Patents by Inventor Chin Hua Lim

Chin Hua Lim 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: 20220271457
    Abstract: In a specific embodiment, a connector 100 is disclosed. The connector 100 comprises an insulative housing 102 defining a rear opening 108 for receiving a plurality of electrical wires 110 and a front opening 106 and a circuit board 104 disposed in the housing 102 and comprising a mating section 112 for mating with a corresponding mating section of a mating connector. The mating section 112 protrudes outwardly from the front opening 106 and terminates at a front edge 118 disposed between opposing side edges 114,116 of the mating section 112.
    Type: Application
    Filed: February 9, 2022
    Publication date: August 25, 2022
    Inventors: Kok Hoe Lee, Saujit Bandhu, YunLong Qiao, Rao L. Vittapalli, Chin Hua Lim
  • Patent number: 11276949
    Abstract: In a specific embodiment, a connector 100 is disclosed. The connector 100 comprises an insulative housing 102 defining a rear opening 108 for receiving a plurality of electrical wires 110 and a front opening 106 and a circuit board 104 disposed in the housing 102 and comprising a mating section 112 for mating with a corresponding mating section of a mating connector. The mating section 112 protrudes outwardly from the front opening 106 and terminates at a front edge 118 disposed between opposing side edges 114,116 of the mating section 112.
    Type: Grant
    Filed: April 14, 2020
    Date of Patent: March 15, 2022
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Kok Hoe Lee, Saujit Bandhu, Yunlong Qiao, Rao L. Vittapalli, Chin Hua Lim
  • Patent number: 11165208
    Abstract: An electrical contact includes a longitudinal first body portion, a longitudinal second body portion, a terminal portion, and a contact portion. The longitudinal first body portion has a terminal end, a first transition end opposite the terminal end, and a major surface generally lying in a first plane. The longitudinal second body portion has a contact end, a second transition end opposite the contact end, and a major surface generally lying in a second plane intersecting the first plane. The contact end is distal to the first transition end. The terminal portion extends from the first body portion at the terminal end. The contact portion extends from the second body portion at the contact end.
    Type: Grant
    Filed: September 24, 2012
    Date of Patent: November 2, 2021
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Chin Hua Lim, Saujit Bandhu, Alexander W. Barr
  • Publication number: 20210313718
    Abstract: A connector assembly includes a circuit board that includes conductive front pads conductive rear pads, a cable terminated at the rear pads, and a unitary front housing assembled to the front end the circuit board. The connector assembly also includes flexible contacts assembled to the unitary front housing. The front pads make contact with and deflect the flexible contacts away from the circuit board. The connector assembly also includes a conductive shield assembled to the unitary front housing, and a unitary rear housing tightly overmolded around at least the circuit board and portions of the unitary front housing, the cable, and the shield.
    Type: Application
    Filed: September 30, 2019
    Publication date: October 7, 2021
    Inventors: Chin Hua Lim, Kok Hoe Lee, Saujit Bandhu, YunLong Qiao, Rao L. Vittapalli
  • Publication number: 20210273357
    Abstract: A connector that is configured to mate with different mating connectors by virtue of having different removably assembled interchangeable front housing portions includes a rear housing portion that includes a plurality of rear contacts. When the connector is to mate with a particular mating connector, a particular front housing portion of the connector that corresponds to the particular mating connector is selected from a plurality of available different front housing portions. The particular front housing portion is removably assembled to the rear housing portion, so that a plurality of front contacts of the particular front housing portion makes solderless physical and electrical contact with the plurality of rear contacts of the rear housing portion. The plurality of front contacts of the front housing portion are adapted to mate with corresponding contacts of the particular mating connector.
    Type: Application
    Filed: June 17, 2019
    Publication date: September 2, 2021
    Inventors: KokHoe Lee, Saujit Bandhu, Rao L. Vittapalli, Chin Hua Lim, YunLong Qiao
  • Publication number: 20200266591
    Abstract: Electrical connectors are described. More particularly, electrical connectors including a plurality of contacts are described. Both connector plugs and sockets are described. Electrical connectors that are suitable for mounting on a printed circuit board and electrical connectors that include a printed circuit board are described.
    Type: Application
    Filed: May 5, 2020
    Publication date: August 20, 2020
    Inventors: YunLong Qiao, Rao L. Vittapalli, Saujit Bandhu, Vincent Tan, Kok Hoe Lee, Chin Hua Lim
  • Publication number: 20200243993
    Abstract: In a specific embodiment, a connector 100 is disclosed. The connector 100 comprises an insulative housing 102 defining a rear opening 108 for receiving a plurality of electrical wires 110 and a front opening 106 and a circuit board 104 disposed in the housing 102 and comprising a mating section 112 for mating with a corresponding mating section of a mating connector. The mating section 112 protrudes outwardly from the front opening 106 and terminates at a front edge 118 disposed between opposing side edges 114,116 of the mating section 112.
    Type: Application
    Filed: April 14, 2020
    Publication date: July 30, 2020
    Inventors: Kok Hoe Lee, Saujit Bandhu, YunLong Qiao, Rao L. Vittapalli, Chin Hua Lim
  • Patent number: 10727620
    Abstract: A connector assembly includes first and second connectors. Each connector includes a plurality of terminals A1 through An, n is an integer ?2, sequentially arranged in a row. The connector assembly also includes a flat cable that includes a plurality of electrical conductors electrically connecting the terminals of the first and second connectors. For each i from 1 to n, terminal Ai of the first connector is electrically connected, via a different electrical conductor of the cable, to the terminal Ai of the second connector. The cable includes a bend greater than about 150° around at least two fold lines that extend across the entire width of the cable. Each of the first and second connectors is configured to mate with the same mating connector, such that when each of the first and second connectors mates with the same mating connector in a same plan view, the An terminals are both either on a left or a right side of the A1 terminals.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: July 28, 2020
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Rao L. Vittapalli, Kok Hoe Lee, YunLong Qiao, Chin Hua Lim, Saujit Bandhu
  • Patent number: 10673188
    Abstract: Electrical connectors are described. More particularly, electrical connectors including a plurality of contacts are described. Both connector plugs and sockets are described. Electrical connectors that are suitable for mounting on a printed circuit board and electrical connectors that include a printed circuit board are described.
    Type: Grant
    Filed: October 8, 2018
    Date of Patent: June 2, 2020
    Assignee: 3M Innovative Properties Company
    Inventors: YunLong Qiao, Rao L. Vittapalli, Saujit Bandhu, Vincent Tan, Kok Hoe Lee, Chin Hua Lim
  • Patent number: 10651582
    Abstract: In a specific embodiment, a connector 100 is disclosed. The connector 100 comprises an insulative housing 102 defining a rear opening 108 for receiving a plurality of electrical wires 110 and a front opening 106 and a circuit board 104 disposed in the housing 102 and comprising a mating section 112 for mating with a corresponding mating section of a mating connector. The mating section 112 protrudes outwardly from the front opening 106 and terminates at a front edge 118 disposed between opposing side edges 114,116 of the mating section 112.
    Type: Grant
    Filed: October 26, 2015
    Date of Patent: May 12, 2020
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Kok Hoe Lee, Saujit Bandhu, YunLong Qiao, Rao L. Vittapalli, Chin Hua Lim
  • Patent number: 10581189
    Abstract: The present invention relates to cable-to-board connectors for fine pitch, high speed connector assemblies. The exemplary connector assembly includes an insulative housing, a plurality of first contacts disposed in the housing wherein at least a portion of the contacts are adapted to terminate at a conductive trace on a printed circuit board and a first cable comprising a plurality of first wires. Each of the first contacts has a first mating portion for making electrical contact with a corresponding contact of a mating connector; and a first terminal portion extending along a housing bottom wherein the first terminal portion is adapted to terminate at a conductive trace on a printed circuit board. In the exemplary cable assembly, each first wire of the first cable is terminated at the first terminal portion of a different first contact.
    Type: Grant
    Filed: December 6, 2013
    Date of Patent: March 3, 2020
    Assignee: 3M Innovative Properties Company
    Inventors: YunLong Qiao, Saujit Bandhu, Chin Hua Lim
  • Publication number: 20190372249
    Abstract: An elongated connector includes a circuit board and a connector frame removably attached to the circuit board. First contact pads and second contact pads are integrally formed on a top surface and near a front edge of the circuit board. A first opening is disposed at the front edge of the circuit board on a side of a first region. A second opening is disposed at the front edge of the circuit board on an opposite side of a second region. The elongated base is disposed on the top surface of the circuit board behind the first and second regions. When the connector mates with a mating connector, the first and second regions of the circuit board are inserted in the mating connector and each contact pad in the pluralities of first and second contact pads makes contact with a corresponding contact of the mating connector.
    Type: Application
    Filed: December 18, 2017
    Publication date: December 5, 2019
    Inventors: YunLong Qiao, Saujit Bandhu, Kok Hoe Lee, Chin Hua Lim, Rao L. Vittapalli
  • Publication number: 20190288435
    Abstract: An electrically conductive contact of an electrical connector includes an L-shaped main body comprising first and second legs connected at a junction. The first leg is configured to make physical and electrical contact with a first electric conductor. The contact includes an elongated resiliently flexible arm extending from an end of the second leg toward the junction and making an acute angle with the second leg at the end of the second leg. The flexible arm is configured to make solderless contact with a second electric conductor by pressing against the second electric conductor and resiliently flexing toward the second leg.
    Type: Application
    Filed: December 18, 2017
    Publication date: September 19, 2019
    Inventors: Kok Hoe Lee, Saujit Bandhu, Chin Hua Lim, Rao L. Vittapalli, YunLong Qiao
  • Patent number: 10386589
    Abstract: The present invention relates to a hybrid connector. The connector comprises an insulating housing having parallel rows of first and second terminals disposed in the housing. Each first and second terminal includes a terminal portion configured to make contact with an electrically conductive trace of a circuit board; and a mating portion configured to contact a terminal of a mating connector, the mating portions of the first terminals parallel to and facing the mating portions of the second terminals. The housing defines a cavity formed therein between the mating portions of the first and second terminals, wherein the cavity defining a cavity opening at an external surface of the housing for receiving light therefrom. An optical relay portion is disposed in the cavity, wherein the optical relay portion comprises at least one of an optical transceiver, an optical lens and an optical waveguide.
    Type: Grant
    Filed: January 29, 2018
    Date of Patent: August 20, 2019
    Assignee: 3M Innovation Properties Company
    Inventors: Terry L. Smith, Saujit Bandhu, YunLong Qiao, Chin Hua Lim, Barry J. Koch
  • Publication number: 20190199021
    Abstract: A connector assembly includes first and second connectors. Each connector includes a plurality of terminals A1 through An, n is an integer?2, sequentially arranged in a row. The connector assembly also includes a flat cable that includes a plurality of electrical conductors electrically connecting the terminals of the first and second connectors. For each i from 1 to n, terminal Ai of the first connector is electrically connected, via a different electrical conductor of the cable, to the terminal Ai of the second connector. The cable includes a bend greater than about 150° around at least two fold lines that extend across the entire width of the cable. Each of the first and second connectors is configured to mate with the same mating connector, such that when each of the first and second connectors mates with the same mating connector in a same plan view, the An terminals are both either on a left or a right side of the A1 terminals.
    Type: Application
    Filed: November 29, 2018
    Publication date: June 27, 2019
    Inventors: Rao L. Vittapalli, Kok Hoe Lee, YunLong Qiao, Chin Hua Lim, Saujit Bandhu
  • Publication number: 20190052033
    Abstract: Electrical connectors are described. More particularly, electrical connectors including a plurality of contacts are described. Both connector plugs and sockets are described. Electrical connectors that are suitable for mounting on a printed circuit board and electrical connectors that include a printed circuit board are described.
    Type: Application
    Filed: October 8, 2018
    Publication date: February 14, 2019
    Inventors: YunLong Qiao, Rao L. Vittapalli, Saujit Bandhu, Vincent Tan, Kok Hoe Lee, Chin Hua Lim
  • Patent number: 10177492
    Abstract: An electrical connector is disclosed that includes an insulative housing having a mating face at one end, a rear face at another end, a mating slot at the mating face for receiving a complementary connector, a first set of contacts mounted in a first set of channels incorporated at a top of the insulative housing and a second set of contacts mounted in a second set of channels incorporated at a bottom of the insulative housing, and a shielding device located between the first set of contacts and the second set of contacts.
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: January 8, 2019
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Chin Hua Lim, Saujit Bandhu, Yew Meng Wu
  • Patent number: 10135206
    Abstract: Electrical connectors are described. More particularly, electrical connectors including a plurality of contacts are described. Both connector plugs and sockets are described. Electrical connectors that are suitable for mounting on a printed circuit board and electrical connectors that include a printed circuit board are described.
    Type: Grant
    Filed: June 1, 2015
    Date of Patent: November 20, 2018
    Assignee: 3M Innovative Properties Company
    Inventors: YunLong Qiao, Rao L. Vittapalli, Saujit Bandhu, Vincent Tan, Kok Hoe Lee, Chin Hua Lim
  • Publication number: 20180217341
    Abstract: The present invention relates to a hybrid connector. The connector comprises an insulating housing having parallel rows of first and second terminals disposed in the housing. Each first and second terminal includes a terminal portion configured to make contact with an electrically conductive trace of a circuit board; and a mating portion configured to contact a terminal of a mating connector, the mating portions of the first terminals parallel to and facing the mating portions of the second terminals. The housing defines a cavity formed therein between the mating portions of the first and second terminals, wherein the cavity defining a cavity opening at an external surface of the housing for receiving light therefrom. An optical relay portion is disposed in the cavity, wherein the optical relay portion comprises at least one of an optical transceiver, an optical lens and an optical waveguide.
    Type: Application
    Filed: January 29, 2018
    Publication date: August 2, 2018
    Inventors: Terry L. Smith, Saujit Bandhu, YunLong Qiao, Chin Hua Lim, Barry J. Koch
  • Publication number: 20180069344
    Abstract: An electrical connector is disclosed that includes an insulative housing having a mating face at one end, a rear face at another end, a mating slot at the mating face for receiving a complementary connector, a first set of contacts mounted in a first set of channels incorporated at a top of the insulative housing and a second set of contacts mounted in a second set of channels incorporated at a bottom of the insulative housing, and a shielding device located between the first set of contacts and the second set of contacts.
    Type: Application
    Filed: November 14, 2017
    Publication date: March 8, 2018
    Inventors: Chin Hua Lim, Saujit Bandhu, Yew Meng Wu