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: 20240345057
    Abstract: A film sensor for detecting hydrogen in a metal material by being laminated on a surface of the metal material in a gas or in vacuum is formed of an organic polymer whose optical characteristic changes depending on a hydrogen concentration, and contains, if necessary, a dye whose optical characteristic changes depending on the hydrogen concentration. This film sensor can easily detect a concentration or a distribution of hydrogen present in the metal material, and additionally enables observation of change over time of the concentration or the distribution of hydrogen.
    Type: Application
    Filed: August 2, 2021
    Publication date: October 17, 2024
    Inventors: Hiroshi KAKINUMA, Eiji AKIYAMA, Saya AJITO, Motomichi KOYAMA, Tomohiko HOJO
  • Patent number: 12115923
    Abstract: An earth structure for a filler pipe includes a filler pipe; a tubular cover member in which an upstream end of the filler pipe is inserted and which defines a fueling port; an annular seal part interposed between the filler pipe and the cover member; and an earth member which is mounted an outer surface of the filler pipe and extends along a longitudinal direction of the filler pipe. The cover member is made of a conductive material, and the earth member is in contact with the cover member on a downstream side of the seal part. Since it is not necessary to dispose the earth member so as to pass through the seal part, the sealability between the filler pipe and the cover member improves.
    Type: Grant
    Filed: January 12, 2022
    Date of Patent: October 15, 2024
    Assignee: YACHIYO INDUSTRY CO., LTD.
    Inventors: Takahiko Ono, Takeshi Hirohara, Hiroshi Hanahara, Tadashi Koyama, Takatoshi Nagata
  • Patent number: 12110206
    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: Grant
    Filed: November 3, 2022
    Date of Patent: October 8, 2024
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Hiroshi Koyama
  • Publication number: 20240329325
    Abstract: An object of the present disclosure is to provide an optical switch that does not require power supply.
    Type: Application
    Filed: October 11, 2021
    Publication date: October 3, 2024
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Tatsuya FUJIMOTO, Kazunori KATAYAMA, Ryo KOYAMA, Kazuhide NAKAE, Hiroshi WATANABE, Yoshiteru ABE, Tomohiro KAWANO, Chisato FUKAI
  • Publication number: 20240287974
    Abstract: A linear motor for a compressor having asymmetric load characteristics in both directions of a stroke, improves the service life of a bearing, and reduces a total length of a system. The linear motor includes a movable element having a magnetic pole frame and a plurality of field element poles, and a plurality of magnetic pole teeth around which windings are wound and that are provided so as to sandwich the movable element, and the movable element and the magnetic pole teeth are relatively displaced. The plurality of field element poles include primary magnets arranged between the plurality of magnetic pole teeth and secondary magnets arranged externally relative to spaces between the plurality of magnetic pole teeth in either direction of the relative displacement. A neck part of the magnetic pole frame connected to a bearing is arranged externally in the other direction of the relative displacement direction.
    Type: Application
    Filed: May 18, 2022
    Publication date: August 29, 2024
    Applicant: Hitachi Astemo, Ltd.
    Inventors: Junnosuke NAKATSUGAWA, Masaki KOYAMA, Hiroshi SAKAI, Kan KOBAYASHI, Yoshinori KAWAI
  • Patent number: 12073627
    Abstract: A guidance processing apparatus (100) includes an information acquisition unit (101) that acquires a plurality of different pieces of guidance information on the basis of states of a plurality of people within one or more images, and a control unit (102) that performs control of a plurality of target devices present in different spaces or time division control of a target device so as to set a plurality of different states corresponding to the plurality of pieces of guidance information.
    Type: Grant
    Filed: July 14, 2021
    Date of Patent: August 27, 2024
    Assignee: NEC CORPORATION
    Inventors: Ryoma Oami, Hiroyoshi Miyano, Yusuke Takahashi, Hiroo Ikeda, Yukie Ebiyama, Ryo Kawai, Takuya Ogawa, Kazuya Koyama, Hiroshi Yamada
  • Patent number: 12073628
    Abstract: A guidance processing apparatus (100) includes an information acquisition unit (101) that acquires a plurality of different pieces of guidance information on the basis of states of a plurality of people within one or more images, and a control unit (102) that performs control of a plurality of target devices present in different spaces or time division control of a target device so as to set a plurality of different states corresponding to the plurality of pieces of guidance information.
    Type: Grant
    Filed: July 13, 2022
    Date of Patent: August 27, 2024
    Assignee: NEC CORPORATION
    Inventors: Ryoma Oami, Hiroyoshi Miyano, Yusuke Takahashi, Hiroo Ikeda, Yukie Ebiyama, Ryo Kawai, Takuya Ogawa, Kazuya Koyama, Hiroshi Yamada
  • Publication number: 20240265800
    Abstract: A past disaster information storage section (28) that stores disaster information related to a disaster that has occurred in the past and a disaster information acquisition section (32) that acquires current disaster information related to a disaster that has occurred this time are included. A disaster prediction section (35) that predicts future disaster information caused by a disaster that has occurred this time on the basis of current disaster information acquired by the disaster information acquisition section (32) and past disaster information stored in the past disaster information storage section (28), and a display control section (37) that displays an image in which the current disaster information and the future disaster information are superimposed are further included.
    Type: Application
    Filed: June 4, 2021
    Publication date: August 8, 2024
    Inventors: Tsuneko Kura, Naoko KOSAKA, Akira KOYAMA, Hiroshi MATSUBARA, Jun KATO
  • Patent number: 12058835
    Abstract: An information processing apparatus comprises a first heat generation circuit, a second heat generation circuit, a blocking assembly, and a processor. The blocking assembly performs a first operation of blocking air flowing from the first heat generation circuit toward the second heat generation circuit or a second operation of passing the air, and the processor is configure to instruct the blocking assembly to perform the first operation in a case where a temperature of the air is higher than a predetermined value, and instruct the blocking assembly to perform the second operation in a case where the temperature of the air is lower than the predetermined value.
    Type: Grant
    Filed: April 27, 2022
    Date of Patent: August 6, 2024
    Assignee: FUJITSU LIMITED
    Inventors: Kiichi Koyama, Tatsuya Sudo, Kazuo Tanaka, Hirotaka Shikada, Hiroshi Nagaoka, Hirofumi Konno, Takatoshi Katou, Nobuyoshi Aida, Masafumi Asano, Kazuo Kubo
  • 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