Patents by Inventor Masahiro Ota

Masahiro Ota 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).

  • Method of detecting shock and shock sensor
    Patent number: 5510666
    Abstract: An electric field equal to at least a coercive electric field is applied to a field-excited phase transition material thereby to bring about a phase transition from an antiferroelectric phase to a ferroelectric phase for thereby causing the field-excited phase transition material to produce a distortion. Then, the electric field applied to the field-excited phase transition material is eliminated while the distortion remains in the field-excited phase transition material. Thereafter, a shock is applied to the field-excited phase transition material to forcibly remove residual distortion from the field-excited phase transition material for thereby causing the field-excited phase transition material to produce an electric signal representative of the shock.
    Type: Grant
    Filed: September 16, 1994
    Date of Patent: April 23, 1996
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Naoya Watanabe, Masahiro Ota
  • Resin coated permanent magnet
    Patent number: 4865915
    Abstract: A waterproof resin coated permanent magnet is provided. The resin coating is either a waterproof fluoroplastic resin material or a mixture of fluoroplastic resin material and at least one organic resin such as epoxy resin, polyester resin, acrylic resin, phenol resin and mixtures thereof. The magnet has superior corrosion and weathering resistance.
    Type: Grant
    Filed: March 17, 1988
    Date of Patent: September 12, 1989
    Assignee: Seiko Epson Corporation
    Inventors: Itaru Okonogi, Yukihiko Shiohara, Mitsuru Sakurai, Masahiro Ota