Patents by Inventor Yukihito Yamashita

Yukihito Yamashita 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: 8806728
    Abstract: Method for producing a laminated ceramic electronic component including: forming a laminated body by layering and press-bonding a plurality of ceramic green sheets to become a protective layer and a plurality of the ceramic green sheets with metal paste printed thereon, forming an extended part by printing and drying a conductive paste for the extended part on the main face of the laminated body, forming a laminated ceramic element by cutting off the laminated body with the extended part formed and separating the laminated body into fragments, and forming a curled part by applying a conductive paste for the curled part on said end face of said laminated ceramic element. In the step of forming the laminated body, the laminated body is press-bonded so that the main face of the lead part of the laminated body is positioned lower than the main face of the function part.
    Type: Grant
    Filed: June 1, 2011
    Date of Patent: August 19, 2014
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Tomoya Sakaguchi, Yukihito Yamashita
  • Publication number: 20110226403
    Abstract: A laminated ceramic electronic component includes a ceramic element and two external electrodes on both end surfaces of the ceramic element. The ceramic element includes a function part and lead parts thinner than the function part. Internal electrode layers are provided facing each other via a ceramic layer therebetween in the function part. The internal electrode layers are drawn out of the function part in the lead part. The external electrode includes an extended part and a curled part. The extended part is formed from the lead part through the function part on the main face. On the main face, the part of the extended part in the lead part is lower than the part of the function part. The curled part is formed from the end face of the ceramic element through the surface of the part of the extended part in the lead part on the main face.
    Type: Application
    Filed: June 1, 2011
    Publication date: September 22, 2011
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventors: Tomoya SAKAGUCHI, Yukihito YAMASHITA
  • Patent number: 7969709
    Abstract: A laminated ceramic electronic component includes a ceramic element and two external electrodes on both end surfaces of the ceramic element. The ceramic element includes a function part and lead parts thinner than the function part. Internal electrode layers are provided facing each other via a ceramic layer therebetween in the function part. The internal electrode layers are drawn out of the function part in the lead part. The external electrode includes an extended part and a curled part. The extended part is formed from the lead part through the function part on the main face. On the main face, the part of the extended part in the lead part is lower than the part of the function part. The curled part is formed from the end face of the ceramic element through the surface of the part of the extended part in the lead part on the main face.
    Type: Grant
    Filed: April 1, 2009
    Date of Patent: June 28, 2011
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Tomoya Sakaguchi, Yukihito Yamashita
  • Publication number: 20090284896
    Abstract: A laminated ceramic electronic component includes a ceramic element and two external electrodes on both end surfaces of the ceramic element. The ceramic element includes a function part and lead parts thinner than the function part. Internal electrode layers are provided facing each other via a ceramic layer therebetween in the function part. The internal electrode layers are drawn out of the function part in the lead part. The external electrode includes an extended part and a curled part. The extended part is formed from the lead part through the function part on the main face. On the main face, the part of the extended part in the lead part is lower than the part of the function part. The curled part is formed from the end face of the ceramic element through the surface of the part of the extended part in the lead part on the main face.
    Type: Application
    Filed: April 1, 2009
    Publication date: November 19, 2009
    Applicant: PANASONIC CORPORATION
    Inventors: Tomoya Sakaguchi, Yukihito Yamashita
  • Patent number: 6437579
    Abstract: A method for screening multi-layered ceramic capacitors having internal defects at a high accuracy by superposing a direct-current constant current between external electrodes of a multi-layered ceramic capacitor having a defective part in an effective layer of the dielectric ceramic, raising the voltage between the external electrodes, and further feeding the direct-current constant current for a specific time after the voltage curve becomes flat, capacitors experiencing a sudden drop in the voltage between the external electrodes during the feeding time are sorted out and removed as a defective product.
    Type: Grant
    Filed: November 29, 2000
    Date of Patent: August 20, 2002
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yukihito Yamashita, Akira Omi, Takeshi Iino, Shigeki Inagaki, Tatsuro Kikuchi, Yoshinori Tomita