Patents by Inventor Naoya Mihara

Naoya Mihara 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: 11929301
    Abstract: A package has a cavity to be sealed by a lid. The package includes a heat sink having a coefficient of thermal expansion of 9 ppm/° C. or more and 15 ppm/° C. or less from 25° C. to 100° C. and a frame disposed on the heat sink, made of ceramics, and surrounding the cavity in plan view. An outer edge of the frame includes a first linear portion extending along a first direction, a second linear portion extending along a second direction orthogonal to the first direction, and a chamfer connecting the first linear portion and the second linear portion in plan view.
    Type: Grant
    Filed: March 22, 2022
    Date of Patent: March 12, 2024
    Assignees: NGK ELECTRONICS DEVICES, INC., NGK INSULATORS, LTD.
    Inventors: Naoya Shirai, Yoshikazu Mihara, Noriyasu Yamamoto
  • Patent number: 11179013
    Abstract: The fluid damper device (10) has the rotor (30) which is inserted to the bottomed cylindrical case (20) and the cover (60) which is fixed to the opening portion (29) of the case (20). The welding protrusions (80) which are to be welded to the cover (60) are formed on the inside circumferential surface of the case (20) and spaced out in the circumferential direction. On the other side (L2) in the axial (L) direction of the welding range (X), within which the welding protrusions (80) and the cover are welded together, the first outflow prevention portion (91L, 91R) is formed. On the other side (L2) of the first outflow prevention portion (91L, 91R) in the axial (L) direction, the arc-shaped step surface (76) which functions as the outflow regulation portion (95) is provided to regulate the resin protruded and prevented it from reaching the position of the R-ring (49).
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: November 23, 2021
    Assignee: NIDEC SANKYO CORPORATION
    Inventor: Naoya Mihara
  • Patent number: 11083349
    Abstract: The fluid damper device (10) includes a rotor (30) inserted into a case (20) in a bottomed tube shape and a cover (60) fixed to an opening part (29) of the case (20). The inner peripheral face of the case (20) is formed with the welding protruded part (80) welded to the cover (60) in a part in a circumferential direction. As the flow-out prevention part (90), a second flow-out prevention part (92) is formed on the inner peripheral side of the welding protruded part (80) on the other side (L2) in the axial line (L) direction with respect to the welding range (X). A circular arc-shaped step face (76) functioning as a flow-out restriction part (95) is provided on the other side (L2) in the axial line (L) direction of the second flow-out prevention part (92) and the projected resin is restricted from reaching to the O-ring (49).
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: August 10, 2021
    Assignee: NIDEC SANKYO CORPORATION
    Inventor: Naoya Mihara
  • Publication number: 20210196087
    Abstract: The fluid damper device (10) includes a rotor (30) inserted into a case (20) in a bottomed tube shape and a cover (60) fixed to an opening part (29) of the case (20). The inner peripheral face of the case (20) is formed with the welding protruded part (80) welded to the cover (60) in a part in a circumferential direction. As the flow-out prevention part (90), a second flow-out prevention part (92) is formed on the inner peripheral side of the welding protruded part (80) on the other side (L2) in the axial line (L) direction with respect to the welding range (X). A circular arc-shaped step face (76) functioning as a flow-out restriction part (95) is provided on the other side (L2) in the axial line (L) direction of the second flow-out prevention part (92) and the projected resin is restricted from reaching to the O-ring (49).
    Type: Application
    Filed: May 12, 2017
    Publication date: July 1, 2021
    Applicant: NIDEC SANKYO CORPORATION
    Inventor: Naoya MIHARA
  • Publication number: 20210196088
    Abstract: The fluid damper device (10) has the rotor (30) which is inserted to the bottomed cylindrical case (20) and the cover (60) which is fixed to the opening portion (29) of the case (20). The welding protrusions (80) which are to be welded to the cover (60) are formed on the inside circumferential surface of the case (20) and spaced out in the circumferential direction. On the other side (L2) in the axial (L) direction of the welding range (X), within which the welding protrusions (80) and the cover are welded together, the first outflow prevention portion (91L, 91R) is formed. On the other side (L2) of the first outflow prevention portion (91L, 91R) in the axial (L) direction, the arc-shaped step surface (76) which functions as the outflow regulation portion (95) is provided to regulate the resin protruded and prevented it from reaching the position of the R-ring (49).
    Type: Application
    Filed: May 12, 2017
    Publication date: July 1, 2021
    Applicant: NIDEC SANKYO CORPORATION
    Inventor: Naoya MIHARA
  • Patent number: 10626947
    Abstract: The fluid damper device includes a rotor inserted into a case, and a cover fixed to an opening portion of the case. A thin portion is formed at an end portion of the case on one side in an axis direction, and a contact portion which is in contact with a small-diameter portion of the cover in the axis direction is formed at four positions of an inner circumferential surface of the thin portion at equal angular intervals. A partitioning convex portion which partitions a damper chamber in a circumferential direction is formed on an inner circumferential surface of the case, and the contact portions are formed at positions corresponding to the partitioning convex portion in the circumferential direction. A concave portion recessed radially outward is formed at a position different from the contact portion in the circumferential direction, and a welding convex portion is formed in the concave portion.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: April 21, 2020
    Assignee: NIDEC SANKYO CORPORATION
    Inventor: Naoya Mihara
  • Patent number: 10221606
    Abstract: A fluid damper device may include a tube-shaped case with a bottom wall, a tube part and a partitioning protruded part protruded from the tube part, a turning shaft provided with a body part which faces a first end face of the partitioning protruded part and a flange part enlarged to an outer side in the radial direction from the body part and faces a second end face of the partitioning protruded part, a valve body supported on an outer side of the body part, and fluid filled on an inner side of the case. A face of the flange part is provided with a first region structured to contact the partitioning protruded part and a second region where a distance between the second end face and the flange part is set to be wider than the first region along one direction in a circumferential direction.
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: March 5, 2019
    Assignee: NIDEC SANKYO CORPORATION
    Inventor: Naoya Mihara
  • Patent number: 10221910
    Abstract: A fluid damper device may include a tube-shaped case including a bottom wall, a tube part extended from the bottom wall, and a partitioning protruded part protruded to an inner side from an inner peripheral face of the tube part, and a turning shaft including a body part facing a first end face of the partitioning protruded part, and a flange part which is enlarged from the body part and faces a second end face of the partitioning protruded part, a valve body supported by the body part, and fluid filled within the case. The first end face of the partitioning protruded part is provided with a first rib protruded toward the body part and extended in the axial line direction and a second rib protruded toward the body part and extended in the axial line direction at a position separated in a circumferential direction from the first rib.
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: March 5, 2019
    Assignee: NIDEC SANKYO CORPORATION
    Inventors: Naoya Mihara, Hiroyuki Iwashita
  • Patent number: 10138973
    Abstract: A fluid damper device and an apparatus with thereof are provided. In this fluid damper device, a protruded part of a valve body protrudes from a base part toward an outer side in the radial direction of the turning shaft, and toward one side around an axial line of the turning shaft, and a valve body support part of the turning shaft is equipped with a base part support part between a first protruded part and a second protruded part. An end part on an outer side in the radial direction of the first protruded part is provided with an inclined surface inclined with respect to an inner side portion of the valve body, and a space between the inner side portion and the end part increases from a second direction toward the first direction when the valve body is in the open position.
    Type: Grant
    Filed: June 4, 2015
    Date of Patent: November 27, 2018
    Assignee: NIDEC SANKYO CORPORATION
    Inventor: Naoya Mihara
  • Publication number: 20180328439
    Abstract: The fluid damper device includes a rotor inserted into a case, and a cover fixed to an opening portion of the case. A thin portion is formed at an end portion of the case on one side in an axis direction, and a contact portion which is in contact with a small-diameter portion of the cover in the axis direction is formed at four positions of an inner circumferential surface of the thin portion at equal angular intervals. A partitioning convex portion which partitions a damper chamber in a circumferential direction is formed on an inner circumferential surface of the case, and the contact portions are formed at positions corresponding to the partitioning convex portion in the circumferential direction. A concave portion recessed radially outward is formed at a position different from the contact portion in the circumferential direction, and a welding convex portion is formed in the concave portion.
    Type: Application
    Filed: May 11, 2018
    Publication date: November 15, 2018
    Applicant: NIDEC SANKYO CORPORATION
    Inventor: Naoya MIHARA
  • Patent number: 10041559
    Abstract: A fluid damper device and an apparatus with thereof are provided. In a damper chamber of this fluid damper device, a protruded part of a valve body protrudes from a base part toward the outside in the radial direction of a turning shaft, and toward one side around the axial line of the turning shaft, and a valve body support part of the turning shaft is equipped with a base part support part between a first protruded part and a second protruded part. An inner side portion of the protruded part of the valve body has a first portion and a second portion separated from each other in the direction in which the protruded part protrudes, and when the valve body is in the open position this first portion and second portion are supported by a receiving part formed on the first protruded part of the turning shaft.
    Type: Grant
    Filed: June 4, 2015
    Date of Patent: August 7, 2018
    Assignee: NIDEC SANKYO CORPORATION
    Inventor: Naoya Mihara
  • Publication number: 20170314311
    Abstract: A fluid damper device may include a tube-shaped case with a bottom wall, a tube part and a partitioning protruded part protruded from the tube part, a turning shaft provided with a body part which faces a first end face of the partitioning protruded part and a flange part enlarged to an outer side in the radial direction from the body part and faces a second end face of the partitioning protruded part, a valve body supported on an outer side of the body part, and fluid filled on an inner side of the case. A face of the flange part is provided with a first region structured to contact the partitioning protruded part and a second region where a distance between the second end face and the flange part is set to be wider than the first region along one direction in a circumferential direction.
    Type: Application
    Filed: April 26, 2017
    Publication date: November 2, 2017
    Inventor: Naoya Mihara
  • Publication number: 20170314633
    Abstract: A fluid damper device may include a tube-shaped case including a bottom wall, a tube part extended from the bottom wall, and a partitioning protruded part protruded to an inner side from an inner peripheral face of the tube part, and a turning shaft including a body part facing a first end face of the partitioning protruded part, and a flange part which is enlarged from the body part and faces a second end face of the partitioning protruded part, a valve body supported by the body part, and fluid filled within the case. The first end face of the partitioning protruded part is provided with a first rib protruded toward the body part and extended in the axial line direction and a second rib protruded toward the body part and extended in the axial line direction at a position separated in a circumferential direction from the first rib.
    Type: Application
    Filed: April 26, 2017
    Publication date: November 2, 2017
    Inventors: Naoya Mihara, Hiroyuki Iwashita
  • Publication number: 20170130795
    Abstract: A fluid damper device and an apparatus with thereof are provided. In a damper chamber of this fluid damper device, a protruded part of a valve body protrudes from a base part toward the outside in the radial direction of a turning shaft, and toward one side around the axial line of the turning shaft, and a valve body support part of the turning shaft is equipped with a base part support part between a first protruded part and a second protruded part. An inner side portion of the protruded part of the valve body has a first portion and a second portion separated from each other in the direction in which the protruded part protrudes, and when the valve body is in the open position this first portion and second portion are supported by a receiving part formed on the first protruded part of the turning shaft.
    Type: Application
    Filed: June 4, 2015
    Publication date: May 11, 2017
    Applicant: NIDEC SANKYO CORPORATION
    Inventor: Naoya MIHARA
  • Publication number: 20170114855
    Abstract: A fluid damper device and an apparatus with thereof are provided. In this fluid damper device, a protruded part of a valve body protrudes from a base part toward an outer side in the radial direction of the turning shaft, and toward one side around an axial line of the turning shaft, and a valve body support part of the turning shaft is equipped with a base part support part between a first protruded part and a second protruded part. An end part on an outer side in the radial direction of the first protruded part is provided with an inclined surface inclined with respect to an inner side portion of the valve body, and a space between the inner side portion and the end part increases from a second direction toward the first direction when the valve body is in the open position.
    Type: Application
    Filed: June 4, 2015
    Publication date: April 27, 2017
    Applicant: NIDEC SANKYO CORPORATION
    Inventor: NAOYA MIHARA
  • Patent number: D776669
    Type: Grant
    Filed: September 10, 2015
    Date of Patent: January 17, 2017
    Assignee: NIDEC SANKYO CORPORATION
    Inventor: Naoya Mihara
  • Patent number: D777170
    Type: Grant
    Filed: September 10, 2015
    Date of Patent: January 24, 2017
    Assignee: NIDEC SANKYO CORPORATION
    Inventor: Naoya Mihara