Patents by Inventor Masakuni Tokai

Masakuni Tokai 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).

  • Electron-beam excited plasma generator with side orifices in the discharge chamber
    Patent number: 5942854
    Abstract: The present invention provides an electron-beam excited plasma generator which can effectively form samples of larger areas.
    Type: Grant
    Filed: June 4, 1998
    Date of Patent: August 24, 1999
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Makoto Ryoji, Masakuni Tokai, Yukitaka Mori, Takeshi Hasegawa, Masahito Ban
  • Electron beam excited ion irradiation apparatus
    Patent number: 5326981
    Abstract: In an electron beam excited ion irradiation apparatus which irradiates ions to a material, an electrical discharge changes an inert gas into a plasma. Electrons are drawn from this plasma and are made into electron beams. The electron beams are passed through an active gas to create ion. When the ion is irradiated to a material, electron components of the electron beams, which are irradiated vertically to a surface of the material are changed their irradiation direction. Control of the range of electron beam irradiation is performed by a magnetic filed formed so as to surround the ion beams.
    Type: Grant
    Filed: September 25, 1992
    Date of Patent: July 5, 1994
    Assignees: Kawasaki Jukogyo Kabushiki Kaisha, Riken Institute of Physical and Chemical Research
    Inventors: Tamio Hara, Manabu Hamagaki, Katsunobu Aoyagi, Takeshi Yamada, Makoto Ryoji, Masakuni Tokai, Yosuke Kajiyama
  • Solar-heating system
    Patent number: 4467958
    Abstract: A solar heating system including a chemical heat pump for storing thermal energy by converting same into energy in the form of a difference in the concentration of an aqueous multiple-component chemical solution which actuates the chemical heat pump, and a solar collector of a low temperature solar collection type operative to collect excess thermal energy of the sun not used for heating and cooling purposes during the time intermediate the solar irradiance abundant season and the solar irradiance scarce season, or spring and autumn, and store same in the chemical heat pump as energy in the form of a difference in the concentration of an aqueous multiple-component chemical solution.
    Type: Grant
    Filed: September 23, 1982
    Date of Patent: August 28, 1984
    Assignee: Ministry of International Trade and Industry of Japan
    Inventors: Masao Yoshiwa, Yoshiro Hujioka, Masakuni Tokai, Mikio Muro