Patents by Inventor Tsukasa Oyama

Tsukasa Oyama 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: 9068254
    Abstract: A flow regulating member of a hot dip coating tank which is able to suppress stir-up of bottom dross, characterized by being provided with flow regulating member horizontal plates which are respectively arranged horizontally from below two side end parts of a sink roll, which is arranged inside of a coating tank in a rotatable manner, toward outside directions of the sink roll and side members which are arranged at positions separated from the two ends of the sink roll, which extend upward from the end parts of the respective horizontal plates, and in which large numbers of dispersion holes are formed, the side members having an aperture ratio of 20 to 80%, and the dispersion holes having a hole diameter of 5 to 50 mm.
    Type: Grant
    Filed: January 16, 2012
    Date of Patent: June 30, 2015
    Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Mikio Kawamura, Yu Yamauchi, Tsukasa Oyama, Masaaki Omodaka, Noboru Furuta, Koichi Nishizawa
  • Patent number: 8887661
    Abstract: A flow regulating member of a hot dip coating tank which can suppress stir-up of bottom dross, characterized by being provided with horizontal plates which are respectively arranged horizontally from below two side end parts of a sink roll, which is arranged inside of a coating tank in a rotatable manner, toward outside directions of the sink roll and louvers which are arranged above from the end parts of the respective horizontal plates at positions separated from the two ends of the sink roll and which have flow direction changing members which are slanted so that their heights become gradually higher toward the wall surface sides of the coating tank.
    Type: Grant
    Filed: January 16, 2012
    Date of Patent: November 18, 2014
    Assignee: Nippon Steel & Sumitomo Metal Corporation
    Inventors: Mikio Kawamura, Yu Yamauchi, Tsukasa Oyama, Masaaki Omodaka, Makoto Kusama, Koichi Nishizawa
  • Publication number: 20130291793
    Abstract: A flow regulating member of a hot dip coating tank which is able to suppress stir-up of bottom dross, characterized by being provided with flow regulating member horizontal plates which are respectively arranged horizontally from below two side end parts of a sink roll, which is arranged inside of a coating tank in a rotatable manner, toward outside directions of the sink roll and side members which are arranged at positions separated from the two ends of the sink roll, which extend upward from the end parts of the respective horizontal plates, and in which large numbers of dispersion holes are formed, the side members having an aperture ratio of 20 to 80%, and the dispersion holes having a hole diameter of 5 to 50 mm.
    Type: Application
    Filed: January 16, 2012
    Publication date: November 7, 2013
    Applicant: NIPPON STEEL & SUMITOMO METAL COPORATION
    Inventors: Mikio Kawamura, Yu Yamauchi, Tsukasa Oyama, Masaaki Omodaka, Noboru Furuta, Koichi Nishizawa
  • Publication number: 20130263778
    Abstract: A flow regulating member of a hot dip coating tank which can suppress stir-up of bottom dross, characterized by being provided with horizontal plates which are respectively arranged horizontally from below two side end parts of a sink roll, which is arranged inside of a coating tank in a rotatable manner, toward outside directions of the sink roll and louvers which are arranged above from the end parts of the respective horizontal plates at positions separated from the two ends of the sink roll and which have flow direction changing members which are slanted so that their heights become gradually higher toward the wall surface sides of the coating tank.
    Type: Application
    Filed: January 16, 2012
    Publication date: October 10, 2013
    Inventors: Mikio Kawamura, Yu Yamauchi, Tsukasa Oyama, Masaaki Omodaka, Makoto Kusama, Koichi Nishizawa
  • Patent number: 4883611
    Abstract: Dichroic coloring agents which have a blue to blue-violet hue and have not been used to date for liquid crystal displays are disclosed. These coloring agents are represented by the following formula: ##STR1## wherein X is S or NH; R.sub.1 is a hydrogen atom, halogen atom, alkyl group or alkoxy group; and R.sub.2 is a hydrogen atom, alkyl group, aryl group or aralkyl group.
    Type: Grant
    Filed: September 9, 1988
    Date of Patent: November 28, 1989
    Assignee: Mitsui Toatsu Chemicals, Incorporated
    Inventors: Keisuke Takuma, Sizuo Kuroda, Tsukasa Oyama, Hiroshi Aiga