Patents by Inventor Masanori Sakuragi

Masanori Sakuragi 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: 5428850
    Abstract: A shower apparatus is provided with a plurality of shower discharge ports. More specifically, a shower apparatus is provided, in which hot water remains in a hot water line, that is communicated with the shower discharge ports, after the discharge has been completed. The hot water, which has a lower temperature, is drained through a drain valve for disposal of the water in the hot water line and a drain line. At the beginning of the next shower discharge, cold water is thus prevented from being discharged. The operation of an opening and closing valve for effecting discharge and stoppage of each shower discharge port is controlled according to control programs, so that the shower discharge is automatically controlled. The content of the shower discharge, carried out according to the programs, can be changed by a user through the operation of a control section. Moreover, upon the start of the shower discharge, a sudden jet of water is prevented.
    Type: Grant
    Filed: July 28, 1994
    Date of Patent: July 4, 1995
    Assignee: Toto Ltd.
    Inventors: Kazuo Hiraishi, Masaru Zaitsu, Masanori Sakuragi, Yasuharu Kato
  • Patent number: 5414879
    Abstract: The present invention is related to a shower apparatus provided with a plurality of shower discharge ports. More specifically, a shower apparatus is disclosed in which hot water remains in a hot water line connected to several shower discharge ports, after a discharge has been completed. Hot water within the hot water line which has lowered in temperature is drained through a drain valve in order to dispose of the water. At the beginning of the next shower discharge, cold water is prevented from being discharged. The operation of an opening and closing valve for effecting discharge and stoppage of each shower discharge port is controlled according to control programs, whereby the shower discharge is substantially controlled. The content of the shower discharge, carried out according to the programs, can be changed by a user through the operation of a central section. Moreover, upon the start of a shower discharge, a sudden jet of water is prevented.
    Type: Grant
    Filed: December 9, 1993
    Date of Patent: May 16, 1995
    Assignee: Toto, Ltd.
    Inventors: Kazuo Hiraishi, Masaru Zaitsu, Masanori Sakuragi, Yasuharu Kato