Patents Assigned to Kabushiki Kaisha Fine Rubber Kenkyuusho
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Patent number: 7691293Abstract: A red light-emitting phosphor capable of emitting red light upon excitation with light having a wavelength of 350 to 420 nm, represented by the following compositional formula (1): A(1-x)Eu(1-x-y)LnyD2xM2O8??(1) wherein A is at least one element selected from the group consisting of Li, Na, K, Rb and Cs, Ln is at least one element selected from rare earth elements including Y but excluding Eu, D is at least one element selected from the group consisting of Mg, Ca, Sr and Ba, M is at least one element selected from Mo and W, x is a positive number satisfying 0<x?0.7, and y is 0 or a positive number satisfying 0<y?0.5, and x+y is a number satisfying 0<x+y?0.7.Type: GrantFiled: September 1, 2006Date of Patent: April 6, 2010Assignee: Kabushiki Kaisha Fine Rubber KenkyuushoInventors: Tsutomu Odaki, Tsutomu Takano
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Publication number: 20080001122Abstract: A red light-emitting phosphor capable of emitting red light upon excitation with light having a wavelength of 350 to 420 nm, represented by the following compositional formula (1): A(1-x)Eu(1-x-y)LnyD2xM2O8 ??(1) wherein A is at least one element selected from the group consisting of Li, Na, K, Rb and Cs, Ln is at least one element selected from rare earth elements including Y but excluding Eu, D is at least one element selected from the group consisting of Mg, Ca, Sr and Ba, M is at least one element selected from Mo and W, x is a positive number satisfying 0<x?0.7, and y is 0 or a positive number satisfying 0<y?0.5, and x+y is a number satisfying 0<x+y?0.7.Type: ApplicationFiled: September 1, 2006Publication date: January 3, 2008Applicant: Kabushiki Kaisha Fine Rubber KenkyuushoInventors: Tsutomu Odaki, Tsutomu Takano
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Patent number: 7274953Abstract: A dielectric sheet is attached to the inner surface of the portable telephone housing. The dielectric sheet extends in the area between the user's head and a whip antenna of the portable telephone. The real part and the imaginary part of the relative dielectric constant of the dielectric sheet is properly selected such that the dielectric sheet can reduce SAR (Specific Absorption Rate) and improve antenna efficiency.Type: GrantFiled: March 5, 2004Date of Patent: September 25, 2007Assignee: Kabushiki Kaisha Fine Rubber KenkyuushoInventors: Kazuhisa Takagi, Yuko Furukawa, Yuji Koyamashita, Shigeru Kusunoki, Sohji Tsuchiya
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Patent number: 7238304Abstract: As a green light emitting phosphor capable of emission upon excitation with light having a wavelength of 350 to 500 nm, characterized in containing Tb3+ ions as emission ions in high concentrations without causing concentration quenching, the present invention provides a green light emitting phosphor capable of emission upon excitation with light having a wavelength of 350 to 500 nm, characterized by having a composition represented by the compositional formula (1): ATbxLn(1-x)M2O8??(1) wherein A is at least one element selected from the group consisting of Li, Na, K, and Ag, Ln is at least one element selected from rare earth elements including Y and excluding Tb, M is at least one element selected from the group consisting of Mo and W, and x is a positive number satisfying 0.4?x?1, and a light emitting device incorporated with the green light emitting phosphor.Type: GrantFiled: August 2, 2004Date of Patent: July 3, 2007Assignee: Kabushiki Kaisha Fine Rubber KenkyuushoInventor: Tsutomu Odaki
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Patent number: 6982523Abstract: As a red light emitting phosphor capable of efficiently emitting red light at a high luminance in response to exciting light having a wavelength of 350-420 nm, and practically used in a light emitting device for red display or a light emitting device for white or intermediate color display in combination with green and blue light emitting phosphors, the invention provides a red light emitting phosphor capable of emitting red light upon excitation with light having a wavelength of 350-420 nm and having compositional formula (1): AEuxLn(1-x)M2O8??(1) wherein A is at least one element selected from among Li, Na, K, Rb and Cs, Ln is at least one element selected from among Y and rare earth elements exclusive of Eu, M is at least one element selected from among W and Mo, and x is a positive number satisfying 0<x?1; and a red light emitting phosphor having compositional formula (2): D0.Type: GrantFiled: January 28, 2003Date of Patent: January 3, 2006Assignee: Kabushiki Kaisha Fine Rubber KenkyuushoInventor: Tsutomu Odaki
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Publication number: 20050075150Abstract: A dielectric sheet is attached to the inner surface of the portable telephone housing. The dielectric sheet extends in the area between the user's head and a whip antenna of the portable telephone. The real part and the imaginary part of the relative dielectric constant of the dielectric sheet is properly selected such that the dielectric sheet can reduce SAR (Specific Absorption Rate) and improve antenna efficiency.Type: ApplicationFiled: March 5, 2004Publication date: April 7, 2005Applicant: KABUSHIKI KAISHA FINE RUBBER KENKYUUSHOInventors: Kazuhisa Takagi, Yuko Furukawa, Yuji Koyamashita, Shigeru Kusunoki, Sohji Tsuchiya
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Publication number: 20050062403Abstract: As a green light emitting phosphor capable of emission upon excitation with light having a wavelength of 350 to 500 nm, characterized in containing Tb3+ ions as emission ions in high concentrations without causing concentration quenching, the present invention provides a green light emitting phosphor capable of emission upon excitation with light having a wavelength of 350 to 500 nm, characterized by having a composition represented by the compositional formula (1): ATbxLn(1-x)M2O8??(1) wherein A is at least one element selected from the group consisting of Li, Na, K, and Ag, Ln is at least one element selected from rare earth elements including Y and excluding Tb, M is at least one element selected from the group consisting of Mo and W, and x is a positive number satisfying 0.4?x?1, and a light emitting device incorporated with the green light emitting phosphor.Type: ApplicationFiled: August 2, 2004Publication date: March 24, 2005Applicant: Kabushiki Kaisha Fine Rubber KenkyuushoInventor: Tsutomu Odaki
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Publication number: 20040145307Abstract: As a red light emitting phosphor capable of efficiently emitting red light at a high luminance in response to exciting light having a wavelength of 350-420 nm, and practically used in a light emitting device for red display or a light emitting device for white or intermediate color display in combination with green and blue light emitting phosphors, the invention provides a red light emitting phosphor capable of emitting red light upon excitation with light having a wavelength of 350-420 nm and having compositional formula (1):Type: ApplicationFiled: January 28, 2003Publication date: July 29, 2004Applicant: Kabushiki Kaisha Fine Rubber KenkyuushoInventor: Tsutomu Odaki
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Patent number: 5336442Abstract: An extension type conductive rubber framed by impregnating a cross-linked conductive silicone rubber that contains suspended carbon particles, with a silicone oil having a compatibility with that conductive silicone rubber. The preferred extension type conductive rubber exhibits a predictable decrease in its electrical resistance when extended that directly relates to the magnitude of that extension, and thus can be used as a sensor for sensing various physical quantities such as a displacement, tensile force or pressure on the basis of the relationship between its extension and electrical resistance. In use, first and second electrodes are mounted to a section of the extension type conductive rubber so as to provide a press fit against the rubber and are spaced apart. The electrical resistance across the electrodes or their equivalent structure is sensed during an application of force to the rubber.Type: GrantFiled: February 21, 1990Date of Patent: August 9, 1994Assignee: Kabushiki Kaisha Fine Rubber KenkyuushoInventor: Hiroshi Kuramochi