Patents by Inventor Hideharu Tanaka

Hideharu Tanaka 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).

  • Muffler for exhaust gas from internal combustion engine
    Patent number: 4700805
    Abstract: A muffler for exhaust gases of an internal combustion engine. The muffler is a hybrid consisting of gas expansion chambers defined by partitions in a muffler casing, and a sound-absorbing body. The sound-absorbing body includes a perforated pipe surrounded by a porous sound-absorbing material with a thin metal film sandwiched therebetween.
    Type: Grant
    Filed: April 16, 1985
    Date of Patent: October 20, 1987
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Hideharu Tanaka, Mutsuo Sekiya, Fusaoki Uchikawa
  • Muffler for exhaust gas from internal combustion engine
    Patent number: 4610329
    Abstract: A muffler for exhaust gases of an internal combustion engine. The muffler is a hybrid consisting of gas expansion chambers defined by partitions in a muffler casing, and a sound-absorbing body. The sound-absorbing body includes a perforated pipe surrounded by a porous sound-absorbing material with a thin metal film sandwiched therebetween.
    Type: Grant
    Filed: April 16, 1985
    Date of Patent: September 9, 1986
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Hideharu Tanaka, Mutsuo Sekiya, Fusaoki Uchikawa
  • Muffler for exhaust gas from an internal combustion engine
    Patent number: 4607722
    Abstract: A muffler of the absorption type for the exhaust gas of an internal combustion engine including a fibrous sound-absorbing body, and a film of paint on the inner surface of the fibrous body. The film prevents clogging of the pores in the porous body and enables the absorption of the sound in a wide frequency range.
    Type: Grant
    Filed: March 1, 1985
    Date of Patent: August 26, 1986
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Hideharu Tanaka, Matsuo Sekiya, Fusoaki Uchikawa
  • Muffler for exhaust gas from an internal combustion engine
    Patent number: 4607721
    Abstract: A muffler of the absorption type for the exhaust gas of an internal combustion engine including a cylindrical porous sound-absorbing body 1, and a film 5 of the metal or other material formed cylindrically on the inner surface of the porous body 1. The film prevents clogging of the pores in the porous body and enables the absorption of the sound in a wide frequency range.
    Type: Grant
    Filed: April 8, 1985
    Date of Patent: August 26, 1986
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Hideharu Tanaka, Matsuo Sekiya, Fusaoki Uchikawa
  • Muffler for exhaust gas from an internal combustion engine
    Patent number: 4523662
    Abstract: A muffler of the absorption type for the exhaust gas of an internal combustion engine including a cylindrical porous sound-absorbing body 1, and a film 5 of a metal or other material formed cylindrically on the inner surface of the porous body 1. The film prevents clogging of the pores in the porous body and enables the absorption of the sound in a wide frequency range.
    Type: Grant
    Filed: July 5, 1983
    Date of Patent: June 18, 1985
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Hideharu Tanaka, Mutsuo Sekiya, Fusaoki Uchikawa
  • Horizontal rotary compressor with oil forced by gas discharge into crankshaft bore
    Patent number: 4472121
    Abstract: A horizontal rotary type compressor having a rotary compression unit hermetically contained in a closed shell has its lubricating parts effectively lubricated by lubricant oil being fed to the central lubrication bore formed axially in the crankshaft through a lubricant oil feed tube which is opened at one end within the lubricant oil accumulated on the bottom of the closed shell and adapted to be intermittently subjected to the refrigerant gas discharged from the compression unit.
    Type: Grant
    Filed: December 8, 1981
    Date of Patent: September 18, 1984
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Hideharu Tanaka, Koji Ishijima, Toshihide Koda
  • Muffler for internal combustion engine
    Patent number: 4444288
    Abstract: A muffler for an internal combustion engine comprises an air inlet passage in a casing of said muffler in a hollow surrounded by an inner wall of said casing and an outer wall of a porous sound absorber which is held in said casing.
    Type: Grant
    Filed: December 21, 1981
    Date of Patent: April 24, 1984
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Mutuo Sekiya, Hideharu Tanaka, Fusaoki Uchikawa, Yasufumi Ohata
  • Horizontal rotary compressor with oil forced by gas discharge into crankshaft bore
    Patent number: 4391573
    Abstract: A horizontal rotary type compressor having a rotary compression unit hermetically contained in a closed shell has its lubricating parts effectively lubricated with the lubricating parts effectively lubricated with the lubricant oil being fed to the central lubrication bore formed axially in the crankshaft through a lubricant oil feed tube which is opened at one end within the lubricant oil accumulated on the bottom of the closed shell and adapted to be intermittently subjected to the refrigerant gas discharged from the compression unit.
    Type: Grant
    Filed: August 25, 1981
    Date of Patent: July 5, 1983
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Hideharu Tanaka, Koji Ishijima, Toshihide Koda
  • Sound absorber
    Patent number: 4371581
    Abstract: A sound absorber comprises a layer of a composition of a heat resistant binder and a low temperature oxidizing catalyst which is coated on a porous metal substrate in the hardened form.
    Type: Grant
    Filed: September 9, 1981
    Date of Patent: February 1, 1983
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Fusaoki Uchikawa, Hideharu Tanaka, Mutsuo Sekiya, Yasufumi Ohata
  • Horizontal rotary compressor with oil forced by gas discharge into crankshaft bore
    Patent number: 4355963
    Abstract: A horizontal rotary type compressor having a rotary compression unit hermetically contained in a closed shell has its lubricating parts effectively lubricated with the lubricating parts effectively lubricated with the lubricant oil being fed to the central lubrication bore formed axially in the crankshaft through a lubricant oil feed tube which is opened at one end within the lubricant oil accumulated on the bottom of the closed shell and adapted to be intermittently subjected to the refrigerant gas discharged from the compression unit.
    Type: Grant
    Filed: December 4, 1979
    Date of Patent: October 26, 1982
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Hideharu Tanaka, Koji Ishijima, Toshihide Koda
  • Sound absorber
    Patent number: 4352853
    Abstract: A sound absorber comprises a layer of a composition of a heat resistant binder and an acidic solid catalyst which is coated on a porous metal substrate in the hardened form.
    Type: Grant
    Filed: September 9, 1981
    Date of Patent: October 5, 1982
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Fusaoki Uchikawa, Hideharu Tanaka, Mutsuo Sekiya, Yasufumi Ohata