Patents by Inventor Masanao Fujii

Masanao Fujii 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: 7111390
    Abstract: An apparatus combining a high-speed high-precision characteristic equivalent to that of a die bonder and a flexibility of coping quickly with a process variation and product variation along with size reduction and economics. This apparatus comprises a base unit including a body containing a device to be used in common among a plurality of processes for mounting and assembling parts, a mechanism for conveying a workpiece in a predetermined conveying direction and a mechanism for positioning the workpiece, a dedicated unit including an end effector, and a selected mechanism unit including a mechanism for moving the end effector in two axial directions perpendicular to the predetermined conveying direction to adjust a relative position between the end effector and the workpiece or a part. The moving mechanism is interchangeably attached on the base unit, and the end effector is interchangeably attached on the moving mechanism.
    Type: Grant
    Filed: March 19, 2004
    Date of Patent: September 26, 2006
    Assignee: Fujitsu Limited
    Inventors: Koichi Shimamura, Kazuhisa Mishima, Toshiaki Otsuka, Toru Okada, Masanao Fujii
  • Publication number: 20060169750
    Abstract: There are provided a solder ball deforming step of mechanically deforming a ball to break an oxide film of a surface thereof and to expose a nonoxide surface and a solder melting step of heating and melting the deformed solder ball through energy irradiation in a state where the deformed solder ball is mounted on joint units of a loaded work. The solder ball deforming step mechanically deforms the solder ball to form at least two orthogonal contact surfaces in contact with the joint surfaces of the joint units.
    Type: Application
    Filed: May 31, 2005
    Publication date: August 3, 2006
    Applicant: FUJITSU LIMITED
    Inventors: Hisao Tanaka, Masanao Fujii, Toru Okada, Susumu Iida, Hirokazu Yamanishi, Yutaka Noda
  • Patent number: 6903876
    Abstract: A body has a configuration in which a first ellipse has a first and second focal points and a second ellipse having a third and fourth points are arranged such that the second and third focal points coincide. This body is equivalent to an optical system having an optical path in which light gathered to the first focal point passes through the first focal point, and is reflected by a first concave reflecting surface, being a part of the first ellipse, to go through the second focal point, and then reflected by a second concave reflecting surface, being a part of the second ellipse, to be gathered to the fourth focal point.
    Type: Grant
    Filed: December 4, 2002
    Date of Patent: June 7, 2005
    Assignee: Fujitsu Limited
    Inventors: Toru Okada, Masanao Fujii, Seiichi Shimoura, Shingo Yamaguchi, Haruyasu Watanabe
  • Publication number: 20050104477
    Abstract: In a method of producing a micro-actuator, a first adhesive is applied to a movable plate, and a movable, and a movable electrode is placed on the first adhesive. A second adhesive is applied to the movable electrode, and a piezoelectric element is placed on the second adhesive. Next, a third adhesive is applied to an actuator base, a base electrode is placed on the third adhesive, and the third adhesive is semi-cured in the same manner as above. A fourth adhesive is applied to the base electrode, the piezoelectric element is placed on the fourth adhesive, and the fourth adhesive is semi-cured in the same manner as above. Finally, the adhered laminate thus obtained is placed into a heating furnace and heated at a predetermined temperature for a predetermined period of time to thereby fully cure the adhesives.
    Type: Application
    Filed: December 7, 2004
    Publication date: May 19, 2005
    Inventors: Masanao Fujii, Toru Okada, Masayuki Kitajima, Hidehiko Kobayashi, Seiichi Shimoura
  • Publication number: 20050034960
    Abstract: The present invention provides an apparatus combining a high-speed high-precision characteristic equivalent to that of a die bonder and a flexibility of coping quickly with a process variation and product variation along with size reduction and economics. This apparatus comprises a base unit including a body containing a device to be used in common among a plurality of processes for mounting and assembling parts, a mechanism for conveying a workpiece in a predetermined conveying direction and a mechanism for positioning the workpiece, a dedicated unit including an end effector, and a selected mechanism unit including a mechanism for moving the end effector in two axial directions perpendicular to the predetermined conveying direction to adjust a relative position between the end effector and the workpiece or a part. The moving mechanism is interchangeably attached on the base unit, and the end effector is interchangeably attached on the moving mechanism.
    Type: Application
    Filed: March 19, 2004
    Publication date: February 17, 2005
    Applicant: FUJITSU LIMITED
    Inventors: Koichi Shimamura, Kazuhisa Mishima, Toshiaki Otsuka, Toru Okada, Masanao Fujii
  • Publication number: 20050038537
    Abstract: The present invention relates to a design support system constructed so as to comprise a manufacturing line information preparation section and an output section. On the basis of element types selected by a selection section as arbitrary element types to be used for constituting a manufacturing line, the manufacturing line information preparation section prepares information about the manufacturing line by means of acquiring information about element types stored in an element type database beforehand. The output section can output the information about the manufacturing line prepared by the manufacturing line information preparation section. A manufacturing line including a plurality of steps is efficiently examined, determined, and established, thereby shortening the time required to design and manufacture the manufacturing line and curtailing manufacturing costs.
    Type: Application
    Filed: March 23, 2004
    Publication date: February 17, 2005
    Applicant: Fujitsu Limited
    Inventors: Toru Okada, Masanao Fujii, Takatoyo Yamakami, Kazuhisa Mishima, Toshiaki Otsuka
  • Patent number: 6848154
    Abstract: In a method of producing a micro-actuator, a first adhesive is applied to a movable plate, and a movable electrode is placed on the first adhesive. A second adhesive is applied to the movable electrode, and a piezoelectric element is placed on the second adhesive. Next, a third adhesive is applied to an actuator base, a base electrode is placed on the third adhesive, and the third adhesive is semi-cured in the same manner as above. A fourth adhesive is applied to the base electrode, the piezoelectric element is placed on the fourth adhesive, and the fourth adhesive is semi-cured in the same manner as above. Finally, the adhered laminate thus obtained is placed into a heating furnace and heated at a predetermined temperature for a predetermined period of time to thereby fully cure the adhesives.
    Type: Grant
    Filed: June 12, 2003
    Date of Patent: February 1, 2005
    Assignee: Fujitsu Limited
    Inventors: Masanao Fujii, Toru Okada, Masayuki Kitajima, Hidehiko Kobayashi, Seiichi Shimoura
  • Patent number: 6744183
    Abstract: A method of bonding a piezoelectric element and an electrode, including the steps of forming a first coating of a material selected from the group consisting of Au, Al, Zn, Cu, and Sn on a bonding surface of the piezoelectric element, and forming a second coating of a material selected from the group consisting of Au, Al, Zn, Cu, and Sn on a bonding surface of the electrode. The combination of the materials of the first and second coatings is preferably Au/Au, Au/Al, Zn/Cu, or Sn/Cu. The method further includes the step of bringing the first and second coatings into close contact with each other and heating them under pressure to form a metallic bond or intermetallic compound between the first and second coatings, thereby bonding the piezoelectric element and the electrode.
    Type: Grant
    Filed: January 21, 2003
    Date of Patent: June 1, 2004
    Assignee: Fujitsu Limited
    Inventors: Masayuki Kitajima, Yutaka Noda, Seiichi Shimoura, Toru Okada, Masanao Fujii, Kenji Iketaki, Hidehiko Kobayashi, Masakazu Takesue, Keiichi Yamamoto, Hisao Tanaka
  • Patent number: 6653761
    Abstract: In a method of producing a micro-actuator, a first adhesive is applied to a movable plate, and a movable electrode is placed on the first adhesive. The movable plate and the movable electrode are clamped between a first stage and a first head, followed by heating for a first predetermined period of time while exerting a first predetermined press load onto the first head to semi-cure the first adhesive. A second adhesive is applied to the movable electrode, and a piezoelectric element is placed on the second adhesive. The movable plate, the movable electrode and the piezoelectric element are clamped between the first stage and a second head, followed by heating for a second predetermined period of time while exerting a second predetermined press load onto the second head to semi-cure the second adhesive. Next, a third adhesive is applied to an actuator base, a base electrode is placed on the third adhesive, and the third adhesive is semi-cured in the same manner as above.
    Type: Grant
    Filed: March 30, 2001
    Date of Patent: November 25, 2003
    Assignee: Fujitsu Limited
    Inventors: Masanao Fujii, Toru Okada, Masayuki Kitajima, Hidehiko Kobayashi, Seiichi Shimoura
  • Publication number: 20030184191
    Abstract: In a method of producing a micro-actuator, a first adhesive is applied to a movable plate, and a movable electrode is placed on the first adhesive. The movable plate and the movable electrode are clamped between a first stage and a first head, followed by heating for a first predetermined period of time while exerting a first predetermined press load onto the first head, to semi-cure the first adhesive. A second adhesive is applied to the movable electrode, and a piezoelectric element is placed on the second adhesive. The movable plate, the movable electrode and the piezoelectric element are clamped between the first stage and a second head, followed by heating for a second predetermined period of time while exerting a second predetermined press load onto the second head to semi-cure the second adhesive. Next, a third adhesive is applied to an actuator base, a base electrode is placed on the third adhesive, and the third adhesive is semi-cured in the same manner as above.
    Type: Application
    Filed: June 12, 2003
    Publication date: October 2, 2003
    Applicant: Fujitsu Limited
    Inventors: Masanao Fujii, Toru Okada, Masayuki Kitajima, Hidehiko Kobayashi, Seiichi Shimoura
  • Publication number: 20030173411
    Abstract: A first plate material is set on a work stage. The first plate material includes first components commonly connected to a first connection member. A second plate material is subsequently set on the work stage. The second plate material includes second components commonly connected to a second connection member. The second components are superposed on the corresponding first components. The first components as well as the second components can be handled as a one-piece component. It leads to an improved productivity. Heat surfaces of a heat block contact the second components. The connection members are prevented from thermal expansion. The constant intervals are reliably maintained between the adjacent first components and the adjacent second components.
    Type: Application
    Filed: July 19, 2002
    Publication date: September 18, 2003
    Applicant: FUJITSU LIMITED
    Inventors: Masanao Fujii, Toru Okada, Hidehiko Kobayashi, Seiichi Shimoura
  • Publication number: 20030137223
    Abstract: A method of bonding a piezoelectric element and an electrode, including the steps of forming a first coating of a material selected from the group consisting of Au, Al, Zn, Cu, and Sn on a bonding surface of the piezoelectric element, and forming a second coating of a material selected from the group consisting of Au, Al, Zn, Cu, and Sn on a bonding surface of the electrode. The combination of the materials of the first and second coatings is preferably Au/Au, Au/Al, Zn/Cu, or Sn/Cu. The method further includes the step of bringing the first and second coatings into close contact with each other and heating them under pressure to form a metallic bond or intermetallic compound between the first and second coatings, thereby bonding the piezoelectric element and the electrode.
    Type: Application
    Filed: January 21, 2003
    Publication date: July 24, 2003
    Applicant: Fujitsu Limited
    Inventors: Masayuki Kitajima, Yutaka Noda, Seiichi Shimoura, Toru Okada, Masanao Fujii, Kenji Iketaki, Hidehiko Kobayashi, Masakazu Takesue, Keiichi Yamamoto, Hisao Tanaka
  • Publication number: 20030103169
    Abstract: A body has a configuration in which a first ellipse has a first and second focal points and a second ellipse having a third and fourth points are arranged such that the second and third focal points coincide. This body is equivalent to an optical system having an optical path in which light gathered to the first focal point passes through the first focal point, and is reflected by a first concave reflecting surface, being a part of the first ellipse, to go through the second focal point, and then reflected by a second concave reflecting surface, being a part of the second ellipse, to be gathered to the fourth focal point.
    Type: Application
    Filed: December 4, 2002
    Publication date: June 5, 2003
    Applicant: FUJITSU LIMITED
    Inventors: Toru Okada, Masanao Fujii, Seiichi Shimoura, Shingo Yamaguchi, Haruyasu Watanabe
  • Patent number: 6541898
    Abstract: A method of bonding a piezoelectric element and an electrode, including the steps of forming a first coating of a material selected from the group consisting of Au, Al, Zn, Cu, and Sn on a bonding surface of the piezoelectric element, and forming a second coating of a material selected from the group consisting of Au, Al, Zn, Cu, and Sn on a bonding surface of the electrode. The combination of the materials of the first and second coatings is preferably Au/Au, Au/Al, Zn/Cu, or Sn/Cu. The method further includes the step of bringing the first and second coatings into close contact with each other and heating them under pressure to form a metallic bond or intermetallic compound between the first and second coatings, thereby bonding the piezoelectric element and the electrode.
    Type: Grant
    Filed: March 30, 2001
    Date of Patent: April 1, 2003
    Assignee: Fujitsu Limited
    Inventors: Masayuki Kitajima, Yutaka Noda, Seiichi Shimoura, Toru Okada, Masanao Fujii, Kenji Iketaki, Hidehiko Kobayashi, Masakazu Takesue, Keiichi Yamamoto, Hisao Tanaka
  • Patent number: 6467141
    Abstract: A method of assembling a micro-actuator is provided in which a base frame having a plurality of actuator bases is placed on a stage, a first adhesive is applied to each of the actuator bases, and a base electrode frame having a plurality of base electrodes is placed on the first adhesive. The first adhesive is semi-cured by heating and pressing. A second adhesive is applied to each of the base electrodes, and a plurality of piezoelectric elements are placed on the second adhesive. The second adhesive is semi-cured by heating and pressing. A third adhesive is,applied to the piezoelectric elements, and a movable electrode frame having a plurality of movable electrodes is placed on the third adhesive. The third adhesive is semi-cured by heating and pressing. Next, a fourth adhesive is applied to each of the movable electrodes, and a hinge plate frame having a plurality of hinge plates is placed on the fourth adhesive. The fourth adhesive is semi-cured by heating and pressing.
    Type: Grant
    Filed: March 29, 2001
    Date of Patent: October 22, 2002
    Assignee: Fujitsu Limited
    Inventors: Toru Okada, Kenji Iketaki, Hidehiko Kobayashi, Yutaka Noda, Masayuki Kitajima, Seiichi Shimoura, Masakazu Takesue, Keiichi Yamamoto, Hisao Tanaka, Masanao Fujii
  • Publication number: 20020074902
    Abstract: A method of bonding a piezoelectric element and an electrode, including the steps of forming a first coating of a material selected from the group consisting of Au, Al, Zn, Cu, and Sn on a bonding surface of the piezoelectric element, and forming a second coating of a material selected from the group consisting of Au, Al, Zn, Cu, and Sn on a bonding surface of the electrode. The combination of the materials of the first and second coatings is preferably Au/Au, Au/Al, Zn/Cu, or Sn/Cu. The method further includes the step of bringing the first and second coatings into close contact with each other and heating them under pressure to form a metallic bond or intermetallic compound between the first and second coatings, thereby bonding the piezoelectric element and the electrode.
    Type: Application
    Filed: March 30, 2001
    Publication date: June 20, 2002
    Applicant: FUJITSU LIMITED
    Inventors: Masayuki Kitajima, Yutaka Noda, Seiichi Shimoura, Toru Okada, Masanao Fujii, Kenji Iketaki, Hidehiko Kobayaski, Masakazu Takesue, Keiichi Yamamoto, Hisao Tanaka
  • Publication number: 20020059717
    Abstract: A method of assembling a micro-actuator is provided in which a base frame having a plurality of actuator bases is placed on a stage, a first adhesive is applied to each of the actuator bases, and a base electrode frame having a plurality of base electrodes is placed on the first adhesive. The first adhesive is semi-cured by heating and pressing. A second adhesive is applied to each of the base electrodes, and a plurality of piezoelectric elements are placed on the second adhesive. The second adhesive is semi-cured by heating and pressing. A third adhesive is applied to the piezoelectric elements, and a movable electrode frame having a plurality of movable electrodes is placed on the third adhesive. The third adhesive is semi-cured by heating and pressing. Next, a fourth adhesive is applied to each of the movable electrodes, and a hinge plate frame having a plurality of hinge plates is placed on the fourth adhesive. The fourth adhesive is semi-cured by heating and pressing.
    Type: Application
    Filed: March 29, 2001
    Publication date: May 23, 2002
    Applicant: FUJITSU LIMITED
    Inventors: Toru Okada, Kenji Iketaki, Hidehiko Kobayashi, Yutaka Noda, Masayuki Kitajima, Seiichi Shimoura, Masakazu Takesue, Keiichi Yamamoto, Hisao Tanaka, Masanao Fujii
  • Publication number: 20020050767
    Abstract: In a method of producing a micro-actuator, a first adhesive is applied to a movable plate, and a movable electrode is placed on the first adhesive. The movable plate and the movable electrode are clamped between a first stage and a first head, followed by heating for a first predetermined period of time while exerting a first predetermined press load onto the first head to semi-cure the first adhesive. A second adhesive is applied to the movable electrode, and a piezoelectric element is placed on the second adhesive. The movable plate, the movable electrode and the piezoelectric element are clamped between the first stage and a second head, followed by heating for a second predetermined period of time while exerting a second predetermined press load onto the second head to semi-cure the second adhesive. Next, a third adhesive is applied to an actuator base, a base electrode is placed on the third adhesive, and the third adhesive is semi-cured in the same manner as above.
    Type: Application
    Filed: March 30, 2001
    Publication date: May 2, 2002
    Applicant: FUJITSU LIMITED
    Inventors: Masanao Fujii, Toru Okada, Masayuki Kitajima, Hidehiko Kobayashi, Seiichi Shimoura