Patents by Inventor Motoshige Tatsumi

Motoshige Tatsumi 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).

  • Structure for preventing glass from breaking and plasma display device
    Patent number: 7019459
    Abstract: A structure for preventing glass from breaking, having a combination of a surface glass breaking prevention material, a glass substrate and a metal plate arranged in the order, wherein an internal glass breaking prevention material made of an elastomer or viscoelastomer having a dynamic shear modulus of not larger than 1×109 Pa is interposed between the glass substrate and the metal plate. Particularly, in the glass breaking prevention structure configured as described above, destructive impact energy (B) by which the glass substrate is destroyed when a steel ball 50 mm in diameter and 500 g in weight is dropped on the surface glass breaking prevention material is not lower than 1.2 times as high as destructive impact energy (A) measured in the same manner upon a glass breaking prevention structure having the same configuration as the first-mentioned structure except that the internal glass breaking prevention material is not interposed.
    Type: Grant
    Filed: August 21, 2002
    Date of Patent: March 28, 2006
    Assignee: Nitto Denko Corporation
    Inventors: Yoshihiro Hieda, Motoshige Tatsumi, Yukiko Azumi, Seiji Kijima, Kazuhiko Miyauchi, Toshitaka Nakamura, Tsukasa Sato
  • Structure for preventing glass from breaking and plasma display device
    Publication number: 20040052080
    Abstract: A structure for preventing glass from breaking, having a combination of a surface glass breaking prevention material, a glass substrate and a metal plate arranged in the order, wherein an internal glass breaking prevention material made of an elastomer or viscoelastomer having a dynamic shear modulus of not larger than 1×109 Pa is interposed between the glass substrate and the metal plate. Particularly, in the glass breaking prevention structure configured as described above, destructive impact energy (B) by which the glass substrate is destroyed when a steel ball 50 mm in diameter and 500 g in weight is dropped on the surface glass breaking prevention material is not lower than 1.2 times as high as destructive impact energy (A) measured in the same manner upon a glass breaking prevention structure having the same configuration as the first-mentioned structure except that the internal glass breaking prevention material is not interposed.
    Type: Application
    Filed: August 21, 2002
    Publication date: March 18, 2004
    Applicant: NITTO DENKO CORPORATION
    Inventors: Yoshihiro Hieda, Motoshige Tatsumi, Yukiko Azumi, Seiji Kijima, Kazuhiko Miyauchi, Toshitaka Nakamura, Tsukasa Sato
  • Double-sided pressure-sensitive adhesive tape and adhesion method
    Publication number: 20040048062
    Abstract: A double-sided pressure-sensitive adhesive tape has a pressure-sensitive adhesive layer on the both sides of a substrate, wherein the pressure-sensitive adhesive layer on at least one side is a silicone based pressure-sensitive adhesive layer containing a polydiorganosiloxane, and a filler is added to the silicone based pressure-sensitive adhesive layer.
    Type: Application
    Filed: September 5, 2003
    Publication date: March 11, 2004
    Applicant: NITTO DENKO CORPORATION
    Inventors: Akiko Nonaka, Kazuyuki Yagura, Masahiko Ando, Motoshige Tatsumi
  • Damping material for a head suspension of a magnetic head
    Patent number: 6212043
    Abstract: The damping material is mounted over the flat part to the curved part of a supporting arm of a head supporting spring of a disk unit composed of a magnetic head, the head suspension which supports the former and a fixing block that fixes the suspension, and the rate of change in static spring constant of the head supporting spring mounted with the damping material is set within 20% in comparison with the static spring constant of the un-mounted head supporting spring. As the constraining body, a metal foil or a resin film is used.
    Type: Grant
    Filed: December 3, 1997
    Date of Patent: April 3, 2001
    Assignee: Nitto Denko Corporation
    Inventors: Masao Nakamura, Hiroyuki Iida, Motoshige Tatsumi, Hidetsugu Toyota