Patents by Inventor Kiyoshi Nagashima

Kiyoshi Nagashima 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).

  • Dust removing apparatus
    Patent number: 5603742
    Abstract: A dust removing apparatus includes a filter and mounting frame which prevent leakage of dirty gas and improve the collection factor of soot dust even if dirty gas of a high temperature is subjected to a dust removing operation. The apparatus includes a filter element held in a filter element mounting frame, wherein a flange is disposed on an end of the filter element located on the side which receives dirty gas, and wherein the side of the flange opposite the dirty gas side is pressed against a flange of the filter element mounting frame. A seal packing is disposed between the filter flange and frame flange to seal the elements. Further, a plurality of honeycomb filter elements structured as above may be collected and accommodated to form a honeycomb pack.
    Type: Grant
    Filed: January 27, 1995
    Date of Patent: February 18, 1997
    Assignees: Mitsubishi Jukogyo Kabushiki Kaisha, NGK Insulators, Ltd.
    Inventors: Kiyoshi Nagashima, Tetsuya Ueda, Hisataka Urakata, Tetsuya Fujino, Yuichiro Kitagawa, Satoshi Uchida, Yasuo Akitu, Yosiaki Hori
  • Dust removing apparatus
    Patent number: 5518513
    Abstract: A dust removing apparatus suppresses pressure and temperature variations of cleaned gas to facilitate the removal of dust. A clean gas chamber delimited by a plurality of porous ceramic tubular filter elements is divided in two by a partition wall. The respective chambers are connected through discrete outlet pipes to a clean gas main pipe, and backwashing devices are provided in the respective outlet pipes. Furthermore, a porous ceramics filter element is provided on a bottom partition plate so that the gas flow velocity in the tubular filter elements can be insured to prevent dust from adhering thereto.
    Type: Grant
    Filed: September 16, 1994
    Date of Patent: May 21, 1996
    Assignee: Mitsubishi Jukogyo Kabushiki Kaisha
    Inventors: Atsumasa Iwanaga, Kiyoshi Nagashima, Tetsuya Ueda, Hisataka Urakata, Tetsuya Fujino
  • Laminated core of rotating electric machine
    Patent number: 5457350
    Abstract: A laminated core for a rotating electric machine comprising a plurality of single sheet cores, each single-sheet core being formed by arranging a plurality of salient poles continuously on a beltlike yoke plate and winding the beltlike yoke plate so as to be cylindrical while joining both ends of the beltlike yoke plate, wherein the laminated core is cylindrical and has a plurality of salient poles confronting a magnet, each salient pole having a winding and the laminated core is formed by laminating a plurality of the single-sheet cores.
    Type: Grant
    Filed: July 28, 1993
    Date of Patent: October 10, 1995
    Assignee: Kabushiki Kaisha Sankyo Seiki Seisakusho
    Inventors: Hirotaka Sakamaki, Masayuki Ishikawa, Hidetoshi Shimada, Shizunori Mitsuma, Hiroshi Zenisawa, Kiyoshi Nagashima, Noboru Takarasawa
  • Apparatus for recovering heat from exhaust gases of marine prime movers
    Patent number: 4214450
    Abstract: An apparatus for recovering heat from the exhaust gases of marine prime movers of the kind including an exhaust gas economizer for effecting heat exchange between the exhaust gas discharged from the prime mover and feed water supplied under pressure from a feed water tank.
    Type: Grant
    Filed: March 14, 1978
    Date of Patent: July 29, 1980
    Assignee: Mitsubishi Jukogyo Kabushiki Kaisha
    Inventors: Kiyoshi Nagashima, Tsugutoshi Yamada