Patents by Inventor Naofumi Kumabe

Naofumi Kumabe 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).

  • Phenyl-containing functional polysiloxanes and polycarbonate-polysiloxane copolymers made therefrom
    Patent number: 9376534
    Abstract: The invention is directed to phenyl-containing functional polysiloxanes and polycarbonate-polysiloxane copolymer compositions made therefrom having improved optical clarity and better low temperature impact resistance.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: June 28, 2016
    Assignee: Momentive Performance Materials Japan LLC
    Inventors: Koji Kanuma, Yataka Horie, Anuj Mittal, Laxmi Samantara, Indumathi Ramakrishnan, Naofumi Kumabe, Narayana Padmanabha Iyer, Samim Alam
  • PHENYL-CONTAINING FUNCTIONAL POLYSILOXANES AND POLYCARBONATE-POLYSILOXANE COPOLYMERS MADE THEREFROM
    Publication number: 20150141586
    Abstract: The invention is directed to phenyl-containing functional polysiloxanes and polycarbonate-polysiloxane copolymer compositions made therefrom having improved optical clarity and better low temperature impact resistance.
    Type: Application
    Filed: May 30, 2014
    Publication date: May 21, 2015
    Applicant: MOMENTIVE PERFORMANCE MATERIALS JAPAN LLC
    Inventors: Koji Kanuma, Yataka Horie, Anuj Mittal, Laxmi Samantara, lndumathi Ramakrishnan, Naofumi Kumabe, Narayana Padmanabha Iyer, Samim Alam
  • Method for enhancing the toughness of cycloaliphatic epoxide-based coatings
    Patent number: 6201070
    Abstract: Methods are disclosed for enhancing the toughness, e.g., resistance to cracking upon flexation, of coatings made from cycloaliphatic epoxide derivatives wherein the cycloaliphatic epoxide derivative is a cycloaliphatic epoxide ester of a hydroxy-functional compound containing at least one branched, 1,2-alkylene oxide unit. Processes for making the cycloaliphatic epoxide derivatives and coating formulations comprising the cycloaliphatic epoxide derivatives are also disclosed.
    Type: Grant
    Filed: November 20, 1996
    Date of Patent: March 13, 2001
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Naofumi Kumabe, Thomas Andrew Upshaw, Robert Francis Eaton, Bharat Kanaiyalal Patel, John Kellis Braddock