Patents by Inventor Mitsuharu Hayashi

Mitsuharu Hayashi 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: 8037898
    Abstract: A reservoir tank for a vehicle brake system has a tank body including upper and lower shells joined together along mating surfaces. A float and a fluid level sensor are mounted in a fluid level detecting chamber defined in the tank body. The float is fitted on a shaft of the fluid level sensor. A partition plate is fitted in the lower shell to restrict a flow of hydraulic fluid into and out of the fluid level detecting chamber. The partition plate is disposed near the top end of the shaft of the fluid level sensor to restrict the distance by which the float can move vertically. A filter, the fluid level sensor and the partition plate are all set in the lower shell. The filter and the partition plate having their top ends pressed against the bottom ends of partitioning walls of the upper shell. Thus, the filter and the partition wall are held in position in the tank body between the upper and lower shells.
    Type: Grant
    Filed: July 11, 2005
    Date of Patent: October 18, 2011
    Assignee: Advics Co., Ltd.
    Inventor: Mitsuharu Hayashi
  • Patent number: 7500723
    Abstract: A reservoir tank has an inlet/outlet port communicating with a master cylinder, and a hydraulic fluid supply port provided directly opposite the inlet/outlet port. A tubular portion is provided on the inner surface of the tank. The tubular portion has an internal passage communicating with the inlet/outlet port and having a top opening. A box-shaped member has its bottom plate fitted on the tubular member. The bottom plate is formed of a filter material. A deflector plate is supported on legs extending upwardly form the bottom plate of the box member so as to be disposed right over the top opening of the tubular portion. The deflector plate deflects the flow of hydraulic fluid such that it will not be directed toward the hydraulic fluid supply port, thereby preventing hydraulic fluid from being blown out through the hydraulic fluid supply port even if this port is open.
    Type: Grant
    Filed: March 20, 2007
    Date of Patent: March 10, 2009
    Assignee: Advics Co., Ltd.
    Inventor: Mitsuharu Hayashi
  • Patent number: 7448211
    Abstract: A reservoir tank for a vehicle brake system has a tank body including upper and lower shells joined together along mating surfaces. A float and a fluid level sensor are mounted in a fluid level detecting chamber defined in the tank body. The float is fitted on a shaft of the fluid level sensor. A partition plate is fitted in the lower shell to restrict a flow of hydraulic fluid into and out of the fluid level detecting chamber. The partition plate is disposed near the top end of the shaft of the fluid level sensor to restrict the distance by which the float can move vertically. A filter, the fluid level sensor and the partition plate are all set in the lower shell. The filter and the partition plate having their top ends pressed against the bottom ends of partitioning walls of the upper shell. Thus, the filter and the partition wall are held in position in the tank body between the upper and lower shells.
    Type: Grant
    Filed: June 28, 2005
    Date of Patent: November 11, 2008
    Assignee: Advics Co., Ltd.
    Inventor: Mitsuharu Hayashi
  • Patent number: 7261382
    Abstract: A reservoir tank has an inlet/outlet port communicating with a master cylinder, and a hydraulic fluid supply port provided directly opposite the inlet/outlet port. A tubular portion is provided on the inner surface of the tank. The tubular portion has an internal passage communicating with the inlet/outlet port and having a top opening. A box-shaped member has its bottom plate fitted on the tubular member. The bottom plate is formed of a filter material. A deflector plate is supported on legs extending upwardly form the bottom plate of the box member so as to be disposed right over the top opening of the tubular portion. The deflector plate deflects the flow of hydraulic fluid such that it will not be directed toward the hydraulic fluid supply port, thereby preventing hydraulic fluid from being blown out through the hydraulic fluid supply port even if this port is open.
    Type: Grant
    Filed: September 15, 2004
    Date of Patent: August 28, 2007
    Assignee: Advics Co., Ltd.
    Inventor: Mitsuharu Hayashi
  • Publication number: 20070176487
    Abstract: A reservoir tank has an inlet/outlet port communicating with a master cylinder, and a hydraulic fluid supply port provided directly opposite the inlet/outlet port. A tubular portion is provided on the inner surface of the tank. The tubular portion has an internal passage communicating with the inlet/outlet port and having a top opening. A box-shaped member has its bottom plate fitted on the tubular member. The bottom plate is formed of a filter material. A deflector plate is supported on legs extending upwardly form the bottom plate of the box member so as to be disposed right over the top opening of the tubular portion. The deflector plate deflects the flow of hydraulic fluid such that it will not be directed toward the hydraulic fluid supply port, thereby preventing hydraulic fluid from being blown out through the hydraulic fluid supply port even if this port is open.
    Type: Application
    Filed: March 20, 2007
    Publication date: August 2, 2007
    Inventor: Mitsuharu Hayashi
  • Publication number: 20060017320
    Abstract: A reservoir tank for a vehicle brake system has a tank body including upper and lower shells joined together along mating surfaces. A float and a fluid level sensor are mounted in a fluid level detecting chamber defined in the tank body. The float is fitted on a shaft of the fluid level sensor. A partition plate is fitted in the lower shell to restrict a flow of hydraulic fluid into and out of the fluid level detecting chamber. The partition plate is disposed near the top end of the shaft of the fluid level sensor to restrict the distance by which the float can move vertically. A filter, the fluid level sensor and the partition plate are all set in the lower shell. The filter and the partition plate having their top ends pressed against the bottom ends of partitioning walls of the upper shell. Thus, the filter and the partition wall are held in position in the tank body between the upper and lower shells.
    Type: Application
    Filed: June 28, 2005
    Publication date: January 26, 2006
    Inventor: Mitsuharu Hayashi
  • Publication number: 20060016484
    Abstract: A reservoir tank for a vehicle brake system has a tank body including upper and lower shells joined together along mating surfaces. A float and a fluid level sensor are mounted in a fluid level detecting chamber defined in the tank body. The float is fitted on a shaft of the fluid level sensor. A partition plate is fitted in the lower shell to restrict a flow of hydraulic fluid into and out of the fluid level detecting chamber. The partition plate is disposed near the top end of the shaft of the fluid level sensor to restrict the distance by which the float can move vertically. A filter, the fluid level sensor and the partition plate are all set in the lower shell. The filter and the partition plate having their top ends pressed against the bottom ends of partitioning walls of the upper shell. Thus, the filter and the partition wall are held in position in the tank body between the upper and lower shells.
    Type: Application
    Filed: July 11, 2005
    Publication date: January 26, 2006
    Inventor: Mitsuharu Hayashi
  • Publication number: 20050062343
    Abstract: A reservoir tank has an inlet/outlet port communicating with a master cylinder, and a hydraulic fluid supply port provided directly opposite the inlet/outlet port. A tubular portion is provided on the inner surface of the tank. The tubular portion has an internal passage communicating with the inlet/outlet port and having a top opening. A box-shaped member has its bottom plate fitted on the tubular member. The bottom plate is formed of a filter material. A deflector plate is supported on legs extending upwardly form the bottom plate of the box member so as to be disposed right over the top opening of the tubular portion. The deflector plate deflects the flow of hydraulic fluid such that it will not be directed toward the hydraulic fluid supply port, thereby preventing hydraulic fluid from being blown out through the hydraulic fluid supply port even if this port is open.
    Type: Application
    Filed: September 15, 2004
    Publication date: March 24, 2005
    Inventor: Mitsuharu Hayashi
  • Patent number: 6851720
    Abstract: In a hydraulic joint structure for joining respective tubular joint portions of two members, opposed pressure-contact surfaces of the two members for preventing loosening form a downstream space on the downstream side of a seal member. A passage is formed on the pressure-contact surfaces in such a manner that when working fluid leaks from the upstream side of the seal member to the downstream space via a clearance between the seal member and the tubular joint portions, the passage permits the working fluid to flow from the downstream space to an external space in the state in which the pressure-contact surfaces are in pressure contact. The passage is formed in such a manner that the passage extends in a circumferential direction of the thread portions, and communicates at one end with the downstream space and at the other end with the external space.
    Type: Grant
    Filed: March 25, 2003
    Date of Patent: February 8, 2005
    Assignee: Advics Co., Ltd.
    Inventors: Mitsuharu Hayashi, Kenichi Suzuki, Yuichiro Sakakibara
  • Publication number: 20030178849
    Abstract: In a hydraulic joint structure for joining respective tubular joint portions of two members, opposed pressure-contact surfaces of the two members for preventing loosening form a downstream space on the downstream side of a seal member. A passage is formed on the pressure-contact surfaces in such a manner that when working fluid leaks from the upstream side of the seal member to the downstream space via a clearance between the seal member and the tubular joint portions, the passage permits the working fluid to flow from the downstream space to an external space in the state in which the pressure-contact surfaces are in pressure contact. The passage is formed in such a manner that the passage extends in a circumferential direction of the thread portions, and communicates at one end with the downstream space and at the other end with the external space.
    Type: Application
    Filed: March 25, 2003
    Publication date: September 25, 2003
    Applicant: Advics Co., LTD.
    Inventors: Mitsuharu Hayashi, Kenichi Suzuki, Yuichiro Sakakibara
  • Patent number: 6105611
    Abstract: A reservoir tank includes a main portion and a storage chamber disposed in the main portion for storing operating fluid, with the storage chamber being surrounded by a side wall, a ceiling portion and a bottom portion. A float is disposed in the storage chamber and is adapted to move vertically corresponding to the height of the operating fluid level, and a reed switch is operatively associated with the float so as to operate in accordance with the height of the float. A partition member divides the storage chamber into an upper space and a lower space in which the operating fluid and the float are disposed.
    Type: Grant
    Filed: June 30, 1998
    Date of Patent: August 22, 2000
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventors: Masamoto Ando, Takashi Nagashima, Mitsuharu Hayashi, Hirohisa Kuwana
  • Patent number: 5957545
    Abstract: A master cylinder reservoir for use in an automotive vehicle includes a main body, a reserving chamber formed in the main body for storing operating fluid, a pouring opening provided at one end of the upper portion of the main body to permit introduction of the operating fluid into the reserving chamber, and a blocking device provided in the main body for preventing a leakage of the operating fluid outside the main body via the pouring opening.
    Type: Grant
    Filed: September 2, 1997
    Date of Patent: September 28, 1999
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventors: Masashi Sawada, Mitsuharu Hayashi, Takashi Nagashima, Toshihito Suzuki, Ken Sakakibara
  • Patent number: 4983851
    Abstract: A contact therapeutical apparatus for giving physical treatments such as magnetic and heat therapies by contacting the human body. The apparatus includes a heat generating portion inside a case body, and a far infrared radiating material is contained in the case body or a cover member covering the case body. The far infrared radiating material is exited by heat from the heat generating portion to radiate infrared rays and to heat inside the body sufficiently. There is provided a uniformalizing layer in the case body or cover member for distributing heat uniformly, and the far infrared radiating material is contained in the layer. Thereby, the uniform heating action by the infrared rays is obtained and the body can be warmed over in a wide area.
    Type: Grant
    Filed: November 17, 1988
    Date of Patent: January 8, 1991
    Assignee: Nihonkenkozoshinkenkyukai Co., Ltd.
    Inventors: Isamu Masuda, Mitsuharu Hayashi