Patents Assigned to Doyo Engineering Co., Ltd.
  • Patent number: 12568943
    Abstract: Provided is a fishing reel equipped with a concealment cover for side concealment of a level wind. The fishing reel protects the level wind by covering an opening on each side of a level wind mounting portion with a dedicated concealment cover, and allows a user to decorate the fishing reel by changing the color of the concealment cover to suit the user's taste. To this end, the fishing reel includes a frame configured to have a concealment cover mounting portion provided between side cover mounting portions and a top cover mounting portion, and a concealment cover coupled to the concealment cover mounting portion and configured to cover an opening on each side of a level wind mounting portion.
    Type: Grant
    Filed: March 8, 2024
    Date of Patent: March 10, 2026
    Assignee: DOYO ENGINEERING CO., LTD.
    Inventor: Kang Ho Hyun
  • Patent number: 12439902
    Abstract: Provided is a fishing reel having a front cover protecting a level wind, wherein the front cover is separately formed of a high strength lightweight metal material such as aluminum to protect the level wind more safe and the front cover is easily assembled with various designs to improve the exterior design, and the front cover allows a user to decorate and use the fishing reel on the basis of the user's preference. The fishing reel including the metal front cover includes a frame including side walls on opposite sides thereof and forming a spool mounting part and a level wind mounting part, and the front cover coupled to both front ends of the side walls on the opposite sides to protect a level wind, and made of a metal material and including a coupling part bent toward the frame and coupled to each of the side walls.
    Type: Grant
    Filed: May 11, 2023
    Date of Patent: October 14, 2025
    Assignee: DOYO ENGINEERING CO., LTD.
    Inventor: Kang Ho Hyun
  • Patent number: 12127542
    Abstract: Provided is a fishing reel equipped with a lock lever having a function to cover a protrusion of a frame. Specifically, by forming a protrusion at a lower portion of a front end of the frame, in particular, by forming a protrusion on which a worm shaft of level wind is installed, the appearance of the frame is maintained sharply to improve grip. In addition, the fishing reel enables convenient use of the lock lever while enhancing design aesthetics by covering the protrusion with the lock lever for detachably attaching a side cover. The fishing reel includes a frame having a spool mount and a palm sidewall, a palm-side cover detachably attached to the palm sidewall, and a lock lever interposed between the palm sidewall and the palm side cover and configured to lock or unlock the palm side cover.
    Type: Grant
    Filed: September 28, 2022
    Date of Patent: October 29, 2024
    Assignee: DOYO ENGINEERING CO., LTD.
    Inventor: Kang Ho Hyun
  • Patent number: 11950583
    Abstract: Provided is a fishing reel having a magnet disposed in a circumferential direction crossing the axial direction of a spool and, more particularly, a fishing reel that can increase a braking force control range even without an increase in size and can maximize a casting distance by preventing backlash and preventing reduction of a casting distance due to a braking force by using a magnet brake. The fishing reel includes a spool having a drum on which a fishing line is wound, and a magnet brake including a holder disposed on a side of the spool and a magnet mounted on the holder in a circumferential direction crossing an axial direction of the spool to have inner and outer facing surfaces and generating a braking force to the spool.
    Type: Grant
    Filed: October 14, 2022
    Date of Patent: April 9, 2024
    Assignee: DOYO ENGINEERING CO., LTD.
    Inventor: Kang Ho Hyun
  • Patent number: 11877569
    Abstract: Provided is a fishing reel spool that has a line knot hider. The spool for a fishing reel includes a knot hider for hiding a knot of a fishing line inside the surface of a winding part such that a line is uniformly wound on the winding section without a knot exposed outside the surface of the winding section, thereby not interfering with thumbing in casting and enabling even a beginner to easily connect and use a fishing line without connecting a fishing line to a spool using a complicated knotting manner. The spool for a fishing ring includes a drum-shaped winding part mounted on a reel body by a shaft and configured to wind a fishing line on an outer surface thereof, and a knot hider configured to hide a knot of the fishing line inside a surface of the winding part.
    Type: Grant
    Filed: August 11, 2022
    Date of Patent: January 23, 2024
    Assignee: DOYO ENGINEERING CO., LTD.
    Inventor: Kang Ho Hyun
  • Patent number: 11684054
    Abstract: Provided are a spool braking device and a fishing reel equipped with the spool braking device. In the spool braking device, a magnet holder with a magnet moves toward an axial direction of a spool using eddy current and thus controls a rotational speed of the spool through a varying magnetic force acting on a braking plate of the spool. The spool braking device is capable of preventing a decrease in a distance a lure travels during casting when the spool is rotated at a low speed and preventing a backlash phenomenon through a braking operation suitable for high-speed rotation of the spool.
    Type: Grant
    Filed: December 30, 2021
    Date of Patent: June 27, 2023
    Assignee: DOYO ENGINEERING CO., LTD.
    Inventor: Kang Ho Hyun
  • Patent number: 11172663
    Abstract: A fishing reel provided with a fixed constant brake and a movable inertial force brake is provided. In the fishing reel, a user may adjust a braking force to use according to his or her fishing method by utilizing only advantages of conventional centrifugal brakes, magnet brakes, and inertial force brakes, the advantages including prevention of pad wear, prevention of casting distance reduction and backlash when a spool rotates at a low speed, compatible use tailored to left-handed or right-handed handles, etc.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: November 16, 2021
    Assignee: DOYO ENGINEERING CO., LTD.
    Inventor: Kang Ho Hyun
  • Patent number: 11172661
    Abstract: A fishing reel having a movable inertia brake including braking magnets and a brake pad is provided. The fishing reel maximizes the advantages of a centrifugal brake, a magnet brake, and an inertia brake of the related art, such as abrasion prevention, the ability to prevent a decrease in the flying distance in casting when a spool is rotated at a low speed, and the ability to be used compatibly for a left-handed or right-handed handle. The fishing reel includes a spool plate including a spool cam, a brake pad, and a movable cam. The spool cam is fitted to a hub of a spool to rotate together with the spool, and has a pressing portion protruding to one side such that a lowest point and a highest point are connected on an incline in a radial direction.
    Type: Grant
    Filed: March 25, 2020
    Date of Patent: November 16, 2021
    Assignee: DOYO ENGINEERING CO., LTD.
    Inventor: Kang Ho Hyun
  • Patent number: 11134663
    Abstract: Provided is a fishing reel with movable magnet brake using a centrifugal force, the fishing reel including operation arms hinged in a spool and being rotated by a centrifugal force due to rotation of the spool, and a pad holder coupled to be able to move forward and backward in the longitudinal direction of a spool shaft and having a brake pad receiving attraction of a braking magnet, in which forward and backward positions of the pad holder are changed and the distance between the braking magnet and the brake pad is adjusted in accordance with a rotational angle of the operation arms due to a centrifugal force, whereby the braking force of the magnet brake decreases.
    Type: Grant
    Filed: January 20, 2020
    Date of Patent: October 5, 2021
    Assignee: DOYO ENGINEERING CO., LTD.
    Inventor: Kang Ho Hyun
  • Patent number: 11013222
    Abstract: Provided is a fishing reel provided with a bushing for anti-electrochemical corrosion. The fishing reel includes: a spool shaft coupled by passing through a spool and having opposite ends axially mounted on a frame; a pinion coupled by being inserted along an outer side of a shaft portion of one side of the spool shaft, thereby controlling on/off rotation of the spool shaft by moving back and forth in a longitudinal direction of the shaft; a bushing made of an insulating material fitted over and coupled with an outer peripheral surface of a body portion of the pinion; and support members supporting the outer peripheral surface of the bushing.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: May 25, 2021
    Assignee: DOYO ENGINEERING CO., LTD.
    Inventor: Kang Ho Hyun
  • Patent number: 11013223
    Abstract: Provided is a fishing reel. The fishing reel includes a frame having a nut mounting part, a tension nut screwed to the nut mounting part to adjust a distance in an axial direction of a spool shaft and having a tension adjusting part therein to press a first end of the spool shaft and thereby adjust rotating force of the spool, a first adjustment means configured to make a moving distance per rotation of the tension nut larger or smaller than a predetermined distance, and a second adjustment means configured to make the moving distance per rotation of the tension nut smaller or larger than the predetermined distance, in opposition to the moving distance per rotation of the tension nut by the first adjustment means.
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: May 25, 2021
    Assignee: DOYO ENGINEERING CO., LTD.
    Inventor: Kang Ho Hyun
  • Patent number: 10858164
    Abstract: A packing box for quick display including a first box body having a lower substrate with a plurality of seat portions each having an insert slit for a lower insert portion of packaged goods that have a panel type external insert portion on each of upper and lower sides, and a wall provided to surround the outside of the lower substrate. The wall includes a sidewall having an inclined portion configured to expose the packaged goods. The first box body is formed to realize a function of stable storage and stable transfer of goods, and increases convenience because it can display the goods in a packaged state without displaying the packaged goods one by one on a different display stand. The seat portion can maintain a normal state of each packaged goods and prevent collision of the packaged goods.
    Type: Grant
    Filed: May 23, 2018
    Date of Patent: December 8, 2020
    Assignee: DOYO ENGINEERING CO., LTD.
    Inventor: Kang Ho Hyun
  • Patent number: 10798928
    Abstract: Provided is a bait casting reel for preventing friction or break of a spool plate and a braking magnet due to contact by deformation of a rotary shaft of a spool or a friction washer, etc., by employing a variable spool plate coupled to be able to move left and right in the longitudinal direction of a spool shaft so that a user can easily and freely adjust a braking force after setting a maximum braking force of a braking magnet without replacing or changing parts, and by enabling a user to perform zero adjustment such that the spool plate and the braking magnet is minimally spaced to set a maximum braking force of the braking magnet by moving the spool plate and the braking magnet in contact with each other when the spool plate is moved the outermost side.
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: October 13, 2020
    Assignee: DOYO ENGINEERING CO., LTD.
    Inventor: Kang Ho Hyun
  • Patent number: 10791724
    Abstract: Provided is a fishing reel having a pinion support structure. The fishing reel is configured such that a spool shaft and a pinion are spaced apart from each other without being in contact with each other, so that it is possible to prevent reduction in casting distance and noise generation during casting due to friction between the spool shaft and the pinion. The fishing reel includes: a spool shaft provided such that opposite ends thereof are mounted axially between opposite side covers, and including a main shaft and a pinion shaft; and a clutch means fitted over the pinion shaft and moved forward and backward in a longitudinal direction of the pinion shaft, and including a pinion which is provided with a stopper at a second end portion to be engaged with the fastening pin.
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: October 6, 2020
    Assignee: DOYO ENGINEERING CO., LTD.
    Inventor: Kang Ho Hyun
  • Patent number: 10694728
    Abstract: Provided is a fishing reel having a tension nut retainer and, more particularly, a fishing reel having a tension nut retainer that prevents a tension nut from separating from a nut seat by being locked to the structure of a frame when the tension nut is moved to an end of the nut seat in order to prevent loss of the tension nut that is used to adjust tension of a spool.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: June 30, 2020
    Assignee: DOYO ENGINEERING CO., LTD.
    Inventor: Kang Ho Hyun
  • Patent number: 10617102
    Abstract: Provided is a fishing reel having a hidden lock lever for a palm-side first side cover. The fishing reel has a hidden lock lever for a palm-side first side cover in which an operating portion of the lock lever protrudes out of the first side cover when the first side cover is unlocked so that a user can immediately know that the first side cover is unlocked when holding the fishing reel, and the operating portion of the lock lever is hidden inside the first side cover so that a user can fish with the fishing reel in his/her hands without inconvenience.
    Type: Grant
    Filed: July 11, 2018
    Date of Patent: April 14, 2020
    Assignee: DOYO ENGINEERING CO., LTD.
    Inventor: Kang Ho Hyun
  • Patent number: 10609916
    Abstract: A fishing reel having a lock lever for opening and closing a palm-side first side cover on a side of a frame opposite to a handle. The first side cover is easily and quickly opened with one hand without risk of losing the cover, and the lock lever is automatically locked because the lock lever is recovered automatically by an elastic body. The fishing reel includes: a stop bar projecting from a palm-side mount of a frame; and a lock lever which includes a body shafted to an inner-side surface of the first side cover to be rotatable, a locking projection connected to the body to be turned together with the body when the body is rotated and blocked by the stop bar when the first side cover is closed, and an opening portion projecting from the body to be exposed outside the first side cover and rotating the body.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: April 7, 2020
    Assignee: DOYO ENGINEERING CO., LTD.
    Inventor: Kang Ho Hyun
  • Patent number: 10499625
    Abstract: Provided is a fishing reel having a natural drainage structure. The fishing reel includes a first mounting part and a second mounting part provided at opposite sides thereof, a frame having a spool mounted between the first and second mounting parts, a first side cover at a palm side, the first side cover being combined with the first mounting part, and a second side cover at a gear side, the second side cover being combined with the second mounting part, the fishing reel including: a drainage hole provided on a lower end part of at least one of edge side wall parts of the first and second mounting parts and the first and second side covers, thereby naturally draining moisture introduced into the fishing reel to outside of the fishing reel.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: December 10, 2019
    Assignee: DOYO ENGINEERING CO., LTD.
    Inventor: Kang Ho Hyun
  • Patent number: 10492480
    Abstract: Provided is a universal fishing reel in which an intermediate frame body is configured such that a third mounting portion for a spool of the frame body has a body surrounder covering the outer sides of both large-diameter portions having different sizes of spool bodies for winding a line to universally receive all different kinds of spools and the body surrounder has an inner diameter corresponding to the minimum large-diameter portions of different kinds of spools, or a first intermediate or second intermediate cover is configured such that a cover surrounder has an inner diameter corresponding to the minimum large-diameter portions of different kinds of spools when a gear-side first side cover or a palm-side second side cover has the cover surrounder covering the outer side of both large-diameter portions of a spool body.
    Type: Grant
    Filed: May 23, 2018
    Date of Patent: December 3, 2019
    Assignee: DOYO ENGINEERING CO., LTD.
    Inventor: Kang Ho Hyun
  • Patent number: D869602
    Type: Grant
    Filed: September 19, 2018
    Date of Patent: December 10, 2019
    Assignee: DOYO ENGINEERING CO., LTD.
    Inventor: Kang Ho Hyun