Patents by Inventor Tomoyuki Iwashima

Tomoyuki Iwashima 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).

  • Photocurable resin composition and novel siloxane compound
    Patent number: 9063415
    Abstract: Disclosed is a photocurable resin composition that is alkali-developable, provides a cured product having excellent adhesiveness and scratch resistance, and is useful as a hard-coat material for an image display surface of an image display device. Also disclosed is a novel siloxane compound that is useful as a resin component of the aforementioned photocurable resin composition. Specifically, the invention provides: a photocurable resin composition including (A) a polyol acrylate compound, (B) a compound including, in the molecule thereof, an acrylic or methacrylic group and a carboxyl group, (C) a siloxane compound represented by one of the general formulae (1) to (4), and (D) a photoradical generating agent; and a novel siloxane compound represented by the general formula (4). The specific contents of the general formulae (1) to (4) are as described in the Description.
    Type: Grant
    Filed: October 22, 2012
    Date of Patent: June 23, 2015
    Assignee: ADEKA CORPORATION
    Inventors: Kenji Hara, Tomoyuki Iwashima, Jinichi Omi, Seiichi Saito
  • PHOTOCURABLE RESIN COMPOSITION AND NOVEL SILOXANE COMPOUND
    Publication number: 20140205949
    Abstract: Disclosed is a photocurable resin composition that is alkali-developable, provides a cured product having excellent adhesiveness and scratch resistance, and is useful as a hard-coat material for an image display surface of an image display device. Also disclosed is a novel siloxane compound that is useful as a resin component of the aforementioned photocurable resin composition. Specifically, the invention provides: a photocurable resin composition including (A) a polyol acrylate compound, (B) a compound including, in the molecule thereof, an acrylic or methacrylic group and a carboxyl group, (C) a siloxane compound represented by one of the general formulae (1) to (4), and (D) a photoradical generating agent; and a novel siloxane compound represented by the general formula (4). The specific contents of the general formulae (1) to (4) are as described in the Description.
    Type: Application
    Filed: October 22, 2012
    Publication date: July 24, 2014
    Applicant: ADEKA CORPORATION
    Inventors: Kenji Hara, Tomoyuki Iwashima, Jinichi Omi, Seiichi Saito