Patents by Inventor Yoshiyuki Nishide

Yoshiyuki Nishide 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 producing purified aqueous solution of hydrogen peroxide
    Patent number: 5851505
    Abstract: A purified aqueous solution of hydrogen peroxide is produced by contacting an aqueous solution of hydrogen peroxide containing organic impurities with a hydrophilic porous resin (the product under a tradename "WOFATIT EP63", etc.) having a specific surface area of not less than 800 m.sup.2 /g to remove the organic impurities in the aqueous solution of hydrogen peroxide.
    Type: Grant
    Filed: September 22, 1997
    Date of Patent: December 22, 1998
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Yoshiyuki Nishide, Yoshitsugu Minamikawa, Jun Kokubu
  • Process for production of carboxylic acid ester and formamide
    Patent number: 5312966
    Abstract: There is disclosed a process for efficiently producing a carboxylic acid ester and formamide by reacting a carboxylic acid amide with a formic acid ester or with an alcohol and carbon monoxide in the presence of a strongly basic anion-exchange resin. By the use of the strongly basic anion-exchange resin as the catalyst, the process of the present invention enables the efficient production of the carboxylic acid ester as well as formamide from the Carboxylic acid amide and Formic acid ester, etc. with a high selectivity under mild reaction conditions and facilitates the separation of the catalyst from the reaction product, thereby greatly enhancing the industrial significance of itself.
    Type: Grant
    Filed: September 14, 1992
    Date of Patent: May 17, 1994
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Takafumi Abe, Yoshiyuki Nishide, Nobuyuki Muro, Hirofumi Higuchi