Patents by Inventor Tsukasa Maruyama
Tsukasa Maruyama 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: 8469760Abstract: A light emitting device 10 includes: a lead frame 12a serving as a mounting portion having a cup 13; a light emitting element 14, mounted on the bottom face 13a of the cup, for emitting light having a predetermined peak wavelength; a layer of large phosphor particles 16, adsorbed and formed on the light emitting element, for absorbing light emitted from the light emitting element and for emitting light having a longer peak wavelength than that of the light emitted from the light emitting element; small phosphor particles 18, which have a smaller particle diameter than that of the large phosphor particles, for absorbing at least one of light emitted from the large phosphor particles and light emitted from the light emitting element and for emitting light having a longer peak wavelength than that of the at least one of the light emitted from the large phosphor particles and the light emitted from the light emitting element; and a sealing member 20, in which the small phosphor particles are dispersed, for sealinType: GrantFiled: March 27, 2007Date of Patent: June 25, 2013Assignee: Dowa Electronics Materials Co., Ltd.Inventors: Tsukasa Maruyama, Masahiro Gotoh, Tetsuya Ikuta
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Publication number: 20130146143Abstract: An object of the present invention is to provide an electrolyte for a photoelectric conversion element that can achieve superior moisture resistance. The electrolyte for a photoelectric conversion element of the present invention is an electrolyte for a photoelectric conversion element which contains an organic salt compound (A) and a lamellar clay mineral (B), wherein the above-mentioned organic salt compound (A) contains more than 50 mass %, in terms of cationic weight, of an organic salt compound (a1) having a specific cation.Type: ApplicationFiled: August 25, 2011Publication date: June 13, 2013Applicant: THE YOKOHAMA RUBBER CO., LTD.Inventor: Tsukasa Maruyama
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Publication number: 20130008502Abstract: An object of the present invention is to provide an electrolyte for a photoelectric conversion element that can achieve superior moisture resistance, and a photoelectric conversion element and a dye-sensitized solar cell using the electrolyte. An electrolyte for a photoelectric conversion element of the present invention includes an ionic liquid (A) and a lamellar clay mineral (B). Additionally, the lamellar clay mineral (B) contains an alkylsilyl group.Type: ApplicationFiled: March 4, 2011Publication date: January 10, 2013Applicant: THE YOKOHAMA RUBBER CO., LTD.Inventor: Tsukasa Maruyama
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Patent number: 8338692Abstract: An object of the present invention is to provide an electrolyte for photoelectric conversion elements, and a photoelectric conversion element and a dye-sensitized solar cell using the electrolyte, wherein high energy conversion efficiency can be achieved while substantially not including iodine. The electrolyte for a photoelectric conversion element of the present invention includes an ionic liquid (A) and a carbon material (B) having a specific surface area of from 1,000 to 3,500 m2/g, wherein a content of the carbon material (B) is from 10 to 50 parts by mass per 100 parts by mass of the ionic liquid (A).Type: GrantFiled: November 26, 2009Date of Patent: December 25, 2012Assignee: The Yokohama Rubber Co., Ltd.Inventors: Yoshimasa Imazaki, Tsukasa Maruyama
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Patent number: 8299270Abstract: A gel-like or solid electrolyte containing (i) an electrolyte solution containing an electrolyte dissolved in an organic solvent, (ii) a lamellar clay mineral and/or an organically modified lamellar clay mineral and (iii) a polyvalent onium salt compound and a photoelectric transducer element and a dye-sensitized solar cell using the same.Type: GrantFiled: August 14, 2007Date of Patent: October 30, 2012Assignee: The Yokohama Rubber Co., Ltd.Inventor: Tsukasa Maruyama
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Patent number: 8253326Abstract: A light-emitting device of the present invention includes: a light-emitting element; and a phosphor layer containing phosphors that absorb light from the light-emitting element and wavelength-convert the absorbed light to emit light. The phosphor layer has a structure in which the phosphors are disposed on an applied adhesive with a thickness equal to or less than an average particle size of the phosphors. A thickness of the phosphor layer is equal to or less than five times the average particle size of the phosphors, and an occupancy ratio of the phosphors in the phosphor layer is 50% or more. Further, the phosphors disposed on the adhesive has an adjusted particle size.Type: GrantFiled: July 20, 2010Date of Patent: August 28, 2012Assignee: Dowa Electronics Materials Co., Ltd.Inventors: Tsukasa Maruyama, Tetsuya Ikuta
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Patent number: 8222515Abstract: An object of the present invention is to provide an electrolyte for photoelectric conversion elements, and a photoelectric conversion element and a dye-sensitized solar cell using the electrolyte, wherein high energy conversion efficiency can be achieved while substantially not including iodine. The electrolyte for a photoelectric conversion element of the present invention includes an ionic liquid (A) and a carbon material (B). The carbon material (B) is a carbon material (B1) displaying a pH, measured by a pH measuring method specified in Japanese Industry Standard (JIS) Z8802, of from 2 to 6 and/or a boron-modified acetylene black (B2). A content of the carbon material (B) is from 10 to 50 parts by mass per 100 parts by mass of the ionic liquid (A).Type: GrantFiled: December 25, 2009Date of Patent: July 17, 2012Assignee: The Yokohama Rubber Co., Ltd.Inventors: Yoshimasa Imazaki, Tsukasa Maruyama
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Patent number: 8164254Abstract: A light-emitting device of the present invention includes: a light-emitting element; and a phosphor layer containing phosphors that absorb light from the light-emitting element and wavelength-convert the absorbed light to emit light. The phosphor layer has a structure in which the phosphors are disposed on an applied adhesive with a thickness equal to or less than an average particle size of the phosphors. A thickness of the phosphor layer is equal to or less than five times the average particle size of the phosphors, and an occupancy ratio of the phosphors in the phosphor layer is 50% or more. Further, the phosphors disposed on the adhesive has an adjusted particle size.Type: GrantFiled: November 28, 2007Date of Patent: April 24, 2012Assignee: Dowa Electronics Materials Co., Ltd.Inventors: Tsukasa Maruyama, Tetsuya Ikuta
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Publication number: 20120037230Abstract: An object of the present invention is to provide an electrolyte for a photoelectric conversion element that can achieve superior heat resistance, and a photoelectric conversion element and a dye-sensitized solar cell using the electrolyte. The electrolyte for a photoelectric conversion element of the present invention includes an organic salt compound (A) containing a tertiary or quaternary cation. Additionally, at least an organic salt compound (a1) containing a tertiary or quaternary cation and a thiocyanate anion is used as the organic salt compound (A).Type: ApplicationFiled: April 21, 2010Publication date: February 16, 2012Applicant: THE YOKOHAMA RUBBER CO., LTD.Inventor: Tsukasa Maruyama
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Publication number: 20110253202Abstract: An object of the present invention is to provide an electrolyte for photoelectric conversion elements, and a photoelectric conversion element and a dye-sensitized solar cell using the electrolyte, wherein high energy conversion efficiency can be achieved while substantially not including iodine. The electrolyte for a photoelectric conversion element of the present invention includes an ionic liquid (A) and a carbon material (B). The carbon material (B) is a carbon material (B1) displaying a pH, measured by a pH measuring method specified in Japanese Industry Standard (JIS) Z8802, of from 2 to 6 and/or a boron-modified acetylene black (B2). A content of the carbon material (B) is from 10 to 50 parts by mass per 100 parts by mass of the ionic liquid (A).Type: ApplicationFiled: December 25, 2009Publication date: October 20, 2011Applicant: THE YOKOHAMA RUBBER CO., LTD.Inventors: Yoshimasa Imazaki, Tsukasa Maruyama
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Publication number: 20110226315Abstract: An object of the present invention is to provide an electrolyte for photoelectric conversion elements, and a photoelectric conversion element and a dye-sensitized solar cell using the electrolyte, wherein high energy conversion efficiency can be achieved while substantially not including iodine. The electrolyte for a photoelectric conversion element of the present invention includes an ionic liquid (A) and a carbon material (B) having a specific surface area of from 1,000 to 3,500 m2/g, wherein a content of the carbon material (B) is from 10 to 50 parts by mass per 100 parts by mass of the ionic liquid (A).Type: ApplicationFiled: November 26, 2009Publication date: September 22, 2011Applicant: THE YOKOHAMA RUBBER CO., LTD.Inventors: Yoshimasa Imazaki, Tsukasa Maruyama
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Patent number: 7956536Abstract: A light emitting device 10 includes: a lead frame 12a serving as a mounting portion having a cup 13; a light emitting element 14, mounted on the bottom face 13a of the cup, for emitting light having a predetermined peak wavelength; a layer of first phosphor particles 16, absorbed and formed on the light emitting element, for absorbing light emitted from the light emitting element and for emitting light having a longer peak wavelength than that of the light emitted from the light emitting element; second phosphor particles 18 for absorbing at least one of light emitted from the first phosphor particles and light emitted from the light emitting element and for emitting light having a longer peak wavelength than that of the at least one of the light emitted from the first phosphor particles and the light emitted from the light emitting element; and a sealing member 20, in which the second phosphor particles are dispersed, for sealing the light emitting element and the layer of first phosphor particles in the cupType: GrantFiled: September 28, 2009Date of Patent: June 7, 2011Assignee: Dowa Electronics Materials Co., Ltd.Inventors: Tsukasa Maruyama, Masahiro Gotoh, Tetsuya Ikuta
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Patent number: 7878876Abstract: A light emitting device 10 includes: a lead frame 12a serving as a mounting portion having a cup 13; a light emitting element 14, mounted on the bottom face 13a of the cup, for emitting light having a predetermined peak wavelength; a layer of first phosphor particles 16, adsorbed and formed on the light emitting element, for absorbing light emitted from the light emitting element and for emitting light having a longer peak wavelength than that of the light emitted from the light emitting element; second phosphor particles 18 for absorbing at least one of light emitted from the first phosphor particles and light emitted from the light emitting element and for emitting light having a longer peak wavelength than that of the at least one of the light emitted from the first phosphor particles and the light emitted from the light emitting element; and a sealing member 20, in which the second phosphor particles are dispersed, for sealing the light emitting element and the layer of first phosphor particles in the cupType: GrantFiled: March 26, 2007Date of Patent: February 1, 2011Assignee: Dowa Electronics Materials Co., Ltd.Inventors: Tsukasa Maruyama, Masahiro Gotoh, Tetsuya Ikuta
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Patent number: 7875209Abstract: A method for producing a conductive polyaniline comprising oxidative polymerizing aniline or its derivative in the presence of at least one member of a sulfonic acid compound and a water-insoluble organic polymer compound having protonic acid group in a mixed layer composed of an aqueous layer and organic layer, during which it establishes the presence of a molecular weight adjusting agent and, optionally, a phase transfer catalyst so as to stably disperse them in an organic solvent, and an organic polymer composition containing the conductive polyaniline.Type: GrantFiled: February 18, 2008Date of Patent: January 25, 2011Assignee: The Yokohama Rubber Co., Ltd.Inventors: Tsukasa Maruyama, Yuko Sekine
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Publication number: 20100289405Abstract: A light-emitting device of the present invention includes: a light-emitting element; and a phosphor layer containing phosphors that absorb light from the light-emitting element and wavelength-convert the absorbed light to emit light. The phosphor layer has a structure in which the phosphors are disposed on an applied adhesive with a thickness equal to or less than an average particle size of the phosphors. A thickness of the phosphor layer is equal to or less than five times the average particle size of the phosphors, and an occupancy ratio of the phosphors in the phosphor layer is 50% or more. Further, the phosphors disposed on the adhesive has an adjusted particle size.Type: ApplicationFiled: July 20, 2010Publication date: November 18, 2010Applicant: DOWA ELECTRONICS MATERIALS CO., LTD.Inventors: Tsukasa Maruyama, Tetsuya Ikuta
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Publication number: 20100275979Abstract: A gel-like or solid electrolyte containing (i) an electrolyte solution containing an electrolyte dissolved in an organic solvent, (ii) a lamellar clay mineral and/or an organically modified lamellar clay mineral and (iii) a polyvalent onium salt compound and a photoelectric transducer element and a dye-sensitized solar cell using the same.Type: ApplicationFiled: August 14, 2007Publication date: November 4, 2010Applicant: The Yokohama Rubber Co., Ltd.Inventor: Tsukasa Maruyama
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Patent number: 7812516Abstract: A light-emitting device includes: a light-emitting element whose main emission wavelength is 410 nm or less; and one phosphor layer or more stacked to cover a light-emitting surface of the light-emitting element and containing phosphors that absorb light from the light-emitting element and wavelength-convert the absorbed light to emit light.Type: GrantFiled: November 28, 2007Date of Patent: October 12, 2010Assignee: Dowa Electronics Materials Co., Ltd.Inventors: Tsukasa Maruyama, Tetsuya Ikuta
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Patent number: 7663863Abstract: An electrode for an electric double layer capacitor including a current collector electrode and an active substance carried on the current collector electrode, wherein the active substance is composed of a carbon-based fiber and a conductive polymer fiber formed by the electrospinning method, whereby a high capacity capacitor electrode having of a larger specific surface area than a conventional capacitor electrode and an electric double layer capacitor using the same is provided.Type: GrantFiled: November 20, 2007Date of Patent: February 16, 2010Assignee: The Yokohama Rubber Co., Ltd.Inventors: Tsukasa Maruyama, Ayumu Kamakura
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Publication number: 20100013374Abstract: A light emitting device 10 includes: a lead frame 12a serving as a mounting portion having a cup 13; a light emitting element 14, mounted on the bottom face 13a of the cup, for emitting light having a predetermined peak wavelength; a layer of first phosphor particles 16, absorbed and formed on the light emitting element, for absorbing light emitted from the light emitting element and for emitting light having a longer peak wavelength than that of the light emitted from the light emitting element; second phosphor particles 18 for absorbing at least one of light emitted from the first phosphor particles and light emitted from the light emitting element and for emitting light having a longer peak wavelength than that of the at least one of the light emitted from the first phosphor particles and the light emitted from the light emitting element; and a sealing member 20, in which the second phosphor particles are dispersed, for sealing the light emitting element and the layer of first phosphor particles in the cupType: ApplicationFiled: September 28, 2009Publication date: January 21, 2010Applicant: DOWA ELECTRONICS MATERIALS CO., LTD.Inventors: Tsukasa Maruyama, Masahiro Gotoh, Tetsuya Ikuta
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Publication number: 20100013375Abstract: A light emitting device 10 includes: a lead frame 12a serving as a mounting portion having a cup 13; a light emitting element 14, mounted on the bottom face 13a of the cup, for emitting light having a predetermined peak wavelength; a layer of large phosphor particles 16, absorbed and formed on the light emitting element, for absorbing light emitted from the light emitting element and for emitting light having a longer peak wavelength than that of the light emitted from the light emitting element; small phosphor particles 18, which have a smaller particle diameter than that of the large phosphor particles, for absorbing at least one of light emitted from the large phosphor particles and light emitted from the light emitting element and for emitting light having a longer peak wavelength than that of the at least one of the light emitted from the large phosphor particles and the light emitted from the light emitting element; and a sealing member 20, in which the small phosphor particles are dispersed, for sealinType: ApplicationFiled: September 28, 2009Publication date: January 21, 2010Applicant: DOWA ELECTRONICS MATERIALS CO., LTD.Inventors: Tsukasa Maruyama, Masahiro Gotoh, Tetsuya Ikuta