Patents by Inventor Ryousuke Tuihiji

Ryousuke Tuihiji 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).

  • Stirling refrigerator
    Patent number: 6546738
    Abstract: A Stirling refrigerator, which prevents oil rising, makes oil seal bellows have long-life, and includes a housing, cylinder, piston, piston rod and an oil seal bellows. The oil seal bellows seals a space between the housing and the cylinder, wherein a tip end of the oil seal bellows is sealed and fixed on the piston or on the piston rod inside the cylinder, and a base end of the oil seal bellows is installed on the housing. The oil seal bellows reciprocates with a stroke, wherein the tip end of the oil seal bellows is compressed to a compression side from a position of free length then returns to the position of free length.
    Type: Grant
    Filed: July 17, 2002
    Date of Patent: April 15, 2003
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Hiroshi Sekiya, Takahiro Nakamura, Itsuo Nakazaki, Takashi Inoue, Ryousuke Tuihiji, Takeo Komatsubara, Hiroshi Kanai, Kazuya Sato, Takayuki Mizuno, Eiji Fukuda, Yasuo Sakamoto, Hiroshi Nishikawa, Denji Mashimo
  • Stirling refrigerator
    Publication number: 20030019217
    Abstract: A Stirling refrigerator, which prevents oil rising, makes oil seal bellows have long-life, and includes a housing, cylinder, piston, piston rod and an oil seal bellows. The oil seal bellows seals a space between the housing and the cylinder, wherein a tip end of the oil seal bellows is sealed and fixed on the piston or on the piston rod inside the cylinder, and a base end of the oil seal bellows is installed on the housing. The oil seal bellows reciprocates with a stroke, wherein the tip end of the oil seal bellows is compressed to a compression side from a position of free length then returns to the position of free length.
    Type: Application
    Filed: July 17, 2002
    Publication date: January 30, 2003
    Inventors: Hiroshi Sekiya, Takahiro Nakamura, Itsuo Nakazaki, Takashi Inoue, Ryousuke Tuihiji, Takeo Komatsubara, Hiroshi Kanai, Kazuya Sato, Takayuki Mizuno, Eiji Fukuda, Yasuo Sakamoto, Hiroshi Nishikawa, Denji Mashimo