Patents by Inventor Takafumi Hashitani

Takafumi Hashitani 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: 7403024
    Abstract: A contactor has contact electrodes elastically deformable in a direction of thickness of the contactor so that the contactor can make a contact with a semiconductor device with an appropriate contact pressure. The contactor is positioned between the semiconductor device and a test board so as to electrically connect the semiconductor device to the test board. Each of a plurality of contact electrodes has a first contact electrode part, a second contact electrode part and a connecting part electrically connecting the first contact electrode part to the second contact electrode part. The first contact electrode part contacts an electrode of the semiconductor device. The second contact electrode part contacts a terminal of the test board. A combining member has an insulating characteristic and holds the connecting part of each of the contact electrodes in a predetermined arrangement.
    Type: Grant
    Filed: July 28, 2004
    Date of Patent: July 22, 2008
    Assignee: Fujitsu Limited
    Inventors: Shigeyuki Maruyama, Kazuhiro Tashiro, Naoyuki Watanabe, Daisuke Koizumi, Takafumi Hashitani, Ei Yano
  • Patent number: 7267559
    Abstract: An anisotropic conductive sheet comprising an insulating base material and a plurality of conductive passages embedded at predetermined positions in the insulating base material, penetrating the insulating base material in the thickness direction. The conductive passage comprises a matrix consisting of non-silicone material or silicone material having rubber elasticity, the matrix material being filled into through-holes formed at a predetermined position in the base material and then hardened, and a conductive filler dispersed in the matrix at an amount capable of exhibiting conductivity at all times. A surface layer of conductive material is capable of functioning as a contact and ensuring an electrical connection by piercing a surface layer of an opponent when the surface layer is used as a contact, such as a layer of fine conductive particles is further provided on at least one of the end faces of the conductive passage.
    Type: Grant
    Filed: May 10, 2002
    Date of Patent: September 11, 2007
    Assignee: Fujitsu Limited
    Inventors: Takafumi Hashitani, Shigeyuki Maruyama
  • Patent number: 7202679
    Abstract: A contactor is provided which contactor comprises an insulating substrate, a concave portion formed in the insulating substrate and extending in a perpendicular direction from a surface thereof, and elastic conductive particles disposed in the concave portion. A part of one of the conductive particles protrudes from the surface of the insulating substrate.
    Type: Grant
    Filed: January 9, 2006
    Date of Patent: April 10, 2007
    Assignee: Fujitsu Limited
    Inventors: Shigeyuki Maruyama, Susumu Kida, Naoyuki Watanabe, Takafumi Hashitani, Ei Yano, Ichiro Midorikawa
  • Publication number: 20060119374
    Abstract: A contactor is provided which contactor comprises an insulating substrate, a concave portion formed in the insulating substrate and extending in a perpendicular direction from a surface thereof, and elastic conductive particles disposed in the concave portion. A part of one of the conductive particles protrudes from the surface of the insulating substrate.
    Type: Application
    Filed: January 9, 2006
    Publication date: June 8, 2006
    Applicant: FUJITSU LIMITED
    Inventors: Shigeyuki Maruyama, Susumu Kida, Naoyuki Watanabe, Takafumi Hashitani, Ei Yano, Ichiro Midorikawa
  • Patent number: 7038477
    Abstract: A contactor is provided which contactor comprises an insulating substrate, a concave portion formed in the insulating substrate and extending in a perpendicular direction from a surface thereof, and elastic conductive particles disposed in the concave portion. A part of one of the conductive particles protrudes from the surface of the insulating substrate.
    Type: Grant
    Filed: December 29, 2004
    Date of Patent: May 2, 2006
    Assignee: Fujitsu Limited
    Inventors: Shigeyuki Maruyama, Susumu Kida, Naoyuki Watanabe, Takafumi Hashitani, Ei Yano, Ichiro Midorikawa
  • Patent number: 6937038
    Abstract: A contactor is provided which contactor comprises an insulating substrate, a concave portion formed in the insulating substrate and extending in a perpendicular direction from a surface thereof, and elastic conductive particles disposed in the concave portion. A part of one of the conductive particles protrudes from the surface of the insulating substrate.
    Type: Grant
    Filed: February 26, 2003
    Date of Patent: August 30, 2005
    Assignee: Fujitsu Limited
    Inventors: Shigeyuki Maruyama, Susumu Kida, Naoyuki Watanabe, Takafumi Hashitani, Ei Yano, Ichiro Midorikawa
  • Patent number: 6927343
    Abstract: A contactor has a film substrate of an insulating material and plural wiring patterns on the substrate. A first end of each wiring pattern extends out from a first edge of the substrate as a first contact terminal and a second end of each wiring pattern extends out from a second edge of the substrate as a second contact terminal, and a part of the contactor located between the first end and second end can be deformed resiliently.
    Type: Grant
    Filed: October 9, 2002
    Date of Patent: August 9, 2005
    Assignee: Fujitsu Limited
    Inventors: Naoyuki Watanabe, Shigeyuki Maruyama, Kazuhiro Tashiro, Daisuke Koizumi, Takafumi Hashitani
  • Publication number: 20050110509
    Abstract: A contactor is provided which contactor comprises an insulating substrate, a concave portion formed in the insulating substrate and extending in a perpendicular direction from a surface thereof, and elastic conductive particles disposed in the concave portion. A part of one of the conductive particles protrudes from the surface of the insulating substrate.
    Type: Application
    Filed: December 29, 2004
    Publication date: May 26, 2005
    Applicant: FUJITSU LIMITED
    Inventors: Shigeyuki Maruyama, Susumu Kida, Naoyuki Watanabe, Takafumi Hashitani, Ei Yano, Ichiro Midorikawa
  • Patent number: 6889163
    Abstract: A system for assessing an environmental load includes an image acquisition unit which acquires image data of an image of a component-implemented circuit board subjected to assessment, a component database which includes matching-purpose data and environmental load data with respect to a plurality of components, and a matching unit which matches the image data with the matching-purpose data of the component database to identify individual components on the component-implemented circuit board subjected to assessment, and extracts the environmental load data belonging to the identified individual components from the component database, thereby obtaining the environmental load of the component-implemented circuit board subjected to assessment.
    Type: Grant
    Filed: June 18, 2003
    Date of Patent: May 3, 2005
    Assignee: Fujitsu Limited
    Inventors: Takafumi Hashitani, Sachio Ido, Tsuyoshi Mita, Shigeharu Suzuki
  • Publication number: 20040266272
    Abstract: A contactor has contact electrodes elastically deformable in a direction of thickness of the contactor so that the contactor can make a contact with a semiconductor device with an appropriate contact pressure. The contactor is positioned between the semiconductor device and a test board so as to electrically connect the semiconductor device to the test board. Each of a plurality of contact electrodes has a first contact electrode part, a second contact electrode part and a connecting part electrically connecting the first contact electrode part to the second contact electrode part. The first contact electrode part contacts an electrode of the semiconductor device. The second contact electrode part contacts a terminal of the test board. A combining member has an insulating characteristic and holds the connecting part of each of the contact electrodes in a predetermined arrangement.
    Type: Application
    Filed: July 28, 2004
    Publication date: December 30, 2004
    Applicant: FUJITSU LIMITED
    Inventors: Shigeyuki Maruyama, Kazuhiro Tashiro, Naoyuki Watanabe, Daisuke Koizumi, Takafumi Hashitani, Ei Yano
  • Patent number: 6791345
    Abstract: A contactor has contact electrodes elastically deformable in a direction of thickness of the contactor so that the contactor can make a contact with a semiconductor device with an appropriate contact pressure. The contactor is positioned between the semiconductor device and a test board so as to electrically connect the semiconductor device to the test board. Each of a plurality of contact electrodes has a first contact electrode part, a second contact electrode part and a connecting part electrically connecting the first contact electrode part to the second contact electrode part. The first contact electrode part contacts an electrode of the semiconductor device. The second contact electrode part contacts a terminal of the test board. A combining member has an insulating characteristic and holds the connecting part of each of the contact electrodes in a predetermined arrangement.
    Type: Grant
    Filed: January 31, 2002
    Date of Patent: September 14, 2004
    Assignee: Fujitsu Limited
    Inventors: Shigeyuki Maruyama, Kazuhiro Tashiro, Naoyuki Watanabe, Daisuke Koizumi, Takafumi Hashitani, Ei Yano
  • Publication number: 20040039529
    Abstract: A system for assessing an environmental load includes an image acquisition unit which acquires image data of an image of a component-implemented circuit board subjected to assessment, a component database which includes matching-purpose data and environmental load data with respect to a plurality of components, and a matching unit which matches the image data with the matching-purpose data of the component database to identify individual components on the component-implemented circuit board subjected to assessment, and extracts the environmental load data belonging to the identified individual components from the component database, thereby obtaining the environmental load of the component-implemented circuit board subjected to assessment.
    Type: Application
    Filed: June 18, 2003
    Publication date: February 26, 2004
    Applicant: FUJITSU LIMITED
    Inventors: Takafumi Hashitani, Sachio Ido, Tsuyoshi Mita, Shigeharu Suzuki
  • Publication number: 20030141884
    Abstract: A contactor is provided which contactor comprises an insulating substrate, a concave portion formed in the insulating substrate and extending in a perpendicular direction from a surface thereof, and elastic conductive particles disposed in the concave portion. A part of one of the conductive particles protrudes from the surface of the insulating substrate.
    Type: Application
    Filed: February 26, 2003
    Publication date: July 31, 2003
    Applicant: Fujitsu Limited
    Inventors: Shigeyuki Maruyama, Susumu Kida, Naoyuki Watanabe, Takafumi Hashitani, Ei Yano, Ichiro Midorikawa
  • Publication number: 20030127246
    Abstract: A contactor comprises a film substrate of an insulating material and plural wiring patterns on the substrate, wherein a first end of each wiring pattern extends out from a first edge of the substrate as a first contact terminal and a second end of each wiring pattern extends out from a second edge of the substrate as a second contact terminal, and a part of the contactor located between the first end and second end can be deformed resiliently.
    Type: Application
    Filed: October 9, 2002
    Publication date: July 10, 2003
    Applicant: FUJITSU LIMITED
    Inventors: Naoyuki Watanabe, Shigeyuki Maruyama, Kazuhiro Tashiro, Daisuke Koizumi, Takafumi Hashitani
  • Patent number: 6545363
    Abstract: A contactor is provided which contactor comprises an insulating substrate, a concave portion formed in the insulating substrate and extending in a perpendicular direction from a surface thereof, and elastic conductive particles disposed in the concave portion. A part of one of the conductive particles protrudes from the surface of the insulating substrate.
    Type: Grant
    Filed: January 8, 2001
    Date of Patent: April 8, 2003
    Assignee: Fujitsu Limited
    Inventors: Shigeyuki Maruyama, Susumu Kida, Naoyuki Watanabe, Takafumi Hashitani, Ei Yano, Ichiro Midorikawa
  • Publication number: 20020191406
    Abstract: An anisotropic conductive sheet comprising an insulating base material and a plurality of conductive passages embedded at predetermined positions in the insulating base material, penetrating the insulating base material in the thickness direction. The conductive passage comprises a matrix consisting of non-silicone material or silicone material having rubber elasticity, the matrix material being filled into through-holes formed at a predetermined position in the base material and then hardened, and a conductive filler dispersed in the matrix at an amount capable of exhibiting conductivity at all times. A surface layer of conductive material is capable of functioning as a contact and ensuring an electrical connection by piercing a surface layer of an opponent when the surface layer is used as a contact, such as a layer of fine conductive particles is further provided on at least one of the end faces of the conductive passage.
    Type: Application
    Filed: May 10, 2002
    Publication date: December 19, 2002
    Applicant: FUJITSU LIMITED
    Inventors: Takafumi Hashitani, Shigeyuki Maruyama
  • Publication number: 20020105347
    Abstract: A contactor has contact electrodes elastically deformable in a direction of thickness of the contactor so that the contactor can make a contact with a semiconductor device with an appropriate contact pressure. The contactor is positioned between the semiconductor device and a test board so as to electrically connect the semiconductor device to the test board. Each of a plurality of contact electrodes has a first contact electrode part, a second contact electrode part and a connecting part electrically connecting the first contact electrode part to the second contact electrode part. The first contact electrode part contacts an electrode of the semiconductor device. The second contact electrode part contacts a terminal of the test board. A combining member has an insulating characteristic and holds the connecting part of each of the contact electrodes in a predetermined arrangement.
    Type: Application
    Filed: January 31, 2002
    Publication date: August 8, 2002
    Applicant: Fujitsu Limited
    Inventors: Shigeyuki Maruyama, Kazuhiro Tashiro, Naoyuki Watanabe, Daisuke Koizumi, Takafumi Hashitani, Ei Yano
  • Publication number: 20020013010
    Abstract: A contactor is provided which contactor comprises an insulating substrate, a concave portion formed in the insulating substrate and extending in a perpendicular direction from a surface thereof, and elastic conductive particles disposed in the concave portion. A part of one of the conductive particles protrudes from the surface of the insulating substrate.
    Type: Application
    Filed: January 8, 2001
    Publication date: January 31, 2002
    Applicant: Fujitsu Limited
    Inventors: Shigeyuki Maruyama, Susumu Kida, Naoyuki Watanabe, Takafumi Hashitani, Ei Yano, Ichiro Midorikawa
  • Patent number: 5744516
    Abstract: A biodegradable resin molded article molded from a kneaded material obtained by kneading, melting or mixing a biodegradable resin raw material and at least one of a biodegradable additive and an additive made of a substance existing in the nature, an injection molded article of a biodegradable resin containing a biodegradable resin and an anti-biotic substance, a molded article of a resin composition including a polymer material having an ester bond in the polymer main chain thereof and an alkali or acid component in an amount effective for neutralizing an acidic or alkaline component contained in the polymer material, and a resin molded article having a layer of a biodegradable resin, and a layer of a photolytic resin covering the resin layer and containing an antibiotic.
    Type: Grant
    Filed: September 11, 1996
    Date of Patent: April 28, 1998
    Assignee: Fujitsu Limited
    Inventors: Takafumi Hashitani, Shozo Fujita, Makoto Iijima, Koji Asano
  • Patent number: 5545485
    Abstract: A biodegradable resin molded article molded from a kneaded material obtained by kneading, melting or mixing a biodegradable resin raw material and at least one of a biodegradable additive and an additive made of a substance existing in the nature, an injection molded article of a biodegradable resin containing a biodegradable resin and an anti-biotic substance, a molded article of a resin composition including a polymer material having an ester bond in the polymer main chain thereof and an alkali or acid component in an amount effective for neutralizing an acidic or alkaline component contained in the polymer material, and a resin molded article having a layer of a biodegradable resin, and a layer of a photolytic resin covering the resin layer and containing an antibiotic.
    Type: Grant
    Filed: May 17, 1995
    Date of Patent: August 13, 1996
    Assignee: Fujitsu Limited
    Inventors: Takafumi Hashitani, Shozo Fujita, Makoto Iijima, Koji Asano