Patents by Inventor Tsutomu Inuduka

Tsutomu Inuduka 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).

  • Common mode choke coil and manufacturing method therefor
    Patent number: 11069468
    Abstract: An object of the present disclosure is to provide a common mode choke coil with high impedance and small variation. A common mode choke coil includes magnetic core having winding core part and a pair of flange parts provided on opposite ends of winding core part, external electrodes formed on each of flange parts, a pair of windings wound on winding core part, with each of the ends being drawn out and joined to one of external electrodes, and magnetic plate joined to the pair of flange parts with adhesive. Magnetic plate has joining parts joined to flange parts and opposing part opposing winding core part, and surface roughness of joining parts is smaller than surface roughness of opposing part.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: July 20, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Tomohiro Fujita, Yuji Yasuoka, Kenji Ueno, Yoshiko Higashi, Tsutomu Inuduka, Kazuhiro Okuda, Ryohei Harada
  • COMMON MODE CHOKE COIL AND MANUFACTURING METHOD THEREFOR
    Publication number: 20190333675
    Abstract: An object of the present disclosure is to provide a common mode choke coil with high impedance and small variation. A common mode choke coil includes magnetic core having winding core part and a pair of flange parts provided on opposite ends of winding core part, external electrodes formed on each of flange parts, a pair of windings wound on winding core part, with each of the ends being drawn out and joined to one of external electrodes, and magnetic plate joined to the pair of flange parts with adhesive. Magnetic plate has joining parts joined to flange parts and opposing part opposing winding core part, and surface roughness of joining parts is smaller than surface roughness of opposing part.
    Type: Application
    Filed: June 23, 2017
    Publication date: October 31, 2019
    Inventors: TOMOHIRO FUJITA, YUJI YASUOKA, KENJI UENO, YOSHIKO HIGASHI, TSUTOMU INUDUKA, KAZUHIRO OKUDA, RYOHEI HARADA
  • Multilayered ceramic component and manufacturing method thereof
    Patent number: 8416049
    Abstract: A laminated ceramic component includes a ferrite magnetic layer and a glass ceramic layer made chiefly of borosilicate glass. The glass ceramic layer is laminated with the ferrite magnetic layer, and has an Ag inner conductor embedded inside. A microscopic region where aluminum and silver coexist is dispersed in the glass ceramic layer.
    Type: Grant
    Filed: October 5, 2009
    Date of Patent: April 9, 2013
    Assignee: Panasonic Corporation
    Inventors: Tsutomu Inuduka, Hironori Motomitsu
  • MULTILAYERED CERAMIC COMPONENT AND MANUFACTURING METHOD THEREOF
    Publication number: 20110181384
    Abstract: A laminated ceramic component includes a ferrite magnetic layer and a glass ceramic layer made chiefly of borosilicate glass. The glass ceramic layer is laminated with the ferrite magnetic layer, and has an Ag inner conductor embedded inside. A microscopic region where aluminum and silver coexist is dispersed in the glass ceramic layer.
    Type: Application
    Filed: October 5, 2009
    Publication date: July 28, 2011
    Inventors: Tsutomu Inuduka, Hironori Motomitsu