Patents by Inventor Masatoshi Niwa

Masatoshi Niwa 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).

  • Screen for a large size view field
    Patent number: 5863630
    Abstract: A screen for a large size view field is provided which is portable. The screen is formed by a plurality of screen members having a predetermined area and arranged up and down, right and left. A foamed film having bubbles therein is bonded to a back side surface of each screen member.
    Type: Grant
    Filed: November 22, 1996
    Date of Patent: January 26, 1999
    Assignee: Arisawa Mfg. Co., Ltd.
    Inventors: Hajime Maruta, Masatoshi Niwa
  • Reflective screen for a liquid crystal projector and method for producing the same
    Patent number: 5768019
    Abstract: To improve non-flammability, there is provided a reflective screen for a liquid crystal projector or display in an aircraft. An antireflective member holding an antireflective function on its surface is provided on a top surface of a polarizing film through urethane resin system adhesive, and a reflective member is provided on a bottom surface of the polarizing film through an acrylic resin system pressure sensitive adhesive.
    Type: Grant
    Filed: November 22, 1995
    Date of Patent: June 16, 1998
    Assignee: Arisawa Mfg. Co., Ltd.
    Inventors: Masatoshi Niwa, Yoshikazu Umezawa, Hajime Maruta