Patents by Inventor Yoshiteru Sata

Yoshiteru Sata 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: 4047958
    Abstract: A photographic sensitive material comprising a support having thereon at least one photographic emulsion layer, wherein at least one surface layer of the photographic sensitive material contains an alkylpolysiloxane having in the side chain thereof a polyoxyethylene chain, said alkylpolysiloxane being represented by the following general formula (I): ##STR1## in which R represents an aliphatic group or aryl group, R' represents a hydrogen atom, an aliphatic group or an aryl group R" represents an alkyl group or alkoxyalkyl group, A represents divalent residue of an aliphatic hydrocarbon, n represents 0 or an integer of 1 to 12, p represents a value of 0 to 50, q represents a value of 2 to 50, x represents a value of 0 to 100, y represents a value of 1 to 50, z represents a value of 0 to 100 and x + y + z represents a value of 5 to 250.
    Type: Grant
    Filed: April 7, 1976
    Date of Patent: September 13, 1977
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masakazu Yoneyama, Toshimasa Usami, Shiyoichi Ino, Yoshiteru Sata, Nobuo Yamamoto