Patents by Inventor Yin-Chu Lai

Yin-Chu Lai 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: 20230104423
    Abstract: A portable chopstick including two-piece square chopsticks is provided. The two-piece square chopsticks include an upper chopstick body, a lower chopstick body and a chopstick body aligning structure. The upper chopstick body has a lower end joint block; the lower chopstick body has an opposite upper end joint groove. The chopstick body aligning structure can be separated into two parts, which are precisely positioned in the upper chopstick body and the lower chopstick bod respectively, wherein the upper chopstick body and the lower chopstick body can be made of different materials. When the lower end joint block of the upper chopstick body is locked with the upper end joint groove of the lower chopstick body, the upper chopstick body is aligned with the lower chopstick body through the chopstick body aligning structure at their four sides.
    Type: Application
    Filed: October 5, 2022
    Publication date: April 6, 2023
    Inventor: Yin-Chu LAI
  • Patent number: 11412872
    Abstract: The reinforced structure of the composite chopsticks of the present invention is fixed in a gripping portion and a clamping portion, and mainly comprises a first tubular member, a filling portion and a second tubular member. The first tubular member is positioned in the clamping portion and has at least one first open slot; the filling portion fills in the interior of the clamping portion and the first open slot to fix the first tubular member; and the second tubular member is fixed in the interior of the gripping portion and is formed by extending one end of the first tubular member. In this way, the reinforced structure can be effectively positioned during the molding process, and the bonding force between the heterogeneous materials can be increased to enhance the strength of the clamping portion, so as to improve the product quality and to prolong the service life.
    Type: Grant
    Filed: February 23, 2021
    Date of Patent: August 16, 2022
    Inventor: Yin-Chu Lai
  • Publication number: 20210259444
    Abstract: The reinforced structure of the composite chopsticks of the present invention is fixed in a gripping portion and a clamping portion, and mainly comprises a first tubular member, a filling portion and a second tubular member. The first tubular member is positioned in the clamping portion and has at least one first open slot; the filling portion fills in the interior of the clamping portion and the first open slot to fix the first tubular member; and the second tubular member is fixed in the interior of the gripping portion and is formed by extending one end of the first tubular member. In this way, the reinforced structure can be effectively positioned during the molding process, and the bonding force between the heterogeneous materials can be increased to enhance the strength of the clamping portion, so as to improve the product quality and to prolong the service life.
    Type: Application
    Filed: February 23, 2021
    Publication date: August 26, 2021
    Inventor: Yin-Chu LAI
  • Patent number: 7390247
    Abstract: A chopsticks structure, comprises a holding part and a clipping part, wherein the outer peripheral surface of said clipping part raises outwardly toward the tail end to form an elevation angle preferably in the range of 3-10 degree, such that, during clipping foods, the fulcrum of the holding force can be increased so as to favor the clipping of the food. Further, when said clipping part is configured as a tetragonal column, the contact between said clipping part and the food can be a linear or facial contact, such that the user can clip and hold securely food having smooth surface.
    Type: Grant
    Filed: September 23, 2005
    Date of Patent: June 24, 2008
    Inventor: Yin-Chu Lai
  • Publication number: 20070080552
    Abstract: A chopsticks structure, comprises a holding part and a clipping part, wherein the outer peripheral surface of said clipping part raises outwardly toward the tail end to form an elevation angle preferably in the range of 3-10 degree, such that, during clipping foods, the fulcrum of the holding force can be increased so as to favor the clipping of the food. Further, when said clipping part is configured as a tetragonal column, the contact between said clipping part and the food can be a linear or facial contact, such that the user can clip and hold securely food having smooth surface.
    Type: Application
    Filed: September 23, 2005
    Publication date: April 12, 2007
    Inventor: Yin-Chu Lai
  • Publication number: 20050229406
    Abstract: A piece of composite tableware and a method of manufacturing the same, the tableware comprises a main part of an utensil and a handle, the method is characterized by: the main part including a utility portion and a handle-connecting portion is integrally shaped, an opening is provided on an outer end of the handle-connecting portion, a fixing hole is provided at the opening; the handle is formed by injection shaping, extruding and melting, and is tightly connected to the interior of the handle-connecting portion through the opening to tightly connect with the main part. Integrally shaping the tableware makes cleansing the connecting areas become easier, and injection shaping to connect the main part and the handle increases the connecting strength. In addition, hollow barrel structure reduces the cost. The method is applicable to manufacturing of spoons, forks and bottle cap openers etc.
    Type: Application
    Filed: April 16, 2004
    Publication date: October 20, 2005
    Inventor: Yin-Chu Lai
  • Publication number: 20030160467
    Abstract: A structure of any of a pair of stainless steel composite chopsticks, the chopstick is comprised of a main body and a stainless steel metallic sleeve portion combined with each other in injection molding. The chopstick is characterized by: the sleeve portion has a flared opening in connecting with the main body, the opening is located nearly at the middle of the length of the chopstick to be formed, and is provided on the periphery thereof with at least one hole for combination during fabricating the main body by injection molding. The main body can be given a particular pattern; thereby, the two kinds of materials for the chopstick can be firmly combined with each other against dropping, and hardness of the chopstick can be increased. The main body can be more beautiful by providing the particular pattern and the sleeve portion.
    Type: Application
    Filed: February 27, 2002
    Publication date: August 28, 2003
    Inventor: Yin-Chu Lai
  • Patent number: 6607225
    Abstract: A structure of any of a pair of stainless steel composite chopsticks, the chopstick is comprised of a main body and a stainless steel metallic sleeve portion combined with each other in injection molding. The chopstick is characterized by: the sleeve portion has a flared opening in connecting with the main body, the opening is located nearly at the middle of the length of the chopstick to be formed, and is provided on the periphery thereof with at least one hole for combination during fabricating the main body by injection molding. The main body can be given a particular pattern; thereby, the two kinds of materials for the chopstick can be firmly combined with each other, and the hardness of the chopstick can be increased. The main body can be, more beautiful by providing the particular pattern and the sleeve portion.
    Type: Grant
    Filed: February 27, 2002
    Date of Patent: August 19, 2003
    Inventor: Yin-Chu Lai
  • Publication number: 20020096896
    Abstract: A combined type stainless steel chopstick formed by at least two materials is disclosed. The chopstick is formed by tightly combining a holding body with a stainless steel cover, and a front section of the stainless steel cover has a textured surface. The cleaning work is easy, and the cambered edge causes no residue left on the chopstick. Moreover, the defect of generating bacterial on the chopstick as that in the prior art chopstick is improved. The chopstick is made of at least two materials so that the holding sense is preferred, further, since the clamping portion has a textured surface, the clamping effect is good.
    Type: Application
    Filed: January 19, 2001
    Publication date: July 25, 2002
    Inventor: Yin-Chu Lai
  • Patent number: 6408524
    Abstract: Tableware grip structure with comfortable touch feeling including a grip and a fitting body. A front end of the grip is disposed with a fitting section formed with a fitting slot at front end for fitting with a tableware. The grip is formed with multiple arch bulge sections and multiple recessed sections which are interlaced with each other. Each recessed section is formed with at least one through hole. The fitting body is correspondingly fixedly fitted on the recessed sections of the grip. The outer circumferences of the bulge sections and the fitting body together form a waved face for a user's hand to more snugly hold and more conveniently turn the grip and achieve a more comfortable touching feeling.
    Type: Grant
    Filed: June 16, 2000
    Date of Patent: June 25, 2002
    Inventor: Yin-Chu Lai
  • Patent number: D438056
    Type: Grant
    Filed: April 14, 2000
    Date of Patent: February 27, 2001
    Inventor: Yin-Chu Lai
  • Patent number: D548019
    Type: Grant
    Filed: October 26, 2005
    Date of Patent: August 7, 2007
    Inventor: Yin-Chu Lai
  • Patent number: D398486
    Type: Grant
    Filed: September 25, 1997
    Date of Patent: September 22, 1998
    Inventor: Yin Chu Lai
  • Patent number: D408219
    Type: Grant
    Filed: June 4, 1998
    Date of Patent: April 20, 1999
    Inventor: Yin-Chu Lai
  • Patent number: D409452
    Type: Grant
    Filed: August 3, 1998
    Date of Patent: May 11, 1999
    Inventor: Yin-Chu Lai
  • Patent number: D409881
    Type: Grant
    Filed: August 3, 1998
    Date of Patent: May 18, 1999
    Inventor: Yin-Chu Lai
  • Patent number: D410362
    Type: Grant
    Filed: June 4, 1998
    Date of Patent: June 1, 1999
    Inventor: Yin-Chu Lai
  • Patent number: D412091
    Type: Grant
    Filed: August 3, 1998
    Date of Patent: July 20, 1999
    Inventor: Yin-Chu Lai
  • Patent number: D414073
    Type: Grant
    Filed: October 29, 1998
    Date of Patent: September 21, 1999
    Inventor: Yin-Chu Lai
  • Patent number: D419376
    Type: Grant
    Filed: March 17, 1999
    Date of Patent: January 25, 2000
    Inventor: Yin-Chu Lai