Patents by Inventor Katsunori Kontani

Katsunori Kontani 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: 7842529
    Abstract: In a method for manufacturing a III-V nitride compound semiconductor light emitting element, light emitting element regions (21) are formed in a low dislocation region on the III-V nitride compound semiconductor substrate wherein high density dislocation sections (22) and low dislocation regions are alternately arranged repeatedly, so that stripe-shaped light emitting regions are in parallel to the direction wherein the high density dislocation sections (22) extend, and then the substrate is broken, after making two scribe lines (23) to have the high density dislocation section (22) in between, on a plane (25) on the opposite side to a plane (24) whereupon the element regions (21) are formed. Thus, chips are separated and the high density dislocation sections (22) can be removed. The pitch of the two scribe lines is preferably 100 ?m or more.
    Type: Grant
    Filed: May 15, 2006
    Date of Patent: November 30, 2010
    Assignees: Tottori Sanyo Electric Co., Ltd., Sanyo Electric Co., Ltd.
    Inventor: Katsunori Kontani
  • Publication number: 20090087934
    Abstract: In a method for manufacturing a III-V nitride compound semiconductor light emitting element, light emitting element regions (21) are formed in a low dislocation region on the III-V nitride compound semiconductor substrate wherein high density dislocation sections (22) and low dislocation regions are alternately arranged repeatedly, so that stripe-shaped light emitting regions are in parallel to the direction wherein the high density dislocation sections (22) extend, and then the substrate is broken, after making two scribe lines (23) to have the high density dislocation section (22) in between, on a plane (25) on the opposite side to a plane (24) whereupon the element regions (21) are formed. Thus, chips are separated and the high density dislocation sections (22) can be removed. The pitch of the two scribe lines is preferably 100 ?m or more.
    Type: Application
    Filed: May 15, 2006
    Publication date: April 2, 2009
    Applicants: SANYO ELELCTRIC CO., LTD., TOTTORI SANYO ELECTRIC CO., LTD.
    Inventor: Katsunori Kontani