Patents by Inventor Kazuaki Sakurada

Kazuaki Sakurada 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: 7462241
    Abstract: A pattern forming system including a feeding reel for feeding a tape form substrate that is wound up, a winding reel for winding up the tape form substrate that is fed up, and a droplet discharge apparatus for discharging a droplet onto the tape form substrate, between the feeding reel and the winding reel, to form a pattern, wherein the droplet discharge apparatus includes a table that can move while sucking the tape form substrate, with a slack mechanism for the tape form substrate being placed on the both ends of the table in the longitudinal direction of the tape form substrate.
    Type: Grant
    Filed: September 6, 2005
    Date of Patent: December 9, 2008
    Assignee: Seiko Epson Corporation
    Inventors: Kazuaki Sakurada, Noboru Uehara, Tsuyoshi Shintate
  • Patent number: 7459176
    Abstract: A functional film fabrication method for fabricating a functional film on a base having a flat surface includes an installation step and an application step. In the installation step, a base is installed so that the flat surface is on top, and a droplet discharge head with a plurality of nozzles aligned in a first direction is arranged above the flat surface. In the application step, a functional film is fabricated on the flat surface by repeating a discharge step and a nozzle movement step. In the discharge step, droplets of a functional liquid are discharged from the nozzles onto the base. In the nozzle movement step, the nozzles are moved relative to the base in a second direction perpendicular to the first direction over a distance shorter than the distance between the nozzles in the first direction.
    Type: Grant
    Filed: March 10, 2004
    Date of Patent: December 2, 2008
    Assignee: Seiko Epson Corporation
    Inventor: Kazuaki Sakurada
  • Patent number: 7433013
    Abstract: A manufacturing method of a liquid crystal display device enables decreasing the fraction defective of a liquid crystal panel upon manufacturing the liquid crystal display device using the liquid crystal dropping model in a large-sized board. The manufacturing method of a liquid crystal display device includes a preliminary liquid crystal coating process, a film thickness measurement process, a liquid crystal discharge condition calculation process, and a liquid crystal coating process. The preliminary liquid crystal coating process scans a plurality of the cell forming areas of the sample board with a droplet discharge head in a predetermined scanning direction, and coats the liquid crystal with a predetermined discharge condition. The film thickness measurement process respectively measures the film thickness of the liquid crystal coated onto the plurality of the cell forming areas.
    Type: Grant
    Filed: December 8, 2004
    Date of Patent: October 7, 2008
    Assignee: Seiko Epson Corporation
    Inventors: Yuji Iwata, Kazuaki Sakurada
  • Patent number: 7416759
    Abstract: In a method of forming a wiring pattern, a plurality of electrical wirings deposited to be multilayered are conductively connected to one another through a conducting post. The method has forming the electrical wiring by discharging a first droplet including a material for forming the electrical wiring, and forming the conducting post by discharging a second droplet including a material for forming the conducting post, wherein a volume of the second droplet is greater than a volume of the first droplet.
    Type: Grant
    Filed: September 13, 2005
    Date of Patent: August 26, 2008
    Assignee: Seiko Epson Corporation
    Inventors: Tsuyoshi Shintate, Kazuaki Sakurada, Noboru Uehara
  • Patent number: 7387903
    Abstract: Aspects of the invention provide a manufacturing method enabling a fine layer pattern to form it precisely and stably. An exemplary method for manufacturing a layer pattern can include a step (a) of forming a region defined by a first layer and a second layer on a substrate and a step (b) of ejecting a liquid like material to the region from an ejecting part of an ejecting device. Here, the first layer can be formed on the substrate and the second layer can be located on the first layer. A lyophobicity of the first layer to the liquid like material is lower than the lyophobicity of the second layer to the liquid like material.
    Type: Grant
    Filed: July 12, 2004
    Date of Patent: June 17, 2008
    Assignee: Seiko Epson Corporation
    Inventors: Hirofumi Sakai, Kazuaki Sakurada
  • Publication number: 20080115351
    Abstract: A method of manufacturing a wiring board includes steps of: providing a substrate; forming a first wiring layer on the substrate by photolithography; forming a first insulating layer by ink jetting so as to cover a part of the first wiring layer and expose an exposed section of the first wiring layer; and forming a second wiring layer by ink jetting partly over the first wiring layer, with the first insulating layer being between the part of the first wiring layer and a part of the second wiring layer. A wider variety of conductive material and insulating material can be used for forming the wiring layers and the insulating layers on the substrate by ink jetting, while the wiring board has a first wiring layer having high density.
    Type: Application
    Filed: January 18, 2008
    Publication date: May 22, 2008
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Hideo IMAI, Kazuaki SAKURADA
  • Patent number: 7335604
    Abstract: To provide a thin-film forming device and a thin-film forming method, a liquid crystal display and a device and method for manufacturing the same, and a thin-film structure and a device and method for manufacturing the same, in which material losses are reduced by using a droplet ejection head, and in addition, the thickness of the entire film can be made uniform. The invention can include a thin-film forming device that is a device for forming a thin film by applying a coating solution onto a substrate, the coating solution containing a solvent and a film-forming material dissolved or dispersed therein. Also an ejection mechanism having a droplet ejection head for ejecting the coating solution onto the substrate, a moving mechanism capable of relatively moving the positions of the droplet ejection head and the substrate, and a control unit for controlling at least one of the ejection mechanism and the moving mechanism can be provided for the thin-film forming device.
    Type: Grant
    Filed: February 13, 2003
    Date of Patent: February 26, 2008
    Assignee: Seiko Epson Corporation
    Inventor: Kazuaki Sakurada
  • Patent number: 7316974
    Abstract: A wiring pattern formation method in which a wiring pattern is formed by arranging, in a region which is demarcated by a partition wall, liquid material which includes an electrically conductive material, including: arranging a resin material around the periphery of a region upon which the wiring pattern is to be formed; imparting liquid affinity to a demarcated region which has been demarcated by the resin material; narrowing down the demarcated region by flowing out the resin material towards and into the demarcated region; and forming the partition wall by curing the resin material.
    Type: Grant
    Filed: September 26, 2005
    Date of Patent: January 8, 2008
    Assignee: Seiko Epson Corporation
    Inventors: Noboru Uehara, Tsuyoshi Shintate, Kazuaki Sakurada
  • Publication number: 20070251448
    Abstract: An applicator including a liquid discharge head for discharging a treatment liquid in droplet form, and a discharge control device for controlling the discharge of droplets from the liquid discharge head. The discharge control device divides a surface of a member into a plurality of regions according to the shape of the surface, and controls the application quantity for each region.
    Type: Application
    Filed: June 22, 2007
    Publication date: November 1, 2007
    Inventors: Kazuaki Sakurada, Keisuke Takada
  • Patent number: 7285033
    Abstract: In a manufacturing method of a color filter for display devices having a plurality of pixels on a substrate, each pixel comprises a reflective layer and a color layer, the method of manufacture comprises a step of forming partitions which separate each pixel area from the other pixel areas to comprise the pixel in each pixel area; a step of forming the reflective layer by discharging a first liquid material into each of the pixel areas by means of a droplet discharge method; and a step of forming the color layer within each of the pixel areas. By this method, color filters can be manufactured without requiring photolithography or other complicated processes, in a short time, using little energy, and at low cost.
    Type: Grant
    Filed: June 4, 2004
    Date of Patent: October 23, 2007
    Assignee: Seiko Epson Corporation
    Inventor: Kazuaki Sakurada
  • Publication number: 20070204795
    Abstract: The invention provides a thin-film forming device, a thin-film forming method, a device for manufacturing a liquid crystal display, a method for manufacturing a liquid crystal display, a device for manufacturing a thin-film structure, a method for a thin-film structure, a liquid crystal display, a thin-film structure, and an electronic apparatus, objects are to achieve easy control of thickness of a thin film without using rotation means, cost reduction, and miniaturization of the devices. The thin-film forming device for forming a thin film by applying a coating solution onto a substrate, there can be provided an ejection mechanism having a droplet ejection head for ejecting the coating solution onto the substrate, a moving mechanism capable of relatively moving the positions of the droplet ejection head and the substrate, and a control unit for controlling at least one of the ejection mechanism and the moving mechanism.
    Type: Application
    Filed: May 2, 2007
    Publication date: September 6, 2007
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Kazuaki Sakurada
  • Patent number: 7250190
    Abstract: An applicator including a liquid discharge head for discharging a treatment liquid in droplet form, and a discharge control device for controlling the discharge of droplets from the liquid discharge head. The discharge control device divides a surface of a member into a plurality of regions according to the shape of the surface, and controls the application quantity for each region.
    Type: Grant
    Filed: July 30, 2003
    Date of Patent: July 31, 2007
    Assignee: Seiko Epson Corporation
    Inventors: Kazuaki Sakurada, Keisuke Takada
  • Patent number: 7250377
    Abstract: There is provided a multi-layered structure forming method comprising: (A) forming a first insulating material layer containing a first photo-curing material on a substrate; (B) semi-hardening the first insulating material layer by radiating light having a first wavelength to the first insulating material layer; (C) forming a conductive material layer on the semi-hardened first insulating material layer by ejecting droplets of a conductive material to the semi-hardened first insulating material layer from a nozzle of a liquid droplet ejecting apparatus; (D) forming a second insulating material layer containing a second photo-curing material so as to cover the semi-hardened first insulating material layer and the conductive material layer; and (E) forming a first insulating layer, a conductive layer positioned on the first insulating material, and a second insulating layer covering the first insulating layer and the conductive layer by simultaneously heating the first insulating material layer, the conductive
    Type: Grant
    Filed: August 11, 2005
    Date of Patent: July 31, 2007
    Assignee: Seiko Epson Corporation
    Inventors: Tsuyoshi Shintate, Toshiaki Mikoshiba, Kenji Wada, Kazuaki Sakurada, Jun Yamada
  • Publication number: 20070141828
    Abstract: There is provided a multi-layered structure forming method comprising: (A) forming a first insulating material layer containing a first photo-curing material on a substrate; (B) semi-hardening the first insulating material layer by radiating light having a first wavelength to the first insulating material layer; (C) forming a conductive material layer on the semi-hardened first insulating material layer by ejecting droplets of a conductive material to the semi-hardened first insulating material layer from a nozzle of a liquid droplet ejecting apparatus; (D) forming a second insulating material layer containing a second photo-curing material so as to cover the semi-hardened first insulating material layer and the conductive material layer; and (E) forming a first insulating layer, a conductive layer positioned on the first insulating material, and a second insulating layer covering the first insulating layer and the conductive layer by simultaneously heating the first insulating material layer, the conductive
    Type: Application
    Filed: February 16, 2007
    Publication date: June 21, 2007
    Applicant: Seiko Epson Corporation
    Inventors: Tsuyoshi Shintate, Toshiaki Mikoshiba, Kenji Wada, Kazuaki Sakurada, Jun Yamada
  • Patent number: 7226642
    Abstract: The invention provides a thin-film forming device, a thin-film forming method, a device for manufacturing a liquid crystal display, a method for manufacturing a liquid crystal display, a device for manufacturing a thin-film structure, a method for a thin-film structure, a liquid crystal display, a thin-film structure, and an electronic apparatus, objects are to achieve easy control of thickness of a thin film without using rotation means, cost reduction, and miniaturization of the devices. The thin-film forming device for forming a thin film by applying a coating solution onto a substrate, there can be provided an ejection mechanism having a droplet ejection head for ejecting the coating solution onto the substrate, a moving mechanism capable of relatively moving the positions of the droplet ejection head and the substrate, and a control unit for controlling at least one of the ejection mechanism and the moving mechanism.
    Type: Grant
    Filed: February 20, 2003
    Date of Patent: June 5, 2007
    Assignee: Seiko Epson Corporation
    Inventor: Kazuaki Sakurada
  • Publication number: 20070107658
    Abstract: The invention provides a method for manufacturing a liquid crystal device that is capable of controlling a wetting/spreading of a liquid crystal that is applied on and wets on a substrate. The invention can include a unit for ejecting liquid drops that applies a liquid crystal on a substrate, a multi-stage oven that preheats the substrate on which the liquid crystal is to be applied, and a cooling plate that cools down the substrate on which the liquid crystal has been applied are provided. Further, a first robot arm that automatically transfers the substrate to the unit for ejecting liquid drops from the multi-stage oven and a second robot arm that automatically transfers the substrate to the cooling plate from the unit for ejecting liquid drops can be provided.
    Type: Application
    Filed: January 8, 2007
    Publication date: May 17, 2007
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Kazuaki Sakurada
  • Publication number: 20070046718
    Abstract: A method for forming a layer comprises (a) disposing a first droplet to two parts on an underlayer surface so as to form two dot patterns isolated each other on the underlayer surface, (b) fixing the two dot patterns to the underlayer surface, (c) giving lyophilicity with respect to a second droplet to at least the underlayer surface between the two dot patterns, and (d) disposing the second droplet to the underlayer surface between the two dot patterns so as to join the two dot patterns after the step (c).
    Type: Application
    Filed: August 25, 2006
    Publication date: March 1, 2007
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Tsuyoshi SHINTATE, Koichi MIZUGAKI, Kazuaki SAKURADA, Kenji WADA
  • Publication number: 20060127567
    Abstract: A wiring pattern formation method in which a wiring pattern is formed by arranging, in a region which is demarcated by a partition wall, liquid material which includes an electrically conductive material, including: arranging a resin material around the periphery of a region upon which the wiring pattern is to be formed; imparting liquid affinity to a demarcated region which has been demarcated by the resin material; narrowing down the demarcated region by flowing out the resin material towards and into the demarcated region; and forming the partition wall by curing the resin material.
    Type: Application
    Filed: September 26, 2005
    Publication date: June 15, 2006
    Inventors: Noboru Uehara, Tsuyoshi Shintate, Kazuaki Sakurada
  • Patent number: 7052811
    Abstract: In a manufacturing method of a color filter for display devices having a plurality of pixels on a substrate, each pixel comprises a reflective layer and a color layer, the method of manufacture comprises a step of forming partitions which separate each pixel area from the other pixel areas to comprise the pixel in each pixel area; a step of forming the reflective layer by discharging a first liquid material into each of the pixel areas by means of a droplet discharge method; and a step of forming the color layer within each of the pixel areas. By this method, color filters can be manufactured without requiring photolithography or other complicated processes, in a short time, using little energy, and at low cost.
    Type: Grant
    Filed: April 15, 2005
    Date of Patent: May 30, 2006
    Assignee: Seiko Epson Corporation
    Inventor: Kazuaki Sakurada
  • Publication number: 20060087545
    Abstract: A pattern forming system including a feeding reel for feeding a tape form substrate that is wound up, a winding reel for winding up the tape form substrate that is fed up, and a droplet discharge apparatus for discharging a droplet onto the tape form substrate, between the feeding reel and the winding reel, to form a pattern, wherein the droplet discharge apparatus includes a table that can move while sucking the tape form substrate, with a slack mechanism for the tape form substrate being placed on the both ends of the table in the longitudinal direction of the tape form substrate.
    Type: Application
    Filed: September 6, 2005
    Publication date: April 27, 2006
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Kazuaki Sakurada, Noboru Uehara, Tsuyoshi Shintate