Patents by Inventor Hiroyuki Tsujii

Hiroyuki Tsujii 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).

  • Net structure manufacturing apparatus and net structure manufacturing method
    Patent number: 11926941
    Abstract: A net structure manufacturing apparatus (1) comprising: a nozzle (10) having a discharge hole (11) from which melted thermoplastic resin is extruded so as to be formed as a filament; a water tank (20) disposed below the nozzle (10); a conveying device (30) provided to the water tank (20) and configured to convey a net structure (60) having a resin as the filament (12); and a gas ejection device (40) provided to the water tank (20) and configured to eject gas.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: March 12, 2024
    Assignee: TOYOBO CO., LTD.
    Inventors: Takuo Inoue, Takanori Nakamura, Hiroyuki Tsujii, Shinichi Kobuchi
  • Material and sliding system
    Patent number: 11912952
    Abstract: A material comprising: a support 10; and a brush layer 20 containing a brush-like polymer chain assemblage 21 formed of a plurality of polymer chains and a swelling liquid 22, in which a brush layer 20 is swollen with the swelling liquid 22, the brush layer 20 retaining on the surface a lubricating liquid 30, and the swelling liquid 22 contained in the brush layer 20 and the lubricating liquid 30 being phase-separated to form a liquid-liquid phase separation interface 40 in between and a sliding system using the material.
    Type: Grant
    Filed: December 1, 2020
    Date of Patent: February 27, 2024
    Assignees: KYOTO UNIVERSITY, NATIONAL INSTITUTE OF TECHNOLOGY, NATIONAL UNIVERSITY CORPORATION YOKOHAMA NATIONAL UNIVERSITY
    Inventors: Yoshinobu Tsujii, Keita Sakakibara, Takaya Sato, Hiroyuki Arafune, Ken Nakano, Mayu Miyazaki
  • NET STRUCTURE MANUFACTURING APPARATUS AND NET STRUCTURE MANUFACTURING METHOD
    Publication number: 20210115607
    Abstract: A net structure manufacturing apparatus (1) comprising: a nozzle (10) having a discharge hole (11) from which melted thermoplastic resin is extruded so as to be formed as a filament; a water tank (20) disposed below the nozzle (10); a conveying device (30) provided to the water tank (20) and configured to convey a net structure (60) having a resin as the filament (12); and a gas ejection device (40) provided to the water tank (20) and configured to eject gas.
    Type: Application
    Filed: March 7, 2019
    Publication date: April 22, 2021
    Applicant: TOYOBO CO., LTD.
    Inventors: Takuo Inoue, Takanori Nakamura, Hiroyuki Tsujii, Shinichi Kobuchi
  • Semiconductor laser element and manufacturing method for the same
    Patent number: 7065116
    Abstract: A semiconductor laser element comprising: a clad layer of a first conductivity type; an active layer; a first clad layer of a second conductivity type; a ridge made of a second clad layer of the second conductivity type and a cap layer of the second conductivity type, which are layered on the first clad layer of the second conductivity type, in this order starting from the first clad layer side; a dielectric film formed on ridge sides other than a top portion of the ridge; and a metal electrode layer that covers the ridge, wherein the width of the bottom of the cap layer and the width of the top surface of the second clad layer are approximately equal.
    Type: Grant
    Filed: November 22, 2004
    Date of Patent: June 20, 2006
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masayuki Ohta, Takahiro Hashimoto, Yoshinori Ohitsu, Hiroyuki Tsujii, Satofumi Kinei, Noboru Oshima, Shinji Kaneiwa
  • Semiconductor laser element and manufacturing method for the same
    Publication number: 20050111506
    Abstract: A semiconductor laser element comprising: a clad layer of a first conductivity type; an active layer; a first clad layer of a second conductivity type; a ridge made of a second clad layer of the second conductivity type and a cap layer of the second conductivity type, which are layered on the first clad layer of the second conductivity type, in this order starting from the first clad layer side; a dielectric film formed on ridge sides other than a top portion of the ridge; and a metal electrode layer that covers the ridge, wherein the width of the bottom of the cap layer and the width of the top surface of the second clad layer are approximately equal.
    Type: Application
    Filed: November 22, 2004
    Publication date: May 26, 2005
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Masayuki Ohta, Takahiro Hashimoto, Yoshinori Ohitsu, Hiroyuki Tsujii, Satofumi Kinei, Noboru Oshima, Shinji Kaneiwa