Patents by Inventor Tamio Serita

Tamio Serita 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).

  • Process for production of inorganic filler-containing polyolefin resin composition
    Patent number: 6953815
    Abstract: The present invention provides a highly economical process for production of an inorganic filler-containing polyolefin resin composition, and a production apparatus to be used for the process, whose process is characterized by carrying out a continuous series of steps from an olefin polymerization step up to a kneading/pelletizing step wherein the polyolefin resin obtained by the polymerization step is kneaded and pelletized with an inorganic filler and various additives.
    Type: Grant
    Filed: April 4, 2002
    Date of Patent: October 11, 2005
    Inventors: Takehiko Enomoto, Tamio Serita
  • Process and apparatus for production of inorganic filler-containing polyolefin resin composition
    Publication number: 20030045622
    Abstract: The present invention provides a highly economical process for production of an inorganic filler-containing polyolefin resin composition, and a production apparatus to be used for the process, whose process is characterized by carrying out a continuous series of steps from an olefin polymerization step up to a kneading/pelletizing step wherein the polyolefin resin obtained by the polymerization step is kneaded and pelletized with an inorganic filler and various additives.
    Type: Application
    Filed: April 4, 2002
    Publication date: March 6, 2003
    Applicant: Tamio Serita
    Inventors: Takehiko Enomoto, Tamio Serita
  • Polysilazane and method for synthesis thereof
    Patent number: 4950381
    Abstract: There is provided a new polysilazane product from a specific precursor. Desired molecular weight of the polysilazane can be obtained by selecting the proper molar ratio of R.sub.1 SiHX.sub.2 and R.sub.2 R.sub.3 SiX.sub.2 as raw materials. The polysilazane is stable during storage without gelation. The polymerization of the precursor can be carried out without gelation even at a high temperature and hence can be completed in a short time. The polysilazane can be made into ceramic fibers by spinning from a solution and subsequent firing.
    Type: Grant
    Filed: June 10, 1988
    Date of Patent: August 21, 1990
    Assignee: Chisso Corporation
    Inventors: Hiroyuki Takeuchi, Kaneo Noake, Tamio Serita
  • New polysilazane and process for production of the same
    Patent number: 4937304
    Abstract: There is provided a new polysilazane product from a specific precursor. Desired molecular weight of the polysilazane can be obtained by selecting proper amount of a silazane or silylamine compound ##STR1## as an additive. The polysilazane is stable during storage without gelation. The polymerization of the precursor can be carried out without gelation even at a high temperature and hence can be completed in a short time. The polysilazane can be made into ceramics fiber by spinning from a solution and subsequent firing.
    Type: Grant
    Filed: June 10, 1988
    Date of Patent: June 26, 1990
    Assignee: Chisso Corporation
    Inventors: Koichi Ayama, Kaneo Noake, Tamio Serita
  • Method for producing shaped articles of ceramics
    Patent number: 4873039
    Abstract: Forming a shaped article of polysilazane, contacting this shaped article with dry ammonia at a temperature of 20.degree.-200.degree. C. to thereby effect infusibilization, and finally subjecting the ammonia-treated product to further heat treatment at a higher temperature in a nitrogen atmosphere to thereby produce a shaped ceramic article.
    Type: Grant
    Filed: February 16, 1988
    Date of Patent: October 10, 1989
    Assignee: Chisso Corporation
    Inventors: Tamio Serita, Hiroyuki Takeuchi
  • Method for producing polysilazane
    Patent number: 4725660
    Abstract: A method which comprises reacting an aminosilane compound with an excessive amount of ammonia or primary amine under conditions which produce a polysilazane.
    Type: Grant
    Filed: May 29, 1986
    Date of Patent: February 16, 1988
    Assignee: Chisso Corporation
    Inventors: Tamio Serita, Hiroyuki Takeuchi