Patents by Inventor Hironaka Wada

Hironaka Wada 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).

  • Highly pure squalane, raw material for pharmaceuticals and cosmetics prepared by using the same and method for producing the same
    Patent number: 6165481
    Abstract: Highly pure squalane in which the content of pristane is reduced to 10 wt ppm or less, can be obtained by refining the squalane of animal oil or fat origin through thin film distillation, said highly pure squalane is useful as a raw material for producing cosmetics and medical and pharmaceutical preparations and especially, it is quite effective as a lubricating agent for condoms and as a component of adjuvant composition.
    Type: Grant
    Filed: December 22, 1998
    Date of Patent: December 26, 2000
    Assignee: Nippon Petrochemicals Company, Inc.
    Inventors: Atsushi Kaiya, Tomio Nakamura, Hironaka Wada