Patents by Inventor Toshihiko Kitazawa

Toshihiko Kitazawa 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: 10107186
    Abstract: An actuator power transmission mechanism includes: a first lever that rotates by power of an actuator; a drive shaft that has one end fixed to the first lever and rotates integrally with the first lever; one or more nozzle vanes that are directly or indirectly coupled to the other end side of the drive shaft, rotate interlocking with the drive shaft, and adjust an inclination angle with respect to a flow direction of a fluid; and a bearing that has an insertion hole through which the drive shaft is inserted, and that rotatably supports the drive shaft, and a suppression portion that suppresses infiltration of water that runs along an outer peripheral surface of the bearing into the insertion hole is provided at the outer peripheral surface of the bearing.
    Type: Grant
    Filed: September 17, 2015
    Date of Patent: October 23, 2018
    Assignee: IHI Corporation
    Inventors: Kuniaki Iizuka, Masatoshi Eguchi, Yasushi Asada, Osamu Kagimoto, Masashige Takahashi, Hideumi Ohkuma, Yohei Suruga, Suguru Katayama, Toshihiko Kitazawa
  • Patent number: 9903379
    Abstract: An inner surface of each first supporting hole of a shroud ring has on both sides in the axial direction of a turbine impeller two first bearing portions by which first nozzle shaft is rotatably supported. An inner surface of each second supporting hole of a nozzle ring has a second bearing portion by which a second nozzle shaft is rotatably supported. The fitting clearance between the second bearing portion and the second nozzle shaft is set larger than the fitting clearance between each of the first bearing portions and the first nozzle shaft.
    Type: Grant
    Filed: January 5, 2015
    Date of Patent: February 27, 2018
    Assignee: IHI CORPORATION
    Inventors: Kuniaki Iizuka, Yoshinari Yoshida, Yasushi Asada, Osamu Kagimoto, Hideumi Ohkuma, Yohei Suruga, Toshihiko Kitazawa
  • Patent number: 9879687
    Abstract: A reservoir groove for storing condensate water is formed on a lower part side of a link chamber inside a turbine housing. The reservoir groove is formed such that, assuming that water vapor contained in an exhaust gas retained inside the link chamber is completely condensed and liquefied after an engine stops its operation, a height position of a reference water surface of the condensate water stored in a reservoir area, which includes a space inside the reservoir groove in the link chamber, is lower than a height position of a lowermost part of the link mechanism.
    Type: Grant
    Filed: January 2, 2015
    Date of Patent: January 30, 2018
    Assignee: IHI Corporation
    Inventors: Kuniaki Iizuka, Yoshinari Yoshida, Yasushi Asada, Osamu Kagimoto, Hideumi Ohkuma, Yohei Suruga, Suguru Katayama, Toshihiko Kitazawa
  • Patent number: 9739311
    Abstract: A shaft includes: two large-diameter portions; and a small-diameter portion formed between the two large-diameter portions. A bearing includes: an annular body in which to insert the shaft; two bearing surfaces being opposite the large-diameter portions; and an intervening surface located between the two bearing surfaces on an inner circumferential surface of the body, and being opposite the small-diameter portion with a clearance formed between the intervening surface and the small-diameter portion. No anti-corrosion treatment is applied to the large-diameter portions. An anti-corrosion treatment is applied to at least any one of: an exposed portion of an outer peripheral surface of the body of the bearing, which is exposed to the outside of the housing; the intervening surface of the bearing; an opposite end surface of the bearing; and the small-diameter portion of the shaft.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: August 22, 2017
    Assignee: IHI Corporation
    Inventors: Kuniaki Iizuka, Toshihiko Kitazawa, Masatoshi Eguchi, Yasushi Asada, Osamu Kagimoto, Kenji Ishikawa, Masashige Takahashi, Yohei Suruga, Suguru Katayama, Asako Yasui
  • Patent number: 9709094
    Abstract: A shaft includes: two large-diameter portions; and a small-diameter portion formed between the two large-diameter portions. A bearing includes: an annular body in which to insert the shaft; two bearing surfaces being opposite the large-diameter portions; and an intervening surface located between the two bearing surfaces on an inner circumferential surface of the body, and being opposite the small-diameter portion with a clearance formed between the intervening surface and the small-diameter portion. No anti-corrosion treatment is applied to the large-diameter portions. An anti-corrosion treatment is applied to at least any one of: an exposed portion of an outer peripheral surface of the body of the bearing, which is exposed to the outside of the housing; the intervening surface of the bearing; an opposite end surface of the bearing; and the small-diameter portion of the shaft.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: July 18, 2017
    Assignee: IHI Corporation
    Inventors: Kuniaki Iizuka, Toshihiko Kitazawa, Masatoshi Eguchi, Yasushi Asada, Osamu Kagimoto, Kenji Ishikawa, Masashige Takahashi, Yohei Suruga, Suguru Katayama, Asako Yasui
  • Publication number: 20160003138
    Abstract: An actuator power transmission mechanism includes: a first lever that rotates by power of an actuator; a drive shaft that has one end fixed to the first lever and rotates integrally with the first lever; one or more nozzle vanes that are directly or indirectly coupled to the other end side of the drive shaft, rotate interlocking with the drive shaft, and adjust an inclination angle with respect to a flow direction of a fluid; and a bearing that has an insertion hole through which the drive shaft is inserted, and that rotatably supports the drive shaft, and a suppression portion that suppresses infiltration of water that runs along an outer peripheral surface of the bearing into the insertion hole is provided at the outer peripheral surface of the bearing.
    Type: Application
    Filed: September 17, 2015
    Publication date: January 7, 2016
    Applicant: IHI Corporation
    Inventors: Kuniaki IIZUKA, Masatoshi EGUCHI, Yasushi ASADA, Osamu KAGIMOTO, Masashige TAKAHASHI, Hideumi OHKUMA, Yohei SURUGA, Suguru KATAYAMA, Toshihiko KITAZAWA
  • Publication number: 20150184541
    Abstract: A shaft includes: two large-diameter portions; and a small-diameter portion formed between the two large-diameter portions. A bearing includes: an annular body in which to insert the shaft; two bearing surfaces being opposite the large-diameter portions; and an intervening surface located between the two bearing surfaces on an inner circumferential surface of the body, and being opposite the small-diameter portion with a clearance formed between the intervening surface and the small-diameter portion. No anti-corrosion treatment is applied to the large-diameter portions. An anti-corrosion treatment is applied to at least any one of: an exposed portion of an outer peripheral surface of the body of the bearing, which is exposed to the outside of the housing; the intervening surface of the bearing; an opposite end surface of the bearing; and the small-diameter portion of the shaft.
    Type: Application
    Filed: December 12, 2014
    Publication date: July 2, 2015
    Applicant: IHI Corporation
    Inventors: Kuniaki Iizuka, Toshihiko Kitazawa, Masatoshi Eguchi, Yasushi Asada, Osamu Kagimoto, Kenji Ishikawa, Masashige Takahashi, Yohei Suruga, Suguru Katayama, Asako Yasui
  • Publication number: 20150122233
    Abstract: A reservoir groove for storing condensate water is formed on a lower part side of a link chamber inside a turbine housing. The reservoir groove is formed such that, assuming that water vapor contained in an exhaust gas retained inside the link chamber is completely condensed and liquefied after an engine stops its operation, a height position of a reference water surface of the condensate water stored in a reservoir area, which includes a space inside the reservoir groove in the link chamber, is lower than a height position of a lowermost part of the link mechanism.
    Type: Application
    Filed: January 2, 2015
    Publication date: May 7, 2015
    Applicant: IHI Corporation
    Inventors: Kuniaki IIZUKA, Yoshinari YOSHIDA, Yasushi ASADA, Osamu KAGIMOTO, Hideumi OHKUMA, Yohei SURUGA, Suguru KATAYAMA, Toshihiko KITAZAWA
  • Publication number: 20150110607
    Abstract: An inner surface of each first supporting hole of a shroud ring has on both sides in the axial direction of a turbine impeller two first bearing portions by which first nozzle shaft is rotatably supported. An inner surface of each second supporting hole of a nozzle ring has a second bearing portion by which a second nozzle shaft is rotatably supported. The fitting clearance between the second bearing portion and the second nozzle shaft is set larger than the fitting clearance between each of the first bearing portions and the first nozzle shaft.
    Type: Application
    Filed: January 5, 2015
    Publication date: April 23, 2015
    Applicant: IHI Corporation
    Inventors: Kuniaki IIZUKA, Yoshinari YOSHIDA, Yasushi ASADA, Osamu KAGIMOTO, Hideumi OHKUMA, Yohei SURUGA, Toshihiko KITAZAWA
  • Patent number: 8891937
    Abstract: A method and apparatus for generating an encoded data stream representing a number of pictures or frames and having a number of layers including a picture layer in which time code information attached to the original data is described or inserted therein for each picture. Such time code information may be inserted into a user data area of the picture layer of the encoded data stream.
    Type: Grant
    Filed: November 30, 2006
    Date of Patent: November 18, 2014
    Assignee: Sony Corporation
    Inventors: Kazuyasu Imahashi, Toshihiko Kitazawa
  • Patent number: 7209636
    Abstract: A method and apparatus for generating an encoded data stream representing a number of pictures or frames and having a number of layers including a picture layer in which time code information attached to the original data is described or inserted therein for each picture. Such time code information may be inserted into a user data area of the picture layer of the encoded data stream.
    Type: Grant
    Filed: June 17, 2003
    Date of Patent: April 24, 2007
    Assignee: Sony Corporation
    Inventors: Kazuyasu Imahashi, Toshihiko Kitazawa
  • Publication number: 20070076798
    Abstract: A method and apparatus for generating an encoded data stream representing a number of pictures or frames and having a number of layers including a picture layer in which time code information attached to the original data is described or inserted therein for each picture. Such time code information may be inserted into a user data area of the picture layer of the encoded data stream.
    Type: Application
    Filed: November 30, 2006
    Publication date: April 5, 2007
    Inventors: Kazuyasu Imahashi, Toshihiko Kitazawa
  • Patent number: 6987739
    Abstract: The present invention makes it possible to efficiently transmit data for statistical multiplexing which is required for control using statistical multiplexing. By utilizing private packets, respective encoding devices transmit encoding difficulties serving as the data for statistical multiplexing to a multiplexer (4) via the same transmission channels as encoded video data and audio data are transmitted. The multiplexer (4) conducts multiplexing processing on data supplied from the respective encoding devices at a first rate R1 larger than a transmission rate on a transmission channel of a subsequent stage, and outputs a transport stream (TSd) including the private packets to a statistical multiplexing computer.
    Type: Grant
    Filed: August 9, 2004
    Date of Patent: January 17, 2006
    Assignee: Sony Corporation
    Inventors: Toshihiko Kitazawa, Takao Suzuki, Hiroaki Seto, Yoichi Matsumura
  • Patent number: 6845107
    Abstract: The present invention makes it possible to efficiently transmit data for statistical multiplexing which is required for control using statistical multiplexing. By utilizing private packets, respective encoding devices transmit encoding difficulties serving as the data for statistical multiplexing to a multiplexer (4) via the same transmission channels as encoded video data and audio data are transmitted. The multiplexer (4) conducts multiplexing processing on data supplied from the respective encoding devices at a first rate R1 larger than a transmission rate on a transmission channel of a subsequent stage, and outputs a transport stream (TSd including the private packets to a statistical multiplexing computer.
    Type: Grant
    Filed: October 15, 1998
    Date of Patent: January 18, 2005
    Assignee: Sony Corporation
    Inventors: Toshihiko Kitazawa, Takao Suzuki, Hiroaki Seto, Yoichi Matsumura
  • Publication number: 20050010960
    Abstract: The present invention makes it possible to efficiently transmit data for statistical multiplexing which is required for control using statistical multiplexing. By utilizing private packets, respective encoding devices transmit encoding difficulties serving as the data for statistical multiplexing to a multiplexer (4) via the same transmission channels as encoded video data and audio data are transmitted. The multiplexer (4) conducts multiplexing processing on data supplied from the respective encoding devices at a first rate R1 larger than a transmission rate on a transmission channel of a subsequent stage, and outputs a transport stream (TSd) including the private packets to a statistical multiplexing computer.
    Type: Application
    Filed: August 9, 2004
    Publication date: January 13, 2005
    Inventors: Toshihiko Kitazawa, Takao Suzuki, Hiroaki Seto, Yoichi Matsumura
  • Publication number: 20030215215
    Abstract: A method and apparatus for generating an encoded data stream representing a number of pictures or frames and having a number of layers including a picture layer in which time code information attached to the original data is described or inserted therein for each picture. Such time code information may be inserted into a user data area of the picture layer of the encoded data stream.
    Type: Application
    Filed: June 17, 2003
    Publication date: November 20, 2003
    Applicant: SONY CORPORATION
    Inventors: Kazuyasu Imahashi, Toshihiko Kitazawa
  • Patent number: 6594439
    Abstract: A method and apparatus for generating an encoded data stream representing a number of pictures or frames and having a number of layers including a picture layer in which time code information attached to the original data is described or inserted therein for each picture. Such time code information may be inserted into a user data area of the picture layer of the encoded data stream.
    Type: Grant
    Filed: August 8, 2001
    Date of Patent: July 15, 2003
    Assignee: Sony Corporation
    Inventors: Kazuyasu Imahashi, Toshihiko Kitazawa
  • Patent number: 6453112
    Abstract: A method and apparatus for generating an encoded data stream representing a number of pictures or frames and having a number of layers including a picture layer in which time code information attached to the original data is described or inserted therein for each picture. Such time code information may be inserted into a user data area of the picture layer of the encoded data stream.
    Type: Grant
    Filed: December 11, 2000
    Date of Patent: September 17, 2002
    Assignee: Sony Corporation
    Inventors: Kazuyasu Imahashi, Toshihiko Kitazawa
  • Patent number: 6438317
    Abstract: A method and apparatus for generating an encoded data stream representing a number of pictures or frames and having a number of layers including a picture layer in which time code information attached to the original data is described or inserted therein for each picture. Such time code information may be inserted into a user data area of the picture layer of the encoded data stream.
    Type: Grant
    Filed: May 24, 1999
    Date of Patent: August 20, 2002
    Assignee: Sony Corporation
    Inventors: Kazuyasu Imahashi, Toshihiko Kitazawa
  • Publication number: 20010048803
    Abstract: A method and apparatus for generating an encoded data stream representing a number of pictures or frames and having a number of layers including a picture layer in which time code information attached to the original data is described or inserted therein for each picture. Such time code information may be inserted into a user data area of the picture layer of the encoded data stream.
    Type: Application
    Filed: August 8, 2001
    Publication date: December 6, 2001
    Applicant: SONY CORPORATION
    Inventors: Kazuyasu Imahashi, Toshihiko Kitazawa