Patents by Inventor Shinpei Kinoshita
Shinpei Kinoshita 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: 8169131Abstract: A lamp includes a light-emitting body that converts electric energy into light energy and a translucent glass covering the light-emitting body, wherein a phosphor layer is provided on at least inner or outer surface of the translucent glass. The phosphor layer includes a fluorescent material including a first phosphor that at least partially converts energy emitted by an excitation source, which emits ultraviolet having a wavelength of about 365 nm, to a first emission spectrum that is different from the energy, and a second phosphor that at least partially converts the first emission spectrum to a second emission spectrum. Peak wavelengths of the emission spectrum of the first and second phosphors have a relation of complementary colors so that when the light created due to the peak wavelengths of the first and second phosphors are mixed, the resulting light is in the white region.Type: GrantFiled: December 19, 2008Date of Patent: May 1, 2012Assignee: Nichia CorporationInventors: Yoshinori Murazaki, Shinpei Kinoshita, Masatoshi Kameshima, Suguru Takashima, Hiroto Tamaki
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Patent number: 7723740Abstract: A light emitting device that light of various colors by blending lights emitted by two or more kinds of fluorescent materials which are substantially directly excited by light emitted by an excitation source having principal emission peak in a range from 250 nm to 500 nm. Each of the fluorescent materials is of a direct-transition type.Type: GrantFiled: September 16, 2004Date of Patent: May 25, 2010Assignee: Nichia CorporationInventors: Suguru Takashima, Masatoshi Kameshima, Hiroto Tamaki, Junji Takeichi, Yoshinori Murazaki, Shinpei Kinoshita
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Patent number: 7658866Abstract: A fluorescent material includes first and second phosphors. The first phosphor is a light-storing phosphor, which is represented by the general formula (M1-a-bEuaQb)Al2O4, wherein M is one type selected from the group consisting of Mg, Ca, Ba, Sr and Zn; Q is one type selected from the group consisting of Pr, Nd, Dy, Er and Ho; a is a number that satisfies 0.0001?a?0.5; and b is a number that satisfies 0.010?b?0.5. When the fluorescent material is excited for about 15 minutes by ultraviolet irradiation having about 365.0 nm wavelength with an intensity of 0.5 mW/cm2, and the color of the afterglow of the fluorescent material is measured 1 minute and 10 minutes after excitation is terminated, an amount of change between chromaticity measured 1 minute after excitation and that measured 10 minutes is in the range of ?0.001?x?0.009 and ?0.009?y?0.006.Type: GrantFiled: December 8, 2008Date of Patent: February 9, 2010Assignee: Nichia CorporationInventors: Yoshinori Murazaki, Shinpei Kinoshita, Masatoshi Kameshima, Suguru Takashima, Hiroto Tamaki
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Publication number: 20090096370Abstract: A lamp includes a light-emitting body that converts electric energy into light energy and a translucent glass covering the light-emitting body, wherein a phosphor layer is provided on at least inner or outer surface of the translucent glass. The phosphor layer includes a fluorescent material including a first phosphor that at least partially converts energy emitted by an excitation source, which emits ultraviolet having a wavelength of about 365 nm, to a first emission spectrum that is different from the energy, and a second phosphor that at least partially converts the first emission spectrum to a second emission spectrum. Peak wavelengths of the emission spectrum of the first and second phosphors have a relation of complementary colors so that when the light created due to the peak wavelengths of the first and second phosphors are mixed, the resulting light is in the white region.Type: ApplicationFiled: December 19, 2008Publication date: April 16, 2009Applicant: NICHIA CORPORATIONInventors: Yoshinori MURAZAKI, Shinpei KINOSHITA, Masatoshi KAMESHIMA, Suguru TAKASHIMA, Hiroto TAMAKI
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Publication number: 20090085458Abstract: A fluorescent material includes first and second phosphors. The first phosphor is a light-storing phosphor, which is represented by the general formula (M1-a-bEuaQb)Al2O4, wherein M is one type selected from the group consisting of Mg, Ca, Ba, Sr and Zn; Q is one type selected from the group consisting of Pr, Nd, Dy, Er and Ho; a is a number that satisfies 0.0001?a?0.5; and b is a number that satisfies 0.010?b?0.5. When the fluorescent material is excited for about 15 minutes by ultraviolet irradiation having about 365.0 nm wavelength with an intensity of 0.5 mW/cm2, and the color of the afterglow of the fluorescent material is measured 1 minute and 10 minutes after excitation is terminated, an amount of change between chromaticity measured 1 minute after excitation and that measured 10 minutes is in the range of ?0.001?x?0.009 and ?0.009?y?0.006.Type: ApplicationFiled: December 8, 2008Publication date: April 2, 2009Applicant: NICHIA CORPORATIONInventors: Yoshinori MURAZAKI, Shinpei KINOSHITA, Masatoshi KAMESHIMA, Suguru TAKASHIMA, Hiroto TAMAKI
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Patent number: 7488432Abstract: The present invention provides a fluorescent material comprising a light-storing first phosphor that at least partially converts energy emitted by an excitation source to a first emission spectrum that is different from the energy, and a second phosphor that at least partially converts the first emission spectrum to a second emission spectrum that is different from the first emission spectrum; a lamp equipped with such a fluorescent material; a light-emitting device that produces a whitish afterglow, comprising such a fluorescent material for converting the emission by an LED chip; and a display unit comprising a display equipped with a plurality of such light-emitting devices.Type: GrantFiled: October 27, 2004Date of Patent: February 10, 2009Assignee: Nichia CorporationInventors: Yoshinori Murazaki, Shinpei Kinoshita, Masatoshi Kameshima, Suguru Takashima, Hiroto Tamaki
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Publication number: 20050212397Abstract: The present invention provides a fluorescent material comprising a light-storing first phosphor that at least partially converts energy emitted by an excitation source to a first emission spectrum that is different from the energy, and a second phosphor that at least partially converts the first emission spectrum to a second emission spectrum that is different from the first emission spectrum; a lamp equipped with such a fluorescent material; a light-emitting device that produces a whitish afterglow, comprising such a fluorescent material for converting the emission by an LED chip; and a display unit comprising a display equipped with a plurality of such light-emitting devices.Type: ApplicationFiled: October 27, 2004Publication date: September 29, 2005Applicant: NICHIA CORPORATIONInventors: Yoshinori Murazaki, Shinpei Kinoshita, Masatoshi Kameshima, Suguru Takashima, Hiroto Tamaki
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Publication number: 20050156496Abstract: A light emitting device that emits light of various colors by blending lights emitted by two or more kinds of fluorescent materials which are substantially directly excited by the light emitted by an excitation source having principal emission peak in a range from 250 nm to 500 nm. Each of the fluorescent material is of a direct-transition type.Type: ApplicationFiled: September 16, 2004Publication date: July 21, 2005Inventors: Suguru Takashima, Masatoshi Kameshima, Hiroto Tamaki, Junji Takeichi, Yoshinori Murazaki, Shinpei Kinoshita