Patents by Inventor Yasunori Taga
Yasunori Taga 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: 11655347Abstract: In one aspect, the present invention is an organic-inorganic hybrid membrane of a cerium oxide and an organic fluorine compound, the organic-inorganic hybrid membrane satisfying the following (a), (b), and (c): (a) the visible-light transmittance is 70% or higher; (b) the UV transmittance at a wavelength of 380 nm is 60% or lower; and (c) the water contact angle of the surface of the organic-inorganic hybrid membrane is 80° or higher. In another aspect, the present invention is an organic-inorganic hybrid membrane of a cerium oxide and an organic fluorine compound, the organic-inorganic hybrid membrane satisfying the following (a), (b), and (c?): (a) the visible-light transmittance is 70% or higher; (b) the UV transmittance at a wavelength of 380 nm is 60% or lower; and (c?) the water contact angle of the surface of the organic-inorganic hybrid membrane is 90° or higher. The organic fluorine compound may include a fluorine-based resin.Type: GrantFiled: January 16, 2019Date of Patent: May 23, 2023Assignees: HYOMEN KAIMEN KOBO CORPORATION, RIKEN TECHNOS CORPORATIONInventor: Yasunori Taga
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Publication number: 20200339772Abstract: In one aspect, the present invention is an organic-inorganic hybrid membrane of a cerium oxide and an organic fluorine compound, the organic-inorganic hybrid membrane satisfying the following (a), (b), and (c): (a) the visible-light transmittance is 70% or higher; (b) the UV transmittance at a wavelength of 380 nm is 60% or lower; and (c) the water contact angle of the surface of the organic-inorganic hybrid membrane is 80° or higher. In another aspect, the present invention is an organic-inorganic hybrid membrane of a cerium oxide and an organic fluorine compound, the organic-inorganic hybrid membrane satisfying the following (a), (b), and (c?): (a) the visible-light transmittance is 70% or higher; (b) the UV transmittance at a wavelength of 380 nm is 60% or lower; and (c?) the water contact angle of the surface of the organic-inorganic hybrid membrane is 90° or higher. The organic fluorine compound may include a fluorine-based resin.Type: ApplicationFiled: January 16, 2019Publication date: October 29, 2020Inventor: Yasunori TAGA
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Patent number: 9108393Abstract: The present invention is a method of manufacturing a joined structure formed by joining two joining materials. The method includes a joining medium layer forming step and a joining step. In the joining medium layer step, a joining medium layer is formed on a joining surface of at least one of the two joining materials. The joining medium layer includes one or more of elements selected from a group consisting of hydrogen gas, steam gas, alcohol gas, hydrogen peroxide gas, organometallic compound, and silane coupling agent. In the joining step, the two joining materials arranged one over the other via the joining medium layer are heated and/or irradiated by electromagnetic waves.Type: GrantFiled: July 23, 2010Date of Patent: August 18, 2015Inventor: Yasunori Taga
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Publication number: 20110256405Abstract: The present invention is a method of manufacturing a joined structure formed by joining two joining materials. The method includes a joining medium layer forming step and a joining step. In the joining medium layer step, a joining medium layer is formed on a joining surface of at least one of the two joining materials. The joining medium layer includes one or more of elements selected from a group consisting of hydrogen gas, steam gas, alcohol gas, hydrogen peroxide gas, organometallic compound, and silane coupling agent. In the joining step, the two joining materials arranged one over the other via the joining medium layer are heated and/or irradiated by electromagnetic waves.Type: ApplicationFiled: July 23, 2010Publication date: October 20, 2011Inventor: Yasunori Taga
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Patent number: 7521567Abstract: The objectives of this invention are to extend the range of choosing materials to use in the preparation of photopolymerizable compositions by providing a novel organic compound which absorbs a visible light; or to provide an orgamc material which is useful as host compound in organic electroluminescent devices, as well as its uses: The objectives are attainable by providing an aromatic tertiary amine compound bearing within the same molecule one or more specific atomic groups, a luminescent agent directed to use in organic electroluminescent devices comprising it, and an organic electroluminescent device using such amine compound, as well as its uses.Type: GrantFiled: July 7, 2004Date of Patent: April 21, 2009Assignee: Kabushiki Kaisha Hayashibara Seibutsu Kagaku KenkyujoInventors: Makoto Fujiwara, Natsuko Sonoda, Makoto Satsuki, Sadaharu Suga, Hisayoshi Fujikawa, Koji Noda, Yasunori Taga
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Patent number: 7514158Abstract: A method for producing a coumarin compound represented by Formula 1, which comprises a step of reacting a coumarin compound represented by Formula 1 with a compound having an aldehyde group and an activated methylene group; luminous agents for organic EL elements and organic EL elements which all comprise the coumarin compound; and displaying panels and information displaying apparatuses using the organic EL elements: ø(Z)m??Formula 1 wherein in Formula 1, ø is an aromatic ring, heterocycle, or a combination thereof, each Z is the same or a different coumarin group represented by Formula 2; and m is an integer of two or more;Type: GrantFiled: December 10, 2002Date of Patent: April 7, 2009Assignee: Kabushiki Kaisha Hayashibara Seibutsu Kagaku KenkyujoInventors: Makoto Satsuki, Makoto Fujiwara, Natsuko Ishida, Sadaharu Suga, Hisayoshi Fujikawa, Hisato Takeuchi, Yasunori Taga
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Patent number: 7419727Abstract: This invention has an objective to improve durability at elevated temperature in organic electroluminescent devices using coumarin derivatives as dopant in a luminescent layer. This invention attains the above objective by providing in the organic electroluminescent devices formed by laminating an anode, a hole injection layer, a hole transportation layer, a luminescent layer, an electron transportation layer and a cathode in this order, the luminescent layer which comprises as dopant the green light-emitting coumarin derivative and hole- and electron-transporting substances as host; said coumarin derivative consisting of a plurality of coumarin groups bound to an aromatic ring, heterocycle, or any combination thereof, and exhibiting a glass transition point of 150° C. or higher or a melting point of 297° C. or higher.Type: GrantFiled: February 12, 2004Date of Patent: September 2, 2008Assignee: Kabushiki Kaisha Hayashibara Seibutsu Kagaku KenkyujoInventors: Kazushige Kojima, Kojiro Tachi, Hisayoshi Fujikawa, Koji Noda, Masahiko Ishii, Yasunori Taga, Makoto Satsuki, Makoto Fujiwara, Natsuko Ishida, Sadaharu Suga
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Patent number: 7375225Abstract: 4-Cyanocoumarin derivatives which have a distinct sensitivity to visible light, distinct luminescent ability, and satisfactory applicability for photochemical polymerization, dye lasers, and organic electroluminescent elements. Since most of the derivatives have a fluorescent maximum wavelength of 600 to 650 nm, particularly, 610 to 630 nm, they are extremely useful as luminescent agents for organic EL elements which emit visible light in a red-color region, and can be quite useful as luminescent agents in organic EL elements and laser-active substances in dye lasers, as well as luminous bodies as lighting sources for lighting devices, and information displays for visually displaying information.Type: GrantFiled: January 21, 2003Date of Patent: May 20, 2008Assignee: Kabushiki Kaisha Hayashibara Seibutsu Kagaku KenkyujoInventors: Yoshio Taniguchi, Toshiki Koyama, Chihaya Adachi, Tomoyasu Saitou, Makoto Satsuki, Akira Shinpo, Sadaharu Suga, Shizuo Tokito, Hisayoshi Fujikawa, Koji Noda, Atsushi Miura, Yasunori Taga
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Patent number: 7338720Abstract: An organic electroluminescent (EL) device which uses, as a luminescence-assisting agent, a novel coumarin derivative with a specific structure. The coumarin derivative effectively accelerates in such an organic EL device the transfer of excited energy in a host compound to a guest compound. Thus, the coumarin derivative affords the organic EL device which is superior in a color purity, luminescent efficiency and life expectancy when used in combination with appropriate host and guest compounds.Type: GrantFiled: April 23, 2002Date of Patent: March 4, 2008Assignee: Kabushiki Kaisha Toyota JidoshokkiInventors: Makoto Satsuki, Natsuko Ishida, Sadaharu Suga, Hisayoshi Fujikawa, Yasunori Taga, Satoshi Nakagawa, Takanori Murasaki, Yoshifumi Kato
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Patent number: 7326055Abstract: The invention relates to a method for bleaching teeth in which a solution of a nitrogen-doped titanium oxide powder is contacted on a surface of the teeth and the surface of the teeth is irradiated to bleach the surface of the teeth-by activating a photocatalytic reaction.Type: GrantFiled: May 17, 2006Date of Patent: February 5, 2008Assignee: GC CorporationInventors: Shin Yamaguchi, Toshihiro Sekiguchi, Keisuke Ikushima, Shoji Akahane, Koyu Aoki, Takeshi Morikawa, Takeshi Ohwaki, Yasunori Taga
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Patent number: 7279239Abstract: In a laminate product formed by an organic member and/or an inorganic member, high strength adhesion between the organic member and the inorganic member is achieved by providing an adhesion layer which includes amorphous carbon nitride (a-CNx:H) particularly between the organic member and the inorganic member. Further, in order to protect a laminate product formed by an organic member and/or an inorganic member, for example, an organic electronic element including an organic compound layer, such as an organic electroluminescence element, a protective film including at least amorphous carbon nitride and a protective layer having a laminate structure formed by sandwiching a vapor deposition inorganic film between plasma polymerized films are used. Thus, a protective film which is optimum to an organic electronic element, having high bending stress resistance, high shielding effect against moisture and oxygen existing in the air, and excellent resistance to high temperature and high humidity can be provided.Type: GrantFiled: August 7, 2003Date of Patent: October 9, 2007Assignee: Kabushiki Kaisha Toyota Chuo KenkyushoInventors: Kunio Akedo, Koji Noda, Atsushi Miura, Hisayoshi Fujikawa, Yasunori Taga
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Patent number: 7252892Abstract: An organic electroluminescent (EL) device which contains a novel coumarin derivative composed of a coumarin ring, a naphthalene ring with one or more hydrocarbon groups, and a five-membered hetero ring condensed with the naphthalene ring so as to give an electronic resonance through the coumarin and naphthalene rings. The coumarin derivative emits a visible luminescence with a satisfactory color purity, which consistently continues over a long period of time even at an elevated temperature when used in such an organic device.Type: GrantFiled: April 23, 2002Date of Patent: August 7, 2007Assignees: Kabushiki Kaisha Hayashibara Seibutsu Kagaku Kenkyujo, Kabushiki Kaisha Toyota JidoshokkiInventors: Makoto Satsuki, Natsuko Ishida, Sadaharu Suga, Hisayoshi Fujikawa, Yasunori Taga
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Patent number: 7250155Abstract: To eliminate a defect in conventional dental bleaching agent, that light for activating titanium oxide hardly reaches down to the titanium oxide at the teeth surface to be bleached, a dental bleaching agent set consists of two components of which the first component is attached to teeth surface and irradiation of light is followed after the second component is contacted on the teeth surface, the first component consisting of an organic solvent, containing at least one of a titanium oxide, a nitrogen doped titanium oxide, and a titanium oxinitride having photocatalytic activities, and preferably one or more of a metal oxide, a metal salt, and a metal powder, a thickener and water, the second component consisting of a compound that produces hydrogen peroxide in water, a thickener and a carrier.Type: GrantFiled: March 4, 2004Date of Patent: July 31, 2007Assignees: GC Corporation, Kaisha Toyota Chuo KenkyushoInventors: Shin Yamaguchi, Toshihiro Sekiguchi, Keisuke Ikushima, Shoji Akahane, Koyu Aoki, Takeshi Morikawa, Takeshi Ohwaki, Yasunori Taga
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Patent number: 7205964Abstract: The invention provides electroluminescent (EL) elements, such that a red EL light source, a green EL light source and a blue EL light source emit red color light, green color light, and blue color light, respectively, and are disposed at the rear of liquid crystal display elements. Each EL light source includes an organic EL element in which an organic thin film emits light. Each EL light source has a structure in which an organic luminescent layer is sandwiched between an indium tin oxide (ITO) electrode and a metal electrode which have striped patterns which are orthogonal to each other, and sections (luminescent sections) at which the striped patterns of the ITO electrode and the metal electrode intersect with each other emit light. The luminescent sections are arrayed two-dimensionally on a glass substrate and illuminate the entire display area of the liquid crystal display element.Type: GrantFiled: April 25, 2000Date of Patent: April 17, 2007Assignee: Seiko Epson CorporationInventors: Osamu Yokoyama, Satoru Miyashita, Tatsuya Shimoda, Yasunori Taga, Shizuo Tokito, Koji Noda
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Publication number: 20060264525Abstract: Photocatalytic coating compositions contain a photocatalytic material such as obtained by doping nitrogen atoms to an interstitial site of metal oxide crystals, a titanium compound having a specific structure, an organosilane hydrolysate having a specific structure, and an organosiloxane oligomer having a specific structure. The photocatalytic coating compositions can give coating films that exhibit adequate photocatalytic action even in an environment with less spectral components having wavelengths of 400 nm or below and more visible light, for example in an indoor environment and in vehicle interiors having UV protection glass, and that have high transparency. Further, the photocatalytic coating compositions have good storage stability of dispersions.Type: ApplicationFiled: March 4, 2004Publication date: November 23, 2006Applicant: JSR CorporationInventors: Takeshi Ohwaki, Takeshi Morikawa, Koyu Aoki, Kenichi Suzuki, Yasunori Taga, Tarou Kanamori, Nakaatsu Yoshimura, Satoshi Ishikawa, Akira Nishikawa
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Publication number: 20060226421Abstract: The objectives of this invention are to extend the range of choosing materials to use in the preparation of photopolymerizable compositions by providing a novel organic compound which absorbs a visible light; or to provide an organic material which is useful as host compound in organic electroluminescent devices, as well as its uses: The objectives are attainable by providing an aromatic tertiary amine compound bearing within the same molecule one or more specific atomic groups, a luminescent agent directed to use in organic electroluminescent devices comprising it, and an organic electroluminescent device using such amine compound, as well as its uses.Type: ApplicationFiled: July 7, 2004Publication date: October 12, 2006Applicant: Kabushiki Kaisha Hayashibara Seibutsu KenkyujoInventors: Makoto Fujiwara, Natsuko Sonoda, Makoto Satsuki, Sadaharu Suga, Hisayoshi Fujikawa, Koji Noda, Yasunori Taga
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Publication number: 20060222604Abstract: A method for bleaching teeth comprises steps of applying a solution containing nitrogen-deeped titanium oxide powder on a surface of teeth, and irradiating the applied part with light to bleach the teeth based on a photocatalytic action thus produced, and a bleaching agent for teeth suitable for carrying out the method comprises a solution containing nitrogen deeped titanium oxide powder, in which the nitrogen-deeped titanium oxide is preferably a photocatalytic substance having a Ti—O—N structure having a titanium oxide crystalline lattice containing nitrogen and exhibiting a photocatalytic action in a visible light region, the bleaching agent contains preferably 0.01 to 5% by weight of the nitrogen-deeped titanium oxide powder, the nitrogen-deeped titanium oxide powder has a specific surface area of from 10 to 500 m2/g, the solution contains water and/or an alcohol as a solvent, and the bleaching agent further contains preferably 0.Type: ApplicationFiled: May 17, 2006Publication date: October 5, 2006Applicant: GC CorporationInventors: Shin Yamaguchi, Toshihiro Sekiguchi, Keisuke Ikushima, Shoji Akahane, Koyu Aoki, Takeshi Morikawa, Takeshi Ohwaki, Yasunori Taga
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Publication number: 20060192473Abstract: This invention has an objective to improve durability at elevated temperature in organic electroluminescent devices using coumarin derivatives as dopant in a luminescent layer. This invention attains the above objective by providing in the organic electroluminescent devices formed by laminating an anode, a hole injection layer, a hole transportation layer, a luminescent layer, an electron transportation layer and a cathode in this order, the luminescent layer which comprises as dopant the green light-emitting coumarin derivative and hole- and electron-transporting substances as host; said coumarin derivative consisting of a plurality of coumarin groups bound to an aromatic ring, heterocycle, or any combination thereof, and exhibiting a glass transition point of 150° C. or higher or a melting point of 297° C. or higher.Type: ApplicationFiled: February 12, 2004Publication date: August 31, 2006Inventors: Kazushige Kojima, Kojiro Tachi, Hisayoshi Fujikawa, Koji Noda, Masahiko Ishii, Yasunori Taga, Makoto Satsuki, Makoto Fujiwara, Natsuko Ishida, Sadaharu Suga
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Publication number: 20050275341Abstract: A method for producing a coumarin compound represented by Formula 1, which comprises a step of reacting a coumarin compound represented by Formula 1 with a compound having an aldehyde group and an activated methylene group; luminous agents for organic EL elements and organic EL elements which all comprise the coumarin compound; and displaying panels and information displaying apparatuses using the organic EL elements: ø(Z)m??Formula 1 wherein in Formula 1, ø is an aromatic ring, heterocycle, or a combination thereof, each Z is the same or a different coumarin group represented by Formula 2; and m is an integer of two or more; Formula 2:Type: ApplicationFiled: December 10, 2002Publication date: December 15, 2005Inventors: Makoto Satsuki, Makoto Fujiwara, Natsuko Ishida, Sadaharu Suga, Hisayoshi Fujikawa, Hisato Takeuchi, Yasunori Taga
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Publication number: 20050089713Abstract: Disclosed is the use of a novel coumarin derivative with a specific molecular structure. The physical and optical properties of said coumarin derivative render it very useful as a luminescence-assisting agent to be used in highly durable organic EL devices.Type: ApplicationFiled: April 23, 2002Publication date: April 28, 2005Inventors: Makoto Satsuki, Nasuko Ishida, Sadaharu Suga, Hisayoshi Fujikawa, Yasunori Taga, Satoshi Nakagawa, Takanori Murasaki, Yoshifumi Kato