Patents by Inventor Hideo Tazuke

Hideo Tazuke 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).

  • Process for producing hemi-alkali metal salt of 2-pyrrolidone-5-carboxylic acid
    Patent number: 3952011
    Abstract: Hemi-alkali metal salts of 2-pyrrolidone-5-carboxylic acid, believed to have the formula: ##SPC1##Wherein Me is an alkali metal, is formed by reaction of 0.75 to 0.99 moles of an alkali metal hydroxide per mole of 2-pyrrolidone-5-carboxylic acid.
    Type: Grant
    Filed: February 25, 1974
    Date of Patent: April 20, 1976
    Assignee: Ajinomoto Company, Ltd.
    Inventors: Miyoji Dazai, Katsumi Sugiyama, Masaaki Iida, Hideo Tazuke, Hiroo Kageyama