Patents by Inventor Yuuzou Fukawa

Yuuzou Fukawa 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).

  • Ester copolymer resin, alloy thereof and packaging material using the same
    Patent number: 5804267
    Abstract: 1. An ester copolymer resin having a general formula ?I!.HO.paren open-st.COArCOORO.paren close-st..sub.n H ?I!wherein Ar represents 2,6-naphthalene group or phenylene group, R represents ethylene group or 1,4-cyclohexylene group, and n is a number of 100 to 1000 and a polymer alloy having a solubility parameter of 10.8 to 11.9 consisting essentialy of the ester copolymer and a polycarbonate resin are provided. The ester resin and the alloy are transparent and has a heat resistance and a hot water resistance (resistance to whitening) resisting sterilization of food, a good heat sealebility to aluminum closure, and recycling ability with PET resin.
    Type: Grant
    Filed: October 6, 1997
    Date of Patent: September 8, 1998
    Assignees: NKK Corporation, Kyodo Printing Co., Ltd.
    Inventors: Yasuhiro Harada, Shinichiro Mori, Kayo Hasegawa, Junichi Kitagawa, Yoichiro Inoue, Eiichi Kai, Shinichi Sekine, Yuuzou Fukawa, Takashi Shirane, Kazuhiro Hamauji
  • Ester copolymer resin, alloy thereof and packaging material using the same
    Patent number: 5750219
    Abstract: 1. An ester copolymer resin having a general formula ?I!. ##STR1## wherein Ar represents 2,6-naphthalene group or phenylene group, R represents ethylene group or 1,4-cyclohexylene group, and n is a number of 100 to 1000 and a polymer alloy having a solubility parameter of 10.8 to 11.9 consisting essentialy of the ester copolymer and a polycarbonate resin are provided. The ester resin and the alloy are transparent and has a beat resistance and a hot water resistance (resistance to whitening) resisting sterilization of food, a good heat sealability to aluminum closure, and recycling ability with PET resin.
    Type: Grant
    Filed: August 25, 1995
    Date of Patent: May 12, 1998
    Assignees: NKK Corporation, Kyodo Printing Co., Ltd.
    Inventors: Yasuhiro Harada, Shinichiro Mori, Kayo Hasegawa, Junichi Kitagawa, Yoichiro Inoue, Eiichi Kai, Shinichi Sekine, Yuuzou Fukawa, Takashi Shirane, Kazuhiro Hamauji