Patents by Inventor Takahiro Arai

Takahiro Arai 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).

  • Patent number: 5798011
    Abstract: A method of making a combination concrete panel wall, concrete window frame, and concrete sash glazing frame. The sill, lintel, and jambs of the window frame are fiber-reinforced concrete extrusions which are cut to length and cemented together. The hardened frame is placed in a concrete panel molding frame to locate and define a window opening. The concrete panel wall grout is then poured and dovetail-type mortise and tenon joints are precast in the exterior faces of the window frame which abut the poured concrete wall panel plastic grout, to permanently mold and interlock the window frame to the panel wall. The sash members are fitted about a window pane which is located in interior grooves in the sash members and then glazed. Sealing means interconnect the sash to the window frame to provide a condensation-resistant, water-tight, air-tight, heat and fire-resistant concrete wall closure.
    Type: Grant
    Filed: August 9, 1996
    Date of Patent: August 25, 1998
    Assignees: Kajima Corporation, Kabushiki Kaisha F R C
    Inventors: Tatsuo Suenaga, Hiroaki Nakagawa, Shin Terauchi, Takeo Kikuchi, Shinnosuke Aiba, Mikio Kobayashi, Yutaka Katsuta, Kenji Ago, Katsumi Kosuge, Yasuyuki Matsubara, Masato Tanaami, Shunichi Sugishita, Hideki Ikeda, Toshio Furuya, Shigeyuki Akihama, Takahiro Arai
  • Patent number: 5591286
    Abstract: A method of making a combination concrete panel wall, concrete window frame, and concrete sash glazing frame. The sill, lintel, and jambs of the window frame are fiber-reinforced concrete extrusions. The hardened frame is placed in a concrete panel molding frame to locate and define a window opening. The concrete panel wall grout is then poured and dovetail-type mortise and tenon joints are precast in the exterior faces of the window frame which abut the poured concrete wall panel plastic grout, to permanently mold and interlock the window frame to the panel wall. The sash members are fitted about a window pane which is located in interior grooves in the sash members and then glazed. Sealing means interconnects the sash to the window frame to provide a condensation-resistant, water-tight, air-tight, heat and fire-resistant concrete wall closure.
    Type: Grant
    Filed: July 20, 1994
    Date of Patent: January 7, 1997
    Assignees: Kajima Corporation, Kabushiki Kaisha FRC
    Inventors: Tatsuo Suenaga, Hiroaki Nakagawa, Shin Terauchi, Takeo Kikuchi, Shinnosuke Aiba, Mikio Kobayashi, Yutaka Katsuta, Kenji Ago, Katsumi Kosuge, Yasuyuki Matsubara, Masato Tanaami, Shunichi Sugishita, Hideki Ikeda, Toshio Furuya, Shigeyuki Akihama, Takahiro Arai
  • Patent number: 5575870
    Abstract: A method of making a combination concrete panel wall, concrete window frame, and concrete sash glazing frame. The sill, lintel, and jambs of the window frame are fiber-reinforced concrete extrusions which are cut to length and cemented together. The hardened frame is placed in a concrete panel molding frame to locate and define a window opening. The concrete panel wall grout is then poured and dovetail-type mortise and tenon joints are precast in the exterior faces of the window frame which abut the poured concrete wall panel plastic grout, to permanently mold and interlock the window frame to the panel wall. The sash members are fitted about a window pane which is located in interior grooves in the sash members and then glazed. Sealing means interconnect the sash to the window frame to provide a condensation-resistant, water-tight, air-tight, heat and fire-resistant concrete wall closure.
    Type: Grant
    Filed: June 1, 1995
    Date of Patent: November 19, 1996
    Assignees: Kajima Corporation, Kabushiki Kaisha FRC
    Inventors: Tatsuo Suenaga, Hiroaki Nakagawa, Shin Terauchi, Takeo Kikuchi, Shinnosuke Aiba, Mikio Kobayashi, Yutaka Katsuta, Kenji Ago, Katsumi Kosuge, Yasuyuki Matsubara, Masato Tanaami, Shunichi Sugishita, Hideki Ikeda, Toshio Furuya, Shigeyuki Akihama, Takahiro Arai
  • Patent number: 5356687
    Abstract: A combination concrete panel wall, concrete window frame, and concrete sash glazing frame. The sill, lintel, and jambs of the window frame are fiber-reinforced concrete extrusions which are cut to length and cemented together. The hardened frame is placed in a concrete panel molding frame to locate and define a window opening. The concrete panel wall grout is then poured and dovetail-type mortise and tenon joints are precast in the exterior faces of the window frame which abut the poured concrete wall panel plastic grout, to permanently mold and interlock the window frame to the panel wall. The sash members are also reinforced concrete extrusions which are cut to length, cemented together, and fitted about a window pane which is located in interior grooves in the sash members and then glazed. An elastoplastic seal interconnects the sash to the window frame to provide a condensation-resistant, water-tight, air-tight, heat and fire-resistant concrete wall closure.
    Type: Grant
    Filed: April 6, 1993
    Date of Patent: October 18, 1994
    Assignees: Kajima Corporation, Kabushiki Kaisha F R C
    Inventors: Tatsuo Suenaga, Hiroaki Nakagawa, Shin Terauchi, Takeo Kikuchi, Shinnosuke Aiba, Mikio Kobayashi, Yutaka Katsuta, Kenji Ago, Katsumi Kosuge, Yasuyuki Matsubara, Masato Tanaami, Shunichi Sugishita, Hideki Ikeda, Toshio Furuya, Shigeyuki Akihama, Takahiro Arai