Patents Assigned to Enplas Corporation
  • Patent number: 11381047
    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: Grant
    Filed: December 13, 2018
    Date of Patent: July 5, 2022
    Assignee: ENPLAS CORPORATION
    Inventor: Osamu Hachuda
  • Publication number: 20220202971
    Abstract: A sterilization device includes: a reservoir, a supply port, an output port and a light source. The reservoir part includes a first half reservoir part having a substantially hemispherical shape and located on an upstream side in a flow direction of the fluid at the supply port, and a second half reservoir part having a substantially hemispherical shape and located on a downstream side in the flow direction. The supply port opens to the first half reservoir part. The output port opens to the second half reservoir part. When the supply port and the output port are projected on a virtual plane orthogonal to an extending direction of an inner surface of a supply channel connected to the reservoir part at the supply port, a center of gravity of the supply port and a center of gravity of the output port are separated from each other.
    Type: Application
    Filed: December 21, 2021
    Publication date: June 30, 2022
    Applicant: Enplas Corporation
    Inventors: Toshinori OKADA, Tetsuya TOKIWA, Natsuki INAOKA
  • Publication number: 20220187359
    Abstract: A socket for an electrical component including a socket main body 11 including a contact pin, an operating member 12 provided in the socket main body 11 in a vertically movable manner and urged upward, an opening/closing body 14 provided in the socket main body 11 as being capable of being opened and closed and configured to press an electrical component arranged in the socket main body 11 by being closed, an opening/closing link mechanism 15 connected to the opening/closing body 14 with a base end part 15a thereof connected to the socket main body 11 and the operating member 12 to close the opening/closing body 14 when being lifted by the operating member 14, and a depression mechanism 16 which depresses a leading end part 15b of the opening/closing link mechanism 15 when the opening/closing body 14 is closed.
    Type: Application
    Filed: April 2, 2020
    Publication date: June 16, 2022
    Applicant: ENPLAS CORPORATION
    Inventor: Yoshinobu HAGIWARA
  • Publication number: 20220168729
    Abstract: A container includes a container main body including a housing part and an opening, and a lid configured to close the opening and including an insertion part configured to be inserted to the opening. The outer peripheral surface of the insertion part includes first and second protrusions and first and second recesses. The inner peripheral surface of the opening includes third and fourth protrusions and third and fourth recesses. When the insertion part is temporarily inserted to the opening, the third protrusion presses the first recess in a state where the first protrusion is housed in the third recess. When the insertion part is fully inserted to the opening, the third protrusion presses the second recess and the fourth protrusion presses the first recess in a state where the first protrusion is housed in the fourth recess and the second protrusion is housed in the third recess.
    Type: Application
    Filed: November 25, 2021
    Publication date: June 2, 2022
    Applicant: Enplas Corporation
    Inventors: Koji NOGUCHI, Shigeru UEMURA
  • Publication number: 20220163851
    Abstract: A light flux controlling member includes a first optical surface, a second optical surface, a third optical surface, and a fourth optical surface. A part of light emitted from the light-emitting element and entered from the first optical surface is emitted from the second optical surface to outside of the light flux controlling member after being sequentially internally reflected by the second optical surface, the third optical surface and the fourth optical surface. A part of light emitted from the light-emitting element that is incident on the first optical surface is Fresnel-reflected, reflected by a surface of the substrate toward the first optical surface to enter the light flux controlling member from the first optical surface, and then emitted from the second optical surface to the outside of the light flux controlling member.
    Type: Application
    Filed: November 17, 2021
    Publication date: May 26, 2022
    Applicant: Enplas Corporation
    Inventors: Takuro MOMOI, Hiroshi TAKATORI
  • Patent number: 11338487
    Abstract: A slide piece driving mechanism includes a side surface guiding portion, a shaft portion, and stopper releasing element. The side surface guiding portion is disposed at a movable side mold to guide a side surface of a slide piece to be slidably movable. The shaft portion of a stopper is disposed at the side surface guiding portion. When the slide piece reaches an upper end position, the shaft portion engages with a stopper hole of the slide piece to prevent the slide piece from falling from the upper end position due to own weight. The stopper releasing element releases the engagement of the shaft portion of the stopper with the stopper hole to allow the slide piece from falling from the upper end position due to its own weight.
    Type: Grant
    Filed: April 18, 2017
    Date of Patent: May 24, 2022
    Assignee: ENPLAS CORPORATION
    Inventor: Hideaki Naoi
  • Patent number: 11329411
    Abstract: This electrical connection socket for relaying exchange of electrical signals between a first electrical component and a second electrical component, is provided with: a signal pin which is inserted in a communication hole of a metallic casing so as to form a coaxial line path between the inner wall surface of the communication hole and the outer circumferential surface of the signal pin so that one end of the signal pin is electrically connected to a terminal of the first electrical component while the other end is electrically connected to a terminal of the second electrical component; and a holding member which holds the signal pin in the communication hole such that the outer circumferential surface of the signal pin is separated from the inner wall surface of the communication hole, wherein the characteristic impedance of a signal path formed by the signal pin in a first region where the signal pin is held by the holding member is smaller than a predetermined characteristic impedance which is a reference
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: May 10, 2022
    Assignee: ENPLAS CORPORATION
    Inventors: Kazutaka Koshiishi, Keiichi Narumi
  • Publication number: 20220137093
    Abstract: A contact pin includes: a first plunger including a first contact portion provided at an upper end, and a hollow body portion provided below the first contact portion; a second plunger including: a second contact portion provided at a lower end; a first taper portion that is provided above the second contact portion and enlarges in diameter toward the second contact portion; a small diameter portion provided above the first taper portion; and a large diameter portion that is provided above the small diameter portion and is inserted into the body portion to abut on an inner wall surface of the body portion; and a spring for energizing the first and second contact portions to be separated from each other. The first taper portion is capable of abutting on a lower end of the body portion in a case where the first and second contact portions approach each other.
    Type: Application
    Filed: December 2, 2019
    Publication date: May 5, 2022
    Applicant: Enplas Corporation
    Inventor: Yuki UEYAMA
  • Patent number: 11310969
    Abstract: This emitter has an emitter body and a pedestal. The emitter body includes: a water intake part for introducing irrigation liquid; a pressure reducing flow passage groove which is for forming a pressure reducing flow passage which communicates with the water intake part and allows the irrigation liquid to flow out while reducing the pressure of the irrigation liquid; an accommodation part which communicates with the pressure reducing flow passage groove and into which the irrigation liquid flows while the pedestal is accommodated therein; and a flexible diaphragm part which approaches the pedestal upon receiving the pressure of the irrigation liquid inside a tube while the pedestal is accommodated in the accommodation part. The pedestal has through-holes for discharging the irrigation liquid that flowed into the accommodation part. The emitter body and the pedestal are connected through a hinge part.
    Type: Grant
    Filed: May 22, 2019
    Date of Patent: April 26, 2022
    Assignee: Enplas Corporation
    Inventors: Kazuma Yanagisawa, Koki Ono
  • Patent number: 11313533
    Abstract: A light flux controlling member includes an incidence surface, a reflection surface, an annular groove and an emission surface. The annular groove is disposed so as not to intersect an optical path of light incident on the incidence surface, reflected by the reflection surface, and reaching the emission surface. The first annular surface is formed so that its distance from the central axis increases, from the back side to the front side, and refracts, toward the front surface, light emitted from the light emitting center of the light emitting element, and directly reaching the first annular surface. The second annular surface is formed so that its distance from the central axis increases, from the back side to the front side, and refracts, toward the front side, light emitted from the light emitting element, incident on the incidence surface, and directly reaching the second annular surface.
    Type: Grant
    Filed: March 17, 2021
    Date of Patent: April 26, 2022
    Assignee: Enplas Corporation
    Inventor: Takuro Momoi
  • Patent number: 11311881
    Abstract: The purpose of the present invention is to provide a liquid handling method that makes it possible to simply isolate a droplet, a fluid handling device used in this method, and a fluid handling system. This fluid handling method serves to flow a fluid including a solvent and a droplet through a fluid handling device comprising an inlet, a first flow path having one end connected to the inlet, a chamber connected to the other end of the first flow path, a second flow path having one end connected to the chamber, and an outlet connected to the other end of the second flow path. This fluid handling method includes an introduction step for introducing the fluid through the inlet and accommodating the droplet in the chamber, a rotation step for rotating the fluid handling device after the introduction step, and a removal step for removing the droplet from the inside of the chamber after the rotation step.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: April 26, 2022
    Assignee: Enplas Corporation
    Inventor: Nobuya Sunaga
  • Patent number: 11316313
    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: Grant
    Filed: December 13, 2018
    Date of Patent: April 26, 2022
    Assignee: ENPLAS CORPORATION
    Inventors: Osamu Hachuda, Shin Kobayashi
  • Publication number: 20220120941
    Abstract: A light flux controlling member includes: a vortex surface having a continuous or stepwise spiral shape; and a plurality of ridges radially disposed around a center of a spiral in the vortex surface. The height of the plurality of ridges decreases toward the center.
    Type: Application
    Filed: October 13, 2021
    Publication date: April 21, 2022
    Applicant: Enplas Corporation
    Inventors: IZAWA Takahiro, OSHIMA Satoshi
  • Publication number: 20220112951
    Abstract: Provided is a plunger including: a plunger body; a first surface configured to come into contact with an inner peripheral surface of the cylindrical member; a second surface disposed on a base end side relative to the first surface, the second surface having an outer diameter that is smaller than that of the first surface; an outer stepped surface disposed between the first surface and the second surface; a first housing disposed in an area at least partly corresponding to the second surface in the recess, the first housing being provided for housing a tip part of the pin; a second housing disposed on the base end side relative to the first housing, the second housing having an inner diameter that is smaller than a largest inner diameter of the first housing; and an inner stepped surface disposed between the first housing and the second housing.
    Type: Application
    Filed: October 7, 2021
    Publication date: April 14, 2022
    Applicant: Enplas Corporation
    Inventors: Koji NOGUCHI, Shigeru UEMURA
  • Patent number: 11300195
    Abstract: Separate structural units for an inner gear and a housing of a planetary gear device include an inner gear with a first raised portion formed on the outer peripheral surface of the inner gear, where the first raised portion extends towards in a direction that is inclined with respect to the axial direction of the inner gear. A housing includes a second raised portion formed on an inner peripheral surface, where the second raised portion extends in a direction that is inclined in respect to the axial direction. The housing contains the inner gear such that there is a gap formed between the inner peripheral surface of the housing and the outer peripheral surface of the inner gear. Movement of the inner gear within the interior of the housing is limited through linear contact of the first raised portion and the second raised portion.
    Type: Grant
    Filed: October 1, 2020
    Date of Patent: April 12, 2022
    Assignee: ENPLAS CORPORATION
    Inventors: Toshiki Kawada, Shohei Ishida, Takuya Kaneko
  • Publication number: 20220097053
    Abstract: A fluid handling device according to an embodiment of the present invention is a fluid handling device that includes a substrate and a film bonded to the substrate and that is configured to process a fluid, the fluid handling device including: a channel; a well connected to the channel; a rotary membrane valve disposed between the channel and the well; and a rotary membrane pump connected to the channel. For example, in the fluid handling device according to the embodiment of the present invention, a filter is disposed in the well or between the well and the rotary membrane valve for separating a blood cell component.
    Type: Application
    Filed: September 22, 2021
    Publication date: March 31, 2022
    Applicant: Enplas Corporation
    Inventor: Nobuya SUNAGA
  • Publication number: 20220090669
    Abstract: A gear includes: an outer circumferential rim provided integrally with a plurality of tooth portions disposed side-by-side in a circumferential direction on an outer circumferential surface; and a plurality of reinforcing ribs disposed inside the outer circumferential rim to be spaced from each other in the circumferential direction by thinning portions, wherein a position where each of the plurality of reinforcing ribs and the outer circumferential rim are joined corresponds, in the circumferential direction, to a position of a tooth groove between the plurality of tooth portions.
    Type: Application
    Filed: September 16, 2021
    Publication date: March 24, 2022
    Applicant: Enplas Corporation
    Inventors: Kenjiro TAKI, Kazuyuki SAKAMAKI
  • Patent number: 11280808
    Abstract: A plunger of the probe has a slider portion engaged with a plunger guide hole formed in a socket body, which is prevented from rotating, and first and second positioning surfaces having different vertical positions along a central axis of the probe by cutting two places of a rounded bar member in a radial direction. The probe receptacle has a first abutting protrusion on which the first positioning surface is abuttable and a second abutting protrusion on which the second positioning surface is abuttable when the probe is inserted in a correct posture. When the plunger is inserted in an erroneous posture, the first positioning surface abuts on the second abutting protrusion to prevent the plunger from projecting from the plunger guide hole or project the plunger by an amount less than the design dimension.
    Type: Grant
    Filed: May 21, 2019
    Date of Patent: March 22, 2022
    Assignee: ENPLAS CORPORATION
    Inventors: Hisao Ohshima, Yasushige Komatsu
  • Publication number: 20220082180
    Abstract: A fluid handling device includes: an introduction part configured to introduce liquid; an ejection part configured to eject liquid; a channel including one end connected to the introduction part and another end connected to the ejection part; and a valve disposed at the channel. An inner surface of the introduction part has water-repellency, and an inner surface of the ejection part and at least a part of an inner surface of the channel do not have water-repellency.
    Type: Application
    Filed: September 14, 2021
    Publication date: March 17, 2022
    Applicant: Enplas Corporation
    Inventor: Takumi YAMAUCHI
  • Patent number: 11275270
    Abstract: A surface light source device includes a housing; one or more substrates disposed in the housing, each of the one or more substrates having a substantially rectangular shape; a plurality of light-emitting devices disposed on the one or more substrates; and a light diffusion plate disposed over the plurality of light-emitting devices. Each of the light-emitting devices includes a light-emitting element and a light flux controlling member. The plurality of light-emitting devices is disposed on two or more first virtual lines that are parallel to each other and are parallel to one side of each of the one or more substrates. A light-emitting surface of the light-emitting element has a substantially rectangular shape in plan view. Of angles between each side of the light-emitting surface of the light-emitting element and each of the two or more first virtual lines, a smallest angle is 25 degrees to 45 degrees.
    Type: Grant
    Filed: December 23, 2020
    Date of Patent: March 15, 2022
    Assignee: ENPLAS CORPORATION
    Inventor: Takuro Momoi