Patents by Inventor Yoshinori Hikasa

Yoshinori Hikasa 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).

  • Void forming core formwork for concrete beam
    Patent number: 7353641
    Abstract: To render a formwork (10), having a hollow (11b) defined therein and embedded in the elongated concrete member (40) during casting of a concrete material, to be lightweight, environmentally friendly and inexpensive and to have a sufficient strength, the formwork (10) includes a tubular member (11) formed by bending an oblong plate of corrugated cardboard (5) made of paper. The corrugated cardboard plate (5) includes a plurality of corrugated cardboards (3) laminated together and each formed by bonding liner sheets (2) to surfaces of a corrugated sheet (1). The corrugated cardboards (3) are laminated together with flutes of the corrugated cardboards (3) oriented in a direction (P) across a thickness of the corrugated cardboard plate (5), and a sheet (4) is bonded to front and rear major surfaces thereof.
    Type: Grant
    Filed: March 2, 2005
    Date of Patent: April 8, 2008
    Assignees: Ecoboard Co., Ltd., P.S Mitsubishi Construction Co., Ltd.
    Inventors: Hisafumi Yoshii, Yoshinori Hikasa
  • Formwork for concrete beam
    Publication number: 20050229536
    Abstract: To render a formwork (10), having a hollow (11b) defined therein and embedded in the elongated concrete member (40) during casting of a concrete material, to be lightweight, environmentally friendly and inexpensive and to have a sufficient strength, the formwork (10) includes a tubular member (11) formed by bending an oblong plate of corrugated cardboard (5) made of paper. The corrugated cardboard plate (5) includes a plurality of corrugated cardboards (3) laminated together and each formed by bonding liner sheets (2) to surfaces of a corrugated sheet (1). The corrugated cardboards (3) are laminated together with flutes of the corrugated cardboards (3) oriented in a direction (P) across a thickness of the corrugated cardboard plate (5), and a sheet (4) is bonded to front and rear major surfaces thereof.
    Type: Application
    Filed: March 2, 2005
    Publication date: October 20, 2005
    Inventors: Hisafumi Yoshii, Yoshinori Hikasa