Patents by Inventor Masao Okuda

Masao Okuda 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).

  • METHOD FOR STABILIZING CARBODIIMIDE DERIVATIVE AND STABILIZED COMPOSITION THEREOF
    Publication number: 20100016634
    Abstract: Disclosed is a method for stabilizing a carbodiimide derivative (1) which is a condensing agent useful for production of general synthetic chemical products. Also disclosed is a stabilized composition of the carbodiimide derivative. The method is characterized in that the carbodiimide derivative (1) is handled in an atmosphere wherein the concentration of molecular oxygen in the gas phase within a container is set at not more than 3% by volume and/or in the co-presence of at least one compound selected from the group consisting of antioxidants, N-oxyl compounds, sulfur compounds, amines and Lewis acids.
    Type: Application
    Filed: August 30, 2007
    Publication date: January 21, 2010
    Applicants: Kaneka Corporation, Osaka Synthetic Chemical Laboratories, Inc.
    Inventors: Kunihiko Seno, Masao Okuda, Hiroaki Kawasaki, Tadashi Moroshima, Yasuyoshi Ueda
  • Extrusion foamed article and process for producing the same
    Patent number: 4196267
    Abstract: An extrusion foamed article with a large cross-sectional area is made by extrusion foaming a mixture of an ionomer resin and a styrenic resin utilizing a volatile blowing agent. The process permits economic production of a novel thick, foamed article having well balanced properties.
    Type: Grant
    Filed: February 27, 1978
    Date of Patent: April 1, 1980
    Assignee: Asahi-Dow Limited
    Inventors: Seizaburo Watanabe, Yuji Seo, Eiji Hattori, Masao Okuda, Hiroshi Watanabe