Patents by Inventor Kazuhiro Domoto

Kazuhiro Domoto 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: 10888217
    Abstract: An imaging module includes: an image-sensing device that includes a terminal group having a plurality of image-sensing terminals; a flexible substrate that includes: a first surface, a second surface on the opposite side of the first surface, and conductors disposed on the first surface and the second surface; a single-core wire unit that: is disposed between the image-sensing device and the flexible substrate, electrically connects the terminal group to the conductors, and includes a plurality of flexible single-core wires; and a coaxial cable that is connected to the conductor.
    Type: Grant
    Filed: January 11, 2019
    Date of Patent: January 12, 2021
    Assignee: Fujikura Ltd.
    Inventor: Kazuhiro Domoto
  • Patent number: 10677457
    Abstract: A combustion burner includes a plurality of splitters (5), (6), (7) configured to divide a fuel gas flow by a widened portion where a width of the widened portion increases as the widened portion extends in the direction of the fuel gas flow. The splitters include: slitted splitters (5), (6) configured to slits (SL) at a downstream end in the fuel gas flow; and non-slitted splitters (7) configured to adjacently to the slitted splitters (5), (6), each of the non-slitted splitters (7) configured to the widened portion at a downstream end in the fuel gas flow, and configured to a fixed width in a direction of the longitudinal axis.
    Type: Grant
    Filed: August 1, 2016
    Date of Patent: June 9, 2020
    Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventors: Yukihiro Tominaga, Keigo Matsumoto, Kazuhiro Domoto, Ryuichiro Tanaka, Naofumi Abe, Jun Kasai
  • Publication number: 20200104542
    Abstract: A simulation results evaluation device applies plural numbers of virtual input parameters (VIPs) of a simulation test of the power generation facility to model data showing virtual behaviors of the power generation facility. The device calculates each of virtual process values (VPVs) with respect to each of the VIPs and a score obtained by multiplying the VPV by a coefficient of a positive value when the VPV is included in a predetermined target range, the coefficient being set for each of the VPVs, the coefficient being assigned such that as a deviation from a predetermined target becomes greater, the value of the coefficient becomes smaller, or a coefficient of a negative value when the VPV is included within a permissible range provided adjacently to the predetermined target range. The device extracts a simulation test condition that satisfies a predetermined evaluation condition based on the calculated score.
    Type: Application
    Filed: February 5, 2018
    Publication date: April 2, 2020
    Applicant: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventors: Kazutaka Obara, Yoshinori Yamasaki, Kazuhiro Domoto, Arun Kumar Chaurasia, Hisashi Sanda, Hirotomo Hirahara, Atsushi Miyata, Keigo Matsumoto, Hiroyoshi Kubo, Toshihiro Baba
  • Patent number: 10605455
    Abstract: In this combustion burner and boiler, interference of ignition in a flame stabilizer is suppressed and flame stabilizing performance is improved by providing: a fuel nozzle which ejects a fuel gas that is a mixture of pulverized coal and air; a combustion air nozzle which ejects a fuel gas combustion air from outside of the fuel nozzle; a secondary air nozzle which ejects secondary air from the outside of the combustion air nozzle; and a flame stabilizer which comprises a first flame stabilizer main body which is arranged at the leading end of the fuel nozzle and separated by a prescribed space from the inner wall surface of the fuel nozzle and which forms a ring shape having as the center an axial line along the ejection direction of the fuel gas.
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: March 31, 2020
    Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventors: Keigo Matsumoto, Atsushi Yuasa, Yukihiro Tominaga, Akimasa Takayama, Kazuhiro Domoto, Keita Tsukahara
  • Patent number: 10591154
    Abstract: A combustion burner including: a fuel nozzle (61) which ejects a fuel gas that is a mixture of fuel and air; a combustion air nozzle (62) which ejects air from an outer side of the fuel nozzle (61); first members (71) which are arranged inside the fuel nozzle (61) and which each comprise a first inclined surface (82a) inclined with respect to the flow of the fuel gas, and a first inclination end edge where the inclination of the first inclined surface (82a) ends; and second members (72) which are arranged downstream of the first inclination end edges in the direction of fuel gas flow, and which each comprise a second inclined surface (84a) inclined towards the first members (71) with respect to the fuel gas flow and a second inclination end edge where the inclination of the second inclined surface (84a) ends.
    Type: Grant
    Filed: February 22, 2016
    Date of Patent: March 17, 2020
    Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventors: Keigo Matsumoto, Kazuhiro Domoto, Yukihiro Tominaga, Ryuichiro Tanaka, Naofumi Abe
  • Patent number: 10458645
    Abstract: To provide: a fuel nozzle (51) that can inject fuel gas in which fuel and air are mixed; a flame stabilizer (54) provided on an axial center side near a tip end of the fuel nozzle (51); and a casing member (55) that partitions an inner flow channel in which the flame stabilizer (54) is provided and an outer flow channel on an outer side of the inner flow channel, inside the fuel nozzle (51), where the flow channel cross-sectional area of the inner flow channel partitioned by the casing member (55) expands in the flow direction of the fuel gas.
    Type: Grant
    Filed: February 22, 2016
    Date of Patent: October 29, 2019
    Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventors: Keigo Matsumoto, Yukihiro Tominaga, Akimasa Takayama, Kazuhiro Domoto, Ryuichiro Tanaka, Keita Tsukahara, Naofumi Abe
  • Publication number: 20190231180
    Abstract: An imaging module includes: an image-sensing device that includes a terminal group having a plurality of image-sensing terminals; a flexible substrate that includes: a first surface, a second surface on the opposite side of the first surface, and conductors disposed on the first surface and the second surface; a single-core wire unit that: is disposed between the image-sensing device and the flexible substrate, electrically connects the terminal group to the conductors, and includes a plurality of flexible single-core wires; and a coaxial cable that is connected to the conductor.
    Type: Application
    Filed: January 11, 2019
    Publication date: August 1, 2019
    Applicant: FUJIKURA LTD.
    Inventor: Kazuhiro Domoto
  • Patent number: 10281142
    Abstract: A solid-fuel-fired burner that suppresses a high-temperature oxygen remaining region formed at the outer circumference of a flame and that can decrease the amount of NOx eventually produced is provided. A solid-fuel-fired burner that is used in a burner section of a solid-fuel-fired boiler for performing low-NOx combustion separately in the burner section and in an additional-air injection section and that injects powdered solid-fuel and air into a furnace includes a fuel burner having internal flame stabilization and a secondary-air injection port that does not perform flame stabilization, in which the air ratio in the fuel burner is set to 0.85 or more.
    Type: Grant
    Filed: June 7, 2010
    Date of Patent: May 7, 2019
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Keigo Matsumoto, Koutaro Fujimura, Kazuhiro Domoto, Toshimitsu Ichinose, Naofumi Abe, Jun Kasai
  • Patent number: 10132494
    Abstract: A heat transfer tube for a boiler, an interior of the heat transfer tube having a supercritical pressure and being configured to have a heating medium flow therethrough, includes: a groove portion defined on an inner circumferential surface and having a spiral shape extending continuously toward a tube axis direction; and a rib portion extending continuously and protruding inward in a radial direction by the groove portion of the spiral shape. In a cross section taken along the tube axis direction, a width of the groove portion in the tube axis direction is defined as Wg, a height of the rib portion in the radial direction is defined as Hr and a tube outer diameter is defined as D, and the width Wg of the groove portion, the height Hr of the rib portion, and the tube outer diameter D satisfy Wg/(Hr┬ĚD)>0.40.
    Type: Grant
    Filed: December 25, 2014
    Date of Patent: November 20, 2018
    Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventors: Hiroyuki Nakaharai, Yuichi Kanemaki, Kazuhiro Domoto, Yoshinori Yamasaki
  • Publication number: 20180195715
    Abstract: A combustion burner includes a plurality of splitters (5), (6), (7) configured to divide a fuel gas flow by a widened portion where a width of the widened portion increases as the widened portion extends in the direction of the fuel gas flow. The splitters include: slitted splitters (5), (6) configured to slits (SL) at a downstream end in the fuel gas flow; and non-slitted splitters (7) configured to adjacently to the slitted splitters (5), (6), each of the non-slitted splitters (7) configured to the widened portion at a downstream end in the fuel gas flow, and configured to a fixed width in a direction of the longitudinal axis.
    Type: Application
    Filed: August 1, 2016
    Publication date: July 12, 2018
    Applicant: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventors: Yukihiro Tominaga, Keigo Matsumoto, Kazuhiro Domoto, Ryuichiro Tanaka, Naofumi Abe, Jun Kasai
  • Publication number: 20180045403
    Abstract: To provide: a fuel nozzle (51) that can inject fuel gas in which fuel and air are mixed; a flame stabilizer (54) provided on an axial center side near a tip end of the fuel nozzle (51); and a casing member (55) that partitions an inner flow channel in which the flame stabilizer (54) is provided and an outer flow channel on an outer side of the inner flow channel, inside the fuel nozzle (51), where the flow channel cross-sectional area of the inner flow channel partitioned by the casing member (55) expands in the flow direction of the fuel gas.
    Type: Application
    Filed: February 22, 2016
    Publication date: February 15, 2018
    Applicant: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventors: Keigo Matsumoto, Yukihiro Tominaga, Akimasa Takayama, Kazuhiro Domoto, Ryuichiro Tanaka, Keita Tsukahara, Naofumi Abe
  • Publication number: 20180045404
    Abstract: Provided is a combustion burner including: a fuel nozzle (61) which ejects a fuel gas that is a mixture of fuel and air; a combustion air nozzle (62) which ejects air from an outer side of the fuel nozzle (61); first members (71) which are arranged inside the fuel nozzle (61) and which each comprise a first inclined surface (82a) inclined with respect to the flow of the fuel gas, and a first inclination end edge where the inclination of the first inclined surface (82a) ends; and second members (72) which are arranged downstream of the first inclination end edges in the direction of fuel gas flow, and which each comprise a second inclined surface (84a) inclined towards the first members (71) with respect to the fuel gas flow and a second inclination end edge where the inclination of the second inclined surface (84a) ends.
    Type: Application
    Filed: February 22, 2016
    Publication date: February 15, 2018
    Applicant: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventors: Keigo Matsumoto, Kazuhiro Domoto, Yukihiro Tominaga, Ryuichiro Tanaka, Naofumi Abe
  • Publication number: 20180031232
    Abstract: In this combustion burner and boiler, interference of ignition in a flame stabilizer is suppressed and flame stabilizing performance is improved by providing: a fuel nozzle which ejects a fuel gas that is a mixture of pulverized coal and air; a combustion air nozzle which ejects a fuel gas combustion air from outside of the fuel nozzle; a secondary air nozzle which ejects secondary air from the outside of the combustion air nozzle; and a flame stabilizer which comprises a first flame stabilizer main body which is arranged at the leading end of the fuel nozzle and separated by a prescribed space from the inner wall surface of the fuel nozzle and which forms a ring shape having as the center an axial line along the ejection direction of the fuel gas.
    Type: Application
    Filed: March 17, 2016
    Publication date: February 1, 2018
    Applicant: Mitsubishi Hitachi Power Systems, Ltd.
    Inventors: Keigo MATSUMOTO, Atsushi YUASA, Yukihiro TOMINAGA, Akimasa TAKAYAMA, Kazuhiro DOMOTO, Keita TSUKAHARA
  • Patent number: 9869469
    Abstract: A combustion burner 1 includes a fuel nozzle 2 that injects fuel gas prepared by mixing solid fuel and primary air, secondary air nozzles 3, 4 that inject secondary air from the outer periphery of the fuel nozzle 2, and a flame holder 5 that is arranged in an opening of the fuel nozzle 2. In the combustion burner 1, the flame holder 5 has a splitting shape that widens in the flow direction of the fuel gas. When seen in cross section along a direction in which the flame holder 5 widens, the cross section passing through the central axis of the fuel nozzle 2, a maximum distance h from the central axis of the fuel nozzle 2 to the widened end of the flame holder 5 and an inside diameter r of the opening 21 of the fuel nozzle 2 satisfy h/(r/2)<0.6.
    Type: Grant
    Filed: July 28, 2015
    Date of Patent: January 16, 2018
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Keigo Matsumoto, Koutaro Fujimura, Kazuhiro Domoto, Toshimitsu Ichinose, Naofumi Abe, Jun Kasai
  • Patent number: 9702545
    Abstract: An oil-fired burner (30A) for warming, disposed adjacent to the outer periphery of a pulverized coal burner which inputs pulverized coal and air into a furnace, includes: an oil gun (32) for inputting an oil fuel disposed at the center of an outlet opening of a nozzle main body (31) substantially rectangular in cross-section; and a secondary air input port (40) disposed so as to surround the outer periphery of the oil gun (32), wherein the secondary air input port (40) is constituted of: a central arc section (41) substantially similar in shape to a circular diffuser (34) mounted on the leading end side of the oil gun (32); and rectangular sections (42L, 42R) provided continuously from both sides of the central arc section (41) and narrowed in face-to-face dimension in the direction of the adjacent pulverized coal burners so as to increase the distance from them.
    Type: Grant
    Filed: October 31, 2012
    Date of Patent: July 11, 2017
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Keigo Matsumoto, Kazuhiro Domoto, Naofumi Abe, Jun Kasai
  • Patent number: 9671108
    Abstract: Provided is a combustion burner including: a fuel nozzle (51) that is able to blow a fuel gas obtained by mixing pulverized coal with primary air; a secondary air nozzle (52) that is able to blow secondary air from the outside of the fuel nozzle (51); a flame stabilizer (54) that is provided at a front end portion of the fuel nozzle (51) so as to be near the axis center; and a rectification member (55) that is provided between the inner wall surface of the fuel nozzle (51) and the flame stabilizer (54), wherein an appropriate flow of a fuel gas obtained by mixing solid fuel with air may be realized.
    Type: Grant
    Filed: March 7, 2012
    Date of Patent: June 6, 2017
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Keigo Matsumoto, Kazuhiro Domoto, Naofumi Abe, Jun Kasai
  • Publication number: 20170045221
    Abstract: Provided is a combustion burner including: a fuel nozzle (51) that is able to blow a fuel gas obtained by mixing pulverized coal with primary air; a secondary air nozzle (52) that is able to blow secondary air from the outside of the fuel nozzle (51); a flame stabilizer (54) that is provided at a front end portion of the fuel nozzle (51) so as to be near the axis center; and a rectification member (55) that is provided between the inner wall surface of the fuel nozzle (51) and the flame stabilizer (54), wherein an appropriate flow of a fuel gas obtained by mixing solid fuel with air may be realized.
    Type: Application
    Filed: August 19, 2016
    Publication date: February 16, 2017
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Keigo Matsumoto, Kazuhiro Domoto, Naofumi Abe, Jun Kasai
  • Publication number: 20160356489
    Abstract: Provided is a combustion burner including: a fuel nozzle (51) that is able to blow a fuel gas obtained by mixing pulverized coal with primary air; a secondary air nozzle (52) that is able to blow secondary air from the outside of the fuel nozzle (51); a flame stabilizer (54) that is provided at a front end portion of the fuel nozzle (51) so as to be near the axis center; and a rectification member (55) that is provided between the inner wall surface of the fuel nozzle (51) and the flame stabilizer (54), wherein an appropriate flow of a fuel gas obtained by mixing solid fuel with air may be realized.
    Type: Application
    Filed: August 19, 2016
    Publication date: December 8, 2016
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Keigo Matsumoto, Kazuhiro Domoto, Naofumi Abe, Jun Kasai
  • Publication number: 20160356494
    Abstract: Provided is a combustion burner including: a fuel nozzle (51) that is able to blow a fuel gas obtained by mixing pulverized coal with primary air; a secondary air nozzle (52) that is able to blow secondary air from the outside of the fuel nozzle (51); a flame stabilizer (54) that is provided at a front end portion of the fuel nozzle (51) so as to be near the axis center; and a rectification member (55) that is provided between the inner wall surface of the fuel nozzle (51) and the flame stabilizer (54), wherein an appropriate flow of a fuel gas obtained by mixing solid fuel with air may be realized.
    Type: Application
    Filed: August 19, 2016
    Publication date: December 8, 2016
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Keigo Matsumoto, Kazuhiro Domoto, Naofumi Abe, Jun Kasai
  • Patent number: D875930
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: February 18, 2020
    Assignee: FUJIKURA LTD.
    Inventors: Takao Sato, Kazuhiro Domoto, Hideo Shiratani, Takahiro Shimono, Hideaki Usuda, Takeshi Ishizuka, Wataru Oishi