Patents by Inventor Yoichi Urakawa

Yoichi Urakawa 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: 9689915
    Abstract: A probe card apparatus can comprise a tester interface to a test controller, probes for contacting terminals of electronic devices to be tested, and electrical connections there between. The probe card apparatus can comprise a primary sub-assembly, which can include the tester interface. The probe card apparatus can also comprise an interchangeable probe head, which can include the probes. The interchangeable probe head can be attached to and detached from the primary sub-assembly while the primary sub-assembly is secured to or in a housing of a test system. Different probe heads each having probes disposed in different patterns to test different types of electronic devices can thus be interchanged while the primary sub-assembly is secured to or in a housing of the test system.
    Type: Grant
    Filed: May 12, 2014
    Date of Patent: June 27, 2017
    Assignee: FormFactor, Inc.
    Inventors: Toshihiro Kasai, Masanori Watanabe, Yoichi Urakawa
  • Patent number: 8203351
    Abstract: A probing apparatus can comprise a substrate, conductive signal traces, probes, and electromagnetic shielding. The substrate can have a first surface and a second surface opposite the first surface, and the electrically conductive first signal traces can be disposed on the first surface of the first substrate. The probes can be attached to the first signal traces, and the electromagnetic shielding structures can be disposed about the signal traces.
    Type: Grant
    Filed: May 19, 2010
    Date of Patent: June 19, 2012
    Assignee: FormFactor, Inc.
    Inventors: Benjamin N. Eldridge, Carl V. Reynolds, Takao Saeki, Yoichi Urakawa
  • Publication number: 20110318256
    Abstract: A method and apparatus for continuously synthesizing oriented carbon nanotubes, with which oriented carbon nanotubes can be stably synthesized in large quantities, is presented. The method and apparatus for continuously synthesizing oriented carbon nanotubes comprise: a coating and drying step in which a catalyst liquid is applied and dried to form a catalyst layer on a substrate surface; a catalyst substrate formation step in which the catalyst layer is heated to form a catalyst substrate having a catalyst particle layer on the substrate surface; a synthesis step in which a raw material gas heated to a temperature equal to or higher than a synthesis temperature for the oriented carbon nanotubes is brought into contact with the surface of the catalyst substrate to synthesize oriented carbon nanotubes; and a collection step in which the oriented carbon nanotubes are collected.
    Type: Application
    Filed: March 12, 2010
    Publication date: December 29, 2011
    Applicants: TAIYO NIPPON SANSO CORPORATION, OSAKA UNIVERSITY
    Inventors: Yoshikazu Nakayama, Toru Sakai, Takeru Yajima, Yoichi Urakawa, Kenichi Kon, Takeshi Nagasaka
  • Patent number: 7843202
    Abstract: Methods and apparatus for testing semiconductor devices are provided herein. In some embodiments, an assembly for testing semiconductor devices can include a probe card assembly; and a thermal barrier disposed proximate an upper surface of the probe card assembly, the thermal barrier can restrict thermal transfer between tester side boundary conditions and portions of the probe card assembly disposed beneath the thermal barrier.
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: November 30, 2010
    Assignee: FormFactor, Inc.
    Inventors: Eric D. Hobbs, Nobuhiro Kawamata, Andrew W. McFarland, Carl V. Reynolds, Yoichi Urakawa
  • Publication number: 20100225344
    Abstract: A probing apparatus can comprise a substrate, conductive signal traces, probes, and electromagnetic shielding. The substrate can have a first surface and a second surface opposite the first surface, and the electrically conductive first signal traces can be disposed on the first surface of the first substrate. The probes can be attached to the first signal traces, and the electromagnetic shielding structures can be disposed about the signal traces.
    Type: Application
    Filed: May 19, 2010
    Publication date: September 9, 2010
    Inventors: Benjamin N. Eldridge, Carl V. Reynolds, Takao Saeki, Yoichi Urakawa
  • Patent number: 7724004
    Abstract: A probing apparatus can comprise a substrate, conductive signal traces, probes, and electromagnetic shielding. The substrate can have a first surface and a second surface opposite the first surface, and the electrically conductive first signal traces can be disposed on the first surface of the first substrate. The probes can be attached to the first signal traces, and the electromagnetic shielding structures can be disposed about the signal traces.
    Type: Grant
    Filed: December 1, 2006
    Date of Patent: May 25, 2010
    Assignee: FormFactor, Inc.
    Inventors: Benjamin N. Eldridge, Carl V. Reynolds, Takao Saeki, Yoichi Urakawa
  • Publication number: 20070139061
    Abstract: A probing apparatus can comprise a substrate, conductive signal traces, probes, and electromagnetic shielding. The substrate can have a first surface and a second surface opposite the first surface, and the electrically conductive first signal traces can be disposed on the first surface of the first substrate. The probes can be attached to the first signal traces, and the electromagnetic shielding structures can be disposed about the signal traces.
    Type: Application
    Filed: December 1, 2006
    Publication date: June 21, 2007
    Applicant: FORMFACTOR, INC.
    Inventors: Benjamin Eldridge, Carl Reynolds, Takao Saeki, Yoichi Urakawa