Patents by Inventor Takaomi Satokawa

Takaomi Satokawa 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).

  • Patterned film of thiocarbonyl fluoride polymer
    Patent number: 4656108
    Abstract: A resist film made of thiocarbonyl fluoride polymers which has excellent sensitivity, resolving power and adhesion property to a substrate and can provide a fine resist pattern. The resist pattern is produced by forming the resist film on a substrate, irradiating an ionizing radiation and developing with an organic solvent.
    Type: Grant
    Filed: June 20, 1985
    Date of Patent: April 7, 1987
    Assignee: Daikin Kogyo Co., Ltd.
    Inventors: Takaomi Satokawa, Tsuneo Fujii, Takayuki Deguchi
  • Telomerization of tetrafluoroethylene
    Patent number: 4346250
    Abstract: Fluoroalkanols of the formula:H(CF.sub.2 CF.sub.2).sub.n CH.sub.2 OH (I)are prepared by telomerization of tetrafluoroethylene with methanol in a batch system. The reaction is carried out while introducing tetrafluoroethylene continuously into the reaction system. The production of fluoroalkanols of the formula (I) wherein n is an integer of 5 or more is suppressed and the production of fluoroalkanols of the formula (I) wherein n is an integer of 4 or less is enhanced.
    Type: Grant
    Filed: November 3, 1980
    Date of Patent: August 24, 1982
    Assignee: Daikin Kogyo Co., Ltd.
    Inventors: Takaomi Satokawa, Tuneo Fujii, Akira Ohmori, Yorio Fujita