Patents by Inventor Hironao Oku

Hironao Oku 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: 10622528
    Abstract: A light-emitting device includes: a resin package including: a lead part including a first lead and a second lead, each including a main body portion and a raised portion connected to the main body portion, wherein an upper surface of each of the first lead and the second lead includes a first primary surface portion in the main body portion and a curved portion in the raised portion in a cross-sectional view taken in a direction perpendicular to an upper surface of the lead part, and wherein the curved portion is continuous with and curved upward from an end portion of the first primary surface portion, a resin portion, and a recess defined by a portion of the upper surface of the lead part and the resin portion; and a light-emitting element mounted in the resin package. The curved portion is buried in the resin portion.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: April 14, 2020
    Assignee: NICHIA CORPORATION
    Inventors: Hironao Oku, Toshiyuki Hashimoto, Mitsuhiro Isono, Takao Ishihara, Takaaki Kato
  • Patent number: 10332824
    Abstract: A lead frame includes: a plurality of units each including a first lead portion and a second lead portion arranged in a first direction, wherein the units are arranged in the first direction and in a second direction perpendicular to the first direction, and the first lead portion and the second lead portion of each unit are adjacent, in the second direction, to the first lead portion and the second lead portion of an adjacent one of the units that is adjacent in the second direction; a plurality of first suspension portions; and a plurality of connecting portions. Each of the first suspension portions connects, in the second direction, the first lead portions of units that are adjacent to each other in the second direction.
    Type: Grant
    Filed: August 20, 2018
    Date of Patent: June 25, 2019
    Assignee: NICHIA CORPORATION
    Inventors: Hironao Oku, Toshiyuki Hashimoto, Mitsuhiro Isono, Takao Ishihara, Takaaki Kato
  • Publication number: 20180374782
    Abstract: A lead frame includes: a plurality of units each including a first lead portion and a second lead portion arranged in a first direction, wherein the units are arranged in the first direction and in a second direction perpendicular to the first direction, and the first lead portion and the second lead portion of each unit are adjacent, in the second direction, to the first lead portion and the second lead portion of an adjacent one of the units that is adjacent in the second direction; a plurality of first suspension portions; and a plurality of connecting portions. Each of the first suspension portions connects, in the second direction, the first lead portions of units that are adjacent to each other in the second direction.
    Type: Application
    Filed: August 20, 2018
    Publication date: December 27, 2018
    Applicant: NICHIA CORPORATION
    Inventors: Hironao OKU, Toshiyuki HASHIMOTO, Mitsuhiro ISONO, Takao ISHIHARA, Takaaki KATO
  • Publication number: 20180269137
    Abstract: A lead frame includes: a plurality of units each including a first lead portion and a second lead portion arranged in a first direction, wherein the units are arranged in the first direction and in a second direction perpendicular to the first direction, and the first lead portion and the second lead portion of each unit are adjacent, in the second direction, to the first lead portion and the second lead portion of an adjacent one of the units that is adjacent in the second direction; a plurality of first suspension portions; and a plurality of connecting portions. Each of the first suspension portions connects, in the second direction, the first lead portions of units that are adjacent to each other in the second direction.
    Type: Application
    Filed: March 16, 2018
    Publication date: September 20, 2018
    Applicant: NICHIA CORPORATION
    Inventors: Hironao OKU, Toshiyuki HASHIMOTO, Mitsuhiro ISONO, Takao ISHIHARA, Takaaki KATO
  • Publication number: 20180269366
    Abstract: A light-emitting device includes: a resin package including: a lead part including a first lead and a second lead, each including a main body portion and a raised portion connected to the main body portion, wherein an upper surface of each of the first lead and the second lead includes a first primary surface portion in the main body portion and a curved portion in the raised portion in a cross-sectional view taken in a direction perpendicular to an upper surface of the lead part, and wherein the curved portion is continuous with and curved upward from an end portion of the first primary surface portion, a resin portion, and a recess defined by a portion of the upper surface of the lead part and the resin portion; and a light-emitting element mounted in the resin package. The curved portion is buried in the resin portion.
    Type: Application
    Filed: March 16, 2018
    Publication date: September 20, 2018
    Applicant: NICHIA CORPORATION
    Inventors: Hironao OKU, Toshiyuki HASHIMOTO, Mitsuhiro ISONO, Takao ISHIHARA, Takaaki KATO
  • Patent number: 10079201
    Abstract: A lead frame includes: a plurality of units each including a first lead portion and a second lead portion arranged in a first direction, wherein the units are arranged in the first direction and in a second direction perpendicular to the first direction, and the first lead portion and the second lead portion of each unit are adjacent, in the second direction, to the first lead portion and the second lead portion of an adjacent one of the units that is adjacent in the second direction; a plurality of first suspension portions; and a plurality of connecting portions. Each of the first suspension portions connects, in the second direction, the first lead portions of units that are adjacent to each other in the second direction.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: September 18, 2018
    Assignee: NICHIA CORPORATION
    Inventors: Hironao Oku, Toshiyuki Hashimoto, Mitsuhiro Isono, Takao Ishihara, Takaaki Kato