Patents by Inventor Minoru Nishinohara

Minoru Nishinohara 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).

  • Aliphatic polyesters and method of preparing the same
    Patent number: 5504148
    Abstract: The present invention provides a high molecular weight aliphatic polyester which is biodegradable by microorganisms in soils and which is utilized as a molded article as well as a method to prepare the same. This polyester has a structure shown below: ##STR1## as well as those analogous thereto.
    Type: Grant
    Filed: November 22, 1994
    Date of Patent: April 2, 1996
    Assignee: Unitika Ltd.
    Inventors: Yoshiaki Iwaya, Katsuyuki Mukai, Masatoshi Kawanishi, Minoru Nishinohara
  • Polarizing film and process for the production of the same
    Patent number: 5071906
    Abstract: A polarizing film comprising a uniaxially stretched film containing a polyvinyl alcohol having a degree of polymerization of at least about 2,500, and at least one polarizing agent selected from iodine and a dichroic dye, as well as a process for the production of the same. This polarizing film is superior in heat resistance and moist heat resistance to conventional films and has excellent optical properties, such as a high polarizing coefficient and transmittance.
    Type: Grant
    Filed: November 16, 1990
    Date of Patent: December 10, 1991
    Assignee: Unitika Ltd.
    Inventors: Chikafumi Tanaka, Masami Shiozawa, Minoru Nishinohara