Patents by Inventor Yoshiyuki Yanagisawa

Yoshiyuki Yanagisawa 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: 6974711
    Abstract: A device transfer method includes the steps of: covering a plurality of devices, which have been formed on a substrate, with a resin layer; forming electrodes in the resin layer in such a manner that the electrodes are connected to the devices; cutting the resin layer, to obtain resin buried devices each containing at least one of the devices; and peeling the resin buried devices from the substrate and transferring them to a device transfer body. This device transfer method is advantageous in easily, smoothly separating devices from each other, and facilitating handling of the devices in a transfer step and ensuring good electric connection between the devices and external wiring, even if the devices are fine devices.
    Type: Grant
    Filed: April 12, 2005
    Date of Patent: December 13, 2005
    Assignee: Sony Corporation
    Inventors: Yoshiyuki Yanagisawa, Toyoharu Oohata, Toshiaki Iwafuchi
  • Patent number: 6969624
    Abstract: The interface between a first substrate and light-emitting diodes formed on the first substrate is selectively irradiated with an energy beam and transmits the energy beam through the first substrate, thereby selectively releasing the light-emitting diodes. The light-emitting diodes are then transferred onto a device holding layer included on a device holding substrate. Subsequently, the light-emitting diodes are transferred onto a second substrate. The irradiation of the interface with the energy beam enables the devices to be easily released from the first substrate.
    Type: Grant
    Filed: February 17, 2005
    Date of Patent: November 29, 2005
    Assignee: Sony Corporation
    Inventors: Toshiaki Iwafuchi, Yoshiyuki Yanagisawa, Toyoharu Oohata
  • Patent number: 6943047
    Abstract: A device transferring method and a device arraying method are provided for readily transferring a number of devices from a first substrate to a second substrate such that the devices are enlargedly spaced from each other with a pitch larger than an array pitch of the devices arrayed on the first substrate.
    Type: Grant
    Filed: July 31, 2002
    Date of Patent: September 13, 2005
    Assignee: Sony Corporation
    Inventors: Yoshiyuki Yanagisawa, Toshiaki Iwafuchi, Masaru Minami, Kunihiko Hayashi
  • Patent number: 6939729
    Abstract: The interface between a first substrate and light-emitting diodes formed on the first substrate is selectively irradiated with an energy beam and transmits the energy beam through the first substrate, thereby selectively releasing the light-emitting diodes. The light-emitting diodes are then transferred onto a device holding layer included on a device holding substrate. Subsequently, the light-emitting diodes are transferred onto a second substrate. The irradiation of the interface with the energy beam enables the devices to be easily released from the first substrate.
    Type: Grant
    Filed: December 14, 2001
    Date of Patent: September 6, 2005
    Assignee: Sony Corporation
    Inventors: Toshiaki Iwafuchi, Yoshiyuki Yanagisawa, Toyoharu Oohata
  • Patent number: 6935745
    Abstract: The present invention provides an optical device that achieves reduction in size, reduction in manufacturing costs, improved image quality, and so forth, by simplification and the like of a panel in prisms (POP) structure wherein light-modulating devices and a color synthesizing optical element are integrally formed. A POP structure is configured wherein pins integrally formed with a holding member are inserted through holes formed in the four corners of holding frames storing the liquid crystal panelsso as to fix the holding frames and holding members by adhesion. End faces of holding members opposite to the pins are fixed by adhesion to the side faces of bases fixed on the upper and lower faces of a cross-dichroic prism.
    Type: Grant
    Filed: July 8, 2002
    Date of Patent: August 30, 2005
    Assignee: Seiko Epson Corporation
    Inventors: Masashi Kitabayashi, Nobuo Watanabe, Motoyuki Fujimori, Yoshiyuki Yanagisawa, Taisuke Uehara, Toshiaki Hashizume
  • Patent number: 6935753
    Abstract: This invention provides a technique of reducing temperature rise due to heat generation of polarization control elements. A projector includes: an illumination optical system; an electro-optical device for modulating light from the illumination optical system in response to image information; a projection optical system for projecting modulated light obtained with the electro-optical device and a base frame, formed using material including metal material, for mounting a plurality of optical components arranged on an optical path from the illumination optical system to the projection optical system. At least one of the plurality of optical components is a polarization control component that includes: a polarization control element including organic material for the controlling polarization state of light exiting from the polarization control element; and a light-transmissive member having a thermal conductivity of at least about 0.8 W/(m·K), to which the polarization control element is stuck.
    Type: Grant
    Filed: January 15, 2002
    Date of Patent: August 30, 2005
    Assignee: Seiko Epson Corporation
    Inventors: Takeshi Takezawa, Toshiaki Hashizume, Motoyuki Fujimori, Yoshiyuki Yanagisawa
  • Patent number: 6933208
    Abstract: A method for forming via holes includes placing an insulating layer on a first wiring layer, forming opening portions in the insulating layer, and forming a second wiring layer on the insulating layer. At the time of forming the opening portions, the insulating layer is irradiated with a laser beam with the focus position staggered.
    Type: Grant
    Filed: April 12, 2002
    Date of Patent: August 23, 2005
    Assignee: Sony Corporation
    Inventors: Yoshiyuki Yanagisawa, Toshiaki Iwafuchi
  • Publication number: 20050181597
    Abstract: A method for forming via holes includes placing an insulating layer on a first wiring layer, forming opening portions in the insulating layer, and forming a second wiring layer on the insulating layer. At the time of forming the opening portions, the insulating layer is irradiated with a laser beam with the focus position staggered.
    Type: Application
    Filed: April 5, 2005
    Publication date: August 18, 2005
    Inventors: Yoshiyuki Yanagisawa, Toshiaki Iwafuchi
  • Publication number: 20050181548
    Abstract: A device transfer method includes the steps of: covering a plurality of devices, which have been formed on a substrate, with a resin layer; forming electrodes in the resin layer in such a manner that the electrodes are connected to the devices; cutting the resin layer, to obtain resin buried devices each containing at least one of the devices; and peeling the resin buried devices from the substrate and transferring them to a device transfer body. This device transfer method is advantageous in easily, smoothly separating devices from each other, and facilitating handling of the devices in a transfer step and ensuring good electric connection between the devices and external wiring, even if the devices are fine devices.
    Type: Application
    Filed: April 12, 2005
    Publication date: August 18, 2005
    Inventors: Yoshiyuki Yanagisawa, Toyoharu Oohata, Toshiaki Iwafuchi
  • Publication number: 20050179043
    Abstract: A display device is formed by burying at least part of a light emitting device in an insulating material, wherein a drive electrode for the light emitting device is formed so as to be extracted on a surface of the insulating material. A display unit is produced by two-dimensionally arraying such light emitting devices on a base body. Since the display device is modularized by burying a light emitting device finely formed in an insulating material, to re-shape the light emitting device into a size easy to handle, it is possible to suppress the production cost of the display unit using such display devices, and to ensure a desirable handling performance of the light emitting device; for example, facilitate the carrying of the light emitting device or the mounting thereof on a base body.
    Type: Application
    Filed: April 11, 2005
    Publication date: August 18, 2005
    Inventors: Toyoharu Oohata, Hideharu Nakajima, Yoshiyuki Yanagisawa, Toshiaki Iwafuchi
  • Publication number: 20050179044
    Abstract: A display device is formed by burying at least part of a light emitting device in an insulating material, wherein a drive electrode for the light emitting device is formed so as to be extracted on a surface of the insulating material. A display unit is produced by two-dimensionally arraying such light emitting devices on a base body. Since the display device is modularized by burying a light emitting device finely formed in an insulating material, to re-shape the light emitting device into a size easy to handle, it is possible to suppress the production cost of the display unit using such display devices, and to ensure a desirable handling performance of the light emitting device; for example, facilitate the carrying of the light emitting device or the mounting thereof on a base body.
    Type: Application
    Filed: April 11, 2005
    Publication date: August 18, 2005
    Inventors: Toyoharu Oohata, Hideharu Nakajima, Yoshiyuki Yanagisawa, Toshiaki Iwafuchi
  • Publication number: 20050161686
    Abstract: A display device is formed by burying at least part of a light emitting device in an insulating material, wherein a drive electrode for the light emitting device is formed so as to be extracted on a surface of the insulating material. A display unit is produced by two-dimensionally arraying such light emitting devices on a base body. Since the display device is modularized by burying a light emitting device finely formed in an insulating material, to re-shape the light emitting device into a size easy to handle, it is possible to suppress the production cost of the display unit using such display devices, and to ensure a desirable handling performance of the light emitting device; for example, facilitate the carrying of the light emitting device or the mounting thereof on a base body.
    Type: Application
    Filed: March 23, 2005
    Publication date: July 28, 2005
    Inventors: Toyoharu Oohata, Hideharu Nakajima, Yoshiyuki Yanagisawa, Toshiaki Iwafuchi
  • Patent number: 6921675
    Abstract: A device transfer method includes the steps of: covering a plurality of devices, which have been formed on a substrate, with a resin layer; forming electrodes in the resin layer in such a manner that the electrodes are connected to the devices; cutting the resin layer, to obtain resin buried devices each containing at least one of the devices; and peeling the resin buried devices from the substrate and transferring them to a device transfer body. This device transfer method is advantageous in easily, smoothly separating devices from each other, and facilitating handling of the devices in a transfer step and ensuring good electric connection between the devices and external wiring, even if the devices are fine devices.
    Type: Grant
    Filed: September 23, 2004
    Date of Patent: July 26, 2005
    Assignee: Sony Corporation
    Inventors: Yoshiyuki Yanagisawa, Toyoharu Oohata, Toshiaki Iwafuchi
  • Publication number: 20050158989
    Abstract: A method for forming via holes includes placing an insulating layer on a first wiring layer, forming opening portions in the insulating layer, and forming a second wiring layer on the insulating layer. At the time of forming the opening portions, the insulating layer is irradiated with a laser beam with the focus position staggered.
    Type: Application
    Filed: March 10, 2005
    Publication date: July 21, 2005
    Inventors: Yoshiyuki Yanagisawa, Toshiaki Iwafuchi
  • Publication number: 20050158904
    Abstract: A method of selectively transferring devices arrayed on a first substrate to a second substrate on which an adhesive resin layer is previously formed is provided. The method includes steps of selectively heating the adhesive resin layer on the second substrate by laser irradiation from the back surface side of the second substrate, and curing the selectively heated portions of the adhesive resin layer, thereby adhesively bonding those to be transferred of the devices to the second substrate. At this time, portions, corresponding to the devices, of the adhesive layer are heated directly or indirectly via the devices or wiring portions by laser irradiation from the back surface side of the substrate. The heated portions of the adhesive resin layer selectively exhibit the adhesive forces. The heated portions of the adhesive layer are then cured, so that only the devices to be transferred are selectively transferred to the second substrate.
    Type: Application
    Filed: March 14, 2005
    Publication date: July 21, 2005
    Inventors: Kunihiko Hayashi, Yoshiyuki Yanagisawa, Toshiaki Iwafuchi, Hisashi Ohba
  • Publication number: 20050158896
    Abstract: A method of selectively transferring devices arrayed on a first substrate to a second substrate on which an adhesive resin layer is previously formed is provided. The method includes steps of selectively heating the adhesive resin layer on the second substrate by laser irradiation from the back surface side of the second substrate, and curing the selectively heated portions of the adhesive resin layer, thereby adhesively bonding those to be transferred of the devices to the second substrate. At this time, portions, corresponding to the devices, of the adhesive layer are heated directly or indirectly via the devices or wiring portions by laser irradiation from the back surface side of the substrate. The heated portions of the adhesive resin layer selectively exhibit the adhesive forces. The heated portions of the adhesive layer are then cured, so that only the devices to be transferred are selectively transferred to the second substrate.
    Type: Application
    Filed: March 14, 2005
    Publication date: July 21, 2005
    Inventors: Kunihiko Hayashi, Yoshiyuki Yanagisawa, Toshiaki Iwafuchi, Hisashi Ohba
  • Publication number: 20050155699
    Abstract: A method of selectively transferring devices arrayed on a first substrate to a second substrate on which an adhesive resin layer is previously formed is provided. The method includes steps of selectively heating the adhesive resin layer on the second substrate by laser irradiation from the back surface side of the second substrate, and curing the selectively heated portions of the adhesive resin layer, thereby adhesively bonding those to be transferred of the devices to the second substrate. At this time, portions, corresponding to the devices, of the adhesive layer are heated directly or indirectly via the devices or wiring portions by laser irradiation from the back surface side of the substrate. The heated portions of the adhesive resin layer selectively exhibit the adhesive forces. The heated portions of the adhesive layer are then cured, so that only the devices to be transferred are selectively transferred to the second substrate.
    Type: Application
    Filed: December 22, 2004
    Publication date: July 21, 2005
    Inventors: Kunihiko Hayashi, Yoshiyuki Yanagisawa, Toshiaki Iwafuchi, Hisashi Ohba
  • Publication number: 20050158895
    Abstract: A method of selectively transferring devices arrayed on a first substrate to a second substrate on which an adhesive resin layer is previously formed is provided. The method includes steps of selectively heating the adhesive resin layer on the second substrate by laser irradiation from the back surface side of the second substrate, and curing the selectively heated portions of the adhesive resin layer, thereby adhesively bonding those to be transferred of the devices to the second substrate. At this time, portions, corresponding to the devices, of the adhesive layer are heated directly or indirectly via the devices or wiring portions by laser irradiation from the back surface side of the substrate. The heated portions of the adhesive resin layer selectively exhibit the adhesive forces. The heated portions of the adhesive layer are then cured, so that only the devices to be transferred are selectively transferred to the second substrate.
    Type: Application
    Filed: March 14, 2005
    Publication date: July 21, 2005
    Inventors: Kunihiko Hayashi, Yoshiyuki Yanagisawa, Toshiaki Iwafuchi, Hisashi Ohba
  • Publication number: 20050148106
    Abstract: The interface between a first substrate and light-emitting diodes formed on the first substrate is selectively irradiated with an energy beam and transmits the energy beam through the first substrate, thereby selectively releasing the light-emitting diodes. The light-emitting diodes are then transferred onto a device holding layer included on a device holding substrate. Subsequently, the light-emitting diodes are transferred onto a second substrate. The irradiation of the interface with the energy beam enables the devices to be easily released from the first substrate.
    Type: Application
    Filed: February 17, 2005
    Publication date: July 7, 2005
    Inventors: Toshiaki Iwafuchi, Yoshiyuki Yanagisawa, Toyoharu Oohata
  • Patent number: 6906840
    Abstract: A liquid crystal panel modulates a light beam irradiated by a light source in accordance with image information, which includes a liquid crystal panel body having a pair of transparent substrates between which electro-optic material is sealed, and a holding frame of approximately C-shaped cross section having a base portion provided with an opening corresponding to an image formation area of the liquid crystal panel and a pair of lateral portions vertically provided on opposing sides of the base portion, the holding frame accommodating the liquid crystal panel body thereinside.
    Type: Grant
    Filed: August 22, 2003
    Date of Patent: June 14, 2005
    Assignee: Seiko Epson Corporation
    Inventors: Motoyuki Fujimori, Yoshiyuki Yanagisawa