Patents by Inventor Takeyuki Yamaki

Takeyuki Yamaki 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: 20150249186
    Abstract: A light-emitting device includes a photoluminescent layer that emits light containing first light, and a light-transmissive layer located on or near the photoluminescent layer. A submicron structure is defined on at least one of the photoluminescent layer and the light-transmissive layer. The submicron structure includes at least projections or recesses. The submicron structure has spatial frequency components distributed at least from more than 0 to 2/Dint(min) as determined by two-dimensional Fourier transform of a pattern of the projections or recesses and satisfies the following relationship: 0.8Dint(min)<?a/nwav-a where Dint(min) is the minimum center-to-center distance between adjacent projections or recesses, ?a is the wavelength of the first light in air, and nwav-a is the refractive index of the photoluminescent layer for the first light.
    Type: Application
    Filed: February 10, 2015
    Publication date: September 3, 2015
    Inventors: YASUHISA INADA, TAKU HIRASAWA, YOSHITAKA NAKAMURA, AKIRA HASHIYA, MITSURU NITTA, TAKEYUKI YAMAKI
  • Publication number: 20150249187
    Abstract: A light-emitting device includes a photoluminescent layer that emits light containing first light, a light-transmissive layer located on or near the photoluminescent layer, a low-refractive-index layer and a high-refractive-index layer. A submicron structure is defined on the photoluminescent layer and/or the light-transmissive layer. The low-refractive-index layer is located on or near the photoluminescent layer so that the photoluminescent layer is located between the low-refractive-index layer and light-transmissive layer. The high-refractive-index layer is located on or near the low-refractive-index layer so that the low-refractive-index layer is located between the high-refractive-index layer and the photoluminescent layer.
    Type: Application
    Filed: February 13, 2015
    Publication date: September 3, 2015
    Inventors: YASUHISA INADA, TAKU HIRASAWA, YOSHITAKA NAKAMURA, AKIRA HASHIYA, MITSURU NITTA, TAKEYUKI YAMAKI
  • Publication number: 20150249183
    Abstract: A light-emitting device includes a photoluminescent layer that emits light containing first light, a light-transmissive layer located on or near the photoluminescent layer, and one or more reflectors. A submicron structure is defined on at least one of the photoluminescent layer and the light-transmissive layer. The one or more reflector are located outside the submicron structure. The submicron structure includes at least projections or recesses and satisfies the following relationship: ?a/nwav-a<Dint<?a where Dint is a center-to-center distance between adjacent projections or recesses, ?a is the wavelength of the first light in air, and nwav-a is the refractive index of the photoluminescent layer for the first light.
    Type: Application
    Filed: February 10, 2015
    Publication date: September 3, 2015
    Inventors: TAKU HIRASAWA, YASUHISA INADA, YOSHITAKA NAKAMURA, AKIRA HASHIYA, MITSURU NITTA, TAKEYUKI YAMAKI
  • Publication number: 20150179971
    Abstract: The organic electroluminescent element includes: a substrate; a first electrode on a surface of the substrate; a second electrode opposite the first electrode; and a functional layer that is between the first electrode and the second electrode and includes at least a light emission layer. In this organic electroluminescent element, the first electrode is a metal electrode and also is a light-reflective electrode, the second electrode is a light-transmissive electrode, and thus light is allowed to emerge outside from the second electrode. The light emission layer is of a polymer material and has an in-plane direction and a thickness direction. A refractive index in the in-plane direction of the light emission layer is greater than a refractive index in the thickness direction of the light emission layer.
    Type: Application
    Filed: November 16, 2012
    Publication date: June 25, 2015
    Inventors: Masahito Yamana, Masahiro Nakamura, Takeyuki Yamaki, Hajime Kuwahara, Akio Kaiho
  • Patent number: 9054334
    Abstract: An organic EL device includes a first substrate including a cathode layer (a first electrode layer), an organic layer formed on the cathode layer, an anode layer (a second electrode layer) formed on the organic layer, and a second substrate joined to the anode layer by an adhesive layer. The anode layer is provided so as to extend to an outer peripheral side of a region where the organic layer is present, the second substrate and the adhesive layer are not present in a portion which faces a region at an outer peripheral side of the extended anode layer, and the cathode layer and the extended anode layer are exposed from the second substrate to constitute a cathode taking-out portion and an anode taking-out portion, respectively.
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: June 9, 2015
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Masahiro Nakamura, Masahito Yamana, Takeyuki Yamaki, Daiki Kato, Takahiro Koyanagi
  • Patent number: 9024306
    Abstract: The organic electroluminescence element according to the present invention includes: a light-emitting layer; a first electrode layer on a first surface in a thickness direction of the light-emitting layer; a second electrode layer on a second surface in the thickness direction of the light-emitting layer; an electrically conductive layer; and an insulating layer. The light-emitting layer emits light when a predetermined voltage is applied between the first and second electrode layers. The second electrode layer includes an electrode part covering the second surface and an opening part formed in the electrode part to expose the second surface therethrough. The electrically conductive layer allows the light to pass therethrough, and formed on an exposed region of the second surface exposed through the opening part so as to be electrically connected to the electrode part and the light-emitting layer. The insulating layer is interposed between the electrode part and the second surface.
    Type: Grant
    Filed: April 23, 2012
    Date of Patent: May 5, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Masahiro Nakamura, Masahito Yamana, Mitsuo Yaguchi, Takeyuki Yamaki
  • Patent number: 9012901
    Abstract: A photoelectric conversion element having high photovoltaic conversion efficiency is provided. The photoelectric conversion element includes a first electrode, a second electrode arranged opposite to the first electrode, and an electron transport layer provided on a face of the first electrode, and the face is opposite to the second electrode. The photoelectric conversion element further includes a photosensitizer supported on the electron transport layer and a hole transport layer interposed between the first electrode and the second electrode. The electron transport layer contains a perylene imide derivative of [Chemical Formula 1].
    Type: Grant
    Filed: March 5, 2012
    Date of Patent: April 21, 2015
    Assignees: Panasonic Corporation, Waseda University
    Inventors: Michio Suzuka, Takashi Sekiguchi, Naoki Hayashi, Takeyuki Yamaki, Hiroyuki Nishide, Kenichi Oyaizu, Fumiaki Kato
  • Patent number: 8999052
    Abstract: Fine mesoporous silica particles are provided by which not only the functions of low reflectance (Low-n), low dielectric constant (Low-k) and low thermal conductivity but also improved strength of a molded article are achieved. The fine mesoporous silica particles are manufactured by a process including a surfactant composite fine silica particle preparation step and a mesoporous particle formation step. In the silica fine particle preparation step, a surfactant, water, an alkali and a hydrophobic part-containing additive including a hydrophobic part for increasing the volume of micelles are mixed with a silica source to thereby prepare surfactant composite fine silica particles. In the mesoporous particle formation step, the mixture is mixed with an acid and an organosilicon compound to thereby remove the surfactant and hydrophobic part-containing additive from the surfactant composite fine silica particles and provide the surface of each silica fine particle with an organic functional group.
    Type: Grant
    Filed: May 18, 2010
    Date of Patent: April 7, 2015
    Assignees: Panasonic Corporation, The University of Tokyo
    Inventors: Hiroki Yabe, Takeyuki Yamaki, Yasuto Hoshikawa, Tatsuya Okubo, Atsushi Shimojima
  • Patent number: 8975623
    Abstract: The organic electroluminescence element in accordance with the present invention includes: a light-emitting layer; a first electrode layer on a first surface in a thickness direction of the light-emitting layer; a second electrode layer on a second surface in the thickness direction of the light-emitting layer; an electrically conductive layer; and an insulating layer. The light-emitting layer is configured to emit light when a predetermined voltage is applied between the first and second electrode layers. The second electrode layer includes an electrode part covering the second surface and an opening part formed in the electrode part to expose the second surface. The electrically conductive layer is designed to allow the light to pass therethrough, and is interposed between the second surface and the second electrode layer to cover the second surface. The insulating layer is interposed between the second surface and the electrically conductive layer to overlap the electrode part.
    Type: Grant
    Filed: April 23, 2012
    Date of Patent: March 10, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Masahiro Nakamura, Masahito Yamana, Mitsuo Yaguchi, Takeyuki Yamaki
  • Patent number: 8952372
    Abstract: To provide a photoelectric element A including a first electrode 2, a second electrode 3 arranged opposite to the first electrode 2, an electron transport layer 1 provided on a face of the first electrode 2, the face being opposite to the second electrode 3, a photosensitizer 5 supported on the electron transport layer 1, and a hole transport layer 4 interposed between the first electrode 2 and the second electrode 3. The electron transport layer 1 includes a filled part 8 containing an organic molecule.
    Type: Grant
    Filed: December 12, 2012
    Date of Patent: February 10, 2015
    Assignees: Panasonic Corporation, Waseda University
    Inventors: Takashi Sekiguchi, Michio Suzuka, Naoki Hayashi, Takeyuki Yamaki, Hiroyuki Nishide, Kenichi Oyaizu, Fumiaki Kato, Naoki Sano
  • Publication number: 20150034926
    Abstract: The organic electroluminescence element includes a functional layer which is interposed between the first electrode and the second electrode and includes a light-emitting layer. The second electrode includes at least an electrically conductive polymer layer which is in contact with the functional layer and has a light transmissive property. The organic electroluminescence element includes: a substrate; a sealing substrate with a light transmissive property; a transparent protection layer covering an element part including a stack of the first electrode, the functional layer and the second electrode; and a resin layer which is interposed between the transparent protection layer and the sealing substrate and has a light transmissive property.
    Type: Application
    Filed: January 23, 2013
    Publication date: February 5, 2015
    Applicant: Panasonic Corporation
    Inventors: Manabu Nakata, Takeyuki Yamaki, Masahiro Nakamura, Masahito Yamana
  • Patent number: 8921833
    Abstract: In an organic electroluminescent element, light extraction efficiency is enhanced. An organic electroluminescent element 1 is configured by laminating a substrate 2, a first electrode 3, an organic layer 4, and a second electrode 5 in this order. The organic layer 4 includes an emitting layer 43, and the emitting layer 43 is formed by mixing porous particles 45 into an emitting material 44.
    Type: Grant
    Filed: June 2, 2010
    Date of Patent: December 30, 2014
    Assignee: Panasonic Corporation
    Inventors: Masahito Yamana, Takeyuki Yamaki, Hiroki Yabe, Masahiro Nakamura
  • Patent number: 8895975
    Abstract: Provided is a photoelectric element that includes an electron transport layer having excellent electron transport properties and a sufficiently large reaction interface and has low resistance loss and excellent conversion efficiency between light and electricity. The photoelectric element includes a first electrode 3, a second electrode 4, an electron transport layer 1 and a hole transport layer 5 interposed between the first electrode 3 and the second electrode 4, an electrolyte solution, and a sensitizing dye. The electron transport layer 1 includes an organic compound having an oxidation-reduction site capable of repeated oxidation-reduction. The electrolyte solution serves to stabilize a reduction state of the oxidation-reduction site. The organic compound and the electrolyte solution form a gel layer 2. The sensitizing dye is provided in contact with the electron transport layer 1.
    Type: Grant
    Filed: March 5, 2012
    Date of Patent: November 25, 2014
    Assignees: Panasonic Corporation, Waseda University
    Inventors: Naoki Hayashi, Michio Suzuka, Takashi Sekiguchi, Takeyuki Yamaki, Hiroyuki Nishide, Kenichi Oyaizu, Fumiaki Kato, Naoki Sano
  • Patent number: 8841550
    Abstract: A photoelectric element provided with an electron transport layer having excellent electron transport property and sufficiently wide reaction interface, and that has excellent conversion efficiency. The photoelectric element has an electron transport layer 3 and a hole transport layer 4 sandwiched between a pair of electrodes 2 and 5. The electron transport layer 3 is formed of an organic compound having a redox moiety capable of being oxidized and reduced repeatedly. The organic compound contains an electrolyte solution which stabilizes the reduced state of the redox moiety, and forms a gel layer 6 containing a sensitizing dye.
    Type: Grant
    Filed: June 16, 2010
    Date of Patent: September 23, 2014
    Assignees: Panasonic Corporation, Waseda University
    Inventors: Takashi Sekiguchi, Mitsuo Yaguchi, Takeyuki Yamaki, Hiroyuki Nishide, Kenichi Oyaizu, Fumiaki Kato, Michio Suzuka, Satoko Kambe
  • Patent number: 8835916
    Abstract: In an organic thin film (a light emitting layer) of an organic EL element, an organic thin film having an emitting material which is made up of an organic polymer main backbone polymerized with a molecular chain, which emits light having a maximum value at a wavelength different from a wavelength at which an emission spectrum emitted by the main backbone itself has a maximum value, and nanosized particles which are mixed into the emitting material is used as the light emitting layer. According to the above configuration, the maximum values of the emission spectra of light emitted by the molecular chain and the main backbone of the emitting material can be increased. Moreover, the light which has the emission spectra having the plural maximum values can be generated without depending on the plural emitting materials, so that the light emitting layer can be manufactured easily.
    Type: Grant
    Filed: February 17, 2012
    Date of Patent: September 16, 2014
    Assignee: Panasonic Corporation
    Inventors: Takeyuki Yamaki, Hiroki Yabe, Masahiro Nakamura, Masahito Yamana
  • Patent number: 8729542
    Abstract: Providing an organic electroluminescence element that can reduce the unevenness of the brightness and can improve the external quantum efficiency. The organic electroluminescence element includes a substrate 10, a first electrode 20, a second electrode 40, a functional layer 30 interleaved between the first electrode 20 the second electrode 40 and including a light emission layer 32, and a conductive layer 50. The resistivities of the first electrode 20 and the second electrode 40 are less than the resistivity of transparent conductive oxide. The second electrode 40 has an opening for light extraction. The functional layer 30 includes, as the outermost layer on the second electrode 40 side, a carrier injection layer 34. The conductive layer 50 is optically transparent and is in contact with the second electrode 40 and the functional layer 30. The carrier injection layer 34 has a recess in the projection domain of the opening.
    Type: Grant
    Filed: May 14, 2012
    Date of Patent: May 20, 2014
    Assignee: Panasonic Corporation
    Inventors: Masahiro Nakamura, Masahito Yamana, Mitsuo Yaguchi, Takeyuki Yamaki
  • Patent number: 8729532
    Abstract: The present invention provides a light-absorbing material capable of providing high photoelectric conversion efficiency when applied to a photoelectric conversion element. The light-absorbing material of the present invention has a structure represented by Formula (1) below: X—Y??(1) (wherein X represents a light-absorbing site, and Y represents a radical site that becomes a radical when in an oxidized state and/or when in a reduced state, and is capable of repeated oxidation-reduction).
    Type: Grant
    Filed: May 21, 2010
    Date of Patent: May 20, 2014
    Assignees: Panasonic Corporation, Waseda University
    Inventors: Takashi Sekiguchi, Hiroyuki Nishide, Michio Suzuka, Takeyuki Yamaki, Kenichi Oyaizu, Fumiaki Kato, Satoko Kambe
  • Publication number: 20140131197
    Abstract: A carbon dioxide enrichment device includes first and second gas diffusion electrodes; an anion exchange membrane; and an electrolytic solution partitioned by the anion exchange membrane. The electrolytic solution contains solvent and solute, and the solute is dissolved to form a dissolved inorganic carbon containing carbonic acid, hydrogen carbonate ions, or carbonic acid ions. The oxygen is consumed by an oxygen reduction reaction on the first gas diffusion electrode, whereby, a dissolved inorganic carbon is formed by a dissolution and ionization reaction of carbon dioxide in the solvent. The dissolved inorganic carbon from the solute or the dissolved inorganic carbon is transported to the second gas diffusion electrode through the anion exchange membrane, and oxygen is formed from the solvent near the second gas diffusion electrode by an oxidation reaction of the solvent on the second gas diffusion electrode, and carbon dioxide is formed from the dissolved inorganic carbon.
    Type: Application
    Filed: May 29, 2012
    Publication date: May 15, 2014
    Inventors: Michio Suzuka, Ryo Kamai, Shuji Nakanishi, Takeyuki Yamaki, Kazuhito Hashimoto, Adam Heller, Yong Zhao
  • Publication number: 20140124757
    Abstract: To provide a photoelectric element A including a first electrode 2, a second electrode 3 arranged opposite to the first electrode 2, an electron transport layer 1 provided on a face of the first electrode 2, the face being opposite to the second electrode 3, a photosensitizer 5 supported on the electron transport layer 1, and a hole transport layer 4 interposed between the first electrode 2 and the second electrode 3. The electron transport layer 1 includes a filled part 8 containing an organic molecule.
    Type: Application
    Filed: December 12, 2012
    Publication date: May 8, 2014
    Applicants: WASEDA UNIVERSITY, Panasonic Corporation
    Inventors: Takashi Sekiguchi, Michio Suzuka, Naoki Hayashi, Takeyuki Yamaki, Hiroyuki Nishide, Kenichi Oyaizu, Fumiaki Kato, Naoki Sano
  • Patent number: 8704443
    Abstract: An organic EL device includes a first substrate including a cathode layer and a smoothing layer, an organic layer formed on the cathode layer, an anode layer formed on the organic layer, and a second substrate joined to the anode layer. In a region of a peripheral portion of the first substrate, the organic layer is not formed. The anode layer is provided on the cathode layer through an insulating layer in a portion of the region so as to extend to an outer peripheral side, the extended anode layer is folded back to a side opposite to the second substrate to constitute an anode taking-out portion, and a portion of the cathode layer of the first substrate is folded back to constitute a cathode taking-out portion.
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: April 22, 2014
    Assignee: Panasonic Corporation
    Inventors: Masahiro Nakamura, Masahito Yamana, Takeyuki Yamaki, Daiki Kato, Takahiro Koyanagi