Patents by Inventor Yoshiaki Obana

Yoshiaki Obana 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: 9583754
    Abstract: A heat-resistant insulating layer-provided separator includes a polyolefin layer and a heat-resistant insulating layer formed on one or both surfaces of the polyolefin layer and containing a heat-resistant resin and an oxidation-resistant ceramic particle. The heat-resistant insulating layer contains the oxidation-resistant ceramic particle in a proportion of from 60 to 90%.
    Type: Grant
    Filed: September 17, 2008
    Date of Patent: February 28, 2017
    Assignee: Sony Corporation
    Inventors: Yoshiaki Obana, Atsushi Kajita, Yukako Teshima, Kenichi Ogawa, Hisashi Tsujimoto
  • Publication number: 20170054089
    Abstract: There is provided a photoelectric conversion film including a quinacridone derivative represented by the following General formula (1) and a subphthalocyanine derivative represented by the following General formula (2).
    Type: Application
    Filed: April 8, 2015
    Publication date: February 23, 2017
    Inventors: Yoshiaki OBANA, Yuki NEGISHI, Yuta HASEGAWA, Ichiro TAKEMURA, Osamu ENOKI, Hideaki MOGI, Nobuyuki MATSUZAWA
  • Patent number: 9350023
    Abstract: A negative electrode for a nonaqueous electrolyte secondary cell, includes: a negative electrode active material layer containing a negative electrode active material, a polyvinylidene fluoride component including polyvinylidene fluoride and/or a derivative having polyvinylidene fluoride as a main chain, a styrene-butadiene component including a styrene-butadiene polymer and/or a derivative having a styrene-butadiene polymer as a main chain, a nonionic surfactant having an HLB of 10 to 15, and N-methylpyrrolidone; and a foil-shaped negative electrode current collector provided with the negative electrode active material layer on at least one principal surface of the collector.
    Type: Grant
    Filed: August 24, 2010
    Date of Patent: May 24, 2016
    Assignee: Sony Corporation
    Inventors: Toshikazu Nakamura, Hisashi Tsujimoto, Yoshiaki Obana
  • Publication number: 20150318533
    Abstract: A battery capable of improving the energy density and improving the battery characteristics such as cycle characteristics and high temperature storage characteristics. A cathode and an anode are oppositely arranged with a separator in between. The open circuit voltage in full charge is in the range from 4.25 V to 6.00 V. The separator has a base material layer and a surface layer. The surface layer opposed to the cathode is formed from at least one from the group consisting of polyvinylidene fluoride, polytetrafluoroethylene, polypropylene, and aramid.
    Type: Application
    Filed: July 10, 2015
    Publication date: November 5, 2015
    Inventors: Kenichi Ogawa, Hiroyuki Akashi, Kumiko Takagi, Tomitaro Hara, Yoshiaki Obana, Yosuke Hosoya
  • Publication number: 20140174524
    Abstract: Provided are a counter electrode, which is excellent in electrolytic solution resistance and electrical conductivity, and which is capable of corresponding to an application process carried out by pattern printing during a manufacturing process, a photoelectric conversion element using the counter electrode, and a method for manufacturing the same. A dye-sensitized photoelectric conversion element has a structure in which an electrolyte layer is filled between a porous electrode to which a photosensitizing dye is adsorbed and a counter electrode. The counter electrode includes: a metal counter electrode; a conductive primer layer that contains conductive carbon, and at least one resin selected among a polyamide imide resin, a polyamide resin, and polyimide resin as a binder resin; and a catalyst layer containing conductive carbon and an inorganic binder. The metal counter electrode and the catalyst layer are formed to come into close contact with each other through the conductive primer layer.
    Type: Application
    Filed: June 22, 2012
    Publication date: June 26, 2014
    Applicant: Sony Corporation
    Inventors: Yoshiaki Obana, Keishi Tada, Harumi Takada, Ryo Sasaki, Yusuke Suzuki
  • Publication number: 20130319512
    Abstract: An electrode includes carbon black, a fibrous carbon material and an organic binder. The carbon black (A) and the fibrous carbon material (B) are in a mass ratio (B/A) within the range of from 10/90 to 50/50.
    Type: Application
    Filed: May 28, 2013
    Publication date: December 5, 2013
    Applicant: Sony Corporation
    Inventors: Yoshiaki Obana, Ryo Sasaki, Harumi Shibata, Yusuke Suzuki
  • Patent number: 8586977
    Abstract: A method of manufacturing an organic EL display unit and an organic EL display unit capable of improving light emitting efficiency and life of blue are provided. A hole injection layer are formed on a lower electrode. For a red organic EL device and a green organic EL device, a hole transport layer, a red light emitting layer, and a green light emitting layer made of a polymer material are formed. A hole transport layer made of a low molecular material is formed on the hole injection layer of a blue organic EL device. A blue light emitting layer made of a low molecular material is formed on the red light emitting layer, the green light emitting layer, and the hole transport layer for the blue organic EL device. An electron transport layer, an electron injection layer, and an upper electrode are sequentially formed on the blue light emitting layer.
    Type: Grant
    Filed: July 31, 2012
    Date of Patent: November 19, 2013
    Assignee: Sony Corporation
    Inventors: Yoshiaki Obana, Tomoyuki Higo
  • Patent number: 8581297
    Abstract: A method of manufacturing an organic EL display unit and an organic EL display unit capable of improving light emitting efficiency and life of blue are provided. A hole injection layer are formed on a lower electrode. For a red organic EL device and a green organic EL device, a hole transport layer, a red light emitting layer, and a green light emitting layer made of a polymer material are formed. A hole transport layer made of a low molecular material is formed on the hole injection layer of a blue organic EL device. A blue light emitting layer made of a low molecular material is formed on the red light emitting layer, the green light emitting layer, and the hole transport layer for the blue organic EL device. An electron transport layer, an electron injection layer, and an upper electrode are sequentially formed on the blue light emitting layer.
    Type: Grant
    Filed: November 8, 2010
    Date of Patent: November 12, 2013
    Assignee: Sony Corporation
    Inventors: Yoshiaki Obana, Tomoyuki Higo
  • Publication number: 20120295381
    Abstract: A method of manufacturing an organic EL display unit and an organic EL display unit capable of improving light emitting efficiency and life of blue are provided. A hole injection layer are formed on a lower electrode. For a red organic EL device and a green organic EL device, a hole transport layer, a red light emitting layer, and a green light emitting layer made of a polymer material are formed. A hole transport layer made of a low molecular material is formed on the hole injection layer of a blue organic EL device. A blue light emitting layer made of a low molecular material is formed on the red light emitting layer, the green light emitting layer, and the hole transport layer for the blue organic EL device. An electron transport layer, an electron injection layer, and an upper electrode are sequentially formed on the blue light emitting layer.
    Type: Application
    Filed: July 31, 2012
    Publication date: November 22, 2012
    Applicant: SONY CORPORATION
    Inventors: Yoshiaki Obana, Tomoyuki Higo
  • Publication number: 20120231347
    Abstract: A battery capable of improving the energy density and improving the cycle characteristics is provided. The battery includes a cathode, an anode arranged opposite of the cathode and an electrolyte in between the cathode and the anode. The amount of cathode active material and the amount of anode active material is such that the open circuit battery voltage is within the range from 4.25 volts to 6.00 volts, the electrolyte contains an electrolytic solution and a polymer containing vinylidene fluoride, and the cathode contains lithium complex oxides.
    Type: Application
    Filed: May 24, 2012
    Publication date: September 13, 2012
    Applicant: SONY CORPORATION
    Inventors: Tomitaro Hara, Hiroyuki Akashi, Kenichi Ogawa, Yoshiaki Obana, Yosuke Hosoya
  • Patent number: 8221921
    Abstract: A non-aqueous electrolyte battery has a cathode, an anode, an electrolyte, and a separator. The separator is a microporous resin film of a single layer made of a resin material in which at least one kind of insulating and flame-retarding fiber is dispersed in a polyolefin resin.
    Type: Grant
    Filed: March 25, 2008
    Date of Patent: July 17, 2012
    Assignee: Sony Corporation
    Inventors: Kenichi Ogawa, Hiroyuki Akashi, Yoshiaki Obana, Atsushi Kajita, Yukako Teshima
  • Publication number: 20120031483
    Abstract: A photoelectric conversion element including a dye-sensitized solar cell is provided. The photoelectric conversion element may include an electrode having a titanium oxide layer containing spindle-shaped particles of titanium oxide of anatase type. A process for manufacturing the photoelectric conversion device is also provided. The process may include steps of providing a transparent conductive layer, forming a titanium oxide layer containing particles of peroxo-modified titanium oxide of anatase type adjacent to the transparent conductive layer, and baking the titanium oxide layer. Forming the titanium oxide layer may include forming a porous titanium oxide layer and dipping the porous titanium oxide layer in a dispersion containing particles of peroxo-modified titanium oxide of anatase type to the porous titanium oxide layer.
    Type: Application
    Filed: June 15, 2011
    Publication date: February 9, 2012
    Applicant: Sony Corporation
    Inventors: Yoshiaki Obana, Yusuke Suzuki, Yosuke Murakami
  • Publication number: 20110226992
    Abstract: An organic electroluminescence material composition including an organic electroluminescence material and a solvent, the organic electroluminescence material being a naphthacene derivative, and the solvent being a solvent which is represented by the following formula (1).
    Type: Application
    Filed: September 16, 2009
    Publication date: September 22, 2011
    Inventors: Motohiro Takeshima, Kiyoshi Ikeda, Takayasu Sado, Tetsuya Inoue, Yoshiaki Obana, Yukio Miyaki, Keisuke Matsuo, Yasunori Kijima
  • Publication number: 20110220886
    Abstract: An organic electroluminescence material composition including a solvent represented by the following formula (1) and an anthracene derivative: wherein ring A is an aliphatic ring or an aromatic ring having 4 to 8 carbon atoms; R1 is a substituent on the ring A; and R2 and R3 are substituents connected to adjacent carbon atoms on the ring A.
    Type: Application
    Filed: September 16, 2009
    Publication date: September 15, 2011
    Applicants: IDEMITSU KOSAN CO., LTD., SONY CORPORATION
    Inventors: Motohiro Takeshima, Atau Ioku, Tetsuya Inoue, Yoshiaki Obana, Yukio Miyaki, Keisuke Matsuo, Yasunori Kijima
  • Patent number: 8017263
    Abstract: A battery in which a cathode and an anode are arranged so as to face each other an having a separator in between is provided. The separator is formed from a plurality of laminated microporous membranes and has a film thickness of 10x ?m and a piercing strength of 150x gf or more, where 1?x?2. The air permeability of one layer among the plurality of microporous membranes is equal to or larger than 10% of the air permeability of the whole separator.
    Type: Grant
    Filed: January 23, 2007
    Date of Patent: September 13, 2011
    Assignee: Sony Corporation
    Inventors: Kenichi Ogawa, Hiroyuki Akashi, Yosuke Konishi, Atsushi Kajita, Yoshiaki Obana, Tomitaro Hara
  • Patent number: 7951491
    Abstract: A positive electrode includes a collector and a positive electrode mixture layer formed on the collector and containing a polyacrylonitrile based resin-containing binder and a positive electrode active material. The polyacrylonitrile in the positive electrode mixture layer is crosslinked and carbonized.
    Type: Grant
    Filed: November 3, 2008
    Date of Patent: May 31, 2011
    Assignee: Sony Corporation
    Inventors: Takashi Tokunaga, Yoshiaki Obana, Toshikazu Nakaura, Hiroyuki Akashi
  • Publication number: 20110114927
    Abstract: A method of manufacturing an organic EL display unit and an organic EL display unit capable of improving light emitting efficiency and life of blue are provided. A hole injection layer are formed on a lower electrode. For a red organic EL device and a green organic EL device, a hole transport layer, a red light emitting layer, and a green light emitting layer made of a polymer material are formed. A hole transport layer made of a low molecular material is formed on the hole injection layer of a blue organic EL device. A blue light emitting layer made of a low molecular material is formed on the red light emitting layer, the green light emitting layer, and the hole transport layer for the blue organic EL device. An electron transport layer, an electron injection layer, and an upper electrode are sequentially formed on the blue light emitting layer.
    Type: Application
    Filed: November 8, 2010
    Publication date: May 19, 2011
    Applicant: SONY CORPORATION
    Inventors: Yoshiaki Obana, Tomoyuki Higo
  • Publication number: 20110052984
    Abstract: A negative electrode for a nonaqueous electrolyte secondary cell, includes: a negative electrode active material layer containing a negative electrode active material, a polyvinylidene fluoride component including polyvinylidene fluoride and/or a derivative having polyvinylidene fluoride as a main chain, a styrene-butadiene component including a styrene-butadiene polymer and/or a derivative having a styrene-butadiene polymer as a main chain, a nonionic surfactant having an HLB of 10 to 15, and N-methylpyrrolidone; and a foil-shaped negative electrode current collector provided with the negative electrode active material layer on at least one principal surface of the collector.
    Type: Application
    Filed: August 24, 2010
    Publication date: March 3, 2011
    Applicant: SONY CORPORATION
    Inventors: Toshikazu Nakamura, Hisashi Tsujimoto, Yoshiaki Obana
  • Publication number: 20100255362
    Abstract: A battery in which a cathode and an anode are arranged so as to face each other an having a separator in between is provided. The separator is formed from a plurality of laminated microporous membranes and has a film thickness of 10x ?m and a piercing strength of 150x gf or more, where 1?x?2. The air permeability of one layer among the plurality of microporous membranes is equal to or larger than 10% of the air permeability of the whole separator.
    Type: Application
    Filed: January 23, 2007
    Publication date: October 7, 2010
    Applicant: Sony Corporation
    Inventors: Kenichi Ogawa, Hiroyuki Akashi, Yosuke Konishi, Atsushi Kajita, Yoshiaki Obana, Tomitaro Hara
  • Patent number: 7759007
    Abstract: A lithium ion secondary battery is provided. The battery includes a positive electrode having at least a cathode active material and a binder, a negative electrode, an electrolyte, and a separator which are arranged between the positive electrode and the negative electrode, and in which an open circuit voltage per unit cell in a full charging state lies within (4.25V?voltage?6.00V). The cathode active material includes either a lithium-cobalt composite oxide expressed by a general formula: LiaCo1-xMexO2-b (Me denotes metal elements of at least one, two or more kinds selected from V, Cu, Zr, Zn, Mg, Al, and Fe; 0.9?a?1.1; 0?x=0.3; and ?0.1?b?0.1) or a lithium-cobalt-nickel-manganese oxide expressed by a general formula: LiaNi1-x-y-zCoxMnyMezO2-b (0.9?a?1.1; 0<x<0.4; 0<y<0.4; 0<z<0.3; and ?0.1?b?0.1). The binder includes a polyacrylonitrile resin.
    Type: Grant
    Filed: December 19, 2006
    Date of Patent: July 20, 2010
    Assignee: Sony Corporation
    Inventors: Takashi Tokunaga, Yoshiaki Obana, Hiroyuki Akashi