Patents by Inventor Nobutaka Ukigaya

Nobutaka Ukigaya 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).

  • Publication number: 20110239941
    Abstract: Provided is an evaporation apparatus which reduces deformation of a mask, improves adhesion between a substrate and an evaporation mask, and improves accuracy of dividing a region on which a film is to be formed and a region on which the film is not to be formed. The evaporation apparatus includes a pressing mechanism for pressing a film forming substrate disposed on an evaporation mask including a magnetic material against the evaporation mask. The pressing mechanism includes a magnet for attracting the mask toward at least a corner portion of the film forming substrate.
    Type: Application
    Filed: March 29, 2011
    Publication date: October 6, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Yoshiyuki Nakagawa, Masanori Yoshida, Masamichi Masuda, Junji Ohyama, Akio Koganei, Naotoshi Miyamachi, Hirohito Yamaguchi, Tetsuya Karaki, Nobutaka Ukigaya, Toshiaki Yoshikawa
  • Patent number: 7985969
    Abstract: A field-effect transistor including an electrically conductive substrate; a first insulating film coating the electrically conductive substrate; a gate electrode disposed on the electrically conductive substrate with the first insulating film interposed therebetween; a source electrode; a drain electrode opposing the source electrode with the channel therebetween; a second insulating film covering the gate electrode; and a semiconductor layer having a width larger than a width of the gate electrode in the channel width direction and being partly provided on the gate electrode with the second insulating film interposed therebetween so that the gate electrode, the second insulating film, and the semiconductor layer are laminated in the channel.
    Type: Grant
    Filed: February 4, 2009
    Date of Patent: July 26, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hideki Yoshinaga, Hideo Mori, Nobutaka Ukigaya, Nozomu Izumi
  • Patent number: 7959971
    Abstract: When a multiple-panel forming process for producing a plurality of panels on a large-size substrate is employed, when production thereof is continued over a long period, or in other cases, a predetermined film thickness distribution can be stably obtained according to a method of the present invention. Vapor deposition on a substrate is performed by evaporating particles from a vapor deposition source arranged opposite to the substrate in a vacuum chamber. By changing a distance between the substrate and an opening provided at the vapor deposition source by a vapor deposition source position control mechanism, change with elapse of time in the film thickness distribution of a thin film formed on the substrate is controlled.
    Type: Grant
    Filed: March 27, 2007
    Date of Patent: June 14, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventor: Nobutaka Ukigaya
  • Publication number: 20100173067
    Abstract: An apparatus includes a holding mechanism that holds a substrate, a material container where a film-forming material is gasified, a release port for releasing the gasified film-forming material toward the substrate; a material container heating unit for heating the material container, a transport pipe that is detachably linked to the material container by a linking portion and serves to transport the gasified film-forming material from the material container to the release port, a transport pipe heating unit for heating a remaining zone of the transport pipe other than a portion in a vicinity of the linking portion, and a linking portion heating unit that is disposed independently from the transport pipe heating unit and serves for heating the portion of the transport pipe in the vicinity of the linking portion.
    Type: Application
    Filed: January 5, 2010
    Publication date: July 8, 2010
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Nobutaka Ukigaya, Kiyoshi Kuramochi, Takahide Onuma
  • Patent number: 7733323
    Abstract: A reflective display apparatus that creates a display by moving particles includes a front substrate and a back substrate, a plurality of colored charged particles and an insulated liquid sandwiched between the front substrate and back substrate. A reflective first electrode and a second electrode are placed on the back substrate, and a support member is provided to keep a distance between the front substrate and the back substrate. A first portion of an area of the first electrode which borders on the second electrode is covered by a colored layer, which color is the same as the color of the charged particles.
    Type: Grant
    Filed: April 21, 2004
    Date of Patent: June 8, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takeshi Togano, Tsutomu Ikeda, Nobutaka Ukigaya
  • Patent number: 7691248
    Abstract: A system (apparatus and process) for producing an electrophoretic (display) device is provided for allowing production of such a device wherein electrophoretic particles in the dispersion liquid are easily and evenly distributed to respective cells (pixels) between two substrates of the device even in the case of a very small gap between the two substrates or the case of using a flexible substrate. The system includes a storage unit for a dispersion liquid containing the charged phoretic particles dispersed therein, a stiffer for stirring the dispersion liquid, a substrate-holder for holding the substrate in the dispersion liquid, and a voltage source for applying a voltage to the electrodes formed on the substrate thereby depositing the electrophoretic particles on the electrodes.
    Type: Grant
    Filed: February 22, 2005
    Date of Patent: April 6, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tsutomu Ikeda, Nobutaka Ukigaya
  • Publication number: 20100078113
    Abstract: A method for depositing a film includes preparing a deposition material that is purified by sublimation, solidifying the purified deposition material in an environment having a reduced water content, conveying the solidified deposition material into a film deposition chamber through an environment having a reduced water content, and depositing a film of the solidified deposition material onto a substrate in the film deposition chamber.
    Type: Application
    Filed: September 29, 2009
    Publication date: April 1, 2010
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Tomokazu Sushihara, Nobutaka Ukigaya
  • Patent number: 7550308
    Abstract: A field-effect transistor including an electrically conductive substrate; a first insulating film coating the electrically conductive substrate; a gate electrode disposed on the electrically conductive substrate with the first insulating film interposed therebetween; a source electrode; a drain electrode opposing the source electrode with the channel therebetween; a second insulating film covering the gate electrode; and a semiconductor layer having a width larger than a width of the gate electrode in the channel width direction and being partly provided on the gate electrode with the second insulating film interposed therebetween so that the gate electrode, the second insulating film, and the semiconductor layer are laminated in the channel.
    Type: Grant
    Filed: May 26, 2006
    Date of Patent: June 23, 2009
    Assignee: Canan Kabushiki Kaisha
    Inventors: Hideki Yoshinaga, Hideo Mori, Nobutaka Ukigaya, Nozomu Izumi
  • Publication number: 20090140258
    Abstract: A field-effect transistor including an electrically conductive substrate; a first insulating film coating the electrically conductive substrate; a gate electrode disposed on the electrically conductive substrate with the first insulating film interposed therebetween; a source electrode; a drain electrode opposing the source electrode with the channel therebetween; a second insulating film covering the gate electrode; and a semiconductor layer having a width larger than a width of the gate electrode in the channel width direction and being partly provided on the gate electrode with the second insulating film interposed therebetween so that the gate electrode, the second insulating film, and the semiconductor layer are laminated in the channel.
    Type: Application
    Filed: February 4, 2009
    Publication date: June 4, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Hideki Yoshinaga, Hideo Mori, Nobutaka Ukigaya, Nozomu Izumi
  • Publication number: 20090061084
    Abstract: In a vapor deposition method of forming a film of an organic compound on a substrate, a material containing portion filled with a vapor deposition material is heated, to thereby evaporate or sublimate the vapor deposition material and discharge the vapor deposition material to a film formation space of a vacuum chamber through a plurality of pipings connected to the material containing portion, and a piping having a smaller conductance among the pipings having different conductances is provided with a flow rate adjusting mechanism for controlling an amount of the vapor deposition material released into the vacuum chamber, whereby a film formation speed can be adjusted finely.
    Type: Application
    Filed: August 18, 2008
    Publication date: March 5, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Takahide Onuma, Nobutaka Ukigaya, Takehiko Soda, Kiyoshi Kuramochi, Tomokazu Sushihara, Naohiro Nakane
  • Publication number: 20070231460
    Abstract: When a multiple-panel forming process for producing a plurality of panels on a large-size substrate is employed, when production thereof is continued over a long period, or in other cases, a predetermined film thickness distribution can be stably obtained according to a method of the present invention. Vapor deposition on a substrate is performed by evaporating particles from a vapor deposition source arranged opposite to the substrate in a vacuum chamber. By changing a distance between the substrate and an opening provided at the vapor deposition source by a vapor deposition source position control mechanism, change with elapse of time in the film thickness distribution of a thin film formed on the substrate is controlled.
    Type: Application
    Filed: March 27, 2007
    Publication date: October 4, 2007
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Nobutaka Ukigaya
  • Publication number: 20070178708
    Abstract: There is provided a vapor deposition system including a vapor depositing source, holding means for holding a substrate, moving means, and an opening member having an opening, the moving means moving at least one of the substrate, and, the vapor depositing source and the opening member, in one direction in a plane in parallel with a plane including the substrate, and the opening member being disposed between the vapor depositing source and the substrate and having an opening having a width at a center of the opening in a direction of movement which is smaller than that at ends the opening. In the system, the plurality of vapor depositing sources are arranged along a direction in a plane, which is a direction intersecting the direction of movement, and the opening member has a plurality of openings each independently disposed so as to correspond to each of the plurality of vapor depositing sources.
    Type: Application
    Filed: January 26, 2007
    Publication date: August 2, 2007
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Nobutaka Ukigaya
  • Patent number: 7184196
    Abstract: An electrophoretic display of the type wherein a dispersion liquid for migration and a plurality of charged particles are sandwiched between a first substrate and a second substrate is produced through a process comprising: a latent image forming step of forming an electrostatic latent image on an adsorption member; a developing step of causing the adsorption member to contact the dispersion liquid in which the charged particles are dispersed, thereby to attach the charged particles together with the dispersion liquid onto a surface of the adsorption member on which the latent image is formed; a transfer step of transferring the charged particles from the surface of the adsorption member to the second substrate together with the dispersion liquid; and a sealing step of bonding the first substrate to the second substrate to seal the charged particles and the dispersion liquid, therebetween.
    Type: Grant
    Filed: January 26, 2004
    Date of Patent: February 27, 2007
    Assignee: Canon Kabushiki Kaisha
    Inventor: Nobutaka Ukigaya
  • Publication number: 20060273348
    Abstract: A field-effect transistor including an electrically conductive substrate; a first insulating film coating the electrically conductive substrate; a gate electrode disposed on the electrically conductive substrate with the first insulating film interposed therebetween; a source electrode; a drain electrode opposing the source electrode with the channel therebetween; a second insulating film covering the gate electrode; and a semiconductor layer having a width larger than a width of the gate electrode in the channel width direction and being partly provided on the gate electrode with the second insulating film interposed therebetween so that the gate electrode, the second insulating film, and the semiconductor layer are laminated in the channel.
    Type: Application
    Filed: May 26, 2006
    Publication date: December 7, 2006
    Applicant: Canon Kabushiki Kaisha
    Inventors: Hideki Yoshinaga, Hideo Mori, Nobutaka Ukigaya, Nozomu Izumi
  • Publication number: 20060125776
    Abstract: There is a demand for preventing display quality of a display apparatus from deteriorating. When charged particles (9) are attracted to a first electrode (3), the distribution density may not become uniform over the entire area A1 and only the distribution density in the periphery of the first electrode (3) (see reference numeral A3) may be locally reduced. The present invention places a colored layer (5) having the same color as the color of charged particles in this area A3. Therefore, even if the distribution density is low, the low density is hardly visually recognized, making it possible to prevent the display quality from deteriorating.
    Type: Application
    Filed: April 21, 2004
    Publication date: June 15, 2006
    Applicant: Canon Kabushiki Kaisha
    Inventors: Takeshi Togano, Tsutomu Ikeda, Nobutaka Ukigaya
  • Patent number: 7057798
    Abstract: An apparatus includes a substrate, charged particles, a transparent electrode disposed in parallel with a surface of the substrate, an electrode disposed at a periphery of the transparent electrode, means for applying a voltage between the transparent electrode and the electrode disposed at the periphery thereof to move the charged particles laterally, a reflection surface for reflecting light incident onto in the substrate, and a light scattering or absorption layer disposed between the transparent electrode and the reflection surface. The apparatus is effective in providing a desired scattering ability without increasing a drive voltage.
    Type: Grant
    Filed: May 4, 2004
    Date of Patent: June 6, 2006
    Assignee: Canon Kabushiki Kaisha
    Inventor: Nobutaka Ukigaya
  • Patent number: 6940634
    Abstract: An electrophoretic display device includes a first substrate and a second substrate disposed opposite to each other with a spacing, a partition wall for dividing the spacing into a plurality of sections, a plurality of electrophoretic particles and an insulating liquid which are disposed in the sections, a first electrode disposed at least between said partition wall and said first substrate, and a second electrode disposed on said second substrate. The electrophoretic display device is characterized in that the first electrode has an adhesive property, thus eliminating the need for a step of applying an adhesive resin for adhering the partition wall and the substrate to simplify production steps.
    Type: Grant
    Filed: March 24, 2004
    Date of Patent: September 6, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventor: Nobutaka Ukigaya
  • Publication number: 20050174321
    Abstract: A system (apparatus and process) for producing an electrophoretic (display) device is provided for allowing production of such a device wherein charged phoretic particles in the dispersion liquid are easily and evenly distributed to respective cells (pixels) between two substrates of the device even in the case of a very small gap between the two substrates or the case of using a flexible substrate. The system includes a storage for a dispersion liquid containing the charged phoretic particles dispersed therein, a stirrer for stirring the dispersion liquid, a substrate-holder for holding the substrate in the dispersion liquid, and a voltage source for applying a voltage to the electrodes formed on the substrate thereby depositing the charged phoretic particles on the electrodes.
    Type: Application
    Filed: February 22, 2005
    Publication date: August 11, 2005
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Tsutomu Ikeda, Nobutaka Ukigaya
  • Patent number: 6919003
    Abstract: A system (apparatus and process) for producing an electrophoretic (display) device is provided for allowing production of such a device wherein electrophoretic particles in the dispersion liquid are easily and evenly distributed to respective cells (pixels) between two substrates of the device even in the case of a very small gap between the two substrates or the case of using a flexible substrate. The system includes a storage unit for a dispersion liquid containing the charged phoretic particles dispersed therein, a stirrer for stirring the dispersion liquid, a substrate-holder for holding the substrate in the dispersion liquid, and a voltage source for applying a voltage to the electrodes formed on the substrate thereby depositing the electrophoretic particles on the electrodes.
    Type: Grant
    Filed: March 23, 2001
    Date of Patent: July 19, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tsutomu Ikeda, Nobutaka Ukigaya
  • Patent number: 6897996
    Abstract: An electrophoretic display device is configured to move charged particles between a display electrode surface and a cell wall surface and provides a solution to a problem that many charged particles are collected at the edge of the display electrode to degrade display contrast. The electrophoretic display device is arranged to move the charged particles between the display electrode surface and the side face of the cell wall and the vicinity thereof to implement display, and the second electrode is disposed on a lower face of the cell wall or in the vicinity of the lower face, thereby allowing the particles to be located on the surface of the cell wall. Another electrophoretic display device is provided which has a structure wherein all or part of the display electrode has a protruding shape.
    Type: Grant
    Filed: September 5, 2002
    Date of Patent: May 24, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tsutomu Ikeda, Nobutaka Ukigaya, Koichi Ishige