Patents by Inventor Masafumi Kasai

Masafumi Kasai 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).

  • Cleaning agent
    Patent number: 7700531
    Abstract: There is provided a cleaning agent comprising a lactone represented by the following formula (1): wherein R1 is an alkylene group having 3 to 6 carbon atoms. The cleaning agent is useful for cleaning an organic electroluminescence material, photosensitive resin, liquid crystal or wax.
    Type: Grant
    Filed: December 14, 2005
    Date of Patent: April 20, 2010
    Assignee: Tokuyama Corporation
    Inventors: Hisahiko Iwamoto, Yoshifumi Inoue, Masaaki Nakashima, Masafumi Kasai
  • Cleaning Agent
    Publication number: 20080153732
    Abstract: There is provided a cleaning agent comprising a lactone represented by the following formula (1): wherein R1 is an alkylene group having 3 to 6 carbon atoms. The cleaning agent is useful for cleaning an organic electroluminescence material, photosensitive resin, liquid crystal or wax.
    Type: Application
    Filed: December 14, 2005
    Publication date: June 26, 2008
    Inventors: Hisahiko Iwamoto, Yoshifumi Inoue, Masaaki Nakashima, Masafumi Kasai