Patents by Inventor Masahito Katayama

Masahito Katayama 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).

  • Plating film and plating film production method
    Patent number: 11912612
    Abstract: The present invention provides a plating film that exhibits good adhesion to glass substrates. The present invention is a plating film comprising an oxide layer, an electroless plating film, and an electrolytic copper plating film in this order.
    Type: Grant
    Filed: June 1, 2022
    Date of Patent: February 27, 2024
    Assignees: OKUNO CHEMICAL INDUSTRIES CO., LTD., PANASONIC HOLDINGS CORPORATION
    Inventors: Mayu Tsukuda, Toshimitsu Nagao, Junichi Katayama, Kazuya Shimada, Masahito Hayamizu, Toshihiko Sakata, Shuhei Fuku, Asuka Hirooka
  • Photopolymerizable composition
    Patent number: 4636534
    Abstract: Disclosed herein is a photopolymerizable composition comprising poly-N-vinylpyrrolidone (A); a compound (B) represented by the formula (I): ##STR1## wherein each of R.sup.1, R.sup.2 and R.sup.3 represents a hydrogen atom or a methyl group; an acid amide (C) represented by the formula (II): ##STR2## wherein R.sup.4 represents a hydrogen atom or a methyl group and a monomeric compound (D) having an acryloyl group or a methacryloyl group in the molecule thereof as well as optionally a photopolymerization-initiator (E).
    Type: Grant
    Filed: October 29, 1985
    Date of Patent: January 13, 1987
    Assignee: Nippon Kayaku Kabushiki Kaisha
    Inventors: Kazuyoshi Nawata, Masahito Katayama, Minoru Yokoshima