Patents by Inventor Hiroshi Koyama

Hiroshi Koyama 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: 20240116762
    Abstract: Provided is a surface-modified nanodiamond having excellent dispersibility in an organic solvent, and a method capable of introducing various surface-modifying groups and easily producing surface-modified nanocarbon particles with little zirconia contamination. The surface-modified nanodiamond includes nanodiamond particles and a group that surface-modifies the nanodiamond particles and is represented by Formula (1): —X—R1 (1) [where X represents —NH—, —O—, —O—C(?O)—, —C(?O)—O—, —NH—C(?O)—, —C(?O)—NH—, or —S—; the bond extending left from X is bonded to a nanodiamond particle; R1 represents a monovalent organic group that does not have a hydroxy group, carboxy group, amino group, mono-substituted amino group, terminal alkenyl group, and terminal epoxy group; an atom bound to X is a carbon atom; and a molar ratio of carbon atoms to the total amount of heteroatoms selected from the group consisting of nitrogen atoms, oxygen atoms, sulfur atoms, and silicon atoms is 4.5 or greater.
    Type: Application
    Filed: November 7, 2023
    Publication date: April 11, 2024
    Applicant: DAICEL CORPORATION
    Inventors: Takeru KASHIWAGI, Hiroshi KOYAMA, Atsushi KUME
  • Patent number: 11904383
    Abstract: Provided is construction which is able to downsize an orbital forging device comprising a spherical seat with shaft that swings and rotates with a molding die. The end section on the other side in the axial direction of the swinging shaft 13 is supported with respect to the driving mechanism 17 in a state where the movement toward one side in the axial direction (lower side) is prevented, and a member for preventing the swinging shaft 13 from moving toward the one side in the axial direction with respect to the frame 10 is not assembled in a section which is located between the convex spherical seat 14 and the driving mechanism 17 in the axial direction of the swinging shaft 13.
    Type: Grant
    Filed: June 15, 2021
    Date of Patent: February 20, 2024
    Assignee: NSK LTD.
    Inventors: Tetsurou Maruno, Nobuyuki Hagiwara, Tokumasa Kikuchi, Hiroshi Koyama
  • Publication number: 20230160431
    Abstract: A first piece (13) includes a first ring portion (13b) and a second ring portion (13c) which are arranged side by side in an axial direction and an inner diameter and an outer diameter of the first ring portion (13b) are respectively larger than an inner diameter and an outer diameter of the second ring portion (13c). A second piece (16) is obtained by pressing the first piece (13) while the first piece (13) is disposed between a first set and a second set.
    Type: Application
    Filed: July 6, 2021
    Publication date: May 25, 2023
    Applicant: NSK Ltd.
    Inventors: Kouhei MORI, Mizuki WATANABE, Isao SHINTOU, Hiroshi KOYAMA
  • Publication number: 20230147199
    Abstract: An image forming apparatus includes an image forming unit, a casing, a sheet discharge unit, a sheet supporting portion, an operation unit, a supporting unit, and a regulating portion. The supporting unit supports the operation unit such that, when the display surface is tilted with respect to a horizontal direction, an end on a lower side of the operation unit is positioned below a second virtual straight line. The regulating portion is disposed between the operation unit and the sheet supporting portion in the vertical direction. The regulating portion is disposed such that at least a part of the regulating portion overlaps the operation unit and the supporting surface in a width direction. The regulating portion is disposed to intersect with the second virtual straight line. The regulating portion is configured to regulate an obliquely upward movement of a recording material discharged by the sheet discharge unit.
    Type: Application
    Filed: November 3, 2022
    Publication date: May 11, 2023
    Inventor: Hiroshi Koyama
  • Patent number: 11643476
    Abstract: A cellulose ester, wherein, in a structural formula of the following general formula (I), a degree of substitution where X is an acyl group is from 2.91 to 3.0; the acyl group includes benzoyl group (A) optionally having a substituent, and benzoyl group (B) optionally having a substituent different from that of benzoyl group (A); and when the degree of substitution is 3.0, a degree of substitution of benzoyl group (A) is from 1.5 to 2.9, and a degree of substitution of benzoyl group (B) is from 0.1 to 1.5, wherein all or some of X represents an acyl group; when some of X represents an acyl group, the remainder represents a group selected from a hydrogen atom and an alkyl group; and n represents an integer of from 20 to 20,000.
    Type: Grant
    Filed: January 20, 2021
    Date of Patent: May 9, 2023
    Assignee: DAICEL CORPORATION
    Inventors: Tomohiro Hashizume, Hiroyuki Matsumura, Tohru Shibata, Hiroshi Koyama, Mitsuru Ohno, Tomoichi Watabe
  • Patent number: 11560619
    Abstract: A laminate that improves barrier properties of an atomic layer deposition film in spite of use of a substrate made of a polymer material, and provides a gas barrier film and a method of producing the same. The laminate includes: a substrate made a polymer material; an undercoat layer disposed on at least part of a surface of the substrate and made up of an inorganic material containing Ta; and an atomic layer deposition film disposed so as to cover a surface of the undercoat layer.
    Type: Grant
    Filed: August 11, 2020
    Date of Patent: January 24, 2023
    Assignee: TOPPAN PRINTING CO., LTD.
    Inventors: Hiroshi Koyama, Jin Sato, Mitsuru Kano
  • Patent number: 11520257
    Abstract: A first protrusion is provided between an operation lever and a lock lever. The operation lever is for moving a pressure roller. The lock lever is provided for a sheet guide member for guiding a sheet that has passed through a fixing unit downstream in the sheet conveyance direction. The lock lever is for locking the sheet guide member at a position where the sheet guide member is engaged with a housing. The first protrusion protrudes from the sheet guide member toward an exterior cover. The first protrusion is provided with a second protrusion on the lock lever side of the first protrusion.
    Type: Grant
    Filed: November 23, 2021
    Date of Patent: December 6, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventor: Hiroshi Koyama
  • Publication number: 20220289577
    Abstract: Provided is a surface-modified nanodiamond having excellent dispersibility in an organic solvent, or a surface-modified nanodiamond which is an intermediate for obtaining the surface-modified nanodiamond. Also, provided is a method of producing surface-modified nanocarbon particles, in which various surface-modifying groups can be introduced into the nanocarbon particles. The surface-modified nanodiamond according to the present disclosure includes a nanodiamond particle and a group that surface-modifies the nanodiamond particle, the group being represented by Formula (1) or (2).
    Type: Application
    Filed: June 30, 2020
    Publication date: September 15, 2022
    Applicant: DAICEL CORPORATION
    Inventors: Takeru KASHIWAGI, Hiroshi KOYAMA
  • Publication number: 20220187746
    Abstract: A first protrusion is provided between an operation lever and a lock lever. The operation lever is for moving a pressure roller. The lock lever is provided for a sheet guide member for guiding a sheet that has passed through a fixing unit downstream in the sheet conveyance direction. The lock lever is for locking the sheet guide member at a position where the sheet guide member is engaged with a housing. The first protrusion protrudes from the sheet guide member toward an exterior cover. The first protrusion is provided with a second protrusion on the lock lever side of the first protrusion.
    Type: Application
    Filed: November 23, 2021
    Publication date: June 16, 2022
    Inventor: Hiroshi Koyama
  • Publication number: 20220177314
    Abstract: Provided is a surface-modified nanodiamond having excellent dispersibility in an organic solvent, and a method capable of introducing various surface-modifying groups and easily producing surface-modified nanocarbon particles with little zirconia contamination. The surface-modified nanodiamond includes nanodiamond particles and a group that surface-modifies the nanodiamond particles and is represented by Formula (1): —X—R1 (1) [where X represents —NH—, —O—, —O—C(?O)—, —C(?O)—O—, —NH—C(?O)—, —C(?O)—NH—, or —S—; the bond extending left from X is bonded to a nanodiamond particle; R1 represents a monovalent organic group that does not have a hydroxy group, carboxy group, amino group, mono-substituted amino group, terminal alkenyl group, and terminal epoxy group; an atom bound to X is a carbon atom; and a molar ratio of carbon atoms to the total amount of heteroatoms selected from the group consisting of nitrogen atoms, oxygen atoms, sulfur atoms, and silicon atoms is 4.5 or greater.
    Type: Application
    Filed: June 3, 2020
    Publication date: June 9, 2022
    Applicant: DAICEL CORPORATION
    Inventors: Takeru KASHIWAGI, Hiroshi KOYAMA, Atsushi KUME
  • Publication number: 20220101059
    Abstract: A training system comprises a training device, and a training data creation device for the training device. The training device trains a neural network by means of a backpropagation algorithm. The training data creation device acquires any one of a positive evaluation indicating that content of the input data coincides with the label, a negative evaluation indicating that content of the input data does not coincide with the label, and an ignorable evaluation indicating exclusion from a training target label, for each label regarding the input data to create training data.
    Type: Application
    Filed: October 5, 2021
    Publication date: March 31, 2022
    Applicant: MORPHO, INC.
    Inventors: Yasuhiro KURODA, Masaki Hiraga, Kenji Okuma, Michihiro Kobayashi, Hiroshi Koyama
  • Patent number: 11170262
    Abstract: A training system comprises a training device, and a training data creation device. The training device trains a neural network. The training data creation device acquires any one of a positive evaluation indicating that content of the input data coincides with the label, a negative evaluation indicating that content of the input data does not coincide with the label, and an ignorable evaluation indicating exclusion from a training target label, for each label regarding the input data to create training data. In training the neural network for training, the training system adjusts the weight coefficient for the intermediate layer and makes the recognition score of the label with the ignorable evaluation not affect the adjustment of the weight coefficient for the intermediate layer.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: November 9, 2021
    Assignee: MORPHO, INC.
    Inventors: Yasuhiro Kuroda, Masaki Hiraga, Kenji Okuma, Michihiro Kobayashi, Hiroshi Koyama
  • Patent number: 11162538
    Abstract: A method of manufacturing a rotating bearing unit includes to cause one end surface in the axial direction of the forming punch (46), formed by combining a plurality of punch elements (46, 46) divided in the circumferential direction, which are displaceable in the axial direction and which are not displaceable in the circumferential direction, and having a processing teeth (44, 44) at one end surface in the axial direction, to face the other end surface of the caulking section (20) in the axial direction. In this state, rolls (30a) are rotated about the central axis (?) of the hub main body (8) while pressing the other end surface of the forming punch (46) in the axial direction with a pressing surface (43) of the roll (30a) having a central axis (?) that is inclined with respect to the central axis (?) of the hub main body (8).
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: November 2, 2021
    Assignee: NSK LTD.
    Inventors: Nobuyuki Hagiwara, Kazuto Kobayashi, Isao Shintou, Hiroshi Koyama, Toshio Nakamura
  • Patent number: 11151696
    Abstract: An image processing apparatus for obtaining an output image by performing a filter processing of an input image, includes a setting unit configured to set a plurality of local regions in the input image, a deriving unit configured to derive a plurality of coefficients corresponding to each of the plurality of local regions based on statistics indicating variations in pixel values in the plurality of local regions, and a filter processing unit configured to obtain an output pixel value by performing a liner transformation of the input image based on the plurality of the coefficients, wherein the plurality of local regions include a region that is partitioned diagonally to a raster scan direction; wherein the filter processing unit performs the liner transformation of the input image based on a coefficient adaptively selected from the plurality of coefficients.
    Type: Grant
    Filed: December 18, 2019
    Date of Patent: October 19, 2021
    Assignee: MORPHO, INC.
    Inventor: Hiroshi Koyama
  • Publication number: 20210308744
    Abstract: Provided is construction which is able to downsize an orbital forging device comprising a spherical seat with shaft that swings and rotates with a molding die. The end section on the other side in the axial direction of the swinging shaft 13 is supported with respect to the driving mechanism 17 in a state where the movement toward one side in the axial direction (lower side) is prevented, and a member for preventing the swinging shaft 13 from moving toward the one side in the axial direction with respect to the frame 10 is not assembled in a section which is located between the convex spherical seat 14 and the driving mechanism 17 in the axial direction of the swinging shaft 13.
    Type: Application
    Filed: June 15, 2021
    Publication date: October 7, 2021
    Applicant: NSK LTD.
    Inventors: Tetsurou MARUNO, Nobuyuki Hagiwara, Tokumasa Kikuchi, Hiroshi Koyama
  • Patent number: 11103917
    Abstract: Provided is construction which is able to downsize an orbital forging device comprising a spherical seat with shaft that swings and rotates with a molding die. The end section on the other side in the axial direction of the swinging shaft 13 is supported with respect to the driving mechanism 17 in a state where the movement toward one side in the axial direction (lower side) is prevented, and a member for preventing the swinging shaft 13 from moving toward the one side in the axial direction with respect to the frame 10 is not assembled in a section which is located between the convex spherical seat 14 and the driving mechanism 17 in the axial direction of the swinging shaft 13.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: August 31, 2021
    Assignee: NSK LTD.
    Inventors: Tetsurou Maruno, Nobuyuki Hagiwara, Tokumasa Kikuchi, Hiroshi Koyama
  • Patent number: 11065675
    Abstract: Provided is construction which is able to downsize an orbital forging device comprising a spherical seat with shaft that swings and rotates with a molding die. The end section on the other side in the axial direction of the swinging shaft 13 is supported with respect to the driving mechanism 17 in a state where the movement toward one side in the axial direction (lower side) is prevented, and a member for preventing the swinging shaft 13 from moving toward the one side in the axial direction with respect to the frame 10 is not assembled in a section which is located between the convex spherical seat 14 and the driving mechanism 17 in the axial direction of the swinging shaft 13.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: July 20, 2021
    Assignee: NSK LTD.
    Inventors: Tetsurou Maruno, Nobuyuki Hagiwara, Tokumasa Kikuchi, Hiroshi Koyama
  • Publication number: 20210139611
    Abstract: A cellulose ester, wherein, in a structural formula of the following general formula (I), a degree of substitution where X is an acyl group is from 2.91 to 3.0; the acyl group includes benzoyl group (A) optionally having a substituent, and benzoyl group (B) optionally having a substituent different from that of benzoyl group (A); and when the degree of substitution is 3.0, a degree of substitution of benzoyl group (A) is from 1.5 to 2.9, and a degree of substitution of benzoyl group (B) is from 0.1 to 1.5, wherein all or some of X represents an acyl group; when some of X represents an acyl group, the remainder represents a group selected from a hydrogen atom and an alkyl group; and n represents an integer of from 20 to 20,000.
    Type: Application
    Filed: January 20, 2021
    Publication date: May 13, 2021
    Applicant: Daicel Corporation
    Inventors: Tomohiro HASHIZUME, Hiroyuki MATSUMURA, Tohru SHIBATA, Hiroshi KOYAMA, Mitsuru OHNO, Tomoichi WATABE
  • Patent number: 11005065
    Abstract: A laminate includes: a substrate having a first surface and made of a high-molecular-weight material; an undercoat layer located on at least part of the first surface of the substrate and containing a first inorganic substance that has adsorption sites to be coupled to precursors serving as film-forming materials of an atomic layer deposition film; a functional layer located covering an outer surface of the undercoat layer and containing a second inorganic substance to be coupled to the adsorption sites of the undercoat layer, the functional layer being the atomic layer deposition film formed of the precursors; and an overcoat layer located covering an outer surface of the functional layer and containing a third inorganic substance.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: May 11, 2021
    Assignee: TOPPAN PRINTING CO., LTD.
    Inventors: Jin Sato, Mitsuru Kano, Hiroshi Koyama, Kyoko Kuroki
  • Patent number: 10927190
    Abstract: A cellulose ester, wherein, in a structural formula of the following general formula (I), a degree of substitution where X is an acyl group is from 2.91 to 3.0; the acyl group includes benzoyl group (A) optionally having a substituent, and benzoyl group (B) optionally having a substituent different from that of benzoyl group (A); and when the degree of substitution is 3.0, a degree of substitution of benzoyl group (A) is from 1.5 to 2.9, and a degree of substitution of benzoyl group (B) is from 0.1 to 1.5, wherein all or some of X represents an acyl group; when some of X represents an acyl group, the remainder represents a group selected from a hydrogen atom and an alkyl group; and n represents an integer of from 20 to 20,000.
    Type: Grant
    Filed: April 4, 2017
    Date of Patent: February 23, 2021
    Assignee: DAICEL CORPORATION
    Inventors: Tomohiro Hashizume, Hiroyuki Matsumura, Tohru Shibata, Hiroshi Koyama, Mitsuru Ohno, Tomoichi Watabe