Patents by Inventor Nitta Kazunari

Nitta Kazunari 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 for production of cystine from cysteine
    Patent number: 4769491
    Abstract: From the aqueous solution containing cysteine obtained by the enzymatic method or fermentative method, cystine is produced in a high yield by oxidizing the cysteine in the presence of dimethyl sulfoxide.
    Type: Grant
    Filed: May 12, 1987
    Date of Patent: September 6, 1988
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Shyoichiro Miyahara, Toshiaki Kamiguchi, Tooru Miyahara, Hashimukai Tadashi, Nitta Kazunari