Patents by Inventor Amane Watanabe

Amane Watanabe 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).

  • Heat exchanger
    Patent number: 5203402
    Abstract: A heat exchanger having outer surfaces thereof coated with a hydrophilic coating layer. The hydrophilic coating layer essentially consists of a resin as a base, containing a colloidal silica. In the hydrophilic coating layer, part of silanol groups of the colloidal silica are chemically combined with part of hydroxyl groups of the resin. Due to this chemical combination, the colloidal silica undergoes change in its properties such that it has degraded adsorptivity, making smells less liable to attach to the colloidal silica.
    Type: Grant
    Filed: February 14, 1992
    Date of Patent: April 20, 1993
    Assignees: Zexel Corporation, Nihon Parkerizing Co., Ltd.
    Inventors: Kunihiko Nishishita, Amane Watanabe, Isamu Kurosawa, Yokichi Sato