Patents by Inventor Mayu Kameda

Mayu Kameda 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).

  • Patent number: 9181479
    Abstract: A retardation element containing a liquid crystalline compound, and at least one compound selected from the group consisting of a compound represented by the following formula (1), a compound represented by the following formula (2) and a compound represented by the following formula (3). In the formula (1), n represents an integer of 3 to 10 and R2 represents a —CH2—CH2— group, a —CH2—CH(CH3)— group or a —CH2—CH2—CH2— group. In the formula (2), R3 represents a —(CH2)p— group or a phenylene group and p represents an integer of 4 to 8. In the formula (3), R4 represents a substituted phenylene group. In the formulas (1) to (3), R1-1, R1-2 and R1-3 each represent an alkyl group having a branched structure having 5 or more carbon atoms and R1-1, R1-2 and R1-3 may be the same or different.
    Type: Grant
    Filed: December 8, 2009
    Date of Patent: November 10, 2015
    Assignees: SEKISUI CHEMICAL CO., LTD., NIPPON KAYAKU KABUSHIKI KAISHA, POLATECHNO CO., LTD
    Inventors: Juichi Fukatani, Izumi Omoto, Seiko Ichikawa, Kouichi Tanaka, Mayu Kameda
  • Patent number: 9180648
    Abstract: A laminate for a laminated glass, comprising an interlayer film for a laminated glass laminated with a retardation element interposed between an adhesive layer A and an adhesive layer B, wherein the retardation element contains a liquid-crystal compound and at least one compound selected from the group consisting of a compound represented by the following formula (1), a compound represented by the following formula (2), and a compound represented by the following formula (3). In formula (1), n represents an integer from 3 to 10 and R2 represents a —CH2—CH2— group, a —CH2—CH(CH3)— group, or a —CH2—CH2—CH2— group. In formula (2), R3 represents a —(CH2)p— group or a phenylene group and p represents an integer from 4 to 8. In formula (3), R4 represents a substituted phenylene group. R1-1, R1-2, and R1-3 in formulas (1) to (3) are the same or different, each representing an alkyl group that has a branched structure and that contains at least 5 carbon atoms.
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: November 10, 2015
    Assignees: SEKISUI CHEMICAL CO., LTD., NIPPON KAYAKU KABUSHIKI KAISHA, POLATECHNO CO., LTD.
    Inventors: Juichi Fukatani, Izumi Omoto, Seiko Ichikawa, Kouichi Tanaka, Mayu Kameda
  • Patent number: 8557394
    Abstract: A laminate for a laminated glass which is used as a head-up display (HUD) and is not deteriorated even if exposed to light, and with which a laminated glass having excellent impact resistance can be prepared, wherein an interlayer film for a laminated glass and a retardation element sandwiched between adhesive layers are laminated, the interlayer film for a laminated glass contains a thermoplastic resin and an ultraviolet absorber, the interlayer film for a laminated glass contains, as the ultraviolet absorber, a benzotriazole compound or a benzophenone compound, and at least one compound selected from the group consisting of a malonic ester compound, an oxanilide compound and a triazine compound.
    Type: Grant
    Filed: January 2, 2013
    Date of Patent: October 15, 2013
    Assignees: Sekisui Chemical Co., Ltd., Nippon Kayaku Kabushiki Kaisha, Polatechno Co., Ltd.
    Inventors: Juichi Fukatani, Izumi Omoto, Seiko Ichikawa, Kouichi Tanaka, Mayu Kameda
  • Patent number: 8367216
    Abstract: A laminate for a laminated glass which is used as a head-up displays (HUD) and is not deteriorated even if exposed to light, and with which a laminated glass having excellent impact resistance can be prepared, wherein an interlayer film for a laminated glass and a retardation element sandwiched between adhesive layers are laminated, the interlayer film for a laminated glass contains a thermoplastic resin and an ultraviolet absorber, the interlayer film for a laminated glass contains, as the ultraviolet absorber, a benzotriazole compound or a benzophenone compound, and at least one compound selected from the group consisting of a malonic ester compound, an oxanilide compound and a triazine compound.
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: February 5, 2013
    Assignees: Sekisui Chemical Co., Ltd., Nippon Kayaku Kabushiki Kaisha, Polatechno Co., Ltd.
    Inventors: Juichi Fukatani, Izumi Omoto, Seiko Ichikawa, Kouichi Tanaka, Mayu Kameda
  • Publication number: 20120021230
    Abstract: The present invention aims to provide a laminate for a laminated glass which is used as a head-up display (HUD) and is not deteriorated even if exposed to light, and with which a laminated glass having excellent impact resistance can be prepared. The present invention pertains to a laminate for a laminated glass, wherein an interlayer film for a laminated glass and a retardation element sandwiched between adhesive layers are laminated, the interlayer film for a laminated glass contains a thermoplastic resin and an ultraviolet absorber, the interlayer film for a laminated glass contains, as the ultraviolet absorber, a benzotriazole compound or a benzophenone compound, and at least one compound selected from the group consisting of a malonic ester compound, an oxanilide compound and a triazine compound, the sum of the contents of the malonic ester compound, the oxanilide compound and the triazine compound is 0.
    Type: Application
    Filed: December 22, 2009
    Publication date: January 26, 2012
    Inventors: Juichi Fukatani, Izumi Omoto, Seiko Ichikawa, Kouichi Tanaka, Mayu Kameda
  • Publication number: 20110293856
    Abstract: The present invention aims at providing a retardation element which has excellent heat resistance, is small in the changes in the retardation value in an atmosphere of high temperatures, and is capable of maintaining stable optical performance. The present invention pertains to a retardation element containing a liquid crystalline compound, and at least one compound selected from the group consisting of a compound represented by the following formula (1), a compound represented by the following formula (2) and a compound represented by the following formula (3). In the formula (1), n represents an integer of 3 to 10 and R2 represents a —CH2—CH2— group, a —CH2—CH(CH3)— group or a —CH2—CH2—CH2— group. In the formula (2), R3 represents a —(CH2)p— group or a phenylene group and p represents an integer of 4 to 8. In the formula (3), R4 represents a substituted phenylene group.
    Type: Application
    Filed: December 8, 2009
    Publication date: December 1, 2011
    Inventors: Juichi Fukatani, Izumi Omoto, Seiko Ichikawa, Kouichi Tanaka, Mayu Kameda
  • Publication number: 20110293857
    Abstract: An object of the present invention is to provide a laminate for a laminated glass that exhibits an excellent heat resistance, exhibits little variation in its retardation value in high-temperature atmospheres, and can maintain stable optical properties. The present invention is a laminate for a laminated glass, comprising an interlayer film for a laminated glass laminated with a retardation element interposed between an adhesive layer A and an adhesive layer B, wherein the retardation element contains a liquid-crystal compound and at least one compound selected from the group consisting of a compound represented by the following formula (1), a compound represented by the following formula (2), and a compound represented by the following formula (3). In formula (1), n represents an integer from 3 to 10 and R2 represents a —CH2—CH2— group, a —CH2—CH(CH3)— group, or a —CH2—CH2—CH2— group. In formula (2), R3 represents a —(CH2)p— group or a phenylene group and p represents an integer from 4 to 8.
    Type: Application
    Filed: December 22, 2009
    Publication date: December 1, 2011
    Inventors: Juichi Fukatani, Izumi Omoto, Seiko Ichikawa, Kouichi Tanaka, Mayu Kameda