Patents by Inventor Genta Maruyama

Genta Maruyama 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).

  • L-ascorbic acid-2-o-maleic acid-a-tocopherol diester 1-propanol adduct and process for producing the same
    Patent number: 6828348
    Abstract: L-Ascorbic acid-2-O-maleic acid-&agr;-tocopherol diester.1-propanol adduct or its pharmacologically acceptable salt; cosmetic components, antioxidants, radical scavengers, anti-inflammatory agents and elastase inhibitors containing the same as the active ingredient; and a process for producing the above-described adduct characterized by comprising extracting a solution containing L-ascorbic acid-2-O-maleic acid-&agr;-tocopherol diester with a solvent, distilling off the solvent, and adding to the residue 1-propanol mixed with an organic solvent followed by crystallization.
    Type: Grant
    Filed: November 25, 2003
    Date of Patent: December 7, 2004
    Assignee: Senju Pharmaceutical Co., Ltd.
    Inventors: Kazumi Ogata, Noriko Saito, Kazuhiko Yamada, Genta Maruyama
  • L-ascorbic acid-2-o-maleic acid-a-tocopherol diester 1-propanol adduct and process for producing the same
    Publication number: 20040171676
    Abstract: L-Ascorbic acid-2-O-maleic acid-&agr;-tocopherol diester.1-propanol adduct or its pharmacologically acceptable salt; cosmetic components, antioxidants, radical scavengers, anti-inflammatory agents and elastase inhibitors containing the same as the active ingredient; and a process for producing the above-described adduct characterized by comprising extracting a solution containing L-ascorbic acid-2-O-maleic acid-&agr;-tocopherol diester with a solvent, distilling off the solvent, and adding to the residue 1-propanol mixed with an organic solvent followed by crystallization.
    Type: Application
    Filed: November 25, 2003
    Publication date: September 2, 2004
    Inventors: Kazumi Ogata, Noriko Saito, Kazuhiko Yamada, Genta Maruyama