Patents by Inventor Hiroyuki Sumi

Hiroyuki Sumi 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: 20230104878
    Abstract: This invention relates to a vehicle headlight assembly comprising: a light source, a housing supporting the light, a bezel equipped over the front side of the housing, and a transparent cover being equipped over the front side of the bezel, wherein the bezel and optionally the housing comprises a thermoplastic resin and a colorant, wherein the colorant is selected from the group consisting of an anthraquinone dye, an amine salt thereof and a mixture thereof.
    Type: Application
    Filed: September 30, 2021
    Publication date: April 6, 2023
    Inventor: HIROYUKI SUMI
  • Patent number: 11142646
    Abstract: This invention relates to a vehicle headlight assembly comprising: a light source, a housing supporting the light, a bezel equipped over the front side of the housing, and a transparent cover being equipped over the front side of the bezel, wherein the bezel and optionally the housing comprises a thermoplastic resin and a colorant, wherein the colorant is selected from the group consisting of an anthraquinone dye, an amine salt thereof and a mixture thereof.
    Type: Grant
    Filed: March 20, 2017
    Date of Patent: October 12, 2021
    Assignee: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventor: Hiroyuki Sumi
  • Patent number: 10802011
    Abstract: In order to evaluate the compatibility of coals used in coke production and to produce cokes with desired strength by blending coals in consideration of the compatibility, the invention provides a technique which evaluates the adhesion strength obtained when two kinds of coals are carbonized based. on properties of the coals. Surface tensions of two kinds of semicokes obtained by heat treating two kinds of coals are measured. Based on the difference between the two measured values of surface tension, the quality of the adhesiveness between the two kinds of coals is evaluated.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: October 13, 2020
    Assignee: JFE STEEL CORPORATION
    Inventors: Kiyoshi Fukada, Hiroyuki Sumi, Hidekazu Fujimoto, Izumi Shimoyama, Takashi Anyashiki, Tetsuya Yamamoto, Yusuke Dohi
  • Publication number: 20190079562
    Abstract: This invention relates to a vehicle headlight assembly comprising: a light source, a housing supporting the light, a bezel equipped over the front side of the housing, and a transparent cover being equipped over the front side of the bezel, wherein the bezel and optionally the housing comprises a thermoplastic resin and a colorant, wherein the colorant is selected from the group consisting of an anthraquinone dye, an amine salt thereof and a mixture thereof.
    Type: Application
    Filed: March 20, 2017
    Publication date: March 14, 2019
    Inventor: Hiroyuki Sumi
  • Patent number: 10144891
    Abstract: Provided is a method for preparing a coal mixture used for the purpose of producing coke with desired strength by taking into account the compatibility between coals for cokemaking. In the case of preparing a coal mixture, used as at least one portion of a coal blend for cokemaking, containing two or more types of coals with different surface tensions, the blending ratio of each of the coals is adjusted using the surface tension of a semicoke mixture obtained from the coal mixture as an indicator.
    Type: Grant
    Filed: March 25, 2013
    Date of Patent: December 4, 2018
    Assignee: JFE Steel Corporation
    Inventors: Izumi Shimoyama, Takashi Anyashiki, Kiyoshi Fukada, Hidekazu Fujimoto, Hiroyuki Sumi
  • Patent number: 9970921
    Abstract: Provided are, by using an index with which the influence on the strength of coke can be evaluated, a method for evaluating a weathering degree of coal and a coking property of weathered coal within the ranges in which the weathering degree and coking property cannot be determined by using conventional methods, and a method for controlling the weathering degree of coal with which it is possible to add weathered coal to a coal blend to be used for producing coke without decreasing the strength of coke by using the index. The weathering degree of coal is evaluated by using the surface tension of semicoke which is prepared by performing a heat treatment on weathered coal as an index. The weathering degree of each brand of coal is controlled so that the interfacial tension ?inter of a semicoke blend which is prepared by blending the plural brands of semicoke in accordance with the proportions is 0.03 mN/m or lower.
    Type: Grant
    Filed: April 8, 2014
    Date of Patent: May 15, 2018
    Assignee: JFE STEEL CORPORATION
    Inventors: Hiroyuki Sumi, Takashi Anyashiki, Kiyoshi Fukada, Yusuke Dohi, Hidekazu Fujimoto, Izumi Shimoyama
  • Publication number: 20180017539
    Abstract: In order to evaluate the compatibility of coals used in coke production and to produce cokes with desired strength by blending coals in consideration of the compatibility, the invention provides a technique which evaluates the adhesion strength obtained when two kinds of coals are carbonized based. on properties of the coals. Surface tensions of two kinds of semicokes obtained by heat treating two kinds of coals are measured. Based on the difference between the two measured values of surface tension, the quality of the adhesiveness between the two kinds of coals is evaluated.
    Type: Application
    Filed: September 26, 2017
    Publication date: January 18, 2018
    Applicant: JFE STEEL CORPORATION
    Inventors: Kiyoshi Fukada, Hiroyuki Sumi, Hidekazu Fujimoto, Izumi Shimoyama, Takashi Anyashiki, Tetsuya Yamamoto, Yusuke Dohi
  • Patent number: 9857350
    Abstract: In order to evaluate the compatibility of coals used in coke production and to produce cokes with desired strength by blending coals in consideration of the compatibility, the invention provides a technique which evaluates the adhesion strength obtained when two kinds of coals are carbonized based on properties of the coals. Surface tensions of two kinds of semicokes obtained by heat treating two kinds of coals are measured. Based on the difference between the two measured values of surface tension, the quality of the adhesiveness between the two kinds of coals is evaluated.
    Type: Grant
    Filed: March 25, 2013
    Date of Patent: January 2, 2018
    Assignee: JFE STEEL CORPORATION
    Inventors: Kiyoshi Fukada, Hiroyuki Sumi, Hidekazu Fujimoto, Izumi Shimoyama, Takashi Anyashiki, Tetsuya Yamamoto, Yusuke Dohi
  • Patent number: 9850441
    Abstract: There is provided a method for blending coals for coke production, in which the strength of coke produced from a coal blend serving as a raw material is estimated using a physical property that has not been taken into consideration in the past as an index, so that the method is capable of suppressing an increase in the raw material cost of the coal blend and increasing the strength of coal. Two or more coal brands are blended together to provide a coal blend for coke production. When the two or more coal brands are blended together, the coal brands and the blending ratio of the coal brands are determined using the surface tension of each of the coal brands subjected to heat treatment, the surface tension serving as a control index.
    Type: Grant
    Filed: March 25, 2013
    Date of Patent: December 26, 2017
    Assignee: JFE STEEL CORPORATION
    Inventors: Kiyoshi Fukada, Hiroyuki Sumi, Hidekazu Fujimoto, Izumi Shimoyama, Takashi Anyashiki, Tetsuya Yamamoto, Yusuke Dohi
  • Patent number: 9845439
    Abstract: Provided is a technique by which the compatibility between coals for cokemaking can be quantitatively determined to estimate the coke strength taking into account the compatibility and to select and blend coals based on the coke strength estimated taking into account the compatibility, thereby allowing the production of a coke with the desired strength. A method for blending coals for cokemaking includes predicting the strength of a coke to be produced from a blend of a plurality of coals based on a difference between the surface tensions of the plurality of coals after heat treatment and determining the types and proportions of the coals to be blended.
    Type: Grant
    Filed: March 25, 2013
    Date of Patent: December 19, 2017
    Assignee: JFE STEEL CORPORATION
    Inventors: Izumi Shimoyama, Takashi Anyashiki, Kiyoshi Fukada, Hidekazu Fujimoto, Tetsuya Yamamoto, Hiroyuki Sumi
  • Publication number: 20170263208
    Abstract: A user device having dynamic control of the privacy and brightness of a display sof a user device is described. The user device includes a processor that obtains information indicating whether a change to the brightness and/or viewing angle of the display is desired. In response to instructions from the processor requesting a change to the brightness and/or privacy of the display, a controller connected to the processor increases or decreases the display brightness and/or viewing angle by controlling a backlight included in the display.
    Type: Application
    Filed: March 10, 2016
    Publication date: September 14, 2017
    Applicant: LENOVO (SINGAPORE) PTE. LTD.
    Inventors: Takumi IMAI, Markus Takashi HEBERLEIN, Joel W. COLLINS, Hiroyuki SUMI
  • Patent number: 9708558
    Abstract: Method for preparing coal for coke making includes controlling particles size of coal or caking additive before arriving at the plant so particles content having diameter of 6 mm or more in the coal or caking additive reaches 30% by mass or less when the coal or caking additive has permeation distance of 15 mm or more. In another method, the relationship between a critical permeation distance and Gieseler maximum fluidity is obtained using permeation distances and Gieseler maximum fluidity values of one or more brands of coal or caking additive, particles size of coal or caking additive is controlled before arriving at the plant so particles content having diameter of 6 mm or more in coal or caking additive reaches 30% by mass or less when permeation distance of coal or caking additive is larger or equal to a critical permeation distance calculated from the Gieseler maximum fluidity.
    Type: Grant
    Filed: February 25, 2013
    Date of Patent: July 18, 2017
    Assignee: JFE STEEL CORPORATION
    Inventors: Yusuke Dohi, Izumi Shimoyama, Kiyoshi Fukada, Hiroyuki Sumi
  • Patent number: 9463980
    Abstract: Coke is manufactured by blending two or more kinds of coal to form a coal blend and by carbonizing the coal blend. Interfacial tension among coal kinds is used as a control index for determining the blending ratio of each coal when forming the coal blend. It is possible to increase the strength of coke without increasing the material cost of a coal blend.
    Type: Grant
    Filed: October 11, 2012
    Date of Patent: October 11, 2016
    Assignee: JFE Steel Corporation
    Inventors: Kiyoshi Fukada, Hiroyuki Sumi, Izumi Shimoyama, Takashi Anyashiki, Hidekazu Fujimoto, Tetsuya Yamamoto, Yusuke Dohi
  • Patent number: 9364921
    Abstract: A method of manufacturing a laser welded steel pipe by forming a steel strip into a cylindrical open pipe and performing laser welding on edges that includes: emitting two laser beams along the edges from an upper surface side of the open pipe, the two laser beams being transmitted through different optical fibers with in-focus spot diameters exceeding 0.3 mm; emitting leading and trailing laser beams each inclined toward a direction in which welding proceeds at an incident angle with respect to a direction perpendicular to an upper surface of the open pipe; setting the incident angle of the leading laser beam to be larger than the incident angle of the trailing laser beam; and setting a gap between a center point of the leading laser beam and a center point of the trailing laser beam on a back surface of the open pipe to 1 mm or larger.
    Type: Grant
    Filed: April 28, 2011
    Date of Patent: June 14, 2016
    Assignee: JFE STEEL CORPORATION
    Inventors: Koji Yano, Hiroyuki Sumi, Kenji Oi
  • Patent number: 9340740
    Abstract: A method for evaluating thermal plasticity of coals and caking additives includes packing a coal or a caking additive into a vessel to prepare a sample 1; arranging a through-hole material 2 having through-holes from top to bottom surfaces, onto the sample 1; heating the sample 1 at a predetermined heating rate while maintaining a constant volume of or while applying a constant load onto the sample 1 and the through-hole material 2; measuring the permeation distance with which the molten sample has permeated into the through-holes; and evaluating thermal plasticity of the sample using the measured value. Alternatively, a method involves heating the sample 1 at a predetermined heating rate while maintaining the sample 1 and the through-hole material 2 in a constant volume; measuring the pressure of the sample that is transmitted via the through-hole material 2; and evaluating thermal plasticity of the sample using the measured value.
    Type: Grant
    Filed: August 31, 2011
    Date of Patent: May 17, 2016
    Assignee: JFE STEEL CORPORATION
    Inventors: Yusuke Dohi, Izumi Shimoyama, Kiyoshi Fukada, Tetsuya Yamamoto, Hiroyuki Sumi
  • Publication number: 20160084816
    Abstract: Provided are, by using an index with which the influence on the strength of coke can be evaluated, a method for evaluating a weathering degree of coal and a coking property of weathered coal within the ranges in which the weathering degree and coking property cannot be determined by using conventional methods, and a method for controlling the weathering degree of coal with which it is possible to add weathered coal to a coal blend to be used for producing coke without decreasing the strength of coke by using the index. The weathering degree of coal is evaluated by using the surface tension of semicoke which is prepared by performing a heat treatment on weathered coal as an index. The weathering degree of each brand of coal is controlled so that the interfacial tension ?inter of a semicoke blend which is prepared by blending the plural brands of semicoke in accordance with the proportions is 0.03 mN/m or lower.
    Type: Application
    Filed: April 8, 2014
    Publication date: March 24, 2016
    Applicant: JFE STEEL CORPORATION
    Inventors: Hiroyuki Sumi, Takashi Anyashiki, Kiyoshi Fukada, Yusuke Dohi, Hidekazu Fujimoto, Izumi Shimoyama
  • Patent number: 9266195
    Abstract: A laser welding method includes emitting two laser beams along a weld line from an upper surface side of a workpiece, the two laser beams being transmitted through different optical fibers and having in-focus spot diameters of 0.3 mm or larger; emitting the laser beams such that a leading laser beam of the two laser beams and a trailing laser beam of the two laser beams are each inclined toward a direction in which welding proceeds at an incident angle with respect to a direction perpendicular to an upper surface of the workpiece, the leading laser beam being ahead of the trailing laser beam on the upper surface of the workpiece in the direction in which welding proceeds, the trailing laser beam being behind the leading laser beam; and setting the incident angle of the leading laser beam to be larger than the incident angle of the trailing laser beam.
    Type: Grant
    Filed: April 28, 2011
    Date of Patent: February 23, 2016
    Assignee: JFE STEEL CORPORATION
    Inventors: Koji Yano, Hiroyuki Sumi
  • Patent number: 9102892
    Abstract: A method for estimating the thermal plasticity of coal and a caking additive by observing the thermal plasticity of coal and a caking additive under the condition that sufficiently simulates an environment surrounding thermal plastic coal and a caking additive in a coke oven and to provide a method for preparing coal of a brand having a specified quality by making clear the required quality of a coal brand which can be ideally used for manufacturing high-strength coke by using the estimation method. A method for preparing coal for coke making, the method including adjusting a permeation distance of one or more kinds of coal to a specified value or less when plural coal brands are blended as materials to be used for coke making is used.
    Type: Grant
    Filed: August 31, 2011
    Date of Patent: August 11, 2015
    Assignee: JFE STEEL CORPORATION
    Inventors: Yusuke Dohi, Izumi Shimoyama, Kiyoshi Fukada, Tetsuya Yamamoto, Hiroyuki Sumi
  • Publication number: 20150075962
    Abstract: Provided is a technique by which the compatibility between coals for cokemaking can be quantitatively determined to estimate the coke strength taking into account the compatibility and to select and blend coals based on the coke strength estimated taking into account the compatibility, thereby allowing the production of a coke with the desired strength. A method for blending coals for cokemaking includes predicting the strength of a coke to be produced from a blend of a plurality of coals based on a difference between the surface tensions of the plurality of coals after heat treatment and determining the types and proportions of the coals to be blended.
    Type: Application
    Filed: March 25, 2013
    Publication date: March 19, 2015
    Inventors: Izumi Shimoyama, Takashi Anyashiki, Kiyoshi Fukada, Hidekazu Fujimoto, Tetsuya Yamamoto, Hiroyuki Sumi
  • Publication number: 20150075961
    Abstract: There is provided a method for blending coals for coke production, in which the strength of coke produced from a coal blend serving as a raw material is estimated using a physical property that has not been taken into consideration in the past as an index, so that the method is capable of suppressing an increase in the raw material cost of the coal blend and increasing the strength of coal. Two or more coal brands are blended together to provide a coal blend for coke production. When the two or more coal brands are blended together, the coal brands and the blending ratio of the coal brands are determined using the surface tension of each of the coal brands subjected to heat treatment, the surface tension serving as a control index.
    Type: Application
    Filed: March 25, 2013
    Publication date: March 19, 2015
    Inventors: Kiyoshi Fukada, Hiroyuki Sumi, Hidekazu Fujimoto, Izumi Shimoyama, Takashi Anyashiki, Tetsuya Yamamoto, Yusuke Dohi