Patents by Inventor Hidekazu Hayama
Hidekazu Hayama 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).
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Patent number: 10101529Abstract: A mirrorless optical waveguide can include a cladding and a core. The core can include an elongate section parallel to a surface plane. The core can further include two curved end sections that curve toward a surface plane. The surface plane can be parallel to a substrate. The cladding can have nanoparticles made of acrylic and/or urethane. The core can have similar nanoparticles of acrylic and/or urethane as well as nanoparticles with a high refractive index such as zirconia. The mirrorless optical waveguide can be formed by ink-jet printing.Type: GrantFiled: December 11, 2013Date of Patent: October 16, 2018Assignee: Empire Technology Development LLCInventor: Hidekazu Hayama
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Patent number: 10001585Abstract: An illuminating device is configured to include a light guide structure having a first light source configured to emit light of a first wavelength to excite at least one red fluorescent transparent substance; a second light source configured to emit light of a second wavelength to excite at least one green fluorescent transparent substance; and a third light source configured to emit light of a third wavelength to excite at least one blue fluorescent transparent substance.Type: GrantFiled: December 3, 2012Date of Patent: June 19, 2018Assignee: EMPIRE TECHNOLOGY DEVELOPMENT LLCInventor: Hidekazu Hayama
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Patent number: 9759855Abstract: Hybrid nanoparticles and transparent light guides using the hybrid nanoparticles are disclosed. In some examples, a hybrid nanoparticle may include an organic blue-light emitting material, and an inorganic material bonded to the organic blue-light emitting material.Type: GrantFiled: February 25, 2013Date of Patent: September 12, 2017Assignee: EMPIRE TECHNOLOGY DEVELOPMENT LLCInventor: Hidekazu Hayama
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Publication number: 20170075169Abstract: A backlight unit for a LCD can include a TFT array substrate, a UV light source disposed at an edge or bottom of the TFT array substrate, and a layer of transparent fluorescent films formed on the TFT array substrate. The layer of transparent fluorescent films can include a plurality of red transparent fluorescent films, a plurality of green transparent fluorescent films, and a plurality of blue transparent fluorescent films. The layer of transparent fluorescent films can function as a color filter. In some embodiments, a light guide plate and a conventional color filter are omitted from the LCD.Type: ApplicationFiled: March 4, 2014Publication date: March 16, 2017Applicant: EMPIRE TECHNOLOGY DEVELOPMENT LLCInventor: Hidekazu Hayama
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Publication number: 20160356954Abstract: An optical waveguide may include a graded refractive index structure including a core structure, and a cladding at least partially surrounding the core structure and having an outer surface and an inner surface contacting the core structure. The core structure of the optical waveguide may have a higher refractive index than the cladding. The cladding may have a decreasing refractive index from the inner surface toward the outer surface. Optoelectronic devices that includes the optical waveguide, and methods of making the optical waveguide are also provided.Type: ApplicationFiled: December 3, 2013Publication date: December 8, 2016Applicant: EMPIRE TECHNOLOGY DEVELOPMENT LLCInventor: Hidekazu HAYAMA
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Publication number: 20160299290Abstract: A mirrorless optical waveguide can include a cladding and a core. The core can include an elongate section parallel to a surface plane. The core can further include two curved end sections that curve toward a surface plane. The surface plane can be parallel to a substrate. The cladding can have nanoparticles made of acrylic and/or urethane. The core can have similar nanoparticles of acrylic and/or urethane as well as nanoparticles with a high refractive index such as zirconia. The mirrorless optical waveguide can be formed by ink-jet printing.Type: ApplicationFiled: December 11, 2013Publication date: October 13, 2016Applicant: EMPIRE TECHNOLOGY DEVELOPMENT LLCInventor: Hidekazu Hayama
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Patent number: 9409790Abstract: With a view to realizing a titanium oxide structure that has a large surface area and enables efficient transfer of ions and electrons by virtue of titanium oxide particles connected to one another, an object of the invention is to develop a material useful as an active material for dye-sensitized solar cells, and a process for producing the material; a porous titanium oxide composition and a process for producing the composition; and a photoelectric conversion element comprising the titanium oxide structure or porous titanium oxide composition.Type: GrantFiled: June 19, 2009Date of Patent: August 9, 2016Assignee: OSAKA GAS CO., LTD.Inventors: Hitoshi Nishino, Ryoichi Nishida, Hiroaki Matsuyoshi, Hiroki Sakamoto, Haruo Tomita, Hidekazu Hayama, Minoru Tabuchi, Nobuko Ichimura, Tomoe Deguchi
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Publication number: 20160004003Abstract: Hybrid nanoparticles and transparent light guides using the hybrid nanoparticles are disclosed. In some examples, a hybrid nanoparticle may include an organic blue-light emitting material, and an inorganic material bonded to the organic blue-light emitting material.Type: ApplicationFiled: February 25, 2013Publication date: January 7, 2016Inventor: Hidekazu Hayama
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Patent number: 9133389Abstract: Light guide structures having a transparent member containing at least one red fluorescent transparent substance, at least one green fluorescent transparent substance, and at least one blue fluorescent transparent substance are disclosed.Type: GrantFiled: October 31, 2012Date of Patent: September 15, 2015Assignee: EMPIRE TECHNOLOGY DEVELOPMENT LLCInventor: Hidekazu Hayama
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Publication number: 20140153215Abstract: An illuminating device is configured to include a light guide structure having a first light source configured to emit light of a first wavelength to excite at least one red fluorescent transparent substance; a second light source configured to emit light of a second wavelength to excite at least one green fluorescent transparent substance; and a third light source configured to emit light of a third wavelength to excite at least one blue fluorescent transparent substance.Type: ApplicationFiled: December 3, 2012Publication date: June 5, 2014Applicant: Empire Technology Development LLCInventor: Hidekazu Hayama
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Publication number: 20140119052Abstract: Light guide structures having a transparent member containing at least one red fluorescent transparent substance, at least one green fluorescent transparent substance, and at least one blue fluorescent transparent substance are disclosed.Type: ApplicationFiled: October 31, 2012Publication date: May 1, 2014Applicant: Empire Technology Development LLCInventor: Hidekazu Hayama
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Publication number: 20110083737Abstract: With a view to realizing a titanium oxide composite that has a large surface area and that enables efficient transfer of electrons by covering a surface of rod-like or fibrous carbon with a covering layer comprising titanium oxide particles connected to one another, an object of the invention is to develop a material useful as an active material for dye-sensitized solar cells, and a process for producing the material; a porous titanium oxide-covered carbon material composition, and a process for producing the composition; and a photoelectric conversion element comprising the titanium oxide-covered carbon material or porous titanium oxide-covered carbon material composition.Type: ApplicationFiled: June 19, 2009Publication date: April 14, 2011Applicant: OSAKA GAS CO., LTD.Inventors: Hitoshi Nishino, Ryoichi Nishida, Hiroaki Matsuyoshi, Hiroki Sakamoto, Haruo Tomita, Hidekazu Hayama, Minoru Tabuchi, Nobuko Ichimura, Tomoe Deguchi
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Publication number: 20110079276Abstract: With a view to realizing a titanium oxide structure that has a large surface area and enables efficient transfer of ions and electrons by virtue of titanium oxide particles connected to one another, an object of the invention is to develop a material useful as an active material for dye-sensitized solar cells, and a process for producing the material; a porous titanium oxide composition and a process for producing the composition; and a photoelectric conversion element comprising the titanium oxide structure or porous titanium oxide composition.Type: ApplicationFiled: June 19, 2009Publication date: April 7, 2011Applicant: OSAKA GAS CO., LTD.Inventors: Hitoshi Nishino, Ryoichi Nishida, Hiroaki Matsuyoshi, Hiroki Sakamoto, Haruo Tomita, Hidekazu Hayama, Minoru Tabuchi, Nobuko Ichimura, Tomoe Deguchi
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Patent number: 7652098Abstract: The present invention relates to a resin composition for GHz-band electronic components, the composition comprising nanoscale carbon tubes and at least one member selected from the group consisting of thermoplastic resins, curable resins, and composite resins of thermoplastic resins and curable resins; wherein the nanoscale carbon tubes are present in an amount of 0.0001 to 0.4 wt. % based on the resin; and an electronic component obtainable from the resin composition, or the like.Type: GrantFiled: February 2, 2005Date of Patent: January 26, 2010Assignee: Osaka Gas Co., LtdInventors: Kouichi Yamaguchi, Hidekazu Hayama, Ren-De Sun, Masahiro Yamada, Hitoshi Nishino, Yasunori Yokomichi
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Patent number: 7391046Abstract: A light source module for generating light, including a semiconductor light-emitting element, nano-particles having a diameter smaller than half the wavelength of light generated by the light source module, a fluorescent substance for generating visible light in accordance with light generated by the semiconductor light-emitting element, and a binder formed stratiformly for covering a light-emitting surface of the semiconductor light-emitting element to hold the nano-particles and the fluorescent substance, wherein the refractive index of the nano-particles is higher than the refractive index of the binder.Type: GrantFiled: March 25, 2005Date of Patent: June 24, 2008Assignee: Koito Manufacturing Co., Ltd.Inventors: Yasuaki Tsutsumi, Hisayoshi Daicho, Hitoshi Takeda, Hidekazu Hayama, Hirokazu Yamaguchi
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Patent number: 7385349Abstract: A light emitting module for generating a light includes a semiconductor light emitting unit for generating a light, a plurality of nanophosphor particles having diameters which are smaller than a half-wavelength of the light generated from the light emitting module and serving to emit a fluorescent light corresponding to the light generated from the semiconductor light emitting unit, and a binder for holding the nanophosphor particles like a layer covering a light emitting surface of the semiconductor light emitting unit. Furthermore, a lighting unit for a vehicle includes the light emitting module.Type: GrantFiled: January 6, 2005Date of Patent: June 10, 2008Assignee: Koito Manufacturing Co., Ltd.Inventors: Hisayoshi Daicho, Hitoshi Takeda, Yasuaki Tsutsumi, Hidekazu Hayama, Kenji Yamada
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Patent number: 7270718Abstract: The invention provides a method for manufacturing a soft magnetic powder material covered by oxide layers at surfaces of the powder, by using a soft magnetic alloy powder containing a soft magnetic powder material and a second element such as Si having an oxidizing reactivity higher than iron, and heating the soft magnetic alloy powder in an atmosphere of a weak oxidizing gas by mixing a weak oxidizing gas in an inert gas, and oxidizing selectively the second element at surface layers of the powder while restraining an oxidation of iron to form thin oxide layers with high electrical resistance.Type: GrantFiled: November 19, 2004Date of Patent: September 18, 2007Assignee: DENSO CorporationInventors: Yoshiaki Nishijima, Yurio Nomura, Kouichi Yamaguchi, Yuuichi Ishikawa, Hidekazu Hayama
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Publication number: 20070129481Abstract: The present invention relates to a resin composition for GHz-band electronic components, the composition comprising nanoscale carbon tubes and at least one member selected from the group consisting of thermoplastic resins, curable resins, and composite resins of thermoplastic resins and curable resins; wherein the nanoscale carbon tubes are present in an amount of 0.0001 to 0.4 wt. % based on the resin; and an electronic component obtainable from the resin composition, or the like.Type: ApplicationFiled: February 2, 2005Publication date: June 7, 2007Inventors: Kouichi Yamaguchi, Hidekazu Hayama, Ren-De Sun, Masahiro Yamada, Hitoshi Nishino, Yasunori Yokomichi
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Publication number: 20060291226Abstract: A light emitting module for generating a light includes a semiconductor light emitting unit for generating a light, a plurality of nanophosphor particles having diameters which are smaller than a half-wavelength of the light generated from the light emitting module and serving to emit a fluorescent light corresponding to the light generated from the semiconductor light emitting unit, and a binder for holding the nanophosphor particles like a layer covering a light emitting surface of the semiconductor light emitting unit. Furthermore, a lighting unit for a vehicle includes the light emitting module.Type: ApplicationFiled: January 6, 2005Publication date: December 28, 2006Inventors: Hisayoshi Daicho, Hitoshi Takeda, Yasuaki Tsutsumi, Hidekazu Hayama, Kenji Yamada
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Publication number: 20060027950Abstract: The invention provides a method for manufacturing a soft magnetic material, wherein an Fe—Si alloy powder is heated in a weakly oxidizing atmosphere to form a SiO2 oxide film on the surface, and the powder is then press-molded and fired in a weakly oxidizing atmosphere to obtain a sintered product. By performing the surface oxidizing step in a weakly oxidizing atmosphere such as water vapor, Si is selectively oxidized to form a thin oxide film with high electrical resistance. Furthermore, by firing the molded product in a weakly oxidizing atmosphere, the sintering can be performed while the oxide film, in which cracks and the like are generated at the press-molding, is repaired.Type: ApplicationFiled: August 3, 2005Publication date: February 9, 2006Applicant: Denso CorporationInventors: Masahiro Ishitani, Yoshiaki Nishijima, Yurio Nomura, Kouichi Yamaguchi, Yuichi Ishikawa, Hidekazu Hayama