Patents by Inventor Etsuya Kawata

Etsuya Kawata 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).

  • Amino group-containing heterocyclic derivatives and sensitizing dyes for photoelectric conversion containing the heterocyclic derivatives
    Patent number: 8044219
    Abstract: It is intended to provide novel amino group-containing heterocyclic derivatives, which have a broad absorption zone in the visible region and are suitable for sensitizing dyes for photoelectric conversion having a high photoelectric conversion efficiency, and photoelectric conversion materials, photoelectric conversion electrodes and photoelectric conversion cells using the same.
    Type: Grant
    Filed: April 28, 2006
    Date of Patent: October 25, 2011
    Assignee: AGC Seimi Chemical., Ltd.
    Inventors: Katsumi Iida, Etsuya Kawata, Shoji Watanabe, Kana Kobayashi
  • Process for producing lithium-containing composite oxide for positive electrode for lithium secondary battery
    Patent number: 7749482
    Abstract: To provide a process for producing a lithium-containing composite oxide for a positive electrode for a lithium secondary battery, which is excellent in the volume capacity density, safety, charge and discharge cycle durability and low temperature characteristics. A process for producing a lithium-containing composite oxide represented by the formula LipNxMmOzFa (wherein N is at least one element selected from the group consisting of Co, Mn and Ni, M is at least one element selected from the group consisting of Al, alkaline earth metal elements and transition metal elements other than N, 0.9?p?1.2, 0.97?x<1.00, 0<m?0.03, 1.9?z?2.2, x+m=1 and 0?a?0.
    Type: Grant
    Filed: July 9, 2007
    Date of Patent: July 6, 2010
    Assignee: AGC Seimi Chemical Co., Ltd.
    Inventors: Kazushige Horichi, Etsuya Kawata
  • NOVEL AMINO GROUP-CONTAINING HETEROCYCLIC DERIVATIVES AND SENSITIZING DYES FOR PHOTOELECTRIC CONVERSION CONTAINING THE HETEROCYCLIC DERIVATIVES
    Publication number: 20090025781
    Abstract: It is intended to provide novel amino group-containing heterocyclic derivatives, which have a broad absorption zone in the visible region and are suitable for sensitizing dyes for photoelectric conversion having a high photoelectric conversion efficiency, and photoelectric conversion materials, photoelectric conversion electrodes and photoelectric conversion cells using the same.
    Type: Application
    Filed: April 28, 2006
    Publication date: January 29, 2009
    Applicant: AGC Seimi Chemical Co., Ltd.
    Inventors: Katsumi Iida, Etsuya Kawata, Shoji Watanabe, Kana Kobayashi
  • PROCESS FOR PRODUCING LITHIUM-CONTAINING COMPOSITE OXIDE FOR POSITIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY
    Publication number: 20070254214
    Abstract: To provide a process for producing a lithium-containing composite oxide for a positive electrode for a lithium secondary battery, which is excellent in the volume capacity density, safety, charge and discharge cycle durability and low temperature characteristics. A process for producing a lithium-containing composite oxide represented by the formula LipNxMmOzFa (wherein N is at least one element selected from the group consisting of Co, Mn and Ni, M is at least one element selected from the group consisting of Al, alkaline earth metal elements and transition metal elements other than N, 0.9?p?1.2, 0.97?x<1.00, 0<m?0.03, 1.9?z?2.2, x+m=1 and 0?a?0.
    Type: Application
    Filed: July 9, 2007
    Publication date: November 1, 2007
    Applicant: AGC Seimi Chemical Co., Ltd.
    Inventors: Kazushige Horichi, Etsuya Kawata