Patents by Inventor Koki KASHIWA

Koki KASHIWA 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: 20240084760
    Abstract: An engine device including a cylinder block having one side portion to which a flywheel that is rotated integrally with a crankshaft is disposed. The engine device is provided with a starter that transmits a rotational force to the flywheel at a time of engine start. A flywheel housing, which accommodates the flywheel and includes a starter attachment pedestal for attaching the starter, is attached to the one side portion of the cylinder block. The starter is disposed inner side of the engine than a portion of the flywheel housing, the portion being located outermost in the engine with respect to a direction that is perpendicular to a direction along a crankshaft center and that is parallel to the cylinder head joining surface of the cylinder block.
    Type: Application
    Filed: November 22, 2023
    Publication date: March 14, 2024
    Applicant: Yanmar Power Technology Co., Ltd.
    Inventors: Koki Kashiwa, Hiroaki Naganawa
  • Patent number: 11859577
    Abstract: An engine device including a cylinder block having one side portion to which a flywheel that is rotated integrally with a crankshaft is disposed. The engine device is provided with a starter that transmits a rotational force to the flywheel at a time of engine start. A flywheel housing, which accommodates the flywheel and includes a starter attachment pedestal for attaching the starter, is attached to the one side portion of the cylinder block. The starter is disposed inner side of the engine than a portion of the flywheel housing, the portion being located outermost in the engine with respect to a direction that is perpendicular to a direction along a crankshaft center and that is parallel to the cylinder head joining surface of the cylinder block.
    Type: Grant
    Filed: August 18, 2021
    Date of Patent: January 2, 2024
    Assignee: Yanmar Power Technology Co., Ltd.
    Inventors: Koki Kashiwa, Hiroaki Naganawa
  • Patent number: 11603904
    Abstract: An engine device having a flywheel housing in which a flywheel that is rotated integrally with a crankshaft is accommodated on one side portion of a cylinder block, in which the cylinder block is integrally formed with housing bracket portions each protruding in a direction away from the crankshaft from each of opposite side portions of the cylinder block extending along a crankshaft axial direction, the housing bracket portions protruding from end portions of the opposite side portions close to the one side portion, and a space surrounded by the one side portion, the housing bracket portions, and the flywheel housing constitutes a gear case for accommodating therein a gear train.
    Type: Grant
    Filed: December 9, 2020
    Date of Patent: March 14, 2023
    Assignee: Yanmar Power Technology Co., Ltd.
    Inventor: Koki Kashiwa
  • Publication number: 20210381466
    Abstract: An engine device including a cylinder block having one side portion to which a flywheel that is rotated integrally with a crankshaft is disposed. The engine device is provided with a starter that transmits a rotational force to the flywheel at a time of engine start. A flywheel housing, which accommodates the flywheel and includes a starter attachment pedestal for attaching the starter, is attached to the one side portion of the cylinder block. The starter is disposed inner side of the engine than a portion of the flywheel housing, the portion being located outermost in the engine with respect to a direction that is perpendicular to a direction along a crankshaft center and that is parallel to the cylinder head joining surface of the cylinder block.
    Type: Application
    Filed: August 18, 2021
    Publication date: December 9, 2021
    Applicant: Yanmar Power Technology Co., Ltd.
    Inventors: Koki Kashiwa, Hiroaki Naganawa
  • Patent number: 11125182
    Abstract: An engine device including a cylinder block having one side portion to which a flywheel that is rotated integrally with a crankshaft is disposed. The engine device is provided with a starter that transmits a rotational force to the flywheel at a time of engine start. A flywheel housing, which accommodates the flywheel and includes a starter attachment pedestal for attaching the starter, is attached to the one side portion of the cylinder block. The starter is disposed inner side of the engine than a portion of the flywheel housing, the portion being located outermost in the engine with respect to a direction that is perpendicular to a direction along a crankshaft center and that is parallel to the cylinder head joining surface of the cylinder block.
    Type: Grant
    Filed: March 4, 2020
    Date of Patent: September 21, 2021
    Assignee: YANMAR POWER TECHNOLOGY CO., LTD.
    Inventors: Koki Kashiwa, Hiroaki Naganawa
  • Publication number: 20210164538
    Abstract: An engine device having a flywheel housing in which a flywheel that is rotated integrally with a crankshaft is accommodated on one side portion of a cylinder block, in which the cylinder block is integrally formed with housing bracket portions each protruding in a direction away from the crankshaft from each of opposite side portions of the cylinder block extending along a crankshaft axial direction, the housing bracket portions protruding from end portions of the opposite side portions close to the one side portion, and a space surrounded by the one side portion, the housing bracket portions, and the flywheel housing constitutes a gear case for accommodating therein a gear train.
    Type: Application
    Filed: December 9, 2020
    Publication date: June 3, 2021
    Applicant: Yanmar Power Technology Co., Ltd.
    Inventor: Koki Kashiwa
  • Patent number: 10890231
    Abstract: An engine device having a flywheel housing (7) in which a flywheel that is rotated integrally with a crankshaft (5) is accommodated on one side portion (303) of a cylinder block (6), in which the cylinder block (6) is integrally formed with housing bracket portions (304) each protruding in a direction away from the crankshaft (5) from each of opposite side portions (301) of the cylinder block (6) extending along a crankshaft axial direction (300), the housing bracket portions (304) protruding from end portions of the opposite side portions (301) close to the one side portion (303) A space surrounded by the one side portion (303), the housing bracket portions (304), and the flywheel housing (7) constitutes a gear case (330) for accommodating therein a gear train.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: January 12, 2021
    Assignee: YANMAR POWER TECHNOLOGY CO., LTD.
    Inventor: Koki Kashiwa
  • Publication number: 20200300334
    Abstract: An engine device having a flywheel housing (7) in which a flywheel that is rotated integrally with a crankshaft (5) is accommodated on one side portion (303) of a cylinder block (6), in which the cylinder block (6) is integrally formed with housing bracket portions (304) each protruding in a direction away from the crankshaft (5) from each of opposite side portions (301) of the cylinder block (6) extending along a crankshaft axial direction (300), the housing bracket portions (304) protruding from end portions of the opposite side portions (301) close to the one side portion (303). A space surrounded by the one side portion (301), the housing bracket portions (304), and the flywheel housing (7) constitutes a gear case (330) for accommodating therein a gear train.
    Type: Application
    Filed: March 13, 2017
    Publication date: September 24, 2020
    Applicant: Yanmar Co., Ltd.
    Inventor: Koki KASHIWA
  • Publication number: 20200200122
    Abstract: An engine device including a cylinder block having one side portion to which a flywheel that is rotated integrally with a crankshaft is disposed. The engine device is provided with a starter that transmits a rotational force to the flywheel at a time of engine start. A flywheel housing, which accommodates the flywheel and includes a starter attachment pedestal for attaching the starter, is attached to the one side portion of the cylinder block. The starter is disposed inner side of the engine than a portion of the flywheel housing, the portion being located outermost in the engine with respect to a direction that is perpendicular to a direction along a crankshaft center and that is parallel to the cylinder head joining surface of the cylinder block.
    Type: Application
    Filed: March 4, 2020
    Publication date: June 25, 2020
    Inventors: Koki KASHIWA, Hiroaki NAGANAWA
  • Patent number: 10598124
    Abstract: An engine device including, a cylinder block having one side portion to which a flywheel that is rotated integrally with a crankshaft is disposed. The engine device is provided with a starter that transmits a rotational force to the flywheel at a time of engine start. A flywheel housing, which accommodates the flywheel and includes a starter attachment pedestal for attaching the starter, is attached to the one side portion of the cylinder block. The starter is disposed inner side of the engine than a portion of the flywheel housing , the portion being located outermost in the engine with respect to a direction that is perpendicular to a direction along a crankshaft center and that is parallel to the cylinder head joining surface of the cylinder block.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: March 24, 2020
    Assignee: YANMAR CO., LTD.
    Inventors: Koki Kashiwa, Hiroaki Naganawa
  • Publication number: 20190085788
    Abstract: An engine device including, a cylinder block (6) having one side portion to which a flywheel that is rotated integrally with a crankshaft (5) is disposed. The engine device is provided with a starter (20) that transmits a rotational force to the flywheel at a time of engine start. A flywheel housing (7), which accommodates the flywheel and includes a starter attachment pedestal for attaching the starter (20), is attached to the one side portion of the cylinder block (6). The starter (20) is disposed inner side of the engine than a portion of the flywheel housing (7), the portion being located outermost in the engine with respect to a direction that is perpendicular to a direction along a crankshaft center (300) and that is parallel to the cylinder head joining surface (341) of the cylinder block (6).
    Type: Application
    Filed: March 29, 2017
    Publication date: March 21, 2019
    Applicant: Yanmar Co., Ltd.
    Inventors: Koki KASHIWA, Hiroaki NAGANAWA