Patents by Inventor Masao Tokunari

Masao Tokunari 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: 10598872
    Abstract: A micro-mirror array for optical coupling in a waveguide array including, a transparent body having a slanted portion, a sidewall portion, and a bottom portion, the sidewall portion and the bottom portion each respectively facing the slanted portion, and wherein a complementary shape of a conventional form off-axis mirror is arranged on the slanted portion, and a reflective coating on at least a portion of the complementary shape.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: March 24, 2020
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Jean Benoit Héroux, Masao Tokunari
  • Patent number: 10598874
    Abstract: A technique for fabricating bumps on a substrate is disclosed. A substrate that includes a set of pads formed on a surface thereof is prepared. A bump base is formed on each pad of the substrate. Each bump base has a tip extending outwardly from the corresponding pad. A resist layer is patterned on the substrate to have a set of holes through the resist layer. Each hole is aligned with the corresponding pad and having space configured to surround the tip of the bump base formed on the corresponding pad. The set of the holes in the resist layer is filled with conductive material to form a set of bumps on the substrate. The resist layer is stripped from the substrate with leaving the set of the bumps.
    Type: Grant
    Filed: November 2, 2017
    Date of Patent: March 24, 2020
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Toyohiro Aoki, Takashi Hisada, Eiji Nakamura, Masao Tokunari
  • Patent number: 10418351
    Abstract: Optoelectronic devices and method of forming the same include an optoelectronic component in a substrate layer. An integrated circuit chip is positioned on the substrate layer. A lens is positioned on the substrate layer directly above the optoelectronic component and above at least part of the integrated circuit chip. The lens has a cut-out portion that accommodates the integrated circuit chip.
    Type: Grant
    Filed: May 24, 2018
    Date of Patent: September 17, 2019
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventor: Masao Tokunari
  • Patent number: 10371907
    Abstract: An optical structure includes a substrate including a cavity on a first surface of the substrate, an optical component on the substrate and an adhesive applied to a side of the optical component to fix the optical component to the substrate. The optical component includes a recess on a second surface of the optical component, the second surface is opposed to the first surface of the substrate, and the recess is provided along an edge of the second surface.
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: August 6, 2019
    Assignee: International Business Machines Corporation
    Inventors: Elaine Cyr, Paul F. Fortier, Takashi Hisada, Patrick Jacques, Koji Masuda, Masao Tokunari
  • Patent number: 10365431
    Abstract: An optical interconnect structure and method are provided. The optical interconnect structure includes a plate on which a mirror is formed. The optical interconnect structure further includes a waveguide structure comprising a waveguide core and an opening. The plate is mounted on the waveguide structure such the mirror is inserted in the opening for light coupling (i) from the waveguide core and to an optical element positioned on the plate and (ii) to the waveguide core from the optical element positioned on the plate.
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: July 30, 2019
    Assignee: International Business Machines Corporation
    Inventors: Jean Benoit Héroux, Masao Tokunari
  • Publication number: 20190219768
    Abstract: Optoelectronic coupling systems include an optoelectronic chip mounted on a substrate. The optoelectronic chip has one or more optoelectronic components. An integrated circuit chip is mounted on the substrate in communication with the optoelectronic chip via one or more wires. A lower lens array is positioned over the optoelectronic chip. A lower surface of the lower lens array has a first cut-away portion to accommodate the optoelectronic chip and a second cut-away portion to accommodate the one or more wires. An upper surface of the lower lens array has one or more lower lenses positioned over respective optoelectronic components. An upper lens array is positioned over the lower lens array and has one or more upper lenses positioned over respective lower lenses.
    Type: Application
    Filed: March 26, 2019
    Publication date: July 18, 2019
    Inventors: Hidetoshi Numata, Masao Tokunari
  • Patent number: 10310187
    Abstract: An optoelectronic coupling system and methods of forming the same include an optoelectronic chip mounted on a substrate. The optoelectronic chip includes one or more optoelectronic components. A lower lens array is positioned over the optoelectronic chip and has a lower surface, with a first cut-away portion to accommodate the optoelectronic chip, and an upper surface that has one or more lower lenses positioned over respective optoelectronic components. An upper lens array is positioned over the lower lens array and has comprising one or more upper lenses positioned over respective lower lenses.
    Type: Grant
    Filed: January 9, 2018
    Date of Patent: June 4, 2019
    Assignee: International Business Machines Corporation
    Inventors: Hidetoshi Numata, Masao Tokunari
  • Publication number: 20190162907
    Abstract: An optoelectronic coupling system includes an optoelectronic chip mounted on a substrate, having one or more optoelectronic components. A lower lens array is positioned over the optoelectronic chip and has a lower surface with a first portion at a first height to mount on the substrate and a second portion at a second height, higher than the first height, to accommodate a height of the optoelectronic chip. The lower lens array has an upper surface that comprises one or more lower lenses positioned over respective optoelectronic components of the one or more optoelectronic components. An upper lens array is positioned over the lower lens array and has one or more upper lenses positioned over respective lower lenses.
    Type: Application
    Filed: January 8, 2019
    Publication date: May 30, 2019
    Inventors: Hidetoshi Numata, Masao Tokunari
  • Publication number: 20190137704
    Abstract: A micro-mirror array for optical coupling in a waveguide array including, a transparent body having a slanted portion, a sidewall portion, and a bottom portion, the sidewall portion and the bottom portion each respectively facing the slanted portion, and wherein a complementary shape of a conventional form off-axis mirror is arranged on the slanted portion, and a reflective coating on at least a portion of the complementary shape.
    Type: Application
    Filed: December 28, 2018
    Publication date: May 9, 2019
    Inventors: Jean Benoit Héroux, Masao Tokunari
  • Publication number: 20190137703
    Abstract: A micro-mirror array for optical coupling in a waveguide array including, a transparent body having a slanted portion, a sidewall portion, and a bottom portion, the sidewall portion and the bottom portion each respectively facing the slanted portion, and wherein a complementary shape of a conventional form off-axis mirror is arranged on the slanted portion, and a reflective coating on at least a portion of the complementary shape.
    Type: Application
    Filed: December 28, 2018
    Publication date: May 9, 2019
    Inventors: Jean Benoit Héroux, Masao Tokunari
  • Publication number: 20190131266
    Abstract: A technique for fabricating bumps on a substrate is disclosed. A substrate that includes a set of pads formed on a surface thereof is prepared. A bump base is formed on each pad of the substrate. Each bump base has a tip extending outwardly from the corresponding pad. A resist layer is patterned on the substrate to have a set of holes through the resist layer. Each hole is aligned with the corresponding pad and having space configured to surround the tip of the bump base formed on the corresponding pad. The set of the holes in the resist layer is filled with conductive material to form a set of bumps on the substrate. The resist layer is stripped from the substrate with leaving the set of the bumps.
    Type: Application
    Filed: November 2, 2017
    Publication date: May 2, 2019
    Inventors: Toyohiro Aoki, Takashi Hisada, Eiji Nakamura, Masao Tokunari
  • Publication number: 20190113695
    Abstract: A chip packaging structure that includes an optoelectronic (OE) chip mounted on a first surface of a substrate and whose optically active area is directed laterally; and a lens array for the optoelectronic (OE) chip that is mounted on the first surface of the substrate and faces to the optoelectronic (OE) chip, wherein the lens array has inside a reflector reflecting light from a first direction to a second direction, in which the first direction is substantially perpendicular to the second direction.
    Type: Application
    Filed: October 17, 2017
    Publication date: April 18, 2019
    Inventors: Jean Benoit Heroux, Masao Tokunari
  • Patent number: 10222555
    Abstract: An optoelectronic coupling system and methods of forming the same include an optoelectronic chip mounted on a substrate. The optoelectronic chip includes one or more optoelectronic components. A lower lens array is positioned over the optoelectronic chip and has a lower surface, with a first cut-away portion to accommodate the optoelectronic chip, and an upper surface that has one or more lower lenses positioned over respective optoelectronic components. An upper lens array is positioned over the lower lens array and has comprising one or more upper lenses positioned over respective lower lenses.
    Type: Grant
    Filed: January 10, 2017
    Date of Patent: March 5, 2019
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Hidetoshi Numata, Masao Tokunari
  • Patent number: 10168494
    Abstract: A micro-mirror array for optical coupling in a waveguide array including, a transparent body having a slanted portion, a sidewall portion, and a bottom portion, the sidewall portion and the bottom portion each respectively facing the slanted portion, and wherein a complementary shape of a conventional form off-axis mirror is arranged on the slanted portion, and a reflective coating on at least a portion of the complementary shape.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: January 1, 2019
    Assignee: International Business Machines Corporation
    Inventors: Jean Benoit Héroux, Masao Tokunari
  • Publication number: 20180269193
    Abstract: Optoelectronic devices and method of forming the same include an optoelectronic component in a substrate layer. An integrated circuit chip is positioned on the substrate layer. A lens is positioned on the substrate layer directly above the optoelectronic component and above at least part of the integrated circuit chip. The lens has a cut-out portion that accommodates the integrated circuit chip.
    Type: Application
    Filed: May 24, 2018
    Publication date: September 20, 2018
    Inventor: Masao Tokunari
  • Publication number: 20180259728
    Abstract: An optical structure includes a substrate including a cavity on a first surface of the substrate, an optical component on the substrate and an adhesive applied to a side of the optical component to fix the optical component to the substrate. The optical component includes a recess on a second surface of the optical component, the second surface is opposed to the first surface of the substrate, and the recess is provided along an edge of the second surface.
    Type: Application
    Filed: September 12, 2017
    Publication date: September 13, 2018
    Inventors: Elaine Cyr, Paul F. Fortier, Takashi Hisada, Patrick Jacques, Koji Masuda, Masao Tokunari
  • Publication number: 20180259729
    Abstract: An optical structure includes a substrate including a cavity on a first surface of the substrate, an optical component on the substrate and an adhesive applied to a side of the optical component to fix the optical component to the substrate. The optical component includes a recess on a second surface of the optical component, the second surface is opposed to the first surface of the substrate, and the recess is provided along an edge of the second surface.
    Type: Application
    Filed: April 9, 2018
    Publication date: September 13, 2018
    Inventors: Elaine Cyr, Paul F. Fortier, Takashi Hisada, Patrick Jacques, Koji Masuda, Masao Tokunari
  • Patent number: 10043787
    Abstract: Optoelectronic devices and method of forming the same include an optoelectronic chip in a substrate layer, the optoelectronic chip having one or more optoelectronic components. An integrated circuit chip is positioned on the substrate layer. A lens array is positioned on the substrate layer above the optoelectronic chip and above at least part of the integrated circuit chip. The lens array includes one or more lens positioned directly respective optoelectronic components.
    Type: Grant
    Filed: January 10, 2017
    Date of Patent: August 7, 2018
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventor: Masao Tokunari
  • Publication number: 20180197842
    Abstract: Optoelectronic devices and method of forming the same include an optoelectronic chip in a substrate layer, the optoelectronic chip having one or more optoelectronic components. An integrated circuit chip is positioned on the substrate layer. A lens array is positioned on the substrate layer above the optoelectronic chip and above at least part of the integrated circuit chip. The lens array includes one or more lens positioned directly respective optoelectronic components.
    Type: Application
    Filed: January 10, 2017
    Publication date: July 12, 2018
    Inventor: Masao Tokunari
  • Publication number: 20180196200
    Abstract: An optoelectronic coupling system and methods of forming the same include an optoelectronic chip mounted on a substrate. The optoelectronic chip includes one or more optoelectronic components. A lower lens array is positioned over the optoelectronic chip and has a lower surface, with a first cut-away portion to accommodate the optoelectronic chip, and an upper surface that has one or more lower lenses positioned over respective optoelectronic components. An upper lens array is positioned over the lower lens array and has comprising one or more upper lenses positioned over respective lower lenses.
    Type: Application
    Filed: January 9, 2018
    Publication date: July 12, 2018
    Inventors: Hidetoshi Numata, Masao Tokunari