Patents by Inventor Katsufumi Kujira

Katsufumi Kujira 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).

  • Patent number: 8430990
    Abstract: The present invention relates to an inexpensive adhesive resin composition which is applicable even to a base material having a poor bonding property. The adhesive resin composition comprises (A) a polymer having no radical-polymerizable double bond and (B) a radical generating agent in which the radical generating agent (B) is present in an amount of 0.1 to 10 parts by weight on the basis of 100 parts by weight of the polymer (A). In the preferred embodiment of the present invention, the adhesive resin composition further comprises (C) a radical-polymerizable monomer wherein the monomer (C) is present in an amount of 0.1 to 10 parts by weight on the basis of 100 parts by weight of the polymer (A). The radical-polymerizable monomer (C) is a glycidyl group-containing monomer, and the glycidyl group-containing monomer is 4-hydroxybutyl acrylate glycidyl ether.
    Type: Grant
    Filed: October 6, 2011
    Date of Patent: April 30, 2013
    Assignee: Nippon Kasei Chemical Company Limited
    Inventors: Satoshi Yamauchi, Yoshiko Kaneko, Katsufumi Kujira, Shouji Sakamoto
  • Publication number: 20120027949
    Abstract: The present invention relates to an inexpensive adhesive resin composition which is applicable even to a base material having a poor bonding property. The adhesive resin composition comprises (A) a polymer having no radical-polymerizable double bond and (B) a radical generating agent in which the radical generating agent (B) is present in an amount of 0.1 to 10 parts by weight on the basis of 100 parts by weight of the polymer (A). In the preferred embodiment of the present invention, the adhesive resin composition further comprises (C) a radical-polymerizable monomer wherein the monomer (C) is present in an amount of 0.1 to 10 parts by weight on the basis of 100 parts by weight of the polymer (A). The radical-polymerizable monomer (C) is a glycidyl group-containing monomer, and the glycidyl group-containing monomer is 4-hydroxybutyl acrylate glycidyl ether.
    Type: Application
    Filed: October 6, 2011
    Publication date: February 2, 2012
    Applicant: NIPPON KASEI CHEMICAL COMPANY LIMITED
    Inventors: Satoshi YAMAUCHI, Yoshiko Kaneko, Katsufumi Kujira, Shouji Sakamoto
  • Patent number: 8062469
    Abstract: The present invention relates to an inexpensive adhesive resin composition which is applicable even to a base material having a poor bonding property. The adhesive resin composition comprises (A) a polymer having no radical-polymerizable double bond and (B) a radical generating agent in which the radical generating agent (B) is present in an amount of 0.1 to 10 parts by weight on the basis of 100 parts by weight of the polymer (A). In the preferred embodiment of the present invention, the adhesive resin composition further comprises (C) a radical-polymerizable monomer wherein the monomer (C) is present in an amount of 0.1 to 10 parts by weight on the basis of 100 parts by weight of the polymer (A). The radical-polymerizable monomer (C) is a glycidyl group-containing monomer, and the glycidyl group-containing monomer is 4-hydroxybutyl acrylate glycidyl ether.
    Type: Grant
    Filed: February 5, 2008
    Date of Patent: November 22, 2011
    Assignee: Nippon Kasei Chemical Company Limited
    Inventors: Satoshi Yamauchi, Yoshiko Kaneko, Katsufumi Kujira, Shouji Sakamoto
  • Publication number: 20100096082
    Abstract: The present invention relates to an inexpensive adhesive resin composition which is applicable even to a base material having a poor bonding property. The adhesive resin composition comprises (A) a polymer having no radical-polymerizable double bond and (B) a radical generating agent in which the radical generating agent (B) is present in an amount of 0.1 to 10 parts by weight on the basis of 100 parts by weight of the polymer (A). In the preferred embodiment of the present invention, the adhesive resin composition further comprises (C) a radical-polymerizable monomer wherein the monomer (C) is present in an amount of 0.1 to 10 parts by weight on the basis of 100 parts by weight of the polymer (A). The radical-polymerizable monomer (C) is a glycidyl group-containing monomer, and the glycidyl group-containing monomer is 4-hydroxybutyl acrylate glycidyl ether.
    Type: Application
    Filed: February 5, 2008
    Publication date: April 22, 2010
    Applicant: NIPPON KASEI CHEMICAL COMPANY LIMITED
    Inventors: Satoshi Yamauchi, Yoshiko Kaneko, Katsufumi Kujira, Shouji Sakamoto
  • Patent number: 5726340
    Abstract: The present invention relates to a method of producing an aromatic carbonate by reacting an aromatic hydroxy compound, carbon monoxide, and oxygen, wherein the reaction is carried out in the presence of a catalyst comprising:(A) at least one selected from palladium and palladium compounds;(B) at least one lead compound;(C) at least one cobalt compound; and,(D) at least one halide.According to this method an aromatic carbonate which produces only a small amount of impurities and has excellent selectivity can be produced.
    Type: Grant
    Filed: March 4, 1997
    Date of Patent: March 10, 1998
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Masatoshi Takagi, Katsufumi Kujira, Takahiro Yoneyama, Yuji Ohgomori
  • Patent number: 5442103
    Abstract: A process for producing 2,6-naphthalenedicarboxylic acid by oxidizing 2,6-dimethylnaphthalene by molecular oxygen in the presence of a catalyst including cobalt, manganese and bromine. The oxidation reaction is performed by using a 2,6-dialkylnaphthalene mixture of 2,6-dimethynaphthalene and a small amount of 2,6-diisopropylnaphthalene as a raw material. Thus, the desired 2,6-naphthalenedicarboxylic acid can be produced at a high yield.
    Type: Grant
    Filed: November 16, 1993
    Date of Patent: August 15, 1995
    Assignee: Mitsubishi Petrochemical Co., Ltd.
    Inventors: Hiroshi Iwane, Takahiro Sugawara, Katsufumi Kujira, Naoki Suzuki, Tomoya Sakata