Patents by Inventor Masaaki Sugi

Masaaki Sugi 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).

  • Sulfonium salt compound, method for producing the same, and photoacid generator
    Patent number: 9465288
    Abstract: Provided is a sulfonium salt compound represented by the following general formula (I): where R1 and R2 each denote the same or a different alkyl group having 1 to 18 carbon atoms, R3 and R4 each denote the same or a different alkyl group having 1 to 10 carbon atoms, and X? denotes a sulfone imide anion or a perfluoroalkanesulfonic acid anion, wherein the substituents denoted by R3O and R4O are each located at an arbitrary position selected from the 2-position to the 8-position of the naphthyl group.
    Type: Grant
    Filed: December 3, 2013
    Date of Patent: October 11, 2016
    Assignee: DSP GOKYO FOOD & CHEMICAL CO., LTD.
    Inventors: Hironori Kinoshita, Sumitsugu Kisanuki, Masaaki Sugi
  • NOVEL SULFONIUM SALT COMPOUND, METHOD FOR PRODUCING THE SAME, AND PHOTOACID GENERATOR
    Publication number: 20150293445
    Abstract: Provided is a sulfonium salt compound represented by the following general formula (I): where R1 and R2 each denote the same or a different alkyl group having 1 to 18 carbon atoms, R3 and R4 each denote the same or a different alkyl group having 1 to 10 carbon atoms, and X? denotes a sulfone imide anion or a perfluoroalkanesulfonic acid anion, wherein the substituents denoted by R3O and R4O are each located at an arbitrary position selected from the 2-position to the 8-position of the naphthyl group.
    Type: Application
    Filed: December 3, 2013
    Publication date: October 15, 2015
    Inventors: Hironori Kinoshita, Sumitsugu Kisanuki, Masaaki Sugi
  • Sulfonium salt, method for producing the same, and photoacid generator
    Patent number: 8952204
    Abstract: A sulfonium salt compound represented by the following general formula (I): where R1 and R2 each denote the same or a different alkyl group having 1 to 18 carbon atoms, R3 and R4 each denote the same or a different alkyl group having 1 to 10 carbon atoms, X? denotes a sulfonate anion or a carboxylate anion, and the substituents denoted by R3O and R4O are each located at an arbitrary position selected from the 2-position to the 8-position of the naphthyl group.
    Type: Grant
    Filed: December 3, 2013
    Date of Patent: February 10, 2015
    Assignees: DSP Gokyo Food & Chemical Co., Ltd., Tokyo Ohka Kogyo Co., Ltd.
    Inventors: Hironori Kinoshita, Sumitsugu Kisanuki, Masaaki Sugi, Takayoshi Mori
  • NOVEL SULFONIUM SALT, METHOD FOR PRODUCING THE SAME, AND PHOTOACID GENERATOR
    Publication number: 20140163254
    Abstract: A sulfonium salt compound represented by the following general formula (I): where R1 and R2 each denote the same or a different alkyl group having 1 to 18 carbon atoms, R3 and R4 each denote the same or a different alkyl group having 1 to 10 carbon atoms, X? denotes a sulfonate anion or a carboxylate anion, and the substituents denoted by R3O and R4O are each located at an arbitrary position selected from the 2-position to the 8-position of the naphthyl group.
    Type: Application
    Filed: December 3, 2013
    Publication date: June 12, 2014
    Inventors: Hironori Kinoshita, Sumitsugu Kisanuki, Masaaki Sugi, Takayoshi Mori