Patents by Inventor Susumu Hirokawa

Susumu Hirokawa 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: 4947847
    Abstract: An electrically conductive adhesive, formed by polymerizing and cross-linking(a) a radically polymerizable ionic unsaturated monomer soluble in a mixture of a water-soluble polyhydric alcohol with water,(b) a trialkoxysilylalkyl (meth)acrylate represented by the general formula I: ##STR1## wherein R.sup.1 denotes hydrogen atom or methyl group, R.sup.2 an alkyl group of 1 or 2 carbon atoms, and n an integer of the value of 2 or 3, and(c) a (meth)acrylate represented by the general formula II: ##STR2## wherein R.sup.1 denotes the same meaning as defined above, R.sup.3 hydrogen atom or an alkyl group of 1 to 4 carbon atoms, and m an integer of the value of 1 to 23, in the presence of(d) a water-soluble polyhydric alcohol and (e) water,(e) a method of producing the same, and an electrode comprising the same, are all disclosed.
    Type: Grant
    Filed: August 3, 1988
    Date of Patent: August 14, 1990
    Assignee: Kyowa Gas Chemical Industry Co., Ltd.
    Inventors: Kozo Nakao, Susumu Hirokawa
  • Patent number: 4842768
    Abstract: An electrically conductive adhesive, formed by polymerizing and cross-linking(a) a radically polymerizable ionic unsaturated monomer soluble in a mixture of a water-soluble polyhydric alcohol with water,(b) a trialkoxysilylalkyl (meth)acrylate represented by the general formula I: ##STR1## wherein R.sup.1 denotes hydrogen atom or methyl group, R.sup.2 an alkyl group of 1 or 2 carbon atoms, and n an integer of the value of 2 or 3, and(c) a (meth)acrylate represented by the general formula II: ##STR2## wherein R.sup.1 denotes the same meaning as defined above, R.sup.3 hydrogen atom or an alkyl group of 1 to 4 carbon atoms, and m an integer of the value of 1 to 23, in the presence of(d) a water-soluble polyhydric alcohol and (e) water.
    Type: Grant
    Filed: January 15, 1986
    Date of Patent: June 27, 1989
    Assignee: Kyowa Gas Chemical Industry Co., Ltd.
    Inventors: Kozo Nakao, Susumu Hirokawa