Patents by Inventor Kazuto Oonami

Kazuto Oonami 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: 8268540
    Abstract: A method of manufacturing a light receiving device 1 includes: providing a resin layer 14 containing a photo curing resin on a transparent substrate 13 where a plurality of transparent substrate portions 13A are integrated so that the resin layer covers the transparent substrate 13; selectively irradiating the resin layer 14 with light, followed by a developing process, so that the resin layer 14 remains in regions of the transparent substrate 13 which surround portions corresponding to regions facing light receiving portions 11 in the transparent substrate portions 13A; dividing the transparent substrate 13 into units of transparent substrate portions 13A so that a plurality of transparent substrate portions 13A are obtained; dividing the base substrate 12 into units of base substrate portions 12A so that a plurality of base substrate portions 12A are obtained; and joining the base substrate portions 12A and the transparent substrate portions 13A via the resin layer 14.
    Type: Grant
    Filed: May 30, 2007
    Date of Patent: September 18, 2012
    Assignee: Sumitomo Bakelite Company, Ltd.
    Inventors: Toyosei Takahashi, Junya Kusunoki, Kazuto Oonami, Mitsuo Sugino, Masakazu Kawata, Rie Takayama, Seiji Oohashi
  • Publication number: 20090226848
    Abstract: A method of manufacturing a light receiving device 1 includes: providing a resin layer 14 containing a photo curing resin on a transparent substrate 13 where a plurality of transparent substrate portions 13A are integrated so that the resin layer covers the transparent substrate 13; selectively irradiating the resin layer 14 with light, followed by a developing process, so that the resin layer 14 remains in regions of the transparent substrate 13 which surround portions corresponding to regions facing light receiving portions 11 in the transparent substrate portions 13A; dividing the transparent substrate 13 into units of transparent substrate portions 13A so that a plurality of transparent substrate portions 13A are obtained; dividing the base substrate 12 into units of base substrate portions 12A so that a plurality of base substrate portions 12A are obtained; and joining the base substrate portions 12A and the transparent substrate portions 13A via the resin layer 14.
    Type: Application
    Filed: May 30, 2007
    Publication date: September 10, 2009
    Inventors: Toyosei Takahashi, Junya Kusunoki, Kazuto Oonami, Mitsuo Sugino, Masakazu Kawata, Rie Takayama, Seiji Oohashi
  • Patent number: 6747360
    Abstract: Conductive hardening resin for a semiconductor device of the present invention contains metal powder for providing electric conduction between electrodes positioned on the front of a semiconductor chip and a wiring material including lead terminals via a conductive plate. The resin has a modulus of elasticity of 2.0×109 Pa or below when hardened. The resin prevents the contact resistance of the metal plate, lead terminals and semiconductor chip from increasing in the event of temperature cycling tests and a pressure cooker tests. Further, the resin frees the metal plate and chip from peel-off and corrosion, respectively.
    Type: Grant
    Filed: June 10, 2003
    Date of Patent: June 8, 2004
    Assignees: NEC Electronics Corporation, Sumitomo Bakelite Co., Ltd.
    Inventors: Akira Fukuizumi, Kazuto Oonami
  • Publication number: 20030214032
    Abstract: Conductive hardening resin for a semiconductor device of the present invention contains metal powder for providing electric conduction between electrodes positioned on the front of a semiconductor chip and a wiring material including lead terminals via a conductive plate. The resin has a modulus of elasticity of 2.0×109 Pa or below when hardened. The resin prevents the contact resistance of the metal plate, lead terminals and semiconductor chip from increasing in the event of temperature cycling tests and a pressure cooker tests. Further, the resin frees the metal plate and chip from peel-off and corrosion, respectively.
    Type: Application
    Filed: June 10, 2003
    Publication date: November 20, 2003
    Applicants: NEC ELECTRONICS CORPORATION, SUMITOMO BAKELITE CO., LTD.
    Inventors: Akira Fukuizumi, Kazuto Oonami
  • Patent number: 6613829
    Abstract: Conductive hardening resin for a semiconductor device of the present invention contains metal powder for providing electric conduction between electrodes positioned on the front of a semiconductor chip and a wiring material including lead terminals via a conductive plate. The resin has a modulus of elasticity of 2.0×109 Pa or below when hardened. The resin prevents the contact resistance of the metal plate, lead terminals and semiconductor chip from increasing in the event of temperature cycling tests and a pressure cooker tests. Further, the resin frees the metal plate and chip from peel-off and corrosion, respectively.
    Type: Grant
    Filed: January 23, 2002
    Date of Patent: September 2, 2003
    Assignees: NEC Electronics Corporation, Sumitomo Bakelite Co., Ltd.
    Inventors: Akira Fukuizumi, Kazuto Oonami
  • Publication number: 20020098625
    Abstract: Conductive hardening resin for a semiconductor device of the present invention contains metal powder for providing electric conduction between electrodes positioned on the front of a semiconductor chip and a wiring material including lead terminals via a conductive plate. The resin has a modulus of elasticity of 2.0×109 Pa or below when hardened. The resin prevents the contact resistance of the metal plate, lead terminals and semiconductor chip from increasing in the event of temperature cycling tests and a pressure cooker tests. Further, the resin frees the metal plate and chip from peel-off and corrosion, respectively.
    Type: Application
    Filed: January 23, 2002
    Publication date: July 25, 2002
    Applicant: NEC CORPORATION
    Inventors: Akira Fukuizumi, Kazuto Oonami