Patents by Inventor Osamu Hachuda

Osamu Hachuda 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: 20210066870
    Abstract: An opening/closing mechanism that allows a cover member to be biased according with the degree of opening. A solution is that an opening/closing mechanism of an opening/closing body, comprises: a cover member 15 opening and closing around a shaft center of a third shaft 33 and disposed on a base portion 23, and an opening/closing body 10 in which the cover member 15 is biased toward an opening direction by a biasing force of a spring member 21 wherein a spring support portion 35 is provided on the base portion 23, and a spring receiver 37 is provided on the cover member 15, and in accordance with more opening of the cover member 15, a distance from the spring base portion 41b of the spring member 21 to an abutting position in the spring extending portion 41a with the spring receiver 37 becomes longer and the biasing force decreases.
    Type: Application
    Filed: December 13, 2018
    Publication date: March 4, 2021
    Applicant: ENPLAS CORPORATION
    Inventors: Osamu Hachuda, Shin KOBAYASHI
  • Publication number: 20210066871
    Abstract: To provide a socket for electrical component that allows an electric component to be pushed down adequately in accordance with the kind of the contact pins or the terminal of the electrical component. An IC socket for electrical component comprising: a socket body 13 accommodating an IC package 11; a cover member 15 for pressing the accommodated IC package 11; and a lever member 17 for pressing the cover member 15. A long hole 23h is provided on the socket body 13 to movably support the cover member 15, a third shaft 33 supported by the long hole 23h is provided on the cover member 15, and the cover member 15 is configured to be closed so that the cover member 15 is pushed down along the long hole 23h.
    Type: Application
    Filed: December 13, 2018
    Publication date: March 4, 2021
    Applicant: ENPLAS CORPORATION
    Inventor: Osamu Hachuda
  • Publication number: 20200335923
    Abstract: An opening/closing mechanism of a cover member that can easily push down the cover member by the lever member even if the force from the base member side to the cover member is increased, improving the operability of the lever member. A solution is that the lever member 17 is rotatably supported to the base member 23 by the first shaft 31, the link plate 29 is mounted to the lever member 17 by the second shaft 32, the cover member 15 is mounted to the link plate 29 by the third shaft 33, and the link plate 29 is rotated around the axis of the first shaft 31 in the direction in which the lever member 17 closes, so that the link plate 29 moves through the second shaft 32, and the link plate 29 moves, so that the cover member 15 is depressed through the third shaft 33.
    Type: Application
    Filed: December 13, 2018
    Publication date: October 22, 2020
    Applicant: ENPLAS CORPORATION
    Inventor: Osamu HACHUDA
  • Publication number: 20200321260
    Abstract: To provide a socket for electrical component that allows an electrical component to be easily accommodated and to be able to be accommodated and be used even if the electrical component is large. The IC socket 10 comprises a socket body 13 accommodating an IC package 11; a cover member 15 for pressing the IC package 11; and a lever member 17 for pressing the cover member 15. The cover member 15 and the lever member 17 are rotatably connected to the same side end side of the socket body 13, and a pressing means 25, for pushing down the cover member 15 by closing the lever member 17 at the state that the cover member 15 is closed, is provided.
    Type: Application
    Filed: December 13, 2018
    Publication date: October 8, 2020
    Applicant: ENPLAS CORPORATION
    Inventor: Osamu Hachuda
  • Patent number: 10797423
    Abstract: An electric contact including a first member portion to be in contact with a first electric component and a second member portion to be in contact with a second electric component. The first member portion is formed to be tubular by an electrically conductive material plate member a part of which is formed of wave shape portions, and the first member portion includes a first contact portion to be in contact with the first electric component and a spring portion formed by the wave shape portions. The second member portion is constructed by a rod member and includes a second contact portion to be in contact with the second electric component and an insert portion inserted into the spring portion. The first and second contact portions are urged to separate each other while the first and second member portions are contracted with against urging force of the spring portion.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: October 6, 2020
    Assignee: ENPLAS CORPORATION
    Inventor: Osamu Hachuda
  • Publication number: 20200091644
    Abstract: An electric contact including a first member portion to be in contact with a first electric component and a second member portion to be in contact with a second electric component. The first member portion is formed to be tubular by an electrically conductive material plate member a part of which is formed of wave shape portions, and the first member portion includes a first contact portion to be in contact with the first electric component and a spring portion formed by the wave shape portions. The second member portion is constructed by a rod member and includes a second contact portion to be in contact with the second electric component and an insert portion inserted into the spring portion. The first and second contact portions are urged to separate each other while the first and second member portions are contracted with against urging force of the spring portion.
    Type: Application
    Filed: December 22, 2017
    Publication date: March 19, 2020
    Applicant: ENLAS CORPORATION
    Inventor: Osamu HACHUDA
  • Publication number: 20190348786
    Abstract: An electric contact configured to make a section between a first contact part and a second contact part extendable/contractible. A spring part has a wave-like shape by continuously forming wave-shaped parts alternately on one and the other sides of an axis L as a center for connecting the first contact part and the second contact part, and is formed into a cylindrical shape while having a projection of the wave-shaped part on one side confronting a recess between projections of the wave-shaped parts on the other side. The projection of the wave-shaped part on the one side enters into the recess between the wave-shaped parts on the other side to bring the projection on the one side into abutment on the projection adjacent to the recess upon contraction of the spring part to stop a contracting motion, and establish a conduction state between the projections abutted on each other.
    Type: Application
    Filed: December 22, 2017
    Publication date: November 14, 2019
    Applicant: ENPLAS CORPORATION
    Inventor: Osamu HACHUDA
  • Patent number: 10044127
    Abstract: A contact pin to electrically connect a first electrical component to a second electrical component and contact with the first and second electrical components at a sufficiently large contact pressure. The contact pin includes a first plunger with a first contact portion and a second plunger with a second contact portion. An expandable meander portion is formed on the second plunger. A contact piece to conduct electricity between the first and second plungers is provided to guide the expanding and shrinking operation of the meander portion. The first and second plungers are conducted via the contact piece when the first electrical component is electrically connected to the second electrical component, and the meander portion is shrunk to bring the first contact portion of the first plunger and the second contact portion of the second plunger into contact with the first and second electrical components at a sufficiently large contact pressure.
    Type: Grant
    Filed: February 28, 2017
    Date of Patent: August 7, 2018
    Assignee: ENPLAS CORPORATION
    Inventor: Osamu Hachuda
  • Patent number: 9859641
    Abstract: The present invention aims to improve heat dissipation effect for an electrical component in a socket for electrical component in which a socket body and a cover member are separated. According to an embodiment, a cover member includes a frame-like cover body including an opening in a middle portion thereof, a heatsink provided to penetrate through the opening of the frame-like cover body, an elevating part supporting the heatsink, and a pressing part that is moveable to press the elevating part so as to press the heatsink against the electrical component. While the heatsink is pressed against the electrical component, the electrical component is fixed to the housing portion of the socket body. Accordingly, it is possible to make the heatsink perform heat dissipation for the electrical component. Thus, it is possible to obtain excellent heat dissipation effect with respect to the electrical component.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: January 2, 2018
    Assignee: ENPLAS CORPORATION
    Inventor: Osamu Hachuda
  • Patent number: 9755387
    Abstract: A socket for electrical component capable of pressing and fixing an electrical component. A pressing part includes a first cam rotatably supported by the body part, and a second cam supported by the first cam. An elevating part includes a cam locking part provided on a rotational orbit of the second cam. A tip of the second cam is formed such that the tip of the second cam passes over the cam locking part when the elevating part is moved down by making the tip of the second cam abut against the elevating part and rotate, and the tip of the second cam is locked by the cam locking part so as to prevent the rotation when an attempt is made to perform the rotation in the opposite direction. The rotation in the opposite direction is enabled by moving the second cam in the radial direction of the rotation.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: September 5, 2017
    Assignee: ENPLAS CORPORATION
    Inventor: Osamu Hachuda
  • Publication number: 20170250486
    Abstract: A contact pin to electrically connect a first electrical component to a second electrical component and contact with the first and second electrical components at a sufficiently large contact pressure. The contact pin includes a first plunger with a first contact portion and a second plunger with a second contact portion. An expandable meander portion is formed on the second plunger. A contact piece to conduct electricity between the first and second plungers is provided to guide the expanding and shrinking operation of the meander portion. The first and second plungers are conducted via the contact piece when the first electrical component is electrically connected to the second electrical component, and the meander portion is shrunk to bring the first contact portion of the first plunger and the second contact portion of the second plunger into contact with the first and second electrical components at a sufficiently large contact pressure.
    Type: Application
    Filed: February 28, 2017
    Publication date: August 31, 2017
    Applicant: ENPLAS CORPORATION
    Inventor: Osamu HACHUDA
  • Patent number: 9711899
    Abstract: A latch mechanism for securely locking a latch and a socket for electrical component. A cover member includes a cover body covering an upper side opening surface of a housing body, an elevating part supported by the cover body such that the elevating part can be moved up and down, and a pressing part supported by the cover body and moving down the elevating member. Top end portions of latch parts are rotatably supported on outside surfaces of the cover body. Bottom end portions of the latch parts are engaged with the housing body, so as to fix the cover body to the housing body. The elevating part is provided with latch locking parts that are engaged with the latch parts when moved down, so as to prevent the latch parts from rotating in a direction in which engagement between the latch parts and the housing body is released.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: July 18, 2017
    Assignee: ENPLAS CORPORATION
    Inventor: Osamu Hachuda
  • Publication number: 20170117665
    Abstract: A latch mechanism for securely locking a latch and a socket for electrical component. A cover member includes a cover body covering an upper side opening surface of a housing body, an elevating part supported by the cover body such that the elevating part can be moved up and down, and a pressing part supported by the cover body and moving down the elevating member. Top end portions of latch parts are rotatably supported on outside surfaces of the cover body. Bottom end portions of the latch parts are engaged with the housing body, so as to fix the cover body to the housing body. The elevating part is provided with latch locking parts that are engaged with the latch parts when moved down, so as to prevent the latch parts from rotating in a direction in which engagement between the latch parts and the housing body is released.
    Type: Application
    Filed: March 27, 2015
    Publication date: April 27, 2017
    Applicant: ENPLAS CORPORATION
    Inventor: Osamu HACHUDA
  • Publication number: 20170117652
    Abstract: Disclosed is a socket for electrical component in which a socket body and a cover member are separated. A cover member includes a frame-like cover body including an opening in a middle portion in the up and down directions, a heatsink provided to penetrate through the opening of the cover body, an elevating part supporting this heatsink, and a pressing part moving down the heatsink by pressing the elevating part so as to press the heatsink against the electrical component. By pressing the heatsink against the electrical component with the use of the pressing part, the electrical component is fixed to the housing portion of the socket body. Accordingly, it is possible to make the heatsink perform heat dissipation for the electrical component. Thus, it is possible to obtain excellent heat dissipation effect with respect to the electrical component.
    Type: Application
    Filed: March 27, 2015
    Publication date: April 27, 2017
    Applicant: ENPLAS CORPORATION
    Inventor: Osamu HACHUDA
  • Publication number: 20170110841
    Abstract: A socket for electrical component capable of pressing and fixing an electrical component, A pressing part includes a first cam rotatably supported by the body part, and a second cam supported by the first cam An elevating part includes a cam locking part provided on a rotational orbit of the second cam. A tip of the second cam is formed such that the tip of the second cam passes over the cam locking part when the elevating part is moved down by making the tip of the second cam abut against the elevating part and rotate, and the tip of the second cam is locked by the cam locking part so as to prevent the rotation when an attempt is made to perform the rotation in the opposite direction. The rotation in the opposite direction is enabled by moving the second cam in the radial direction of the rotation.
    Type: Application
    Filed: March 27, 2015
    Publication date: April 20, 2017
    Applicant: ENPLAS CORPORATION
    Inventor: Osamu HACHUDA
  • Patent number: 8475196
    Abstract: An unlubricated bearing structure for supporting a rocking arm of an IC socket includes an arm support as an operating member that supports the rocking arm, a support shaft, made of metal, fitted and fixed to the arm support, and a cylindrical bush, made of metal, mounted to the support shaft so that the cylindrical bush is fitted into a bearing hole formed to the rocking arm. The support shaft, the cylindrical bush and the rocking arm are arranged such that a first clearance is formed between an outer peripheral surface of the support shaft and an inner peripheral surface of the cylindrical bush, and a second clearance is formed between an outer peripheral surface of the cylindrical bush and an inner peripheral surface of the bearing hole.
    Type: Grant
    Filed: September 7, 2011
    Date of Patent: July 2, 2013
    Assignee: Enplas Corporation
    Inventor: Osamu Hachuda
  • Patent number: 8439700
    Abstract: A socket for electrical parts which makes a locater plate fulfill the function satisfactory and enhance the operational feeling of the locater plate. In a preferred embodiment of the present invention, the lock members are fixed on the vertically movable locater plate. The top of the lock member is the first engaging potion formed so as to have a hook shape, and the bent double portion thereof is a second engaging portion. The first engaging portion regulates the downward movement of the locater plate at the bottom position. The second engaging portion which regulates the upward movement and releases the regulation of the upward movement by deforming elastically when a force larger than a predetermined value is applied.
    Type: Grant
    Filed: November 17, 2011
    Date of Patent: May 14, 2013
    Assignee: Enplas Corporation
    Inventor: Osamu Hachuda
  • Publication number: 20120135627
    Abstract: A socket for electrical parts which makes a locater plate fulfill the function satisfactory and enhance the operational feeling of the locater plate. In a preferred embodiment of the present invention, the lock members are fixed on the vertically movable locater plate. The top of the lock member is the first engaging potion formed so as to have a hook shape, and the bent double portion thereof is a second engaging portion. The first engaging portion regulates the downward movement of the locater plate at the bottom position. The second engaging portion which regulates the upward movement and releases the regulation of the upward movement by deforming elastically when a force larger than a predetermined value is applied.
    Type: Application
    Filed: November 17, 2011
    Publication date: May 31, 2012
    Applicant: ENPLAS CORPORATION
    Inventor: Osamu HACHUDA
  • Publication number: 20120064756
    Abstract: An unlubricated bearing structure for supporting a rocking arm of an IC socket includes an arm support as an operating member that supports the rocking arm, a support shaft, made of metal, fitted and fixed to the arm support, and a cylindrical bush, made of metal, mounted to the support shaft so that the cylindrical bush is fitted into a bearing hole formed to the rocking arm. The support shaft, the cylindrical bush and the rocking arm are arranged such that a first clearance is formed between an outer peripheral surface of the support shaft and an inner peripheral surface of the cylindrical bush, and a second clearance is formed between an outer peripheral surface of the cylindrical bush and an inner peripheral surface of the bearing hole.
    Type: Application
    Filed: September 7, 2011
    Publication date: March 15, 2012
    Applicant: ENPLAS CORPORATION
    Inventor: Osamu HACHUDA
  • Patent number: 8051731
    Abstract: A spring reaction force converting apparatus has first and second members arranged to be in parallel with and opposed to each other and to be capable of being moved toward and apart from each other, a spring element arranged to be extended between the first and second members in parallel thereto, a link mechanism holding the spring element between the first and second members such that the spring element is capable of being expanded and contracted, the link mechanism being connected to the first and second members; a stopper member maintaining the spring element held by the link mechanism in a condition in which the spring element is compressed by a predetermined amount in an initial condition, and an arrangement thereof in which a reaction force of the spring element is converted to a different type of force transmitted to the first and second members through the link mechanism.
    Type: Grant
    Filed: March 18, 2008
    Date of Patent: November 8, 2011
    Assignee: Enplas Corporation
    Inventor: Osamu Hachuda