Patents Assigned to Masahiko Tsuchiya
  • Apparatus for producing sample ions
    Patent number: 4546253
    Abstract: Apparatus for producing sample ions comprising means of producing metastable species by corona discharges in the carrier gas, a needle-shaped emitter whose pointed end is inserted into the stream of carrier gas which transports said metastable species, means for applying a high potential to said needle emitter, wherein sample is arranged adjacent to or deposited on the pointed end of said emitter. Its value is further enhanced when it is combined with a mass spectrometer.
    Type: Grant
    Filed: July 28, 1983
    Date of Patent: October 8, 1985
    Assignee: Masahiko Tsuchiya
    Inventors: Masahiko Tsuchiya, Hirofumi Kuwabara