Patents by Inventor Hikaru Kouta

Hikaru Kouta 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: 20190232567
    Abstract: A three-dimensional object formation instruction apparatus receives information pertaining to distribution of a predetermined physical quantity in a three-dimensional space, and on the basis of the received information, determines a shape of a representation body representing the physical quantity, and then, on the basis of the received information, determines a position at which the representation body representing the physical quantity is to be arranged. The three-dimensional object formation instruction apparatus generates a three-dimensional object formation instruction including an instruction to form an object having the determined shape at the determined position, and outputs the generated instruction.
    Type: Application
    Filed: October 4, 2017
    Publication date: August 1, 2019
    Inventors: Jun YAMAZAKI, Hikaru KOUTA, Norio SENDA, Shinji NAGASHIRO, Ryota KOGA, Yuki FURUKAWA
  • Patent number: 8536464
    Abstract: A multilayer substrate is provided with a conductor plane region in which a plurality of conductor planes are disposed; a clearance region disposed adjacent to the conductor plane region so that the plurality of conductor planes are excluded from the clearance region. A plurality of signal vias are disposed through the clearance region so that the plurality of signal vias are isolated from the plurality of conductor planes. A conductor post is connected to one of the plurality of conductor planes and disposed between two of the signal vias in the clearance region.
    Type: Grant
    Filed: May 26, 2008
    Date of Patent: September 17, 2013
    Assignee: NEC Corporation
    Inventors: Taras Kushta, Jun Sakai, Hikaru Kouta
  • Patent number: 8419295
    Abstract: In a photoelectric conversion/connection device (100) including an optical element (320), a mounting board (310) on which the optical element is mounted, and an optical connector (400) which is connected to the mounting board so as to be optically connected to the optical element, the optical connector (400) is arranged on a surface (310a) opposite to a mounting surface (310b) of the mounting board (310) and the optical element (320) is exposed. The photoelectric conversion/connection device (100) includes a motherboard (210) having a main surface (210a) and an electric connector (220) to be mounted on the main surface of the motherboard. The electric connector (220) is detachably connected to the mounting board (310).
    Type: Grant
    Filed: January 21, 2008
    Date of Patent: April 16, 2013
    Assignees: Japan Aviation Electronics Industry, Limited, NEC Corporation
    Inventors: Yuichi Koreeda, Wataru Ohtsu, Mikio Oda, Hisaya Takahashi, Takashi Ohtsuka, Hikaru Kouta, Hideyuki Ono
  • Patent number: 8388238
    Abstract: A method of producing an optical waveguide connector in which the productivity of a ferrule member can be improved, and the connection loss with a counter connector can be suppressed to a low level is obtained. An optical waveguide connector 11 is obtained by performing: an aligning step of restricting the position of the tip end of an optical waveguide 2 passed through an insertion hole 13b of a ferrule member 13, by a positioning portion of a positioning member 16 which is opposedly placed at the tip end of the ferrule member 13, thereby aligning the optical waveguide 2 to the ferrule member 13; and a bonding step of filing a gap between the optical waveguide 2 which is passed through the insertion hole 13b, and the insertion hole 13b, with an adhesive agent to fix the optical waveguide 2 to the ferrule member 13.
    Type: Grant
    Filed: October 5, 2007
    Date of Patent: March 5, 2013
    Assignees: Sumitomo Electric Industries, Ltd., NEC Corporation
    Inventors: Masaki Ohmura, Mitsuaki Tamura, Hikaru Kouta, Kaichiro Nakano, Hideyuki Ono, Chiemi Tanaka
  • Patent number: 8358892
    Abstract: Optical elements (light sources 16 or photodetectors 18) are arranged in a two-dimensional array, and the relative positional relationship between the optical elements and optical waveguides 12 is defined such that optical waveguides 12 extend between the optical elements in the two-dimensional array substantially parallel to substrate 19 for increased parallelism. Micromirrors 15 are disposed in respective optical waveguides 12 to bend light beams through 90 degrees to realize a highly efficient optical coupling between the optical elements and optical waveguides 12. The optical waveguides are stacked in multiple stages, and light beams are lead to the optical waveguides in the multiple stacks through micromirrors 15 across the stacked plane of the optical waveguides, thereby realizing parallel connection between the two-dimensional array of optical elements and a two-dimensional array of optical waveguides.
    Type: Grant
    Filed: February 28, 2006
    Date of Patent: January 22, 2013
    Assignees: NEC Corporation, Tokyo Institute of Technology
    Inventors: Mikio Oda, Hikaru Kouta, Kaichirou Nakano, Hisaya Takahashi, Kohroh Kobayashi
  • Patent number: 8345424
    Abstract: Provided is an optical interconnection device in which a volume required for cooling is reduced. In the optical interconnection device, a plurality of optical modules (12) are arranged on a periphery of an LSI (11) electrically connected to an electric wiring board (10), and liquid cooling mechanisms (13, 14) are respectively placed on the LSI (11) and the optical modules (12). The plurality of optical modules (12) may be arranged only on a surface of the electric wiring board (10) where the LSI (11) is mounted, only on a surface opposite to the surface where the LSI (11) is mounted, or on both the same surface as and the opposite surface to the surface where the LSI (11) is mounted.
    Type: Grant
    Filed: February 16, 2009
    Date of Patent: January 1, 2013
    Assignee: NEC Corporation
    Inventors: Mikio Oda, Tomotaka Ishida, Hisaya Takahashi, Hideyuki Ono, Jun Sakai, Takashi Ohtsuka, Arihide Noda, Hikaru Kouta
  • Patent number: 8297855
    Abstract: An optical connector 1 is for connecting a connection object 10 to an optical module 21. A slider 3 is slidably held by a housing 2 adapted for positioning the connection object and the optical module. The housing has a first positioning portion for receiving the connection object. The slider has a first pressing portion 3a for elastically pressing the connection object in a first direction toward the first positioning portion and a second pressing portion 3e that elastically acts in a second direction perpendicular to the first direction.
    Type: Grant
    Filed: January 25, 2008
    Date of Patent: October 30, 2012
    Assignees: Japan Aviation Electronics Industry, Limited, NEC Corporation
    Inventors: Yuichi Koreeda, Hikaru Kouta, Kaichiro Nakano, Hisaya Takahashi, Takashi Ohtsuka, Hideyuki Ono
  • Patent number: 8047725
    Abstract: In an optical connector adapter for use in connecting a first and a second optical connector plug to each other, a second adapter half is butted against a first adapter half in a predetermined direction. The first and second adapter halves have engaging means for maintaining the first and second adapter halves in a butted state in the predetermined direction. The engaging means is configured to be disposed inside the optical connector adapter and to be prevented from releasing engagement thereof by at least one of the first and second optical connector plugs.
    Type: Grant
    Filed: July 6, 2009
    Date of Patent: November 1, 2011
    Assignees: Japan Aviation Electronics Industry, Limited, NEC Corporation
    Inventors: Naoki Katagiyama, Yuichi Koreeda, Hikaru Kouta, Hisaya Takahashi, Mikio Oda, Hideyuki Ono
  • Patent number: 8004085
    Abstract: A semiconductor device has an element interconnection 2, a top-layer element interconnection 4, a super-connect interconnection 10 and a bump 7. The element interconnection 2 is provided on a semiconductor substrate 1 through a plurality of insulating layers 50. The top-layer element interconnection 4 is formed above the element interconnection 2 by using a substantially equivalent process equipment. The super-connect interconnection 10 is provided on the top-layer element interconnection 4 through a super-connect insulating layer 9 having a thickness five or more times larger than that of the insulating layer 5, and has a thickness three or more times larger than that of each the element interconnection 2 and the top-layer element interconnection 4. The bump 7 is formed on the super-connect interconnection 10. The top-layer element interconnection 4 has a signal pad 4s, a power source pad 4v and a ground pad 4g.
    Type: Grant
    Filed: February 13, 2008
    Date of Patent: August 23, 2011
    Assignee: NEC Corporation
    Inventors: Shintaro Yamamichi, Katsumi Kikuchi, Jun Sakai, Hikaru Kouta
  • Publication number: 20110079422
    Abstract: A multilayer substrate is provided with a conductor plane region in which a plurality of conductor planes are disposed; a clearance region disposed adjacent to the conductor plane region so that the plurality of conductor planes are excluded from the clearance region. A plurality of signal vias are disposed through the clearance region so that the plurality of signal vias are isolated from the plurality of conductor planes. A conductor post is connected to one of the plurality of conductor planes and disposed between two of the signal vias in the clearance region.
    Type: Application
    Filed: May 26, 2008
    Publication date: April 7, 2011
    Applicant: NEC CORPORATION
    Inventors: Taras Kushita, Jun Sakai, Hikaru Kouta
  • Publication number: 20100328894
    Abstract: Provided is an optical interconnection device in which a volume required for cooling is reduced. In the optical interconnection device, a plurality of optical modules (12) are arranged on a periphery of an LSI (11) electrically connected to an electric wiring board (10), and liquid cooling mechanisms (13, 14) are respectively placed on the LSI (11) and the optical modules (12). The plurality of optical modules (12) may be arranged only on a surface of the electric wiring board (10) where the LSI (11) is mounted, only on a surface opposite to the surface where the LSI (11) is mounted, or on both the same surface as and the opposite surface to the surface where the LSI (11) is mounted.
    Type: Application
    Filed: February 16, 2009
    Publication date: December 30, 2010
    Inventors: Mikio Oda, Tomotaka Ishida, Hisaya Takahashi, Hideyuki Ono, Jun Sakai, Takashi Ohtsuka, Arihide Noda, Hikaru Kouta
  • Publication number: 20100117228
    Abstract: A semiconductor device has an element interconnection 2, a top-layer element interconnection 4, a super-connect interconnection 10 and a bump 7. The element interconnection 2 is provided on a semiconductor substrate 1 through a plurality of insulating layers 50. The top-layer element interconnection 4 is formed above the element interconnection 2 by using a substantially equivalent process equipment. The super-connect interconnection 10 is provided on the top-layer element interconnection 4 through a super-connect insulating layer 9 having a thickness five or more times larger than that of the insulating layer 5, and has a thickness three or more times larger than that of each the element interconnection 2 and the top-layer element interconnection 4. The bump 7 is formed on the super-connect interconnection 10. The top-layer element interconnection 4 has a signal pad 4s, a power source pad 4v and a ground pad 4g.
    Type: Application
    Filed: February 13, 2008
    Publication date: May 13, 2010
    Applicant: NEC Corporation
    Inventors: Shintaro Yamamichi, Katsumi Kikuchi, Jun Sakai, Hikaru Kouta
  • Publication number: 20100098383
    Abstract: In a photoelectric conversion/connection device (100) including an optical element (320), a mounting board (310) on which the optical element is mounted, and an optical connector (400) which is connected to the mounting board so as to be optically connected to the optical element, the optical connector (400) is arranged on a surface (310a) opposite to a mounting surface (310b) of the mounting board (310) and the optical element (320) is exposed. The photoelectric conversion/connection device (100) includes a motherboard (210) having a main surface (210a) and an electric connector (220) to be mounted on the main surface of the motherboard. The electric connector (220) is detachably connected to the mounting board (310).
    Type: Application
    Filed: January 21, 2008
    Publication date: April 22, 2010
    Inventors: Yuichi Koreeda, Wataru Ohtsu, Mikio Oda, Hisaya Takahashi, Takashi Ohtsuka, Hikaru Kouta, Hideyuki Ono
  • Publication number: 20100054673
    Abstract: An optical connector 1 is for connecting a connection object 10 to an optical module 21. A slider 3 is slidably held by a housing 2 adapted for positioning the connection object and the optical module. The housing has a first positioning portion for receiving the connection object. The slider has a first pressing portion 3a for elastically pressing the connection object in a first direction toward the first positioning portion and a second pressing portion 3e that elastically acts in a second direction perpendicular to the first direction.
    Type: Application
    Filed: January 25, 2008
    Publication date: March 4, 2010
    Inventors: Yuichi Koreeda, Hikaru Kouta, Kaichiro Nakano, Hisaya Takahashi, Takashi Ohtsuka, Hideyuki Ono
  • Publication number: 20100014815
    Abstract: A method of producing an optical waveguide connector in which the productivity of a ferrule member can be improved, and the connection loss with a counter connector can be suppressed to a low level is obtained. An optical waveguide connector 11 is obtained by performing: an aligning step of restricting the position of the tip end of an optical waveguide 2 passed through an insertion hole 13b of a ferrule member 13, by a positioning portion of a positioning member 16 which is opposedly placed at the tip end of the ferrule member 13, thereby aligning the optical waveguide 2 to the ferrule member 13; and a bonding step of filing a gap between the optical waveguide 2 which is passed through the insertion hole 13b, and the insertion hole 13b, with an adhesive agent to fix the optical waveguide 2 to the ferrule member 13.
    Type: Application
    Filed: October 5, 2007
    Publication date: January 21, 2010
    Inventors: Masaki Ohmura, Mitsuaki Tamura, Hikaru Kouta, Kaichiro Nakano, Hideyuki Ono, Chiemi Tanaka
  • Publication number: 20100002999
    Abstract: In an optical connector adapter for use in connecting a first and a second optical connector plug to each other, a second adapter half is butted against a first adapter half in a predetermined direction. The first and second adapter halves have engaging means for maintaining the first and second adapter halves in a butted state in the predetermined direction. The engaging means is configured to be disposed inside the optical connector adapter and to be prevented from releasing engagement thereof by at least one of the first and second optical connector plugs.
    Type: Application
    Filed: July 6, 2009
    Publication date: January 7, 2010
    Inventors: Naoki Katagiyama, Yuichi Koreeda, Hikaru Kouta, Hisaya Takahashi, Mikio Oda, Hideyuki Ono
  • Publication number: 20090232443
    Abstract: Optical elements (light sources 16 or photodetectors 18) are arranged in a two-dimensional array, and the relative positional relationship between the optical elements and optical waveguides 12 is defined such that optical waveguides 12 extend between the optical elements in the two-dimensional array substantially parallel to substrate 19 for increased parallelism. Micromirrors 15 are disposed in respective optical waveguides 12 to bend light beams through 90 degrees to realize a highly efficient optical coupling between the optical elements and optical waveguides 12. The optical waveguides are stacked in multiple stages, and light beams are lead to the optical waveguides in the multiple stacks through micromirrors 15 across the stacked plane of the optical waveguides, thereby realizing parallel connection between the two-dimensional array of optical elements and a two-dimensional array of optical waveguides.
    Type: Application
    Filed: February 28, 2006
    Publication date: September 17, 2009
    Applicants: NEC CORPORATION, TOKYO INSTITUTE OF TECHNOLOGY
    Inventors: Mikio Oda, Hikaru Kouta, Kaichirou Nakano, Hisaya Takahashi, Kohroh Kobayashi
  • Patent number: 7496125
    Abstract: As a composite laser rod capable of satisfying the positional stability and output stability of a laser beam, a laser rod in which a laser active element is doped is intimately inserted into a hollow portion of a non-doped ceramic pipe that has a crystal structure the same as the laser rod followed by baking so as to remove a gap and strain at an interface between the laser rod and the ceramic pipe after the baking further followed by polishing a surface of the ceramic pipe to form a ceramic skin layer, and thereby a composite laser rod is formed. In the composite laser rod, an influence due to fluctuation in the cooling capacity of cooling water or a heat sink is averaged by a non-doped skin layer, temperature fluctuation of the laser rod is suppressed, and an influence of vibration from the cooling water or a cooling fan can be suppressed.
    Type: Grant
    Filed: November 17, 2006
    Date of Patent: February 24, 2009
    Assignee: Konoshima Chemical Co. Ltd.
    Inventors: Hikaru Kouta, Yoshikazu Suzuki, Shuetsu Kudo, Masaki Tsunekane, Katsuji Mukaihara, Takagimi Yanagitani, Hideki Yagi
  • Publication number: 20090026565
    Abstract: The present invention includes: photoelectric conversion element 103 that converts electrical signals into optical signals and optical signals into electrical signals; and optical communication LSI 102 electrically connected to photoelectric conversion element 103. Also, the present invention includes electrical wiring substrate 101 including a plurality of electrodes 201 and 202 on which photoelectric conversion element 103 and optical communication LSI 102 are mounted by flip-chip attachment and a plurality of wiring layers 101a, 101b and 101c electrically connecting respective electrodes 201 and 202, wiring layers 101a, 101b and 101c being provided at an upper surface, a lower surface and an inner portion of electrical wiring substrate 101, respectively. Also, electrodes 201 and 202 to which photoelectric conversion element 103 is bonded are provided at a side surface of electrical wiring substrate 101.
    Type: Application
    Filed: February 2, 2007
    Publication date: January 29, 2009
    Inventors: Arihide Noda, Mikio Oda, Takashi Ohtsuka, Hisaya Takahashi, Hikaru Kouta, Jun Sakai
  • Patent number: 7333683
    Abstract: An LSI package having an optical interface is mounted on a surface of a photoelectric wiring board. The photoelectric wiring board and the optical interface are optically connected with sufficient precision. A wiring board side guide member including socket pins and guide pins is soldered and fixed onto the photoelectric wiring board including an optical transmission line, a guide pin, and a mirror. An optical interface side guide member having a fitting hole is glued to the optical interface. The optical interface is mounted on an interposer of the LSI package. The guide pin of the photoelectric wiring board is fitted into the fitting hole formed through the interposer. The guide pin of the guide member is fitted into the fitting hole of the guide member. As a result, position alignment between the optical interface and the photoelectric wiring board is conducted with high precision.
    Type: Grant
    Filed: October 7, 2005
    Date of Patent: February 19, 2008
    Assignee: NEC Corproation
    Inventors: Junichi Sasaki, Ichiro Hatakeyama, Kazunori Miyoshi, Hikaru Kouta, Kaichiro Nakano, Mikio Oda, Hisaya Takahashi, Mitsuru Kurihara