Patents by Inventor Hironobu Akiyama

Hironobu Akiyama 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).

  • Window film
    Patent number: 5925453
    Abstract: A window film is disclosed. The window film comprises a light reflecting layer and an infrared absorbing layer. The window film can minimize the reflection of infrared rays and reduce the intensity of condensed infrared rays, even when the inside surface of a curved glass window is irradiated by sunlight.
    Type: Grant
    Filed: March 17, 1997
    Date of Patent: July 20, 1999
    Assignee: Lintec Corporation
    Inventors: Masanori Kase, Hironobu Akiyama