Patents by Inventor Masahiro Abumi

Masahiro Abumi 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: 11782216
    Abstract: An optical connector includes: at least a ferrule and n self-forming optical waveguides, wherein the ferrule includes n optical fiber insertion holes, and optical fibers are each inserted into and included in the optical fiber insertion holes, the number n indicates a natural number not including zero, there are variations in an angle of each optical fiber in a core axial direction and a core gap between adjacent ones of the optical fibers, an end surface of the ferrule is formed with roundness, and end portions of the self-forming optical waveguides are each optically connected to the optical fibers.
    Type: Grant
    Filed: October 4, 2021
    Date of Patent: October 10, 2023
    Assignee: Orbray Co., Ltd.
    Inventors: Tsuyoshi Namekawa, Masahiro Abumi, Satoshi Kano, Keishiro Komatsu
  • Publication number: 20220026641
    Abstract: An optical connector includes: at least a ferrule and n self-forming optical waveguides, wherein the ferrule includes n optical fiber insertion holes, and optical fibers are each inserted into and included in the optical fiber insertion holes, the number n indicates a natural number not including zero, there are variations in an angle of each optical fiber in a core axial direction and a core gap between adjacent ones of the optical fibers, an end surface of the ferrule is formed with roundness, and end portions of the self-forming optical waveguides are each optically connected to the optical fibers.
    Type: Application
    Filed: October 4, 2021
    Publication date: January 27, 2022
    Inventors: Tsuyoshi NAMEKAWA, Masahiro ABUMI, Satoshi KANO, Keishiro KOMATSU
  • Patent number: 10353155
    Abstract: Provided is a multi-fiber optical connector which can be easily assembled by having a simple structure and provides high workability at the time of connection. Since a plate-shaped guide 2 adapted to move a fiber is provided on an end surface and a gap x is provided on a rear surface of the plate-shaped guide 2, achieved is a structure in which each of fibers 5 is mutually moved in an optical axis direction along a penetration hole h provided at the plate-shaped guide 2 at the time of connecting connectors. Consequently, the respective fibers 5 which can be elastically connected independently from each other can be collectively connected at the time of connecting the connectors, and furthermore, positioning accuracy between the respective fibers 5 can be improved when the connector is used as a multi-fiber optical connector 1.
    Type: Grant
    Filed: April 20, 2016
    Date of Patent: July 16, 2019
    Assignee: ADAMANT NAMIKI PRECISION JEWEL CO., LTD.
    Inventors: Masahiro Abumi, Kazuaki Ikegai, Nobuhiko Oda, Takehiro Hayashi
  • Publication number: 20180113260
    Abstract: Provided is a multi-fiber optical connector which can be easily assembled by having a simple structure an provides high workability at the time of connection. Since a plate-shaped guide 2 adapted to move a fiber is provided on an end surface and a gap x is provided on a rear surface of the plate-shaped guide 2, achieved is a structure in which each of fibers 5 is mutually moved in an optical axis direction along a penetration hole h provided at the plate-shaped guide 2 at the time of connecting connectors. Consequently, the respective fibers 5 which can be elastically connected independently from each other can be collectively connected at the time of connecting the connectors, and furthermore, positioning accuracy between the respective fibers 5 can be improved when the connector is used as a multi-fiber optical connector 1.
    Type: Application
    Filed: April 20, 2016
    Publication date: April 26, 2018
    Inventors: Masahiro ABUMI, Kazuaki IKEGAI, Nobuhiko ODA, Takehiro HAYASHI
  • Patent number: D695222
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: December 10, 2013
    Assignee: Adamant Kogyo Co., Ltd.
    Inventors: Yasuhiro Hyakutake, Masahiro Abumi
  • Patent number: D695223
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: December 10, 2013
    Assignee: Adamant Kogyo Co., Ltd.
    Inventors: Yasuhiro Hyakutake, Masahiro Abumi
  • Patent number: D801279
    Type: Grant
    Filed: September 15, 2016
    Date of Patent: October 31, 2017
    Assignee: ADAMANT CO., LTD.
    Inventors: Takehiro Hayashi, Masahiro Abumi, Nobuhiko Oda
  • Patent number: D801280
    Type: Grant
    Filed: September 15, 2016
    Date of Patent: October 31, 2017
    Assignee: ADAMANT CO., LTD.
    Inventors: Takehiro Hayashi, Masahiro Abumi, Nobuhiko Oda