Patents by Inventor Masanobu Hidai

Masanobu Hidai 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).

  • Catalyst component and catalyst for addition polymerization, and process for producing addition polymer
    Patent number: 6723807
    Abstract: A catalyst obtained by contacting a transition metal compound (A) of the general formula [1]: [LpXoCpjM(N2)nM′XmLl]X′k  [1], wherein M and M′ independently represent a transition metal of Group 3 to 10; X independently represents a hydrogen atom, halogen atom, a specific hydrocarbon group or the like; Cp is a cyclopentadienyl group; L represents a group which bonds to M or M′ by lone pair of electrons or a &pgr; electron; X′ represents a counter anion; k, l, m, o and p each independently represent an integer of 0 to 5; j represents an integer of 0 to 2; n+o+p+j≦6; n represents an integer of 1 to 3; and n+l+m≦6, with an organoaluminum, and an aluminoxane and/or boron compound, or with an aluminoxane and/or boron compound, and a process for producing an addition polymerization with the catalyst.
    Type: Grant
    Filed: December 20, 2002
    Date of Patent: April 20, 2004
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Masanobu Hidai, Masaaki Nabika
  • Catalyst component and catalyst for addition polymerization, and process for producing addition polymer
    Publication number: 20030158355
    Abstract: A catalyst obtained by contacting a transition metal compound (A) of the general formula [1]:
    Type: Application
    Filed: December 20, 2002
    Publication date: August 21, 2003
    Inventors: Masanobu Hidai, Masaaki Nabika
  • Catalyst component and catalyst for addition polymerization, and process for producing addition polymer
    Publication number: 20020091209
    Abstract: A catalyst component for addition polymerization composed of a transition metal compound (A) of the following general formula [1]:
    Type: Application
    Filed: November 8, 2001
    Publication date: July 11, 2002
    Inventors: Masanobu Hidai, Masaaki Nabika