Patents by Inventor Hideyuki Nasu

Hideyuki Nasu 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).

  • Publication number: 20210373256
    Abstract: An optical part includes: an optical fiber having a core portion and a cladding portion that is formed around the core portion; a light absorber placed around the optical fiber; and an adhesive member that adheres the light absorber and the optical fiber to each other. Further, the cladding portion includes: a main portion extending along a longitudinal direction and having a main portion cladding diameter; and an input end portion positioned closer to a light input side with respect to the main portion, and an input end face cladding diameter at an input end face of the input end portion is less than the main portion cladding diameter.
    Type: Application
    Filed: August 17, 2021
    Publication date: December 2, 2021
    Applicant: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Naoki HAYAMIZU, Hiroshi HASHIMOTO, Hideyuki NASU
  • Patent number: 9817192
    Abstract: An optical module includes a housing including an internal space that has an opening in a substrate mounting surface, an element mounting surface that forms a portion of an inner surface of the internal space, and a waveguide introduction opening that is formed in a side surface intersecting the substrate mounting surface and is opened to the opening of the substrate mounting surface and communicated with the internal space, an optical element that is mounted on the element mounting surface, and an electronic element that is mounted on the element mounting surface and is connected to the optical element. When the substrate mounting surface is mounted on a circuit substrate, an optical waveguide that protrudes from a surface of the circuit substrate is introduced into the internal space through the waveguide introduction opening.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: November 14, 2017
    Assignee: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Yoshinobu Nekado, Yozo Ishikawa, Naoya Nishimura, Toshinori Uemura, Hideyuki Nasu
  • Publication number: 20170192177
    Abstract: An optical module includes a housing including an internal space that has an opening in a substrate mounting surface, an element mounting surface that forms a portion of an inner surface of the internal space, and a waveguide introduction opening that is formed in a side surface intersecting the substrate mounting surface and is opened to the opening of the substrate mounting surface and communicated with the internal space, an optical element that is mounted on the element mounting surface, and an electronic element that is mounted on the element mounting surface and is connected to the optical element. When the substrate mounting surface is mounted on a circuit substrate, an optical waveguide that protrudes from a surface of the circuit substrate is introduced into the internal space through the waveguide introduction opening.
    Type: Application
    Filed: March 7, 2017
    Publication date: July 6, 2017
    Applicant: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Yoshinobu NEKADO, Yozo ISHIKAWA, Naoya NISHIMURA, Toshinori UEMURA, Hideyuki NASU
  • Patent number: 9632265
    Abstract: An optical module includes a housing including an internal space that has an opening in a substrate mounting surface, an element mounting surface that forms a portion of an inner surface of the internal space, and a waveguide introduction opening that is formed in a side surface intersecting the substrate mounting surface and is opened to the opening of the substrate mounting surface and communicated with the internal space, an optical element that is mounted on the element mounting surface, and an electronic element that is mounted on the element mounting surface and is connected to the optical element. When the substrate mounting surface is mounted on a circuit substrate, an optical waveguide that protrudes from a surface of the circuit substrate is introduced into the internal space through the waveguide introduction opening.
    Type: Grant
    Filed: January 4, 2016
    Date of Patent: April 25, 2017
    Assignee: FURUKAWA ELECTRIC CO. LTD.
    Inventors: Yoshinobu Nekado, Yozo Ishikawa, Naoya Nishimura, Toshinori Uemura, Hideyuki Nasu
  • Publication number: 20160116695
    Abstract: An optical module includes a housing including an internal space that has an opening in a substrate mounting surface, an element mounting surface that forms a portion of an inner surface of the internal space, and a waveguide introduction opening that is formed in a side surface intersecting the substrate mounting surface and is opened to the opening of the substrate mounting surface and communicated with the internal space, an optical element that is mounted on the element mounting surface, and an electronic element that is mounted on the element mounting surface and is connected to the optical element. When the substrate mounting surface is mounted on a circuit substrate, an optical waveguide that protrudes from a surface of the circuit substrate is introduced into the internal space through the waveguide introduction opening.
    Type: Application
    Filed: January 4, 2016
    Publication date: April 28, 2016
    Applicant: Furukawa Electric Co., Ltd.
    Inventors: Yoshinobu NEKADO, Yozo ISHIKAWA, Naoya NISHIMURA, Toshinori UEMURA, Hideyuki NASU
  • Patent number: 9170382
    Abstract: A connector incorporating a module, in which an incorporated electrical component may be cooled efficiently and reliably, is provided. A transmission apparatus disposed inside a main body cover of a module-incorporating connector is provided with a ceramic board at which an electrical component and such are mounted. A metal cover touches an upper face of the electrical component. A portion of the metal cover is disposed in an insertion portion of the main body cover. Heat generated by the electrical component is propagated via the metal cover to the insertion portion of a first cover member. When the module-incorporating connector is connected to a socket of a device, the insertion portion is disposed inside an exterior case, in which temperature is controlled by an air conditioner, and cooling is performed reliably and efficiently.
    Type: Grant
    Filed: July 29, 2013
    Date of Patent: October 27, 2015
    Assignee: Molex, LLC
    Inventors: Dean Richardson, Bogdan Andrei, Hideyuki Nasu
  • Patent number: 9122025
    Abstract: A prism/lens array (25) in the present invention is a grass prism having an approximately 45 degrees tapered part. A plurality of lenses (31) are provided side by side on the front surface of the prism/lens array (25). A pair of protrusions (33) are formed on both sides of lenses (31) on the surface on which the lenses (31) are provided. The protrusions (33) are formed in the top-bottom direction of the prism/lens array (25) and roughly V-shaped cross sections. Grooves (35) are provided in an inside surface of a prism-securing part (19), in areas corresponding to the protrusions (33). The grooves (35) are shaped such that the protrusions (33) can fit into the grooves; for example, the grooves could have roughly V-shaped cross sections.
    Type: Grant
    Filed: April 24, 2014
    Date of Patent: September 1, 2015
    Assignee: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Yozo Ishikawa, Hideyuki Nasu
  • Patent number: 9033593
    Abstract: An optical module which includes a housing having a placing portion and an optical input-output portion facing an optical input-output surface of a ferrule; a first fixing portion for fixing the ferrule to the housing in the direction of the Z-axis perpendicular to the placing portion; and a second fixing portion for fixing the ferrule to the housing in the direction of the Y-axis perpendicular to the optical input-output surface, wherein the second fixing portion can change states from the first state to the second state; the first fixing portion fixes the ferrule in the direction of the Z-axis, and does not fix the ferrule in the Z-axis direction when the first fixing portion is at a second position; and the first fixing portion moves from the second position to the first position when the second fixing portion changes its state to a specific state.
    Type: Grant
    Filed: August 7, 2013
    Date of Patent: May 19, 2015
    Assignee: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Yozo Ishikawa, Hideyuki Nasu, Toshinori Uemura
  • Publication number: 20140233897
    Abstract: A prism/lens array (25) in the present invention is a grass prism having an approximately 45 degrees tapered part. A plurality of lenses (31) are provided side by side on the front surface of the prism/lens array (25). A pair of protrusions (33) are formed on both sides of lenses (31) on the surface on which the lenses (31) are provided. The protrusions (33) are formed in the top-bottom direction of the prism/lens array (25) and roughly V-shaped cross sections. Grooves (35) are provided in an inside surface of a prism-securing part (19), in areas corresponding to the protrusions (33). The grooves (35) are shaped such that the protrusions (33) can fit into the grooves; for example, the grooves could have roughly V-shaped cross sections.
    Type: Application
    Filed: April 24, 2014
    Publication date: August 21, 2014
    Applicant: FURUKAWA ELECTRIC CO.,LTD.
    Inventors: Yozo ISHIKAWA, Hideyuki NASU
  • Publication number: 20140056563
    Abstract: A connector incorporating a module, in which an incorporated electrical component may be cooled efficiently and reliably, is provided. A transmission apparatus disposed inside a main body cover of a module-incorporating connector is provided with a ceramic board at which an electrical component and such are mounted. A metal cover touches an upper face of the electrical component. A portion of the metal cover is disposed in an insertion portion of the main body cover. Heat generated by the electrical component is propagated via the metal cover to the insertion portion of a first cover member. When the module-incorporating connector is connected to a socket of a device, the insertion portion is disposed inside an exterior case, in which temperature is controlled by an air conditioner, and cooling is performed reliably and efficiently.
    Type: Application
    Filed: July 29, 2013
    Publication date: February 27, 2014
    Applicant: Molex Incorporated
    Inventors: Dean Richardson, Bogdan Andrei, Hideyuki Nasu
  • Patent number: 8632263
    Abstract: An optical module includes a module housing body including an electrical connection section for electrically connecting the electronic substrate and the optical module to each other and a housing section for housing the optical module, where the module housing body is mounted on the electronic substrate in such a manner that an electrical connection terminal of the electronic substrate and the electrical connection section is connected to each other and a fixing member for maintaining a state in which an electrical connection terminal of the optical module has contact with the electrical connection section in the module housing body. The optical module is housed in the housing section and is fixed in a removable manner by the fixing member, and the optical waveguide and the optical element are configured to be optically coupled to each other in a state in which the optical module is fixed.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: January 21, 2014
    Assignee: Furukawa Electric Co., Ltd.
    Inventors: Yoshinobu Nekado, Hideyuki Nasu
  • Publication number: 20130321662
    Abstract: A gesture recognition system includes an image capturing device, a memory unit and a processing unit. The image capturing device includes a zoom lens and captures an image frame with a focus length. The memory unit previously saves a lookup table of depths versus sharpness associated with at least one the focus length of the zoom lens. The processing unit is configured to calculate a current sharpness value of at least one object image in the image frame and to obtain a current depth of the object image according to the lookup table.
    Type: Application
    Filed: August 7, 2013
    Publication date: December 5, 2013
    Applicant: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Yozo ISHIKAWA, Hideyuki NASU, Toshinori UEMURA
  • Publication number: 20130322834
    Abstract: An optical module which includes a housing having a placing portion and an optical input-output portion facing an optical input-output surface of a ferrule; a first fixing portion for fixing the ferrule to the housing in the direction of the Z-axis perpendicular to the placing portion; and a second fixing portion for fixing the ferrule to the housing in the direction of the Y-axis perpendicular to the optical input-output surface, wherein the second fixing portion can change states from the first state to the second state; the first fixing portion fixes the ferrule in the direction of the Z-axis, and does not fix the ferrule in the Z-axis direction when the first fixing portion is at a second position; and the first fixing portion moves from the second position to the first position when the second fixing portion changes its state to a specific state.
    Type: Application
    Filed: August 7, 2013
    Publication date: December 5, 2013
    Applicant: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Yozo ISHIKAWA, Hideyuki NASU, Toshinori UEMURA
  • Patent number: 8496385
    Abstract: A connector incorporating a module, in which an incorporated electrical component may be cooled efficiently and reliably, is provided. A transmission apparatus disposed inside a main body cover of a module-incorporating connector is provided with a ceramic board at which an electrical component and such are mounted. A metal cover touches an upper face of the electrical component. A portion of the metal cover is disposed in an insertion portion of the main body cover. Heat generated by the electrical component is propagated via the metal cover to the insertion portion of a first cover member. When the module-incorporating connector is connected to a socket of a device, the insertion portion is disposed inside an exterior case, in which temperature is controlled by an air conditioner, and cooling is performed reliably and efficiently.
    Type: Grant
    Filed: March 24, 2011
    Date of Patent: July 30, 2013
    Assignee: Molex Incorporated
    Inventors: Dean Richardson, Bogdan Andrei, Hideyuki Nasu
  • Patent number: 8382384
    Abstract: An optical module includes a module housing body including an electrical connection section for electrically connecting the electronic substrate and the optical module to each other and a housing section for housing the optical module, where the module housing body is mounted on the electronic substrate in such a manner that an electrical connection terminal of the electronic substrate and the electrical connection section is connected to each other and a fixing member for maintaining a state in which an electrical connection terminal of the optical module has contact with the electrical connection section in the module housing body. The optical module is housed in the housing section and is fixed in a removable manner by the fixing member, and the optical waveguide and the optical element are configured to be optically coupled to each other in a state in which the optical module is fixed.
    Type: Grant
    Filed: April 13, 2009
    Date of Patent: February 26, 2013
    Assignee: The Furukawa Electric Co., Ltd.
    Inventors: Yoshinobu Nekado, Hideyuki Nasu
  • Patent number: 8366325
    Abstract: An optical module 10 according to the invention is comprised of: a substrate 11; a laser diode array 14 implemented on said substrate in an array; a driver IC 15 implemented on said substrate and electrically connected to each of surface emitting semiconductor laser elements of the laser diode array 14; an optical connector unit 12 for holding a plurality of optical fiber 16 in an array, wherein the optical connector unit 12 is fixed to the substrate 11 in a location where center of each single end of said plurality of optical fiber and center of each light injecting region are aligned with each other; and a cover 13. The optical connector unit 12 includes two guide-pin holes 12b on two opposite sides of a plurality of fiber holding hole 12a. Two alignment marks 50 are provided on a surface 11a of the substrate 11, which are visually recognizable through each of the guide-pin holes 12b, and function as alignment reference of said optical connector unit 12.
    Type: Grant
    Filed: January 13, 2009
    Date of Patent: February 5, 2013
    Assignee: The Furukawa Electric Co., Ltd.
    Inventors: Yozo Ishikawa, Hideyuki Nasu
  • Publication number: 20110235978
    Abstract: A connector incorporating a module, in which an incorporated electrical component may be cooled efficiently and reliably, is provided. A transmission apparatus disposed inside a main body cover of a module-incorporating connector is provided with a ceramic board at which an electrical component and such are mounted. A metal cover touches an upper face of the electrical component. A portion of the metal cover is disposed in an insertion portion of the main body cover. Heat generated by the electrical component is propagated via the metal cover to the insertion portion of a first cover member. When the module-incorporating connector is connected to a socket of a device, the insertion portion is disposed inside an exterior case, in which temperature is controlled by an air conditioner, and cooling is performed reliably and efficiently.
    Type: Application
    Filed: March 24, 2011
    Publication date: September 29, 2011
    Applicant: Molex Incorporated
    Inventors: Dean Richardson, Bogdan Andrei, Hideyuki Nasu
  • Publication number: 20110049334
    Abstract: An optical module transmits optical signals through a plurality of optical fibers in parallel. The optical module includes a substrate including an electrode pattern, a plurality of optical elements mounted on the electrode pattern of the substrate, and an electronic device mounted on the electrode pattern of the substrate and electrically connected to the optical elements. The optical elements and the electronic device are arranged on the substrate close to each other such that lengths of a plurality of transmission lines each transmitting a signal between each of the optical elements and the electronic device are minimized.
    Type: Application
    Filed: January 15, 2009
    Publication date: March 3, 2011
    Applicant: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Hideyuki Nasu, Yozo Ishikawa
  • Publication number: 20110026888
    Abstract: An optical module includes a module housing body including an electrical connection section for electrically connecting the electronic substrate and the optical module to each other and a housing section for housing the optical module, where the module housing body is mounted on the electronic substrate in such a manner that an electrical connection terminal of the electronic substrate and the electrical connection section is connected to each other and a fixing member for maintaining a state in which an electrical connection terminal of the optical module has contact with the electrical connection section in the module housing body. The optical module is housed in the housing section and is fixed in a removable manner by the fixing member, and the optical waveguide and the optical element are configured to be optically coupled to each other in a state in which the optical module is fixed.
    Type: Application
    Filed: April 13, 2009
    Publication date: February 3, 2011
    Applicant: THE FURUKAWA ELECTRIC CO., LTD.
    Inventors: Yoshinobu Nekado, Hideyuki Nasu
  • Publication number: 20090269006
    Abstract: An optical module 10 according to the invention is comprised of: a substrate 11; a laser diode array 14 implemented on said substrate in an array; a driver IC 15 implemented on said substrate and electrically connected to each of surface emitting semiconductor laser elements of the laser diode array 14; an optical connector unit 12 for holding a plurality of optical fiber 16 in an array, wherein the optical connector unit 12 is fixed to the substrate 11 in a location where center of each single end of said plurality of optical fiber and center of each light injecting region are aligned with each other; and a cover 13. The optical connector unit 12 includes two guide-pin holes 12b on two opposite sides of a plurality of fiber holding hole 12a. Two alignment marks 50 are provided on a surface 11a of the substrate 11, which are visually recognizable through each of the guide-pin holes 12b, and function as alignment reference of said optical connector unit 12.
    Type: Application
    Filed: January 13, 2009
    Publication date: October 29, 2009
    Applicant: THE FURUKAWA ELECTRIC CO., LTD.
    Inventors: Yozo Ishikawa, Hideyuki Nasu