Patents by Inventor Kazunori Kubota

Kazunori Kubota 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: 20210096678
    Abstract: A display device featuring a touch detection and a fingerprint imaging functions is provided. A display device includes a light-emitting element and a light-receiving element. The light-emitting element includes a first pixel electrode, a light-emitting layer, and a common electrode, and the light-receiving element includes a second pixel electrode, an active layer, and the common electrode. The first pixel electrode and the second pixel electrode are provided on the same plane. The common electrode overlaps with the first pixel electrode with the light-emitting layer therebetween, and overlaps with the second pixel electrode with the active layer therebetween. A first conductive layer, a second conductive layer, and an insulating layer are provided above the common electrode. The insulating layer is provided above the first conductive layer, and the second conductive layer is provided above the insulating layer.
    Type: Application
    Filed: September 21, 2020
    Publication date: April 1, 2021
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Daisuke KUBOTA, Ryo HATSUMI, Taisuke KAMADA, Koji KUSUNOKI, Kazunori WATANABE, Susumu KAWASHIMA, Kensuke YOSHIZUMI
  • Patent number: 10852610
    Abstract: An opening insulation film covers a substrate and is in contact with a side surface of a gate electrode. The opening insulation film is provided with a first opening portion having a side surface on the gate electrode. A gate insulation film made of an oxide insulator is on the gate electrode and the opening insulation film. A semiconductor channel film made of an oxide semiconductor is on the gate insulation film and is encompassed by the first opening portion. Source and drain electrodes are on the semiconductor channel film. A source upper-layer electrode and a drain upper-layer electrode both made of an oxide are provided at least on upper surfaces of the source electrode and the drain electrode, respectively. An interlayer insulation film made of an oxide has a portion provided on the source upper-layer electrode and the drain upper-layer electrode and is in contact the semiconductor channel film.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: December 1, 2020
    Assignee: Mitsubishi Electric Corporation
    Inventors: Kazunori Inoue, Koji Oda, Takafumi Hashiguchi, Takeshi Kubota
  • Publication number: 20200350599
    Abstract: To provide a sheet formed product that, in addition to being thin, has a small groove interval, groove width, and groove depth, that has a large contact surface area with oxygen gas or hydrogen gas, that is suitable for simply and at low cost producing a lightweight compact separator, and a manufacturing method for same. In the sheet formed product (amorphous thin sheet) according to the present invention, a metal matrix on which is formed a passivation layer on a surface layer thereof and that exhibits corrosion resistance has a three-dimensional surface structure, for example a groove-like uneven shape on a surface thereof. On the front surface having the uneven shape (or also on the back surface), particles of a conductive material component penetrate the passivation layer, and are exposed on the surface without being in solid solution in the metal matrix.
    Type: Application
    Filed: October 31, 2018
    Publication date: November 5, 2020
    Inventors: MANABU KIUCHI, RYUROU KURAHACHI, YOSHIHISA FUKUDOME, KENJI KAWASAKA, KOJI KOREEDA, YOSHIO SHIN, TOSHIHARU MORIMOTO, SHIGEO KAKUDOU, KAZUNORI TAKIKAWA, HIDETAKA ITO, HIROAKI KONDO, SATOSHI KUBOTA, SOOYOUNG KIM, KAORU TSURUOKA, TOMOHIRO KANAMARU
  • Publication number: 20190293980
    Abstract: An opening insulation film covers a substrate and is in contact with a side surface of a gate electrode. The opening insulation film is provided with a first opening portion having a side surface on the gate electrode. A gate insulation film made of an oxide insulator is on the gate electrode and the opening insulation film. A semiconductor channel film made of an oxide semiconductor is on the gate insulation film and is encompassed by the first opening portion. Source and drain electrodes are on the semiconductor channel film. A source upper-layer electrode and a drain upper-layer electrode both made of an oxide are provided at least on upper surfaces of the source electrode and the drain electrode, respectively. An interlayer insulation film made of an oxide has a portion provided on the source upper-layer electrode and the drain upper-layer electrode and is in contact the semiconductor channel film.
    Type: Application
    Filed: March 8, 2019
    Publication date: September 26, 2019
    Applicant: Mitsubishi Electric Corporation
    Inventors: Kazunori INOUE, Koji ODA, Takafumi HASHIGUCHI, Takeshi KUBOTA
  • Patent number: 10409128
    Abstract: A plurality of pixel electrodes disposed in a matrix are electrically connected with a plurality of first thin film transistors, respectively. Coloring layers in a plurality of colors overlap, in a plan view, with two or more pixel electrodes adjacent to each other in one direction among the plurality of pixel electrodes. Channel layers of the first thin film transistors are covered from above by a coloring laminated body including end parts of the respective coloring layers in at least two colors among the coloring layers in a plurality of colors, the end parts overlapping with each other in the plan view.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: September 10, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Kazunori Inoue, Takaharu Konomi, Takeshi Kubota, Toshiaki Fujino
  • Publication number: 20190172848
    Abstract: A first gate insulating layer and a protective insulating layer are made of silicon nitride. A second gate insulating layer is provided on gate electrodes via a first gate insulating layer. A first intersecting layer is provided on gate lines via a first gate insulating layer. A channel layer has the same shape as the second gate insulating layer. A second intersecting layer is provided on and has the same shape as the first intersecting layer. Source lines intersect with the gate lines on the second intersecting layer. The first gate insulating layer and the protective insulating layer have gate contact holes. The protective insulating layer has source contact holes. The second gate insulating layer, the channel layer, and the first and second intersecting layers are made of oxide and have a common species of elements and a common crystal structure.
    Type: Application
    Filed: November 27, 2018
    Publication date: June 6, 2019
    Applicant: Mitsubishi Electric Corporation
    Inventors: Kazunori INOUE, Takeshi KUBOTA
  • Patent number: 9929412
    Abstract: A manufacturing method of a supported platinum catalyst, includes: generating a platinum group salt solution using platinum group salts and a complexing agent; mixing the platinum group salt solution and a carbon powder dispersion in which carbon powder is dispersed; and adding a reducing agent to a mixed solution of the platinum group salt solution and the carbon powder dispersion, and reducing the platinum group salts to allow the platinum group particles to be supported on the carbon powder.
    Type: Grant
    Filed: April 29, 2016
    Date of Patent: March 27, 2018
    Assignee: Panasonic Corporation
    Inventors: Yasuhiro Ueyama, Toshiyuki Kojima, Yasushi Taniguchi, Kazunori Kubota, Hideyuki Takahashi, Shun Yokoyama, Kazuyuki Tohji, Shuzo Tsuchida
  • Publication number: 20160372759
    Abstract: A manufacturing method of a supported platinum catalyst, includes: generating a platinum group salt solution using platinum group salts and a complexing agent; mixing the platinum group salt solution and a carbon powder dispersion in which carbon powder is dispersed; and adding a reducing agent to a mixed solution of the platinum group salt solution and the carbon powder dispersion, and reducing the platinum group salts to allow the platinum group particles to be supported on the carbon powder.
    Type: Application
    Filed: April 29, 2016
    Publication date: December 22, 2016
    Inventors: YASUHIRO UEYAMA, TOSHIYUKI KOJIMA, YASUSHI TANIGUCHI, KAZUNORI KUBOTA, HIDEYUKI TAKAHASHI, SHUN YOKOYAMA, KAZUYUKI TOHJI, SHUZO TSUCHIDA
  • Patent number: 9419301
    Abstract: An electrolyte membrane for solid polymer fuel cell includes a reinforce membrane made of nonwoven fibers and an electrolyte provided in a space among the nonwoven fibers. The nonwoven fibers have a non-uniform mass distribution in a plane of the electrolyte membrane. A mass of the nonwoven fibers per unit area in a region corresponding to at least part of a peripheral portion of a fuel cell-use gasket frame is greater than a mass of the nonwoven fibers per unit area in a region corresponding to a center portion of the gasket frame. The electrolyte membrane for solid polymer fuel cell is attached to the fuel cell-use gasket frame.
    Type: Grant
    Filed: November 14, 2011
    Date of Patent: August 16, 2016
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Masahiro Mori, Shinya Kikuzumi, Tsutomu Kawashima, Yasuhiro Ueyama, Kazunori Kubota
  • Patent number: 8745874
    Abstract: A method of manufacturing a wheel support bearing assembly having a plastically deformed portion engageable with an inclined surface portion of an annular stepped area in the inner race segment. The method includes that the plastically deformed portion, which is of a cylindrical configuration before it is deformed, is formed by pressing a crimping punch, of which front end portion outer peripheral surface is a tapered shape, axially into an inner peripheral surface of the inboard end portion of the hub axle to allow the cylindrical plastically deformed portion to be crimped in the diameter expanded condition.
    Type: Grant
    Filed: May 9, 2012
    Date of Patent: June 10, 2014
    Assignee: NTN Corporation
    Inventors: Kazunori Kubota, Kazuo Komori, Hiroshi Matsunaga, Akira Fujimura, Tetsuya Hashimoto, Masahiro Kiuchi
  • Publication number: 20130273455
    Abstract: An electrolyte membrane for solid polymer fuel cell includes a reinforce membrane made of nonwoven fibers and an electrolyte provided in a space among the nonwoven fibers. The nonwoven fibers have a non-uniform mass distribution in a plane of the electrolyte membrane. A mass of the nonwoven fibers per unit area in a region corresponding to at least part of a peripheral portion of a fuel cell-use gasket frame is greater than a mass of the nonwoven fibers per unit area in a region corresponding to a center portion of the gasket frame. The electrolyte membrane for solid polymer fuel cell is attached to the fuel cell-use gasket frame.
    Type: Application
    Filed: November 14, 2011
    Publication date: October 17, 2013
    Inventors: Masahiro Mori, Shinya Kikuzumi, Tsutomu Kawashima, Yasuhiro Ueyama, Kazunori Kubota
  • Patent number: 8293405
    Abstract: The present invention relates to a rechargeable lithium ion battery having an electrode plate with a high active material density and high electrolyte permeability. Upon producing the rechargeable lithium ion battery, hollow resin particles that can be collapsed by rolling are incorporated in a positive electrode mixture layer or a negative electrode mixture layer before the electrode mixture layer is rolled. The hollow resin particles are collapsed in the course of rolling the positive electrode mixture layer or the negative electrode mixture layer, so that the active material density can be easily increased. Further, the collapsed resin particles form unevenness on the surface of the electrode plate and also form open pores in the electrode plate, so that electrolyte permeability can be enhanced. As a result, the discharge capacity and rate characteristics of rechargeable lithium ion batteries can be increased.
    Type: Grant
    Filed: May 19, 2008
    Date of Patent: October 23, 2012
    Assignee: Panasonic Corporation
    Inventors: Kazunori Kubota, Yasuhiro Ueyama
  • Publication number: 20120216407
    Abstract: A method of manufacturing a wheel support bearing assembly having a plastically deformed portion engageable with an inclined surface portion of an annular stepped area in the inner race segment. The method includes that the plastically deformed portion, which is of a cylindrical configuration before it is deformed, is formed by pressing a crimping punch, of which front end portion outer peripheral surface is a tapered shape, axially into an inner peripheral surface of the inboard end portion of the hub axle to allow the cylindrical plastically deformed portion to be crimped in the diameter expanded condition.
    Type: Application
    Filed: May 9, 2012
    Publication date: August 30, 2012
    Applicant: NTN Corporation
    Inventors: Kazunori KUBOTA, Kazuo Komori, Hiroshi Matsunaga, Akira Fujimura, Tetsuya Hashimoto, Masahiro Kiuchi
  • Patent number: 8221004
    Abstract: A support bearing assembly includes a plural rows of rolling elements between opposed raceway surfaces of outer and inner members, respectively. The inner member is formed from a hub unit and an inner ring mounted on an outer periphery of an inboard end portion thereof. An annular stepped area is provided in an inner periphery of the inboard side of the inner ring. A crimped portion engageable with the stepped area is provided on an inboard end of the hub unit and has a cylindrical shape prior to a crimping process. By setting the amount of change in an inner diameter of the inboard end of the crimped portion within a preset range when a crimping punch is driven in, the amount of radially outward augmentation of the crimped portion is regulated.
    Type: Grant
    Filed: January 15, 2008
    Date of Patent: July 17, 2012
    Assignee: NTN Corporation
    Inventors: Akira Fujimura, Kazuo Komori, Kazunori Kubota, Tetsuya Hashimoto, Keiji Saitou
  • Patent number: 8142081
    Abstract: A wheel support bearing assembly includes an outer member, an inner member and double row balls. The inner member includes a hub unit, which has a wheel mounting flange defined in an outer periphery thereof, and an inner ring mounted on the outer periphery of the inboard end of the hub unit. A shoulder is provided in an inner peripheral edge of the inboard end face of the inner ring. A crimped portion, engageable with a stepped face of the shoulder, is provided in the inboard end of the hub unit by diameter expansion. The crimped portion is formed by crimping such diameter expanded portion which is thin walled by providing a hub inner diameter setback in the inner periphery of the inboard end of the hub unit. This thin walled portion is positioned on a side inboardly of the straight line defining a ball contact angle in the inboard raceway surface.
    Type: Grant
    Filed: August 7, 2007
    Date of Patent: March 27, 2012
    Assignee: NTN Corporation
    Inventors: Akira Fujimura, Kazuo Komori, Kazunori Kubota, Tetsuya Hashimoto
  • Publication number: 20110136010
    Abstract: A nonaqueous electrolyte secondary battery includes: a positive electrode 4 including a positive electrode current collector and a positive electrode material mixture layer containing a positive electrode active material and a binder and provided on the positive electrode current collector; a negative electrode 5; a porous insulating layer 6 interposed between the positive electrode 4 and the negative electrode 5; and a nonaqueous electrolyte. The positive electrode 4 has a tensile extension percentage of 3.0% or more. The binder is made of copolymer containing vinylidene fluoride and hexafluoropropylene.
    Type: Application
    Filed: July 15, 2009
    Publication date: June 9, 2011
    Inventors: Yoshiyuki Muraoka, Miho Tanaka, Kazunori Kubota
  • Publication number: 20110086785
    Abstract: The present invention provides a grease composition for automobile wheel bearings, which contains (a) an urea thickener represented by general formula (1); R1—NHCONH—R2—NHCONH—R3 (wherein R1 and R3 may be the same or different from each other and are each independently an aromatic hydrocarbon group having 6 to 12 carbon atoms, and R2 represents an aromatic hydrocarbon group having 6 to 15 carbon atoms); (b) an organic molybdenum compound; and (c) a base oil. The composition of the present invention can extend the flaking life and lubrication life, and reduce the fretting wear.
    Type: Application
    Filed: December 16, 2010
    Publication date: April 14, 2011
    Applicants: NTN CORPORATION, KYODO YUSHI CO., LTD.
    Inventors: Kazunori KUBOTA, Makoto OISHI
  • Patent number: 7874734
    Abstract: To provide a wheel support bearing assembly, in which the sufficient proof strength of an inner race during assemblage onto the vehicle body can be secured without its function being lowered, the wheel support bearing assembly includes an outer member, an inner member, and rows of rolling elements interposed therebetween. The inner member includes an hub axle having a flange and an inner race on an inner race mount, with raceways defined in the hub axle and the inner race. The inner race has a counterbore at its inboard end. The hub axle has a plastically deformed portion which engages an axially oriented surface of the counterbore when radially outwardly crimped and does not protrude outwardly beyond an inboard end face of the inner race. The difference P between the inner race mount and an outer peripheral face of the plastically deformed portion is 0.13 mm or more.
    Type: Grant
    Filed: June 1, 2006
    Date of Patent: January 25, 2011
    Assignee: NTN Corporation
    Inventors: Kazuo Komori, Kazunori Kubota, Hiroshi Matsunaga, Akira Fujimura, Tetsuya Hashimoto, Jun Numamoto, Masahiro Kiuchi
  • Patent number: 7874735
    Abstract: A vehicle wheel bearing apparatus has an outer member (10), an inner member (1), an inner ring (3), and double row rolling elements (6, 6) are freely rollably retained between double row outer raceway surfaces (10a, 10a) and double row inner raceway surfaces (2a, 3a). An end face at the outboard side of the inner ring (3) is adapted to abut a stepped portion (11) formed on the wheel hub (2). The inner ring (3) is secured on the wheel hub (2) by being sandwiched between a caulked portion (2c) and the stepped portion (11). A ratio (?) of the thickness (e), of an end (3c) at the outboard side of the inner ring (3) to abut the stepped portion (11), relative to the inner diameter (d) of the inner ring (3) is limited at or smaller than a predetermined value.
    Type: Grant
    Filed: August 15, 2005
    Date of Patent: January 25, 2011
    Assignee: NTN Corporation
    Inventors: Kazuo Komori, Masahiro Kiuchi, Kazunori Kubota, Yasuhiro Aritake, Takayuki Owada
  • Publication number: 20100278468
    Abstract: A support bearing assembly includes a plural rows of rolling elements (5) between opposed raceway surfaces (3, 4) of outer and inner members (1, 2), respectively. The inner member (2) is formed from a hub unit (9) and an inner ring (10) mounted on an outer periphery of an inboard end portion thereof. An annular stepped area (16) is provided in an inner periphery of the inboard side of the inner ring. A crimped portion (9b) engageable with the stepped area (16) is provided on an inboard end of the hub unit (9) and has a cylindrical shape prior to a crimping process. By setting the amount of change in an inner diameter of the inboard end of the crimped portion (9b) within a preset range when a crimping punch is driven in, the amount (D) of radially outward augmentation of the crimped portion is regulated.
    Type: Application
    Filed: January 15, 2008
    Publication date: November 4, 2010
    Inventors: Akira Fujimura, Kazuo Komori, Kazunori Kubota, Tetsuya Hashimoto, Keiji Saitou