Patents by Inventor Kimiya Takeshita
Kimiya Takeshita 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: 9028718Abstract: To achieve a light-emitting device emitting light with high brightness, closer to natural light, and less color shift due to a small change in intensity of emitted light, in a light-emitting device including a light source emitting light by driving current and at least one wavelength-converting material absorbing at least part of the light from the light source and emitting light having a different wavelength, the color coordinate x1(17.5) and the color coordinate y1(17.5) of the light emitted at a driving current density of 17.5 A/cm2 and the color coordinate x1(70) and the color coordinate y1(70) of the light emitted at a driving current density of 70 A/cm2 satisfy the following Expressions (D) and (E): ?0.006?x1(17.5)?x1(70)?0.006??(D), ?0.006?y1(17.5)?y1(70)?0.006??(E).Type: GrantFiled: June 26, 2012Date of Patent: May 12, 2015Assignee: Mitsubishi Chemical CorporationInventors: Naoto Kijima, Yasuo Shimomura, Hideaki Kaneda, Kimiya Takeshita
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Publication number: 20120267997Abstract: To achieve a light-emitting device emitting light with high brightness, closer to natural light, and less color shift due to a small change in intensity of emitted light, in a light-emitting device including a light source emitting light by driving current and at least one wavelength-converting material absorbing at least part of the light from the light source and emitting light having a different wavelength, the color coordinate x1(17.5) and the color coordinate y1(17.5) of the light emitted at a driving current density of 17.5 A/cm2 and the color coordinate x1(70) and the color coordinate y1(70) of the light emitted at a driving current density of 70 A/cm2 satisfy the following Expressions (D) and (E): ?0.006?x1(17.5)?x1(70)?0.006??(D), ?0.006?y1(17.5)?y1(70)?0.006??(E).Type: ApplicationFiled: June 26, 2012Publication date: October 25, 2012Applicant: MITSUBISHI CHEMICAL CORPORATIONInventors: Naoto KIJIMA, Yasuo SHIMOMURA, Hideaki KANEDA, Kimiya TAKESHITA
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Patent number: 8269410Abstract: To achieve a light-emitting device emitting light with high brightness, closer to natural light, and less color shift due to a small change in intensity of emitted light, in a light-emitting device including a light source emitting light by driving current and at least one wavelength-converting material absorbing at least part of the light from the light source and emitting light having a different wavelength, the color coordinate x1(17.5) and the color coordinate y1(17.5) of the light emitted at a driving current density of 17.5 A/cm2 and the color coordinate x1(70) and the color coordinate y1(70) of the light emitted at a driving current density of 70 A/cm2 satisfy the following Expressions (D) and (E): ?0.006?x1(17.5)?x1(70)?0.006??(D), ?0.006?y1(17.5)?y1(70)?0.006??(E).Type: GrantFiled: March 17, 2006Date of Patent: September 18, 2012Assignee: Mitsubishi Chemical CorporationInventors: Naoto Kijima, Yasuo Shimomura, Hideaki Kaneda, Kimiya Takeshita
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Patent number: 8232717Abstract: To achieve a light-emitting device emitting light with high brightness, closer to natural light, and less color shift due to a small change in intensity of emitted light, in a light-emitting device including a light source emitting light by driving current and at least one wavelength-converting material absorbing at least part of the light from the light source and emitting light having a different wavelength, the color coordinate x1(17.5) and the color coordinate y1(17.5) of the light emitted at a driving current density of 17.5 A/cm2 and the color coordinate x1(70) and the color coordinate y1(70) of the light emitted at a driving current density of 70 A/cm2 satisfy the following Expressions (D) and (E): ?0.006?x1(17.5)?x1(70)?0.006??(D), ?0.006?y1(17.5)?y1(70)?0.006??(E).Type: GrantFiled: March 17, 2006Date of Patent: July 31, 2012Assignee: Mitsubishi Chemical CorporationInventors: Naoto Kijima, Yasuo Shimomura, Hideaki Kaneda, Kimiya Takeshita
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Publication number: 20090140630Abstract: To achieve a light-emitting device emitting light with high brightness, closer to natural light, and less color shift due to a small change in intensity of emitted light, in a light-emitting device including a light source emitting light by driving current and at least one wavelength-converting material absorbing at least part of the light from the light source and emitting light having a different wavelength, the color coordinate x1(17.5) and the color coordinate y1(17.5) of the light emitted at a driving current density of 17.5 A/cm2 and the color coordinate x1(70) and the color coordinate y1(70) of the light emitted at a driving current density of 70 A/cm2 satisfy the following Expressions (D) and (E): ?0.006?x1(17.5)?x1(70)?0.006??(D), ?0.006?y1(70)?y1(70)?0.006??(E).Type: ApplicationFiled: March 17, 2006Publication date: June 4, 2009Applicant: Mitsubishi Chemical CorporationInventors: Naoto Kijima, Yasuo Shimomura, Hideaki Kaneda, Kimiya Takeshita
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Patent number: 6706330Abstract: The invention relates to a process for coating a surface through graft polymerization, characterized in that before graft polymerization, the surface is modified, in the presence of an amine of formula: wherein R1 is hydrogen or a group R4, R2 and R3 are each independently a group R4, and R4 is [-1,2-C2-C3alkylen-T-]n-H wherein T is O or NH and n is a number from 1 to 3, by a compound having a functional group: wherein R5 to R7 are each C1-C4alkyl. The amount of amine is preferably from 5 to 500 g/m2 of surface of the substrate particle. The amount of the trialkoxysilane compound is preferably from 0.1 to 2 g/m2 of surface of the substrate particle. The process for coating a surface is particularly useful for effect pigments.Type: GrantFiled: May 17, 2002Date of Patent: March 16, 2004Assignee: Ciba Specialty Chemicals CorporationInventors: Ryuichi Takahashi, Adrian Schulthess, Kimiya Takeshita, Fritz Herren, Patrice Bujard
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Publication number: 20020188039Abstract: The invention relates to a collection of composite plateletlike particles comprising a core and at least one coating layer consisting essentially of a compound having from 60 to 95% by weight of carbon and from 5 to 25% by weight of nitrogen, the balance to 100% being selected from elements of the group consisting of hydrogen, oxygen and sulfur.Type: ApplicationFiled: May 17, 2002Publication date: December 12, 2002Inventors: Ryuichi Takahashi, Adrian Schulthess, Kimiya Takeshita, Fritz Herren, Patrice Bujard
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Patent number: 6436538Abstract: The invention relates to a collection of composite plateletlike particles comprising a core and at least one coating layer consisting essentially of a compound having from 60 to 95% by weight of carbon and from 5 to 25% by weight of nitrogen, the balance to 100% being selected from elements of the group consisting of hydrogen, oxygen and sulfur. The invention also relates to processes for the manufacture thereof, to polymer compositions containing it, and to the use thereof as effect pigments.Type: GrantFiled: August 13, 1999Date of Patent: August 20, 2002Assignee: Ciba Specialty Chemicals CorporationInventors: Ryuichi Takahashi, Adrian Schulthess, Kimiya Takeshita, Fritz Herren, Patrice Bujard
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Patent number: 6113683Abstract: Colored pearlescent pigment comprising a pearlescent pigment and a second pigment, characterized in using an adhesion promotor for the mutual adsorbance of the pearlescent pigment and the second pigment, whereby the adhesion promotor is a polymer containing hydroxy groups, a process for its preparation, its use and a colored high molecular weight material.Type: GrantFiled: November 10, 1998Date of Patent: September 5, 2000Assignee: Ciba Specialty Chemicals CorporationInventors: Fritz Herren, Kimiya Takeshita, Michel Fran.cedilla.ois
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Patent number: 5696314Abstract: An electrochemical sensor is designed for use in detecting a concentration of an analyte in a sample solution. The sensor to have a longer useful lifetime, improved stability and improved response time for single or multiple use applications. In one aspect, some of these goals are achieved by providing the multilayer enzyme electrode membrane having both nonporous and microporous layers. The microporous layer is formed from a polymer binder, a polymer powder, a surfactant and a mineral powder. In another aspect, certain of these goals are achieved by the use of a layer comprised of an enzyme disposed within a polymer matrix. In certain embodiments, the multilayer enzyme electrode membrane includes an outermost layer which is capable of dissolving in the sample solution such that the interface between the multilayer enzyme electrode membrane and the sample solution is continually renewed.Type: GrantFiled: July 12, 1996Date of Patent: December 9, 1997Assignee: Chiron Diagnostics CorporationInventors: Robert McCaffrey, Bonnie Dalzell, Katarina Tkacik, Susan Holbert, Mark Boden, James Flaherty, Michael Flanagan, Josef Brown, Kimiya Takeshita, Peter Edelman