Patents by Inventor Hiromu Kusunoki

Hiromu Kusunoki 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: 6709892
    Abstract: A fabrication method for an electronic device includes four steps. The first step is for preparing a leadframe with first and second conductive members. The second step is for connecting a first and a second electronic chips to the first and the second conductive members, respectively. For the third step, the first chip is enclosed by a first resin package allowing partial exposure of the first conductive member, while the second chip by a second resin package spaced from the first package. For the fourth step, the exposed part of the first conductive member is cut. The cutting is performed using first and second tools, where the first tool makes an indentation in the exposed part on a first side. On another side opposite to the first side, the second tool makes a full cut to be linked with the indentation.
    Type: Grant
    Filed: September 10, 2002
    Date of Patent: March 23, 2004
    Assignee: Rohm Co., Ltd.
    Inventors: Masahiko Kobayakawa, Masahide Maeda, Hiromu Kusunoki
  • Publication number: 20030071365
    Abstract: A fabrication method for an electronic device includes four steps. The first step is for preparing a leadframe with first and second conductive members. The second step is for connecting a first and a second electronic chips to the first and the second conductive members, respectively. For the third step, the first chip is enclosed by a first resin package allowing partial exposure of the first conductive member, while the second chip by a second resin package spaced from the first package. For the fourth step, the exposed part of the first conductive member is cut. The cutting is performed using first and second tools, where the first tool makes an indentation in the exposed part on a first side. On another side opposite to the first side, the second tool makes a full cut to be linked with the indentation.
    Type: Application
    Filed: September 10, 2002
    Publication date: April 17, 2003
    Applicant: ROHM CO., LTD.
    Inventors: Masahiko Kobayakawa, Masahide Maeda, Hiromu Kusunoki