Patents by Inventor Yao-Chung Huang

Yao-Chung Huang 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: 20240099199
    Abstract: A garden shears has an anvil portion, a driving arm, a blade portion and a plurality of pivot shafts. The anvil portion sandwiched an anvil, and the anvil portion and the driving arm are pivoted together by a pivot shaft. A gear and the blade portion are disposed between the driving arm. The blade portion has a straight groove and a rack portion. A pivot shaft is used to pivot the gear and the driving together is engaged and another pivot shaft passes through the straight groove and the driving arm with the pivot shaft capable of sliding in the straight groove and the gear being engaged with the rack portion to achieve the effect of a stable speed.
    Type: Application
    Filed: September 26, 2022
    Publication date: March 28, 2024
    Inventor: Yao-Chung Huang
  • Publication number: 20240079850
    Abstract: A semiconductor device includes a first contact layer, a second contact layer, an active layer, a photonic crystal layer, a passivation layer, a first electrode and a second electrode. The first contact layer has a first surface and a second surface opposite to each other. Microstructures are located on the second surface. The second contact layer is located below the first surface. The active layer is located between the first contact layer and the second contact layer. The photonic crystal layer is located between the active layer and the second contact layer. The passivation layer is located on the second contact layer. The first electrode is located on the passivation layer and is electrically connected the first surface of the first contact layer. The second electrode is located on the passivation layer and is electrically connected to the second contact layer.
    Type: Application
    Filed: December 28, 2022
    Publication date: March 7, 2024
    Inventors: Wen-Cheng HSU, Yu-Heng HONG, Yao-Wei HUANG, Kuo-Bin HONG, Hao-Chung KUO
  • Publication number: 20220272905
    Abstract: An extendable garden shears includes: an outer tube, an inner tube, a telescopic control set, a cutting structure, a wheel unit and a pull string. Through the combination of the above structure, the shears are extendable without the pull string being directly exposed, and the shears has a cutting structure capable of providing different cutting angles.
    Type: Application
    Filed: March 1, 2021
    Publication date: September 1, 2022
    Inventor: Yao-Chung Huang
  • Patent number: 11324169
    Abstract: A garden shears has a first blade member, a second blade member, a controlling handle and a protecting member. The first blade member has a first cutting portion, a first aperture at a middle section, a first toothed section adjacent to the first aperture and below the first cutting portion. The second blade member has a second cutting portion, a second aperture at a middle section, a third aperture at a lower end. The controlling handle has a driving member with a fourth aperture and the second toothed section on a top edge at an upper section. The protecting member has a main body with two opposing ear portions, each ear portion having a fifth aperture and a sixth aperture.
    Type: Grant
    Filed: August 19, 2020
    Date of Patent: May 10, 2022
    Assignee: HO CHENG GARDEN TOOLS CO., LTD.
    Inventor: Yao-Chung Huang
  • Publication number: 20220061224
    Abstract: A garden shears has a handle, a first cutting member, a handgrip, a second cutting member, an intermediate member and at least one driving member. The handle secures the first cutting member and is pivoted to the second cutting member by the second shaft hole, the handgrip secures the intermediate member, the third shaft hole is pivoted to the first shaft hole, the first end of the driving member is connected to the second connecting aperture of the intermediate member, the second end is connected to the first connecting aperture of the second cutting member, therefore, the first shaft hole, the second shaft hole, the first end and the second end form a four-bar linkage state. In addition, the evading groove of the handle is configured for accepting the second end, thereby the expanded swing range increases the maximum opening angle of the blade and the knife anvil.
    Type: Application
    Filed: September 2, 2020
    Publication date: March 3, 2022
    Inventor: Yao-Chung Huang
  • Publication number: 20220053704
    Abstract: A garden shears has a first blade member, a second blade member, a controlling handle and a protecting member. The first blade member has a first cutting portion, a first aperture at a middle section, a first toothed section adjacent to the first aperture and below the first cutting portion. The second blade member has a second cutting portion, a second aperture at a middle section, a third aperture at a lower end. The controlling handle has a driving member with a fourth aperture and the second toothed section on a top edge at an upper section. The protecting member has a main body with two opposing ear portions, each ear portion having a fifth aperture and a sixth aperture.
    Type: Application
    Filed: August 19, 2020
    Publication date: February 24, 2022
    Inventor: Yao-Chung Huang
  • Publication number: 20200338713
    Abstract: A gardening tool may include an outer tube, at least a middle tube, and an inner tube which are sleeved and connected in sequence. Each of a first end of the outer tube and a first end of the middle tube is connected to a pressing member, and through the pressing members, the middle tube and the inner tube are adapted to be firmly positioned after the middle tube is pulled out from the outer tube and the inner tube is pulled out from the middle tube to adjust the length of the gardening tool.
    Type: Application
    Filed: April 29, 2019
    Publication date: October 29, 2020
    Applicant: HO CHENG GARDEN TOOLS CO., LTD.
    Inventor: Yao-Chung Huang
  • Publication number: 20190069494
    Abstract: A foldable gardening shear may comprise a main body, a pair of handles, and a pair of pivot members. Each of the pivot members has a control unit, a knob, a screw and a pair of covers. The main body comprises a first pivot pin pivotally connect to a pair of cutting members at a middle portion of the main body. Each of the cutting members has a blade formed at an upper portion thereof, and the two blades are configured to couple together to achieve the cutting effect. The present invention is advantageous because the handles can be folded upwardly, which enables the gardening shear to be carried and stored easily; and in the folded position, the handles are respectively located at two lateral sides of the cutting members, which can prevent the blades from hurting the user.
    Type: Application
    Filed: September 7, 2017
    Publication date: March 7, 2019
    Applicant: HO CHENG GARDEN TOOLS CO., LTD.
    Inventor: Yao-Chung Huang
  • Patent number: 10201131
    Abstract: A foldable gardening shear may comprise a main body, a pair of handles, and a pair of pivot members. Each of the pivot members has a control unit, a knob, a screw and a pair of covers. The main body comprises a first pivot pin pivotally connect to a pair of cutting members at a middle portion of the main body. Each of the cutting members has a blade formed at an upper portion thereof, and the two blades are configured to couple together to achieve the cutting effect. The present invention is advantageous because the handles can be folded upwardly, which enables the gardening shear to be carried and stored easily; and in the folded position, the handles are respectively located at two lateral sides of the cutting members, which can prevent the blades from hurting the user.
    Type: Grant
    Filed: September 7, 2017
    Date of Patent: February 12, 2019
    Assignee: Ho Cheng Garden Tools Co. Ltd.
    Inventor: Yao-Chung Huang
  • Publication number: 20190021234
    Abstract: A pair of gardening shears include a first driving arm, a jaw member pivotally connected with the first driving arm, a second driving arm pivotally connected with the first driving arm, a first handle mounted on the first driving arm, a second handle mounted on the second driving arm, and a locking unit mounted on the first handle. Thus, the jaw member is pivotally connected with the first driving arm by the first bolt, and the second driving arm is pivotally connected with the first driving arm by the second bolt, so that the jaw member and the second driving arm have different fulcrums to construct a multi-lever structure so as to perform the cutting action smoothly in an energy-saving way.
    Type: Application
    Filed: July 21, 2017
    Publication date: January 24, 2019
    Inventor: Yao-Chung Huang
  • Patent number: 10182530
    Abstract: A pair of gardening shears include a first driving arm, a jaw member pivotally connected with the first driving arm, a second driving arm pivotally connected with the first driving arm, a first handle mounted on the first driving arm, a second handle mounted on the second driving arm, and a locking unit mounted on the first handle. Thus, the jaw member is pivotally connected with the first driving arm by the first bolt, and the second driving arm is pivotally connected with the first driving arm by the second bolt, so that the jaw member and the second driving arm have different fulcrums to construct a multi-lever structure so as to perform the cutting action smoothly in an energy-saving way.
    Type: Grant
    Filed: July 21, 2017
    Date of Patent: January 22, 2019
    Assignee: Ho Cheng Garden Tools Co., Ltd.
    Inventor: Yao-Chung Huang
  • Patent number: 9003667
    Abstract: A pair of garden scissors with an adjustable cutting angle is provided with first and second scissor members. A positioning protrusion of the first scissor member cooperates with a positioning end of the angle-restricting member of the second scissor member to restrict the maximum cutting angle of the first scissor member, and an adjust member is able to adjust the cutting angle by adjusting the position of the angle-restricting member, so that the cutting angle can be freely adjusted within the movement range of the angle-restricting member.
    Type: Grant
    Filed: January 18, 2013
    Date of Patent: April 14, 2015
    Assignee: Ho Cheng Garden Tools Co., Ltd.
    Inventor: Yao-Chung Huang
  • Publication number: 20140202007
    Abstract: A pair of garden scissors with an adjustable cutting angle is provided with first and second scissor members. A positioning protrusion of the first scissor member cooperates with a positioning end of the angle-restricting member of the second scissor member to restrict the maximum cutting angle of the first scissor member, and an adjust member is able to adjust the cutting angle by adjusting the position of the angle-restricting member, so that the cutting angle can be freely adjusted within the movement range of the angle-restricting member.
    Type: Application
    Filed: January 18, 2013
    Publication date: July 24, 2014
    Applicant: HO CHENG GARDEN TOOLS CO., LTD.
    Inventor: YAO-CHUNG HUANG
  • Patent number: 8661691
    Abstract: Garden shears includes two corresponding cutting members, two opposing applying arms and two assembling members. Each cutting member has a main pivot aperture at a middle section thereof, a blade portion above the main pivot aperture, a pushing arc and a sliding arc continuously disposed below the main pivot aperture and a protrusion disposed between the pushing arc and the sliding arc, and an adjustable slot at a lower section. Each applying arm has a driving pivot aperture at a middle section, an eccentric pivot aperture at a top section, a rotation portion corresponding to the sliding arc formed at a top edge, a pushing edge formed at a side of the rotation portion, an indentation formed between the rotation portion and the pushing edge, and a handle at a lower section; wherein the assembling member is a flat member and has at least one securing aperture.
    Type: Grant
    Filed: January 20, 2011
    Date of Patent: March 4, 2014
    Assignee: Ho Cheng Garden Tools Co., Ltd.
    Inventor: Yao-Chung Huang
  • Publication number: 20140053413
    Abstract: A garden shears has a main cutting body, a secondary cutting body and an applying arm. The main cutting body has a first shaft aperture at a middle section, a first blade disposed at one end aperture and a handle disposed on another end, the main cutting body has a first pivoting aperture between the first shaft aperture and the handle. The secondary cutting body has a second shaft aperture. A second blade is disposed at one end of the second shaft aperture and a sliding slot with a toothed portion at another end. The applying arm is pivoted with a gear at a middle section. The gear engages with the toothed portion of the sliding slot of the secondary cutting body, and the applying arm has a second pivoting aperture disposed at one end of the gear and a handle disposed at another end.
    Type: Application
    Filed: August 23, 2012
    Publication date: February 27, 2014
    Applicant: HO CHENG GARDEN TOOLS CO., LTD.
    Inventor: Yao-Chung Huang
  • Patent number: 8601698
    Abstract: Garden shears that avoid loosening of a shaft pin has shears having overlapped first and second cutting members, the first cutting member and second cutting member respectively connected to a first handle and a second handle. The first and second cutting members are secured with the shaft set. The shaft set has a threaded shaft pin, a washer, a threaded securing member and at least two engaging members. when the shears are assembled with the shaft set, the threaded securing member respectively has one engaging member on each side, and the engaging teeth of the threaded securing member engage with the two engaging members to prevent the threaded securing member from loosening due to the repeated opening and closing movements of the shears, and which can improve the smoothness of the operation of the shears and increase both safety and convenience.
    Type: Grant
    Filed: February 8, 2011
    Date of Patent: December 10, 2013
    Assignee: Ho Cheng Garden Tools Co., Ltd.
    Inventor: Yao-Chung Huang
  • Patent number: 8590165
    Abstract: An extended reach garden shears includes a shear rod, a driven arm, an operating arm and a connecting piece. The shear rod has a fixed cutter base on one end. The fixed cutter base is formed with a hooked cutting edge. The fixed cutter blade is provided with a primary shaft hole and a secondary shaft hole. A driven arm is provided with a rotation hole and is pivotally connected to the primary shaft hole of the fixed cutter base. The driven arm is formed with a cutting blade to match the hooked cutting edge. The bottom end of the cutting blade extends to form a connecting portion. The distal end of the connecting portion is bent to form a driven rack. The operating arm is provided with a pivotal hole. The pivotal hole is pivotally connected to the secondary shaft hole of the fixed cutter base. The operating arm is formed with an operating rack adjacent to the pivotal hole. The operating rack is drivingly engaged with the driven rack.
    Type: Grant
    Filed: November 30, 2010
    Date of Patent: November 26, 2013
    Assignee: Ho Cheng Garden Tools Co., Ltd.
    Inventor: Yao-Chung Huang
  • Patent number: 8584368
    Abstract: A position restriction structure of scissors includes a main body, a second body, a driving handle, a connecting piece, a restricting piece and a plurality of hinged units, wherein a main hinge hole and a second hinge hole provided for the second body and the driving handle are through and passing through a center portion of the main body, and the second body and the driving handle have a gearing teeth portion and a activating teeth portion engaged with each other. The restricting piece attaches to one side of the second body and driving handle and the hinge unit passes therethrough. The restricting piece clamps the second body and the driving handle through a screw and screw nut of the hinge unit to restrict axial position of the gearing teeth portion and activating teeth portion to prevent the second body from shear forces and to improve durability of the product.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: November 19, 2013
    Assignee: Ho Cheng Garden Tool Co. Ltd.
    Inventor: Yao-Chung Huang
  • Patent number: 8572853
    Abstract: A garden shears has a first shear, a second shear and two joined pressing arms. The first shear has a handle portion, and a positioned first pivot hole and an first eccentric pivot hole. The second shear has an elliptical second pivot hole, and a sidewall of the second pivot hole has a limiting surface. A sliding slot is disposed on the second shear, and a limiting indentation is disposed along an outer sidewall between the second pivot hole and the sliding slot, with a second cutting portion extending from an upper section of the second shear. The two joined pressing arms respectively have a connecting rod at a lower section and an Z-shaped upper section; an elliptical engaging pivot hole is disposed on each arm, and a third pivot hole is disposed at the upper section and used to be engaged with a first spacer.
    Type: Grant
    Filed: December 16, 2010
    Date of Patent: November 5, 2013
    Assignee: Ho Cheng Garden Tools Co., Ltd.
    Inventor: Yao-Chung Huang
  • Publication number: 20130152404
    Abstract: A position restriction structure of scissors includes a main body, a second body, a driving handle, a connecting piece, a restricting piece and a plurality of hinged units, wherein a main hinge hole and a second hinge hole provided for the second body and the driving handle are through and passing through a center portion of the main body, and the second body and the driving handle have a gearing teeth portion and a activating teeth portion engaged with each other. The restricting piece attaches to one side of the second body and driving handle and the hinge unit passes therethrough. The restricting piece clamps the second body and the driving handle through a screw and screw nut of the hinge unit to restrict axial position of the gearing teeth portion and activating teeth portion to prevent the second body from shear forces and to improve durability of the product.
    Type: Application
    Filed: December 14, 2011
    Publication date: June 20, 2013
    Applicant: HO CHENG GARDEN TOOLS CO., LTD.
    Inventor: Yao-Chung Huang