Patents by Inventor Magashi Nagamori

Magashi Nagamori 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).

  • Ammonium fluoroalkanesulfonates and a synthesis method therefor
    Patent number: 9024058
    Abstract: An ammonium hydroxyfluoroalkanesulfinate is obtained by using an organic base while sulfinating a bromofluoroalcohol with a sulfinating agent. An ammonium hydroxyfluoroalkanesulfonate is obtained by oxidizing the ammonium hydroxyfluoroalkanesulfinate. An onium fluoroalkanesulfonate is obtained by converting the ammonium hydroxyfluoroalkanesulfonate into an onium salt through esterification. This onium fluoroalkanesulfonate is useful as a photoacid generator in chemically amplified resists and the like.
    Type: Grant
    Filed: March 12, 2010
    Date of Patent: May 5, 2015
    Assignee: Central Glass Company, Limited
    Inventors: Magashi Nagamori, Yuji Hagiwara, Takashi Masubuchi, Satoru Narizuka