Patents by Inventor Toshiya Itei

Toshiya Itei 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).

  • Silicone monomer
    Patent number: 8481608
    Abstract: The invention provides a silicone monomer having high purity and suitable for use in the manufacture of ophthalmic devices, and a contact lens produced from the silicone monomer as a polymerizable component. The silicone monomer is represented by the formula (1): wherein Y1 to Y9 each independently stands for an alkyl group having 1 to 4 carbon atoms, n is an integer of 0 to 3, a and b each independently denotes an integer of 0 or 1, and R stands for a hydrogen atom or a methyl group.
    Type: Grant
    Filed: January 19, 2010
    Date of Patent: July 9, 2013
    Assignee: NOF Corporation
    Inventors: Yosuke Matsuoka, Nobuyuki Yoshioka, Nobuyuki Sakamoto, Toshiya Itei, Ryota Kobayashi, Mao Sorimachi
  • SILICONE MONOMER
    Publication number: 20110282008
    Abstract: The invention provides a silicone monomer having high purity and suitable for use in the manufacture of ophthalmic devices, and a contact lens produced from the silicone monomer as a polymerizable component. The silicone monomer is represented by the formula (1): wherein Y1 to Y9 each independently stands for an alkyl group having 1 to 4 carbon atoms, n is an integer of 0 to 3, a and b each independently denotes an integer of 0 or 1, and R stands for a hydrogen atom or a methyl group.
    Type: Application
    Filed: January 19, 2010
    Publication date: November 17, 2011
    Applicant: NOF CORPORATION
    Inventors: Yosuke Matsuoka, Nobuyuki Yoshioka, Nobuyuki Sakamoto, Toshiya Itei, Ryota Kobayashi, Mao Sorimachi