Patents by Inventor Osamu Fujisawa

Osamu Fujisawa 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: 11974529
    Abstract: An object of the present invention is to propose cultivation equipment that can curb complication and upsizing of the equipment even when the number of cultivation stages is increased. Cultivation equipment includes a storage shelf (1) and a plurality of cultivation tanks (3) that are stored in the storage shelf (1) and hold plants (P1) and a cultivation liquid (L1). The cultivation equipment further includes a discharge device (50) and a supply device (51). The discharge device (50) is movable among a plurality of cultivation tanks (3), and discharges the cultivation liquid (L1) from each of the plurality of cultivation tanks (3). The supply device (51) is movable among the plurality of cultivation tanks (3), and supplies the cultivation liquid (L1) to each of the plurality of cultivation tanks (3).
    Type: Grant
    Filed: April 28, 2021
    Date of Patent: May 7, 2024
    Assignee: Fujisawa Kenki Co., Ltd.
    Inventors: Hisafumi Fujisawa, Eiji Higuchi, Osamu Hirata
  • Patent number: 4618752
    Abstract: A gas-insulated interrupter comprising an interrupting unit, a hermetically-sealable housing enclosing the interrupting unit therein, and a pair of rigid terminal conductors connected to the interrupting unit at spaced positions is disclosed. The housing has formed therein a single opening sufficiently large to allow the interrupting unit and the terminal conductors as assembled to pass therethrough. The large single opening in the housing is closed by a single closure member rigidly supporting the terminal conductors and hermetically closing the opening in the housing while mechanically rigidly supporting the terminal conductors and the interrupting unit.
    Type: Grant
    Filed: January 23, 1985
    Date of Patent: October 21, 1986
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Yukio Ozaki, Osamu Fujisawa, Ryukichi Sakai, Hiroshi Hasegawa
  • Patent number: 3983289
    Abstract: An electrically insulating prepreg which comprises a resin composition of an alicyclic epoxy compound prepared by the expoxidation of an alkadiene alcohol ester of an alicyclic polybasic carboxylic acid, a latent curing agent, and a solid substrate, wherein said resin composition, once it has been applied to the substrate, is in the B-stage cured state and is thereby acetone soluble, thermoplastic and nontacky.
    Type: Grant
    Filed: April 9, 1974
    Date of Patent: September 28, 1976
    Assignees: Mitsubishi Chemical Industries Ltd., Mitsubishi Denki Kabushiki Kaisha
    Inventors: Syunichiro Nishizaki, Hiroshi Teratani, Osamu Fujisawa, Jiro Fukushima, Makoto Tokizawa, Nobukatsu Wakabayashi, Takashi Saito