Patents by Inventor Tadashi Hukami

Tadashi Hukami 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).

  • Method of purifying crude xanthophylls
    Publication number: 20040115758
    Abstract: There is disclosed herein a process for purifying a crude xanthophyll which is characterized by acting a lipase on the crude xanthophyll, which is obtained by extracting algae with a solvent, in the present of water under an acidic condition without adjusting the pH whereupon the contaminating neutral lipids (mono-, di- and triglycerides) are selectively hydrolyzed, subjecting the lipase-treated liquor to oil/water separation and removing free fatty acids from the oil layer fractioned thereby elevating the content of xanthophyll.
    Type: Application
    Filed: January 15, 2004
    Publication date: June 17, 2004
    Inventors: Yuji Shimada, Toshihiro Nagao, Akio Sugihara, Yoshio Tominaga, Heiji Ikushima, Tadashi Hukami, Hisato Ikai