Patents by Inventor Syotaro Oka

Syotaro Oka 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).

  • Thermal detectors and process for manufacturing the same
    Patent number: 4867850
    Abstract: Thermal detectors comprising at least one pair of membrane electrodes formed on a base material (such a pyroelectric, semiconductive and insulating materials), wherein at least one member of said pair of electrodes is covered with a black membrane of precious metal formed by the electrolytic process, are highly sensitive because of the excellent heat absorption efficiency, with little change in sensitivity over a wide wavelength range.
    Type: Grant
    Filed: December 15, 1987
    Date of Patent: September 19, 1989
    Assignee: Shimadzu Corporation
    Inventors: Syotaro Oka, Junichi Kita, Hiroki Kuyama, Motosada Kiri
  • Radiation image detecting apparatus with IC modules stacked stepwise
    Patent number: 4755681
    Abstract: A radiation image detecting apparatus having its radiation image receiving plane divided into picture elements made up of a plurality of two-dimensionally arrayed unit radiation detectors and having its picture element image signal processing electronic circuits thereon in a plurality of IC packages.
    Type: Grant
    Filed: September 29, 1986
    Date of Patent: July 5, 1988
    Assignee: Shimadzu Corporation
    Inventors: Syotaro Oka, Motosada Kiri, Takeshi Nakanishi, Kenji Shibata
  • Moisture sensor
    Patent number: 4696796
    Abstract: A moisture sensor having the moisture sensitive film comprising an inner layer in the form of a plasma-polymerized high polymer layer of a hydrophobic organic compound and a surface layer in the form of a plasma-polymerized high polymer layer having incorporated therein a hydrophilic groups of an ammonium salt type, and a process for producing same.
    Type: Grant
    Filed: September 4, 1985
    Date of Patent: September 29, 1987
    Assignee: Shimadzu Corporation
    Inventors: Syotaro Oka, Shu Tahara, Junya Kobayashi
  • Electrode for measurement of ion activity
    Patent number: 4597848
    Abstract: There are disclosed an ion selective electrode which adopted a solid polymer membrane with specific ion exchangers, and an apparatus and measuring method with the above-mentioned electrode. The electrode is suitable for the quantitative chemical analysis of a specific ion activity in electrolytic solutions with various foreign ions, for example an activity of chloride ion in blood, urine or any other biological solutions.
    Type: Grant
    Filed: November 28, 1984
    Date of Patent: July 1, 1986
    Assignee: Shimadzu Corporation
    Inventors: Syotaro Oka, Shu Tahara, Yaichiro Shibazaki