Patents by Inventor Shigeo MAEZAWA

Shigeo MAEZAWA 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).

  • Wind power generation system
    Patent number: 10030634
    Abstract: A wind power generation system according to an embodiment includes a blade; a lightning protection device; an electric device; a voltage application mechanism; a first lightning arrester element; and a second lightning arrester element. The lightning protection device includes a receptor provided at the blade and guides a current of lightning to the ground from the receptor via a lightning conductor. The electric device is installed at the blade and includes a first electric conductor and a second electric conductor provided apart from each other. The voltage application mechanism applies a voltage between the first electric conductor and the second electric conductor. The first lightning arrester element has one end thereof electrically connected to the first electric conductor and has the other end thereof grounded. The second lightning arrester element has one end thereof electrically connected to the second electric conductor and has the other end thereof grounded.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: July 24, 2018
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Motofumi Tanaka, Shinya Nakayama, Haruhisa Wada, Naoto Shinohara, Shigeo Maezawa, Toshiki Osako, Satoshi Hanai
  • WIND POWER GENERATION SYSTEM
    Publication number: 20160290321
    Abstract: A wind power generation system according to an embodiment includes a blade; a lightning protection device; an electric device; a voltage application mechanism; a first lightning arrester element; and a second lightning arrester element. The lightning protection device includes a receptor provided at the blade and guides a current of lightning to the ground from the receptor via a lightning conductor. The electric device is installed at the blade and includes a first electric conductor and a second electric conductor provided apart from each other. The voltage application mechanism applies a voltage between the first electric conductor and the second electric conductor. The first lightning arrester element has one end thereof electrically connected to the first electric conductor and has the other end thereof grounded. The second lightning arrester element has one end thereof electrically connected to the second electric conductor and has the other end thereof grounded.
    Type: Application
    Filed: March 21, 2016
    Publication date: October 6, 2016
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Motofumi TANAKA, Shinya NAKAYAMA, Haruhisa WADA, Naoto SHINOHARA, Shigeo MAEZAWA, Toshiki OSAKO, Satoshi HANAI