Patents by Inventor Yoshitomo Yamamoto

Yoshitomo Yamamoto 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: 5177934
    Abstract: A packaged toilet paper made up with a strip of toilet paper which is folded zigzag into a rectangular parallelepipedic body and vacuum-packaged with an airtight synthetic resin sheet, and a method of manufacturing a packaged toilet paper by folding a strip of toilet paper zigzag into a rectangular parallelepipedic body, sealing the rectangular parallelepipedic body of toilet paper with an airtight synthetic resin sheet, and by executing a vacuum packaging, with flat solid members being put and pressed respectively on the top and bottom faces of the toilet paper sealed with said synthetic resin sheet.
    Type: Grant
    Filed: September 25, 1991
    Date of Patent: January 12, 1993
    Assignee: Daiho Giken Co., Ltd.
    Inventor: Yoshitomo Yamamoto
  • Patent number: 5171130
    Abstract: An oil cooled compressor includes a compressor body having a low pressure suction passage and a high pressure discharge passage. An oil tank is mounted to the discharge passage such that oil and drain water separated from a compressed gas in the discharge passage collect in the oil tank with water at a lowermost part of the oil tank. A drain water passage separate from a compressed gas discharge passage and an oil discharge passage, connects the lowermost part of the oil tank with a portion of the compressor body which is substantially at the low pressure. Drain water is thereby evaporated from the oil tank and returned to the compressor body.
    Type: Grant
    Filed: July 17, 1991
    Date of Patent: December 15, 1992
    Assignee: Kabushiki Kaisha Kobe Seiko Sho
    Inventors: Terumasa Kume, Kazuo Kubo, Masaki Matsukuma, Tsutomu Horii, Yoshitomo Yamamoto