Patents by Inventor Ming Yeh

Ming Yeh 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: 20020075115
    Abstract: The transformer bobbin of the present invention includes a tubular body, a first partition wall, at least one second partition wall, at least one third partition wall and pins. The first partition wall is formed on the surface of the tubular body. The first partition wall includes a first flange having a thinner section for providing winding of a wire. The first partition wall separates a primary side from a secondary side. The second partition wall, parallel to the first partition wall, is formed on the surface of the tubular body. The second partition wall includes a second breach and a second flange having a second cut corner formed thereon. The third partition wall, interposed between the adjacent second partition walls, includes a third breach and a third flange having a third cut corner formed thereon. There is a horizontal height difference exists between the second cut corner and the third cut corner.
    Type: Application
    Filed: September 26, 2001
    Publication date: June 20, 2002
    Inventors: Ming Yeh, Heng Cheng Chou, Chen-Feng Wu, Jen Chieh Huang
  • Publication number: 20020075120
    Abstract: An embedded transformer embedded in a board is disclosed. The embedded transformer includes a board, a first insulating sheet, a preformed coil, a second insulating sheet, a first core and a second core. Among these, the board includes a conductive pattern formed on an upper surface of the board. A part of said conductive pattern serves as a primary coil of the embedded transformer. The first insulating sheet is formed on the conductive pattern. The preformed coil is formed on the first insulating sheet. The second insulating sheet is formed on the preformed coil. The first core is formed on the second insulating sheet and partially embedded in the board. The second core formed on a lower surface of the board is partially embedded in the board so as to be couple to the first core.
    Type: Application
    Filed: August 30, 2001
    Publication date: June 20, 2002
    Applicant: DELTA ELECTRONICS INC.
    Inventors: Ming Yeh, Heng Cheng Chou, Chen-Feng Wu, Hui-Hua Teng, Chien-Chia Lin
  • Publication number: 20020070832
    Abstract: A bobbin for a transformer is provided. The bobbin comprises a body, a first partition wall, a second partition wall, at least one third partition wall, and two first pins. The first partition wall, having a first protrusion, is formed on the body. The body is divided into a primary side and a secondary side by the first partition wall. The second partition wall, having a second protrusion with a thinner section, is formed on the secondary side of the body. The third partition wall, having a third protrusion with a notch, is formed on the secondary side of the body so that the third partition wall is close to the second partition wall and away from the first partition wall. The first pins are disposed on the secondary side of the body in a substantially U-shape.
    Type: Application
    Filed: December 3, 2001
    Publication date: June 13, 2002
    Inventors: Ming Yeh, Heng Cheng Chou, Chen-Feng Wu, Chien-Chia Lin
  • Patent number: 6404320
    Abstract: Disclosed is a method for adjusting the inductance of an inductor at least including a bobbin, a first magnetic member having a concavity on a side wall thereof, and a second magnetic member having a protrusion at a first end thereof for preventing the second magnetic member from being completely inserted into the bobbin so as to form a gap between the first and second magnetic members. The method includes the steps of selecting a reference piece with a suitable thickness to be disposed between the protrusion of the second magnetic member and the side wall of the first magnetic member with the concavity and closely attached to both of them t as said second magnetic member is inserted into said bobbin, and partially removing the second magnetic member from a second end thereof according to the thickness of the reference piece so as to obtain a predetermined inductance value.
    Type: Grant
    Filed: January 30, 2001
    Date of Patent: June 11, 2002
    Assignee: Delta Electronics Inc.
    Inventors: Ming Yeh, Allen Chou, Chen-Feng Wu, Chien-Chia Lin
  • Publication number: 20020057168
    Abstract: The present invention discloses a base for transforming an inductor consisting of a core and a coil having two terminals into a surface mounted device. The present invention includes an insulating element, a substantially Z-shaped first conductive element and a substantially Z-shaped second conductive element. The first conductive element and the second conductive element further include a strip of first stem and a strip of second stem, respectively. The insulating element partially exposes lower surfaces of the first and second conductive elements and the first and second stems. The remaining portions of the first and second conductive elements are embedded in the insulating element. A terminal of the first conductive element extends toward the second conductive element and crosses a virtual cross-sectional line. Each of the terminals of the coil is wound around the respective recessed edge of the stems.
    Type: Application
    Filed: August 15, 2001
    Publication date: May 16, 2002
    Inventors: Ming Yeh, Heng Cheng Chou, Ying Teng Chang, Jen Chieh Huang
  • Publication number: 20020057167
    Abstract: A linear filter is disclosed including a metal core, a bobbin surrounded said metal core for spinning around electric lines to form coils thereon, a plurality of metal pins disposed on said bobbin for providing electrical signals to said coils, and a plug disposed between said metal core and said bobbin for filling a gap between said metal core and said bobbin to prevent said metal core from moving.
    Type: Application
    Filed: December 27, 2000
    Publication date: May 16, 2002
    Inventors: Ming Yeh, Allen Chou, Jau-Jen Du
  • Publication number: 20020050904
    Abstract: An ignition coil is provided. The ignition coil comprises a casing, a plurality of pins and a bobbin. The pins are disposed inside the casing. The bobbin, having a plurality of first terminals corresponding to the pins respectively, is disposed inside the casing. Each of the first terminals is provided with a ring-shaped portion in contact with the corresponding pin. Hence, resin, filled in the ignition coil, is prevented from leaking out of the casing.
    Type: Application
    Filed: October 30, 2001
    Publication date: May 2, 2002
    Inventors: Ming Yeh, Heng Cheng Chou, Chen-Feng Wu, Chien-Chia Lin
  • Publication number: 20020021202
    Abstract: Disclosed is a method for adjusting the inductance of an inductor at least including a bobbin, a first magnetic member having a concavity on a side wall thereof, and a second magnetic member having a protrusion at a first end thereof for preventing the second magnetic member from being completely inserted into the bobbin so as to form a gap between the first and second magnetic members. The method includes the steps of selecting a reference piece with a suitable thickness to be disposed between the protrusion of the second magnetic member and the side wall of the first magnetic member with the concavity and closely attached to both of them as said second magnetic member is inserted into said bobbin, and partially removing the second magnetic member from a second end thereof according to the thickness of the reference piece so as to obtain a predetermined inductance value.
    Type: Application
    Filed: January 30, 2001
    Publication date: February 21, 2002
    Inventors: Ming Yeh, Allen Chou, Chen-Feng Wu, Chien-Chia Lin
  • Patent number: 6326876
    Abstract: A bobbin for reeling thereon a plurality of threads and its producing method are provided. The bobbin includes a cylinder, a plurality of sleeves setting on the cylinder wherein the cylinder and the sleeves are made of different materials, and a plurality of pins inserting in the sleeves for holding the plurality of threads thereon.
    Type: Grant
    Filed: January 22, 1999
    Date of Patent: December 4, 2001
    Assignee: Delta Electronics Inc.
    Inventors: Ming Yeh, Allen Chou, Antony Du
  • Publication number: 20010037947
    Abstract: Methods of forming low molecular weight oligomers of aniline-based compounds are provided as well as methods of forming varied molecular weight oligomers and polymers that are aniline-based which are end-functionalized and capable of being reacted with other monomeric species to form a variety of copolymers. The oligomers, end-functionalized oligomers and copolymers exhibit corrosion-resistant properties and provide corrosion-resistant compounds for use on various substrates.
    Type: Application
    Filed: January 5, 2001
    Publication date: November 8, 2001
    Inventors: Yen Wei, Chuncai Yang, Tianzhong Ding, Xinru Jia, Danliang Jin, Jui-Ming Yeh, Jianguo Wang
  • Publication number: 20010034421
    Abstract: Methods of forming low molecular weight oligomers of aniline-based compounds are provided as well as methods of forming varied molecular weight oligomers and polymers that are aniline-based which are end-functionalized and capable of being reacted with other monomeric species to form a variety of copolymers. The oligomers, end-functionalized oligomers and copolymers exhibit corrosion-resistant properties and provide corrosion-resistant compounds for use on various substrates.
    Type: Application
    Filed: January 4, 2001
    Publication date: October 25, 2001
    Inventors: Yen Wei, Chuncai Yang, Tianzhong Ding, Xinru Jia, Danliang Jin, Jui-Ming Yeh, Jianguo Wang
  • Patent number: 6277304
    Abstract: Hybrid materials are formed having a homogeneous distribution of a conductive organic polymer or copolymer in an inorganic matrix. The conductive organic polymer may be electronically conductive, e.g., polyaniline, or may be ionically conductive, e.g., sulfonated polystyrene. The inorganic matrix is formed as a result of sol-gel chemistry, e.g., by the hydrolysis and condensation of tetraethyl orthosilicate and trialkoxysilyl groups in the organic polymers. A homogeneous distribution of organic polymer in the inorganic matrix is achieved by preparing separate solutions of organic polymer and sol-gel monomer, and then combining those solutions with a catalyst and stirring, to form a homogeneous clear solution. Upon evaporation of the solvent and other volatiles, a monolithic hybrid material may be formed. The combination of conductive organic polymer in an inorganic matrix provides desirable adhesion properties to an inorganic substrate while maintaining the conductivity of the organic polymer.
    Type: Grant
    Filed: May 22, 2000
    Date of Patent: August 21, 2001
    Assignee: Drexel University
    Inventors: Yen Wei, Jui-Ming Yeh, Wei Wang, Guang-Way Jang
  • Patent number: 6239251
    Abstract: Methods of forming low molecular weight oligomers of aniline-based compounds are provided as well as methods of forming varied molecular weight oligomers and polymers that are aniline-based which are end-functionalized and capable of being reacted with other monomeric species to form a variety of copolymers. The oligomers, end-functionalized oligomers and copolymers exhibit corrosion-resistant properties and provide corrosion-resistant compounds for use on various substrates.
    Type: Grant
    Filed: April 17, 1998
    Date of Patent: May 29, 2001
    Assignee: Drexel University
    Inventors: Yen Wei, Chuncai Yang, Tianzhong Ding, Xinru Jia, Danliang Jin, Jui-Ming Yeh, Jianguo Wang
  • Patent number: 6212733
    Abstract: A hub and wheel assembly enabling the moving direction of wheels of a vehicle to be adjusted instantly as the exerted pushing force changes direction comprises a wheel mount having wheels mounted thereon, and a swivel base assembly mounted on stroller leg. Wheel mount may quickly assemble with and detach from swivel base assembly. A protrusion of wheel mount, inserted into swivel base assembly, includes a circumferential groove having a cavity provided therein such that a spring-biased locking member may releasably engage with cavity for setting movement of wheels in a linear direction. Further, as a deflecting force is applied on the stroller locking member disengages with cavity for allowing wheels to move to left or right. Once the force is released, locking member will instantly return to its normal position to engage with cavity.
    Type: Grant
    Filed: August 16, 1999
    Date of Patent: April 10, 2001
    Assignee: Link Treasure Limited
    Inventor: Chuan-Ming Yeh
  • Patent number: 6066269
    Abstract: Hybrid materials are formed having a homogeneous distribution of a conductive organic polymer or copolymer in an inorganic matrix. The conductive organic polymer may be electronically conductive, e.g., polyaniline, or may be ionically conductive, e.g., sulfonated polystyrene. The inorganic matrix is formed as a result of sol-gel chemistry, e.g., by the hydrolysis and condensation of tetraethyl orthosilicate and trialkoxysilyl groups in the organic polymers. A homogeneous distribution of organic polymer in the inorganic matrix is achieved by preparing separate solutions of organic polymer and sol-gel monomer, and then combining those solutions with a catalyst and stirring, to form a homogeneous clear solution. Upon evaporation of the solvent and other volatiles, a monolithic hybrid material may be formed. The combination of conductive organic polymer in an inorganic matrix provides desirable adhesion properties to an inorganic substrate while maintaining the conductivity of the organic polymer.
    Type: Grant
    Filed: October 16, 1998
    Date of Patent: May 23, 2000
    Assignee: Drexel University
    Inventors: Yen Wei, Jui-Ming Yeh, Wei Wang, Guang-Way Jang
  • Patent number: 6008282
    Abstract: Styrene/acrylonitrile (SAN) resin compositions are provided having both improved room temperature impact properties as well as good weatherability. The compositions comprise a mixture of SAN resin, an elastomeric halogenated copolymer comprising a C.sub.2 to C.sub.12 monoolefin, e.g. isobutylene, and a ring-substituted alklstyrene, e.g., para-methylstyrene, and a compatibilizing agent such as zinc stearate.
    Type: Grant
    Filed: November 26, 1996
    Date of Patent: December 28, 1999
    Assignee: Exxon Chemical Patents, Inc.
    Inventors: Hsien-Chang Wang, Richard Cheng-Ming Yeh
  • Patent number: 5868966
    Abstract: Hybrid materials are formed having a homogeneous distribution of a conductive organic polymer or copolymer in an inorganic matrix. The conductive organic polymer may be electronically conductive, e.g., polyaniline, or may be ionically conductive, e.g., sulfonated polystyrene. The inorganic matrix is formed as a result of sol-gel chemistry, e.g., by the hydrolysis and condensation of tetraethyl orthosilicate and trialkoxysilyl groups in the organic polymers. A homogeneous distribution of organic polymer in the inorganic matrix is achieved by preparing separate solutions of organic polymer and sol-gel monomer, and then combining those solutions with a catalyst and stirring, to form a homogeneous clear solution. Upon evaporation of the solvent and other volatiles, a monolithic hybrid material may be formed. The combination of conductive organic polymer in an inorganic matrix provides desirable adhesion properties to an inorganic substrate while maintaining the conductivity of the organic polymer.
    Type: Grant
    Filed: August 22, 1996
    Date of Patent: February 9, 1999
    Assignee: Drexel University
    Inventors: Yen Wei, Jui-Ming Yeh, Wei Wang, Guang-Way Jang
  • Patent number: 5802575
    Abstract: A dual-ported tag array of a cache allows simultaneous access of the tag array by miss data of older LOAD instructions being returned during the same cycle that a new LOAD instruction is accessing the tag array to check for a cache hit. Because a load buffer queues LOAD instructions, the cache tags for older LOAD instructions which missed the cache return later when new LOAD instructions are accessing a tag array to check for cache hits. A method and apparatus for calculating and maintaining a hit bit in a load buffer perform the determination of whether or not a newly dispatched LOAD will hit the cache after it has been queued into the load buffer and waited for all older LOADs to be processed. A load buffer data entry includes the hit bit and all information necessary to process the LOAD instruction and calculate the hit bits for future LOAD instructions which must be buffered.
    Type: Grant
    Filed: October 7, 1997
    Date of Patent: September 1, 1998
    Assignee: Sun Microsystems, Inc.
    Inventors: Dale Greenley, Leslie Kohn, Ming Yeh, Greg Williams
  • Patent number: 5760670
    Abstract: The present invention relates to a tranformer core structure, which includes a rectangular frame core having two long sides and two short sides, with one short side having a recessed part and the other short side being closed to form a junction surface of magnetic path; and a strip core disposed in the rectangular frame core through the recessed part, and having a length similar to that of said long side of said rectangular frame core, but having a width slightly less than that of said recessed part, wherein adjustment of the inductance of the structure is accomplished by moving said strip core along said recessed part to adjust a gap between one end of said strip core and said junction surface of magnetic path.
    Type: Grant
    Filed: January 31, 1997
    Date of Patent: June 2, 1998
    Assignee: Delta Electronics, Inc.
    Inventors: Ming Yeh, Y. J. Chen, H. B. Chan, Antony Du, Albert Chang
  • Patent number: D452665
    Type: Grant
    Filed: March 13, 2000
    Date of Patent: January 1, 2002
    Assignee: Link Treasure Limited
    Inventors: Chuan-Ming Yeh, Cheng-Fan Yang, Youn-Fu You