional particle does not contain an amine, a total content of chlorine and bromine in the conductive two-dimensional particle is 1,500 ppm by mass or less, and an average value of a major diameter of a two-dimensional surface of the conductive two-dimensional particle is 1.0 ?m to 20 ?m.
    Type: Application
    Filed: February 28, 2023
    Publication date: July 20, 2023
    Inventors: Masashi KOYANAGI, Akimaro YANAGIMACHI, Hiroki SAKAMOTO, Hajime SHIMIZU
  • Publication number: 20230207152
    Abstract: A conductive two-dimensional particle of a layered material comprising one layer or one layer and plural layers, wherein the layer includes a layer body represented by: MmXn, and a modifier or terminal T exists on a surface of the layer body, wherein T is at least one selected from the group consisting of a hydroxyl group, a fluorine atom, a chlorine atom, an oxygen atom, or a hydrogen atom, M of the layer is bonded to at least one selected from the group consisting of PO43?, I, or SO42?, the total content of chlorine and bromine is 1,500 ppm by mass or less, and an average value of major diameters of two-dimensional surfaces of the conductive two-dimensional particles is 1.0 ?m or more.
    Type: Application
    Filed: February 28, 2023
    Publication date: June 29, 2023
    Inventors: Hiroki SAKAMOTO, Masashi KOYANAGI, Akimaro YANAGIMACHI
  • Publication number: 20220406486
    Abstract: A paste that includes particles of a layered material in an ammonia aqueous solution. The particles include one or plural layers, the layers having a layer body represented by MmXn, wherein M is at least one metal of Group 3, 4, 5, 6, or 7, X is a carbon atom, a nitrogen atom, or a combination thereof, n is not less than 1 and not more than 4, and m is more than n but not more than 5, and a modifier or terminal T exists on a surface of the layer body, wherein T is at least one selected from the group consisting of a hydroxyl group, a fluorine atom, a chlorine atom, an oxygen atom, and a hydrogen atom, wherein the paste has a viscosity of 1 Pa·s or more at a shear velocity of 1/s when the paste has a solid content concentration of 1.0% by mass.
    Type: Application
    Filed: August 24, 2022
    Publication date: December 22, 2022
    Inventors: Akimaro YANAGIMACHI, Masashi KOYANAGI, Yuusuke OGAWA, Louisiane VERGER, Michel W. BARSOUM
  • Publication number: 20220157534
    Abstract: A conductive material including a plurality of particles, the plurality of particles including at least a first particle having: a layered material including one or plural layers, wherein the one or plural layers include a layer body represented by MmXn (where M is at least one metal of Group 3, 4, 5, 6, or 7, X is a carbon atom, a nitrogen atom, or a combination thereof, n is not less than 1 and not more than 4, and m is more than n but not more than 5), and a modifier or terminal T (where T is at least one selected from the group consisting of a hydroxyl group, a fluorine atom, a chlorine atom, an oxygen atom, and a hydrogen atom) existing on a surface of the layer body; and a metal material at least partially covering the layered material.
    Type: Application
    Filed: January 31, 2022
    Publication date: May 19, 2022
    Inventors: Yuusuke OGAWA, Masashi KOYANAGI, Yuta KIGUCHI
  • Patent number: 10629818
    Abstract: A compound which, when used for organic semiconductor films in organic thin-film transistors, makes the organic thin-film transistors exhibit a high carrier mobility, a material for an organic thin-film transistor for which the compound is used, a composition for an organic thin-film transistor, an organic thin-film transistor and a method for manufacturing the same, and an organic semiconductor film. The organic thin-film transistor contains a compound represented by General Formula (1) in an organic semiconductor film (organic semiconductor layer) thereof.
    Type: Grant
    Filed: February 1, 2018
    Date of Patent: April 21, 2020
    Assignees: FUJIFILM Corporation, THE UNIVERSITY OF TOKYO
    Inventors: Masashi Koyanagi, Hiroaki Tsuyama, Eiji Fukuzaki, Yoshihisa Usami, Tetsuya Watanabe, Takashi Goto, Toshihiro Okamoto, Junichi Takeya
  • Patent number: 10622572
    Abstract: An object of the present invention is to provide an organic thin-film transistor which has an organic semiconductor film produced using a compound having an excellent solubility in organic solvents and has an excellent carrier mobility, a compound, a material for an organic thin-film transistor for which the compound is used, a composition for an organic thin-film transistor, a method for manufacturing an organic thin-film transistor, and an organic semiconductor film. An organic thin-film transistor of the present invention contains a compound which is represented by General Formula (1) or General Formula (2) in an organic semiconductor film (organic semiconductor layer) thereof and has a molecular weight of 3,000 or less. In General Formula (1) and General Formula (2), at least one of R5, . . . , or R8 is a group other than a hydrogen atom.
    Type: Grant
    Filed: February 1, 2018
    Date of Patent: April 14, 2020
    Assignees: FUJIFILM Corporation, THE UNIVERSITY OF TOKYO
    Inventors: Masashi Koyanagi, Hiroaki Tsuyama, Eiji Fukuzaki, Yoshihisa Usami, Tetsuya Watanabe, Takashi Goto, Toshihiro Okamoto, Junichi Takeya
  • Patent number: 10619720
    Abstract: A transmission for a vehicle has a main shaft and a counter shaft, which are supported in a transmission case by bearings. Gears on the main shaft and gears on the counter shaft include: shifter gears which are not rotatable but axially movable relative to the shaft, and fixed gears which are rotatable but not axially movable relative to the shaft. Dog clutches are provided between the shifter gears and the fixed gears, and outer races of the bearings supporting the main and counter shafts are affixed to the transmission case. Vibration-absorbing elastic members are pressed against the outer races from axially outside and are set to have a volume of 50% or more of the volume of the outer races. With such configuration, the vibration of the bearings supporting both the main and counter shafts of the transmission is attenuated, and striking noise caused by shifting is reduced.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: April 14, 2020
    Assignee: Honda Motor Co., Ltd.
    Inventors: Yasushi Fujimoto, Kinya Mizuno, Hiroyuki Makita, Masashi Koyanagi
  • Patent number: 10529927
    Abstract: An object of the present invention is to provide an organic thin film transistor having excellent carrier mobility and excellent atmospheric stability, a novel compound, an organic thin film transistor material, an organic semiconductor film, an organic thin film transistor composition, and a method of manufacturing an organic thin film transistor using this. The organic thin film transistor according to the present invention has an organic semiconductor film containing a compound represented by Formula (1) or (2).
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: January 7, 2020
    Assignees: FUJIFILM Corporation, THE UNIVERSITY OF TOKYO
    Inventors: Eiji Fukuzaki, Hiroaki Tsuyama, Masashi Koyanagi, Yoshihisa Usami, Tetsuya Watanabe, Toshihiro Okamoto, Junichi Takeya
  • Patent number: 10337611
    Abstract: A variable-speed drive device for a power unit to be used in a vehicle equipped with a stopper pin passed through an opening in a master arm for regulating the amount of rotary movement of the master arm. Shock-absorbing device is provided on the master arm or the stopper pin At least a part of the shock-absorbing device is formed to project into the path along which the stopper pin moves relative to the opening of the master arm, from a stopper pin outer surface or from edge portions of a defining edge of the opening in the master arm onto extension of the stopper pin path. As a result, even if the master arm and the stopper pin contact one another at high speed, it is possible to suppress the sound of contact and suppress an increase in the weight of a stopper pin fixing part.
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: July 2, 2019
    Assignee: Honda Motor Co., Ltd.
    Inventors: Yasushi Fujimoto, Hiroyuki Makita, Masashi Koyanagi, Yoshinobu Shiomi, Jun Adachi, Junya Ono
  • Publication number: 20190177561
    Abstract: Provided are an aqueous pigment dispersion including: water; a water-soluble organic solvent; a pigment; a polymer dispersant including 20 mass % to 60 mass % of a constitutional unit a-1 represented by Formula 1 with respect to the total mass of the polymer dispersant, 10 mass % to 40 mass % of a constitutional unit a-2 represented by Formula 2 with respect to the total mass of the polymer dispersant, and a constitutional unit a-3 having an acidic group; and an amine compound represented by Formula 3, and an aqueous ink composition using the aqueous pigment dispersion.
    Type: Application
    Filed: February 21, 2019
    Publication date: June 13, 2019
    Inventors: Masashi KOYANAGI, Wataru KIKUCHI, Naoko NISHIMURA
  • Patent number: 10283719
    Abstract: An object of the present invention is to provide a compound which, when used for organic semiconductor films in organic thin-film transistors, makes the organic thin-film transistors exhibit a high carrier mobility, a material for an organic thin-film transistor for which the compound is used, a composition for an organic thin-film transistor, an organic thin-film transistor and a method for manufacturing the same, and an organic semiconductor film. An organic thin-film transistor of the present invention contains a compound represented by General Formula (1) in an organic semiconductor film (organic semiconductor layer) thereof.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: May 7, 2019
    Assignees: FUJIFILM Corporation, THE UNIVERSITY OF TOKYO
    Inventors: Masashi Koyanagi, Hiroaki Tsuyama, Eiji Fukuzaki, Yoshihisa Usami, Tetsuya Watanabe, Takashi Goto, Toshihiro Okamoto, Junichi Takeya
  • Patent number: 10276806
    Abstract: Provided are a coating solution for a non-light-emitting organic semiconductor device having high carrier mobility that contains a compound represented by Formula (2) and a solvent having a boiling point of equal to or higher than 100° C., an organic transistor, a compound, an organic semiconductor material for a non-light-emitting organic semiconductor device, a material for an organic transistor, a method for manufacturing an organic transistor, and a method for manufacturing an organic semiconductor film. (In Formula (2), R11 and R12 each independently represent a hydrogen atom, an alkyl group, an alkenyl group, an alkynyl group, or an alkoxy group and may have a substituent, and an aromatic portion in Formula (2) may be substituted with a halogen atom.
    Type: Grant
    Filed: April 3, 2018
    Date of Patent: April 30, 2019
    Assignees: FUJIFILM Corporation, The University of Tokyo
    Inventors: Hiroaki Tsuyama, Kimiatsu Nomura, Yoshihisa Usami, Masatoshi Yumoto, Tetsu Kitamura, Masashi Koyanagi, Tetsuya Watanabe, Toshihiro Okamoto, Junichi Takeya
  • Patent number: 10270043
    Abstract: Provided are an organic transistor with high carrier mobility having a semiconductor active layer containing a compound which is represented by the following formula and has a molecular weight of equal to or less than 3,000, a compound, an organic semiconductor material for a non-light-emitting organic semiconductor device, a material for an organic transistor, a coating solution for a non-light-emitting organic semiconductor device, a method for manufacturing an organic transistor, a method for manufacturing an organic semiconductor film, an organic semiconductor film for a non-light-emitting organic semiconductor device, and a method for manufacturing an organic semiconductor material.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: April 23, 2019
    Assignees: FUJIFILM Corporation, The University of Tokyo
    Inventors: Hiroaki Tsuyama, Kimiatsu Nomura, Yoshihisa Usami, Eiji Fukuzaki, Masashi Koyanagi, Tetsu Kitamura, Tetsuya Watanabe, Toshihiro Okamoto, Junichi Takeya
  • Patent number: 10270044
    Abstract: Provided are a coating solution for a non-light-emitting organic semiconductor device having high carrier mobility that contains a compound represented by Formula (2) and a solvent having a boiling point of equal to or higher than 100° C., an organic transistor, a compound, an organic semiconductor material for a non-light-emitting organic semiconductor device, a material for an organic transistor, a method for manufacturing an organic transistor, and a method for manufacturing an organic semiconductor film. (In Formula (2), R11 and R12 each independently represent a hydrogen atom, an alkyl group, an alkenyl group, an alkynyl group, or an alkoxy group and may have a substituent, and an aromatic portion in Formula (2) may be substituted with a halogen atom.
    Type: Grant
    Filed: November 5, 2018
    Date of Patent: April 23, 2019
    Assignees: FUJIFILM Corporation, The University of Tokyo
    Inventors: Hiroaki Tsuyama, Kimiatsu Nomura, Yoshihisa Usami, Masatoshi Yumoto, Tetsu Kitamura, Masashi Koyanagi, Tetsuya Watanabe, Toshihiro Okamoto, Junichi Takeya
  • Publication number: 20190074452
    Abstract: Provided are a coating solution for a non-light-emitting organic semiconductor device having high carrier mobility that contains a compound represented by Formula (2) and a solvent having a boiling point of equal to or higher than 100° C., an organic transistor, a compound, an organic semiconductor material for a non-light-emitting organic semiconductor device, a material for an organic transistor, a method for manufacturing an organic transistor, and a method for manufacturing an organic semiconductor film. (In Formula (2), R11 and R12 each independently represent a hydrogen atom, an alkyl group, an alkenyl group, an alkynyl group, or an alkoxy group and may have a substituent, and an aromatic portion in Formula (2) may be substituted with a halogen atom.
    Type: Application
    Filed: November 5, 2018
    Publication date: March 7, 2019
    Applicants: FUJIFILM Corporation, The University of Tokyo
    Inventors: Hiroaki TSUYAMA, Kimiatsu NOMURA, Yoshihisa USAMI, Masatoshi YUMOTO, Tetsu KITAMURA, Masashi KOYANAGI, Tetsuya WATANABE, Toshihiro OKAMOTO, Junichi TAKEYA
  • Patent number: 10131656
    Abstract: An object of the present invention is to provide an organic thin film transistor that has an organic semiconductor film manufactured by using a compound having excellent solubility to an organic solvent and that has excellent carrier mobility, a novel compound, an organic thin film transistor material, an organic semiconductor film, an organic thin film transistor composition, and a method of manufacturing an organic thin film transistor using this. The organic thin film transistor according to the present invention has an organic semiconductor film containing a compound represented by Formula (1).
    Type: Grant
    Filed: February 2, 2018
    Date of Patent: November 20, 2018
    Assignees: FUJIFILM Corporation, THE UNIVERSITY OF TOKYO
    Inventors: Hiroaki Tsuyama, Masashi Koyanagi, Eiji Fukuzaki, Masatoshi Yumoto, Yoshihisa Usami, Tetsuya Watanabe, Toshihiro Okamoto, Junichi Takeya