Patents by Inventor Kengo FUTAMI

Kengo FUTAMI 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).

  • Multi-part dental cement
    Patent number: 11173100
    Abstract: The present invention provides a dental cement showing excellent storage stability, undergoing little change in paste properties during long-term storage, and having a small solidification risk during long-term storage. The present invention relates to a multi-part dental cement comprising: a first paste comprising an acid group-containing (meth)acrylic polymerizable monomer (a), a polyfunctional (meth)acrylic polymerizable monomer (b) containing no acid group, an oxidizing agent (c-1) of a chemical polymerization initiator, and a filler (d); and a second paste comprising a polyfunctional (meth)acrylic polymerizable monomer (b) containing no acid group, a reducing agent (c-2) of a chemical polymerization initiator, and a filler (e), wherein the filler (d) is treated with a surface treatment agent and has an average particle diameter of 0.01 to 50.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: November 16, 2021
    Assignee: KURARAY NORITAKE DENTAL INC.
    Inventors: Mariko Kawana, Shumei Ishihara, Mitsuru Takei, Kengo Futami
  • MULTI-PART DENTAL CEMENT
    Publication number: 20190262240
    Abstract: The present invention provides a dental cement showing excellent storage stability, undergoing little change in paste properties during long-term storage, and having a small solidification risk during long-term storage. The present invention relates to a multi-part dental cement comprising: a first paste comprising an acid group-containing (meth)acrylic polymerizable monomer (a), a polyfunctional (meth)acrylic polymerizable monomer (b) containing no acid group, an oxidizing agent (c-1) of a chemical polymerization initiator, and a filler (d); and a second paste comprising a polyfunctional (meth)acrylic polymerizable monomer (b) containing no acid group, a reducing agent (c-2) of a chemical polymerization initiator, and a filler (e), wherein the filler (d) is treated with a surface treatment agent and has an average particle diameter of 0.01 to 50.
    Type: Application
    Filed: October 20, 2017
    Publication date: August 29, 2019
    Applicant: KURARAY NORITAKE DENTAL INC.
    Inventors: Mariko KAWANA, Shumei ISHIHARA, Mitsuru TAKEI, Kengo FUTAMI
  • Syringe for dental use
    Patent number: D909571
    Type: Grant
    Filed: January 4, 2019
    Date of Patent: February 2, 2021
    Assignees: KURARAY NORITAKE DENTAL INC., YOSHINO KOGYOSHO CO., LTD.
    Inventors: Kengo Futami, Yusuke Fujimura, Yamato Nojiri, Takayuki Sunagawa, Kazuhisa Yoshimura