Patents by Inventor Mizuki Iwanami

Mizuki Iwanami 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).

  • Magnetic field measuring apparatus capable of measuring at high spatial resolution
    Patent number: 7385393
    Abstract: A condenser lens is incorporated into the end portion of a magnetic field measuring apparatus including a magneto-optical crystal. Alternatively, the end portion of the magnetic field measuring device includes an optical fiber having a core diameter smaller than that of a normal single-mode optical fiber.
    Type: Grant
    Filed: August 27, 2004
    Date of Patent: June 10, 2008
    Assignee: NEC Corporation
    Inventors: Mizuki Iwanami, Shigeki Hoshino, Masahiro Tsuchiya, Masato Kishi
  • Multilayer printed board with a double plane spiral interconnection structure
    Patent number: 6963034
    Abstract: An inductor device having plural spiral-shaped interconnection structures connected to each other and extending in plural power source layers, the power source layers being in different levels of a multilayer printed board. The printed board having first and second current loops. The loops share part of a common current path.
    Type: Grant
    Filed: March 11, 2002
    Date of Patent: November 8, 2005
    Assignee: NEC Corporation
    Inventor: Mizuki Iwanami
  • Magnetic field measuring apparatus capable of measuring at high spatial resolution
    Publication number: 20050190358
    Abstract: A condenser lens is incorporated into the end portion of a magnetic field measuring apparatus including a magneto-optical crystal. Alternatively, the end portion of the magnetic field measuring device includes an optical fiber having a core diameter smaller than that of a normal single-mode optical fiber.
    Type: Application
    Filed: August 27, 2004
    Publication date: September 1, 2005
    Inventors: Mizuki Iwanami, Shigeki Hoshino, Masahiro Tsuchiya, Masato Kishi
  • Interlayer structure with multiple insulative layers with different frequency characteristics
    Patent number: 6603668
    Abstract: An inter-layer structure between a power layer and a ground layer of a printed circuit board includes an insulative magnetic structure with at least two layers of insulative magnetic substances with different complex magnetic permeability frequency characteristics.
    Type: Grant
    Filed: March 15, 2002
    Date of Patent: August 5, 2003
    Assignee: NEC Corporation
    Inventor: Mizuki Iwanami
  • Multilayer printed board with a double plane spiral interconnection structure
    Publication number: 20020109573
    Abstract: An inductor device having plural spiral-shaped interconnection structures connected to each other and extending in plural power source layers, the power source layers being in different levels of a multilayer printed board. The printed board having first and second current loops. The loops share part of a common current path.
    Type: Application
    Filed: March 11, 2002
    Publication date: August 15, 2002
    Applicant: NEC CORPORATION
    Inventor: Mizuki Iwanami
  • Interlayer structure with multiple insulative layers with different frequency characteristics
    Publication number: 20020089798
    Abstract: The present invention provides an inter-layer structure between a power layer and a ground layer. The inter-layer structure comprises an insulative magnetic layered structure which comprises at least two insulative magnetic substances which are different in frequency characteristic of complex magnetic permeability.
    Type: Application
    Filed: March 15, 2002
    Publication date: July 11, 2002
    Applicant: NEC CORPORATION
    Inventor: Mizuki Iwanami
  • Printed circuit board with multiple insulative magnetic layers
    Patent number: 6396713
    Abstract: An inter-layer structure between a power layer and a ground layer of a printed circuit board includes an insulative magnetic structure with at least two layers of insulative magnetic substances with different complex magnetic permeability frequency characteristics.
    Type: Grant
    Filed: December 6, 1999
    Date of Patent: May 28, 2002
    Assignee: NEC Corporation
    Inventor: Mizuki Iwanami
  • Multilayer printed board with a double plane spiral interconnection structure
    Patent number: 6384706
    Abstract: An inductor device having plural spiral-shaped interconnection structures connected to each other and extending in plural power source layers, the power source layers being in different levels of a multilayer printed board. The printed board having first and second current loops. The loops share part of a common current path.
    Type: Grant
    Filed: May 11, 2000
    Date of Patent: May 7, 2002
    Assignee: NEC Corporation
    Inventor: Mizuki Iwanami