Patents by Inventor Yutaka Matsuo

Yutaka Matsuo 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: 10249823
    Abstract: A fullerene derivative may be included in photoelectric devices and image sensor. Optical absorption characteristics of a thin film including the fullerene derivative may be shifted toward a short wavelength compared with those of the thin film including the unsubstituted C60 fullerene, for example, a thin film including the fullerene derivative may be associated with a peak absorption wavelength (?max) that is be shorter than that of a thin film including the unsubstituted C60 fullerene.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: April 2, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hiromasa Shibuya, Tadao Yagi, Rie Sakurai, Yeong Suk Choi, Yutaka Matsuo
  • Publication number: 20190019955
    Abstract: A fullerene derivative may be included in photoelectric devices and image sensor. Optical absorption characteristics of a thin film including the fullerene derivative may be shifted toward a short wavelength compared with those of the thin film including the unsubstituted C60 fullerene, for example, a thin film including the fullerene derivative may be associated with a peak absorption wavelength (?max) that is be shorter than that of a thin film including the unsubstituted C60 fullerene.
    Type: Application
    Filed: November 27, 2017
    Publication date: January 17, 2019
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Hiromasa SHIBUYA, Tadao YAGI, Rie SAKURAI, Yeong Suk CHOI, Yutaka MATSUO
  • Publication number: 20170316887
    Abstract: The present invention provides a light-transmitting electrode which has high electrical conductivity and high electron blocking performance. The present invention also provides a solar cell which is capable of achieving high energy conversion efficiency at low cost. The present invention provides a method for producing a light-transmitting electrode that has a light-transmitting substrate, a carbon nanotube film which is formed directly or indirectly on the light-transmitting substrate, and a metal oxide film which is formed directly on the carbon nanotube film. This production method includes vapor depositing the metal oxide film, which contains oxygen and a metal element belonging to the group 4, 5 or 6 of the periodic table, on one surface or both surfaces of the carbon nanotube film. The present invention provides a light-transmitting electrode which includes a light-transmitting substrate and a conductive carbon nanotube film that is formed directly or indirectly on the light-transmitting substrate.
    Type: Application
    Filed: September 2, 2015
    Publication date: November 2, 2017
    Inventors: Shigeo Maruyama, Yutaka Matsuo, Il Jeon, Kehang Cui, Esko I Kauppinen, Albert G Nasibulin
  • Patent number: 9039935
    Abstract: The present invention provides a photoelectric conversion material comprising a fullerene derivative represented by the formula C60(R1)5(R2), wherein each R1 independently represents an organic group having a substituent; and R2 represents a hydrogen atom or a substituted or unsubstituted C1-C30 hydrocarbon group. Further, the present invention also provides a photoelectric conversion device having a self-assembled monomolecular film of the photoelectric conversion material, and a solar cell having the photoelectric conversion device.
    Type: Grant
    Filed: May 2, 2007
    Date of Patent: May 26, 2015
    Assignee: Japan Science and Technology Agency
    Inventors: Eiichi Nakamura, Yutaka Matsuo, Katsuhiko Kanaizuka
  • Patent number: 8952247
    Abstract: The present invention provides a photoelectric conversion device having at least a fullerene derivative as an electron acceptor and a compound as an electron donor between a pair of electrodes, wherein the fullerene derivative has 2 to 4 organic groups which each independently have 1 to 50 carbon atoms, and wherein when the fullerene derivative has two organic groups, these organic groups do not bind to each other to form a ring.
    Type: Grant
    Filed: July 3, 2008
    Date of Patent: February 10, 2015
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Yoshiharu Sato, Eiichi Nakamura, Takaaki Niinomi, Yutaka Matsuo, Masahiko Hashiguchi
  • Patent number: 8552289
    Abstract: The present invention provides a photoelectric conversion device having at least a fullerene derivative as an electron acceptor and a compound as an electron donor between a pair of electrodes, wherein the fullerene derivative has 2 to 4 organic groups which each independently have 1 to 50 carbon atoms, and wherein when the fullerene derivative has two organic groups, these organic groups do not bind to each other to form a ring.
    Type: Grant
    Filed: July 3, 2008
    Date of Patent: October 8, 2013
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Yoshiharu Sato, Eiichi Nakamura, Takaaki Niinomi, Yutaka Matsuo, Masahiko Hashiguchi
  • Patent number: 8304643
    Abstract: The present invention provides a photoelectric conversion material comprising a fullerene derivative represented by the formula C60(R1)5(MLn), wherein: each R1 independently represents an organic group having a substituent; M represents a metal atom; L is a ligand of M; and n is the number of Ls. Further, the present invention also provides a photoelectric conversion device having a self-assembled monomolecular film of the photoelectric conversion material, and a solar cell having the photoelectric conversion device.
    Type: Grant
    Filed: May 2, 2007
    Date of Patent: November 6, 2012
    Assignee: Japan Science and Technology Agency
    Inventors: Eiichi Nakamura, Yutaka Matsuo, Katsuhiko Kanaizuka
  • Patent number: 8153835
    Abstract: The present invention provides a fullerene derivative represented by the following formula (1): wherein in formula (1), R1 is a substituted or unsubstituted organic group or a hydrogen atom, and wherein in formulae (2) and (3): W is a single bond, C1-C11, alkylene, C2-C12 alkenylene, or C2-C12 alkynylene, wherein any —CH2— in the alkylene, alkenylene or alkynylene can be substituted with —O—, —S—, —COO—, or —OCO—; Z is an element belonging to group IVB; and R21 to R23 are each independently a substituted or unsubstituted C1-C20 alkyl group, a substituted or unsubstituted C2-C15 alkenyl group, or a substituted or unsubstituted C2-C15 alkynyl group.
    Type: Grant
    Filed: November 2, 2006
    Date of Patent: April 10, 2012
    Assignee: Japan Science and Technology Agency
    Inventors: Eiichi Nakamura, Yutaka Matsuo, Yu-Wu Zhong, Ayako Muramatsu
  • Patent number: 8134019
    Abstract: The present invention provides a method for producing a fullerene derivative, comprising the organic group addition step B in which an organic group is further added by reacting at least a basic compound and a halogen compound with a fullerene derivative, which is obtained by addition of a hydrogen atom and an organic group in the organic group addition step A, in which an organic group is added by reacting at least a Grignard reagent and a polar substance with a fullerene or fullerene derivative.
    Type: Grant
    Filed: November 6, 2007
    Date of Patent: March 13, 2012
    Assignee: Japan Science and Technology Agency
    Inventors: Eiichi Nakamura, Yutaka Matsuo, Akihiko Iwashita
  • Publication number: 20110005597
    Abstract: The present invention provides a photoelectric conversion device having at least a fullerene derivative as an electron acceptor and a compound as an electron donor between a pair of electrodes, wherein the fullerene derivative has 2 to 4 organic groups which each independently have 1 to 50 carbon atoms, and wherein when the fullerene derivative has two organic groups, these organic groups do not bind to each other to form a ring.
    Type: Application
    Filed: July 3, 2008
    Publication date: January 13, 2011
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Yoshiharu Sato, Eiichi Nakamura, Takaaki Niinomi, Yutaka Matsuo, Masahiko Hashiguchi
  • Patent number: 7790913
    Abstract: The present invention provides a method for producing a fullerene derivative comprising reacting: a fullerene; an organometallic reagent (A) comprising B, Al, Zn, Sn, Pb, Te, Ti, Mn, Zr or Sm; and a copper compound (B).
    Type: Grant
    Filed: March 15, 2007
    Date of Patent: September 7, 2010
    Assignee: Japan Science and Technology Agency
    Inventors: Eiichi Nakamura, Yutaka Matsuo, Takahiro Nakae
  • Publication number: 20100048934
    Abstract: The present invention provides a method for producing a fullerene derivative, comprising the organic group addition step B in which an organic group is further added by reacting at least a basic compound and a halogen compound with a fullerene derivative, which is obtained by addition of a hydrogen atom and an organic group in the organic group addition step A, in which an organic group is added by reacting at least a Grignard reagent and a polar substance with a fullerene or fullerene derivative.
    Type: Application
    Filed: November 6, 2007
    Publication date: February 25, 2010
    Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Eiichi Nakamura, Yutaka Matsuo, Akihiko Iwashita
  • Publication number: 20090247777
    Abstract: The present invention provides a fullerene derivative represented by the following formula (1): wherein in formula (1), R1 is a substituted or unsubstituted organic group or a hydrogen atom, and wherein in formulae (2) and (3): W is a single bond, C1-C11, alkylene, C2-C12 alkenylene, or C2-C12 alkynylene, wherein any —CH2— in the alkylene, alkenylene or alkynylene can be substituted with —O—, —S—, —COO—, or —OCO—; Z is an element belonging to group IVB; and R21 to R23 are each independently a substituted or unsubstituted C1-C20 alkyl group, a substituted or unsubstituted C2-C15 alkenyl group, or a substituted or unsubstituted C2-C15 alkynyl group.
    Type: Application
    Filed: November 2, 2006
    Publication date: October 1, 2009
    Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Eiichi Nakamura, Yutaka Matsuo, Yu-Wu Zhong, Ayako Muramatsu
  • Publication number: 20090194158
    Abstract: The present invention provides a photoelectric conversion material comprising a fullerene derivative represented by the formula C60(R1)5(R2), wherein each R1 independently represents an organic group having a substituent; and R2 represents a hydrogen atom or a substituted or unsubstitutedC1-C30 hydrocarbon group. Further, the present invention also provides a photoelectric conversion device having a self-assembled monomolecular film of the photoelectric conversion material, and a solar cell having the photoelectric conversion device.
    Type: Application
    Filed: May 2, 2007
    Publication date: August 6, 2009
    Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Eiichi Nakamura, Yutaka Matsuo, Katsuhiko Kanaizuka
  • Patent number: 7547429
    Abstract: The present invention relates to a fullerene derivative having a partial structure represented by the general formula (I): wherein C1 to C8 are carbon atoms constituting a fullerene skeleton in which C6 to C8 are independently bonded to an organic group having 1 to 50 carbon atoms, and C1 is bonded to a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms.
    Type: Grant
    Filed: May 27, 2004
    Date of Patent: June 16, 2009
    Assignees: Mitsubishi Chemical Corporation
    Inventors: Eiichi Nakamura, Yutaka Matsuo
  • Publication number: 20090118527
    Abstract: The present invention provides a method for producing a fullerene derivative comprising reacting: a serene; an organometallic reagent (A) comprising B, Al, Zn, Sn, Pb, Te, Ti, Mn, Zr or Sm; and a copper compound (B).
    Type: Application
    Filed: March 15, 2007
    Publication date: May 7, 2009
    Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Eiichi Nakamura, Yutaka Matsuo, Takahiro Nakae
  • Publication number: 20090101200
    Abstract: The present invention provides a photoelectric conversion material comprising a fullerene derivative represented by the formula C60(R1)5(MLn), wherein: each R1 independently represents an organic group having a substituent; M represents a metal atom; L is a ligand of M; and n is the number of Ls. Further, the present invention also provides a photoelectric conversion device having a self-assembled monomolecular film of the photoelectric conversion material, and a solar cell having the photoelectric conversion device.
    Type: Application
    Filed: May 2, 2007
    Publication date: April 23, 2009
    Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Eiichi Nakamura, Yutaka Matsuo, Katsuhiko Kanaizuka
  • Patent number: 7322081
    Abstract: According to the method of manufacturing a surface acoustic wave device of the invention, since a conductor layer is formed on electrode sections in a state where the entire regions of inter digital transducer and reflectors are covered with an insulating film, the inter digital transducer and the reflectors are protected by the insulating film during formation of the conductor layer. As a result, it is possible to obtain a highly efficient surface acoustic wave device with no sticking of foreign matters to the inter digital transducer and the reflectors.
    Type: Grant
    Filed: March 24, 2006
    Date of Patent: January 29, 2008
    Assignee: Alps Electric Co., Ltd.
    Inventors: Takuo Kudo, Takeshi Ikeda, Takashi Sato, Kyosuke Ozaki, Yutaka Matsuo, Toshihiro Meguro
  • Patent number: 7202374
    Abstract: A metal complex contains at least one ligand, each having the form of a molecule of a fullerene derivative or an anion of the fullerene derivative, where the fullerene derivative, with a solubility in n-hexane of not lower that 0.1 mg/ml at 250° C., includes a fullerene skeleton and three or more organic groups attached to the fullerene skeleton, where each of the organic groups is represented by the general formula (III): —CH2—X(R2)(R3)(R4) ??(III) where X represents an element belonging to the group 14 in the periodic table; and R2, R3 and R4 may be the same or different and each represents a hydrogen atom, hydrocarbon group, alkoxy group or amino group.
    Type: Grant
    Filed: June 10, 2005
    Date of Patent: April 10, 2007
    Assignees: Mitsubishi Chemical Corporation
    Inventors: Eiichi Nakamura, Yutaka Matsuo
  • Publication number: 20060220764
    Abstract: According to the method of manufacturing a surface acoustic wave device of the invention, since a conductor layer is formed on electrode sections in a state where the entire regions of inter digital transducer and reflectors are covered with an insulating film, the inter digital transducer and the reflectors are protected by the insulating film during formation of the conductor layer. As a result, it is possible to obtain a highly efficient surface acoustic wave device with no sticking of foreign matters to the inter digital transducer and the reflectors.
    Type: Application
    Filed: March 24, 2006
    Publication date: October 5, 2006
    Inventors: Takuo Kudo, Takeshi Ikeda, Takashi Sato, Kyosuke Ozaki, Yutaka Matsuo, Toshihiro Meguro