Patents by Inventor Yukitoshi Okubo

Yukitoshi Okubo 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: 5866003
    Abstract: An apparatus for degrading a pollutant to purify a medium containing a pollutant using a microorganism, which comprises a container in which a region containing a microorganism capable of degrading the pollutant is provided, wherein the container has the first opening for introducing the medium into the container and the second opening for draining the medium passed through the region containing the microorganism from the container, and in the container a region containing a functional material which releases a material required for degrading the pollutant by the microorganism is provided between the first opening and the region containing microorganism.
    Type: Grant
    Filed: April 10, 1997
    Date of Patent: February 2, 1999
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yukitoshi Okubo, Toshiyuki Komatsu, Kazumi Tanaka, Masanori Sakuranaga, Yuji Kawabata
  • Patent number: 5480596
    Abstract: An apparatus and method for producing an optical recording medium or an optical recording medium substrate sheet forms an photo-curable resin layer on at least one of a substrate sheet and a stamper which undergoes elastic deformation. The stamper bears a pattern corresponding with preformatting information and is brought into close contact with the substrate sheet wherein the photo-curable resin layer is interposed between them and cured.
    Type: Grant
    Filed: November 21, 1994
    Date of Patent: January 2, 1996
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yukitoshi Okubo, Tsuyoshi Santoh, Miki Tamura, Chieko Mihara, Hiroyuki Sugata, Osamu Kanome, Masataka Yashima
  • Patent number: 5328816
    Abstract: A process for producing an information recording medium comprising a substrate and provided thereon a recording layer and protective layer comprises the steps of forming on one substrate sheet a plurality of grooved preformats used for information recording mediums, forming a recording layer on the substrate sheet having thereon said plurality of grooved preformats, forming a protective layer on the substrate sheet on which said recording layer has been formed, and cutting the resulting substrate sheet into individual information recording mediums.
    Type: Grant
    Filed: July 9, 1992
    Date of Patent: July 12, 1994
    Assignee: Canon Kabushiki Kaisha
    Inventors: Miki Tamura, Hiroyuki Sugata, Osamu Kanome, Yukitoshi Okubo, Mizuho Hiraoka, Masataka Yashima
  • Patent number: 4761058
    Abstract: A display apparatus comprises a first substrate provided with a thin film transistor array as a driving switching element and a second substrate provided with another electrode, and produces a display by electro-optical change generated between these substrates. Visibility of the display is improved in such a way that rays of light incident on the display apparatus are converted into diffusion light. Photoconductive material, in particular amorphous silicon, can be used by covering semiconductive portions of the thin film transistor array of the display apparatus with an intercepting member. In a display apparatus using a thin film transistor array as a driving switching element, a conductive surface electrically insulated from gate lines on a substrate on where the gate lines for the thin film transistor array are formed, such conductive surface acts as a counter electrode of capacitors for storing charge.
    Type: Grant
    Filed: December 23, 1985
    Date of Patent: August 2, 1988
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yukitoshi Okubo, Yoshiyuki Osada, Masao Sugata, Katsunori Hatanaka, Takashi Nakagiri
  • Patent number: 4472027
    Abstract: A method for orienting a liquid crystal comprises bringing a liquid crystal into contact with a heat treated surface of an electrode substrate provided with a film formed by coating a silane compound having alkoxy and an organic residue having at least a fluorine-substituted hydrocarbon residue, the heat treatment being effected under vacuum or under the conditions that the heating temperature and the treating time are within the region of a triangle having the vertexes at (1.75, 0), (2.5, 0) and (1.75, 3.7) in a coordinate with 1000 x (x being the reciprocal of absolute temperature) on the abscissa and ln k' on the ordinate where k' is the ratio of 300 min. to the treating time (min.).Liquid crystal display devices utilize the electrode substrate thus treated.
    Type: Grant
    Filed: December 14, 1981
    Date of Patent: September 18, 1984
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yukitoshi Okubo, Yoshiyuki Osada, Masao Sugata, Takashi Nakagiri
  • Patent number: 4470667
    Abstract: A display apparatus comprises a first substrate provided with a thin film transistor array as a driving switching element and a second substrate provided with another electrode, and produces a display by electro-optical change generated between these substrates. Visibility of the display is improved in such a way that rays of light incident on the display apparatus are converted into diffusion light. Photoconductive material, in particular amorphous silicon, can be used by covering semiconductive portions of the thin film transistor array of the display apparatus with an intercepting member. In a display apparatus using a thin film transistor array as a driving switching element, a conductive surface electrically insulated from gate lines on a substrate on where the gate lines for the thin film transistor array are formed, such conductive surface acts as a counter electrode of capacitors for storing charge.
    Type: Grant
    Filed: October 31, 1983
    Date of Patent: September 11, 1984
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yukitoshi Okubo, Yoshiyuki Osada, Masao Sugata, Katsunori Hatanaka, Takashi Nakagiri
  • Patent number: 4448491
    Abstract: This invention is concerned with an image display apparatus comprising a component capable of image display by an applied voltage sandwiched between a substrate having a driving semiconductor array and a substrate having an electrode film, the substrates facing each other.A space member, a light intercepting member, or a member functioning as both a spacer member and a light intercepting member is disposed on a non-image display portion of the apparatus. Or at least one of the substrate having the electrode film is provided with an overcoating layer and an undercoating layer.
    Type: Grant
    Filed: August 5, 1980
    Date of Patent: May 15, 1984
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yukitoshi Okubo
  • Patent number: 4431271
    Abstract: In an image display device an electrode of a storage condenser is composed of a drain electrode while the other electrode of said condenser is composed of a gate line of substantially the same width as that of said drain electrode and is provided across an insulating layer or of another conductive layer provided on a substrate across an insulating layer. The drain electrode constituting an electrode of the accumulating condenser may also be so positioned as to bridge two adjacent gate lines provided across an insulating layer and a semiconductor layer thereby forming the storage condenser.
    Type: Grant
    Filed: August 28, 1980
    Date of Patent: February 14, 1984
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yukitoshi Okubo
  • Patent number: RE35275
    Abstract: A display apparatus comprises a first substrate provided with a thin film transistor array as a driving switching element and a second substrate provided with another electrode, and produces a display by electro-optical change generated between these substrates. Visibility of the display is improved in such a way that rays of light incident on the display apparatus are converted into diffusion light. Photoconductive material, in particular amorphous silicon, can be used by covering a semiconductive portions of the thin film transistor array of the display apparatus with an intercepting member. In a display apparatus using a thin film transistor array as a driving switching element, a conductive surface electrically insulated from gate lines on a substrate on which the gate lines for the thin film transistor array are formed, such conductive surface acts as a counter electrode of capacitors for storing charge.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: June 18, 1996
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yukitoshi Okubo, Yoshiyuki Osada, Masao Sugata, Katsunori Hatanaka, Takashi Nakagiri
  • Patent number: RE36161
    Abstract: A display apparatus comprises a first substrate provided with a thin film transistor array as a driving switching element and a second substrate provided with another electrode, and produces a display by electro-optical change generated between these substrates. Visibility of the display is improved in such a way that rays of light incident on the display apparatus are converted into diffusion light. Photoconductive material, in particular amorphous silicon, can be used by covering semiconductive portions of the thin film transistor array of the display apparatus with an intercepting member. In a display apparatus using a thin film transistor array as a driving switching element, a conductive surface electrically insulated from gate lines on a substrate on where the gate lines for the thin film transistor array are formed, such conductive surface acts as a counter electrode of capacitors for storing charge.
    Type: Grant
    Filed: July 7, 1997
    Date of Patent: March 23, 1999
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yukitoshi Okubo, Yoshiyuki Osada, Masao Sugata, Katsunori Hatanaka, Takashi Nakagiri