Patents by Inventor Katsuma Baba

Katsuma Baba 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).

  • Scratchable hiding layer-forming silicone composition
    Patent number: 7029754
    Abstract: A hiding layer-forming silicone composition comprising (A) a diorganopolysiloxane comprising structural units of formula (1) and having an average degree of polymerization of at least 50, wherein R1 is alkyl or aryl, and R2 is alkyl, aryl, alkenyl, alkoxy, alkoxyalkoxy, hydroxyl or epoxy, (B) an organopolysiloxane comprising structural units of formulae (2) and (3): (R1—)n(R2—)3?nSi—O—??(2) wherein R1 and R2 are as defined above, n is an integer of 1 to 3, (C) an inorganic powder opacifier, (D) a curing catalyst, and (E) an organic solvent is effectively curable and capable of forming a hiding layer which temporarily adheres well to various substrates of paper, synthetic paper and plastic film while it remains scratchable.
    Type: Grant
    Filed: July 16, 2002
    Date of Patent: April 18, 2006
    Assignee: Shin-Etsu Chemical Co.,Ltd.
    Inventors: Kenji Yamamoto, Katsuma Baba, Masahiko Ogawa
  • Scratchable hiding layer-forming silicone composition
    Publication number: 20030027913
    Abstract: A hiding layer-forming silicone composition comprising (A) a diorganopolysiloxane comprising structural units of formula (1) and having an average degree of polymerization of at least 50, 1
    Type: Application
    Filed: July 16, 2002
    Publication date: February 6, 2003
    Inventors: Kenji Yamamoto, Katsuma Baba, Masahiko Ogawa