Patents by Inventor Saujit Bandhu

Saujit Bandhu 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).

  • Patent number: 9647383
    Abstract: Connector assemblies are disclosed. More particularly, connector assemblies including a housing with an inclined wall are disclosed. The inclined wall helps maintain a folded flat cable by contacting substantially its entire fold edge. The housing with the inclined wall may be removably attached to the rest of the connector assembly.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: May 9, 2017
    Assignee: 3M Innovative Properties Company
    Inventors: Kok Hoe Lee, Saujit Bandhu, Dennis L. Doye, YunLong Qiao
  • Publication number: 20170085042
    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: June 1, 2015
    Publication date: March 23, 2017
    Inventors: YunLong Qiao, Rao L. Vittapalli, Saujit Bandhu, Vincent Tan, Kok Hoe Lee, Chin Hua Lim
  • Patent number: 9595787
    Abstract: An electrical cable connector includes a cable connector housing and a latch attached to the cable connector housing. The cable connector housing includes a first set of electrical contacts and a latch channel. The latch includes an arm portion, a hinge portion, and an actuation portion. The arm portion is disposed in the latch channel and includes a pair of latch arms. The latch arms include opposing catch portions disposed at a front end thereof and are adapted to securely attach the cable connector to a mating connector by surrounding a protrusion inside a housing of the mating connector. The hinge portion extends from a back end of the arm portion. The actuation portion extends generally upwardly from the hinge portion. Pressing down the actuation portion about the hinge portion splays the latch arms such that the catch portions are moved away from each other.
    Type: Grant
    Filed: November 5, 2012
    Date of Patent: March 14, 2017
    Assignee: 3M Innovative Properties Company
    Inventors: YunLong Qiao, Saujit Bandhu
  • Publication number: 20170064881
    Abstract: An electrically conductive gasket for use with an electrical component, including an electrically conductive base defining a central opening therein for receiving a portion of an electrical component, a first row of spaced apart resilient conductive tabs arranged around the central opening, and a second row of spaced apart resilient conductive tabs arranged around the central opening, the first row being located inside the second row. The conductive tabs in the first and second rows of the spaced apart resilient conductive tabs extend outwardly from the conductive base and are configured to resiliently deflect when the gasket is compressed. The conductive tabs in the first and second rows of the spaced apart resilient conductive tabs are staggered relative to each other, such that in an edge view of the gasket, at least one conductive tab in one row partially overlaps at least one conductive tab in the other row.
    Type: Application
    Filed: November 16, 2016
    Publication date: March 2, 2017
    Inventors: Saujit Bandhu, YunLong Qiao
  • Patent number: 9553394
    Abstract: A connector assembly includes a housing, a plurality of circuit board cable assemblies, and an overmold. Each of the circuit board cable assemblies includes a printed circuit board and a pair of shielded cables. The overmold extends and insulate a portion of the shielded cables and a portion of the printed circuit board that includes a plurality of conductive contact pads for electrical connection to the shielded cables.
    Type: Grant
    Filed: December 2, 2013
    Date of Patent: January 24, 2017
    Assignee: 3M Innovative Properties Company
    Inventors: Kok Hoe Lee, Saujit Bandhu
  • Publication number: 20170012385
    Abstract: Connector assemblies are disclosed. More particularly, connector assemblies including a housing with an inclined wall are disclosed. The inclined wall helps maintain a folded flat cable by contacting substantially its entire fold edge. The housing with the inclined wall may be removably attached to the rest of the connector assembly.
    Type: Application
    Filed: December 22, 2014
    Publication date: January 12, 2017
    Inventors: Kok Hoe LEE, Saujit BANDHU, Dennis L. DOYE, YunLong QIAO
  • Patent number: 9532490
    Abstract: An electrically conductive gasket for use with an electrical component, including an electrically conductive base defining a central opening therein for receiving a portion of an electrical component, a first row of spaced apart resilient conductive tabs arranged around the central opening, and a second row of spaced apart resilient conductive tabs arranged around the central opening, the first row being located inside the second row. The conductive tabs in the first and second rows of the spaced apart resilient conductive tabs extend outwardly from the conductive base and are configured to resiliently deflect when the gasket is compressed. The conductive tabs in the first and second rows of the spaced apart resilient conductive tabs are staggered relative to each other, such that in an edge view of the gasket, at least one conductive tab in one row partially overlaps at least one conductive tab in the other row.
    Type: Grant
    Filed: July 21, 2014
    Date of Patent: December 27, 2016
    Assignee: 3M Innovative Properties Company
    Inventors: Saujit Bandhu, YunLong Qiao
  • Publication number: 20160276062
    Abstract: A shielded electrical cable (50) includes conductor sets (51a, 51b) spaced apart along a width of the cable and extending along a length of the cable. Each conductor set includes first and second insulated conductors (52a, 52b), one or two drain grounding wires (54) disposed between the first and second insulated conductors, first and second conductive shielding films (56a, 56b) disposed on opposite first and second sides of the conductor set, and an adhesive layer (59) bonding the first shielding film to the second shielding film.
    Type: Application
    Filed: November 24, 2014
    Publication date: September 22, 2016
    Inventors: David L. Kordecki, Douglas B. Gundel, Saujit Bandhu
  • Patent number: 9426888
    Abstract: A substrate comprises a first plurality of conductive pads disposed on a first side of the substrate and a different second plurality of conductive pads disposed on the first side of the substrate. Each conductive pad in the first plurality of conductive pads is configured to make electrical contact with a corresponding contact of a MicroSAS plug connector when the MicroSAS plug connector is mounted onto the substrate. Each conductive pad in the second plurality of conductive pads is configured to make electrical contact with a corresponding contact of a MicroSATA plug connector when the MicroSATA plug connector is mounted onto the substrate. At least one conductive pad belongs to both the first and second pluralities of conductive pads.
    Type: Grant
    Filed: January 8, 2014
    Date of Patent: August 23, 2016
    Assignee: 3M Innovative Properties Company
    Inventors: Saujit Bandhu, YunLong Qiao, Vincent Tan
  • Publication number: 20160164216
    Abstract: An electrical connector includes a unitary base elongated along a longitudinal direction. A first tongue extends forwardly from the base and has a uniform thickness along the longitudinal direction. The first tongue comprises a plurality of spaced apart first contacts. A second tongue extends forwardly from the base and comprises a plurality of spaced apart second contacts. The first and second tongues define a gap therebetween that extends from a front edge of one of the first and second tongues toward the unitary base.
    Type: Application
    Filed: July 21, 2014
    Publication date: June 9, 2016
    Inventors: Vincent Tan, Kok Hoe Lee, Rao Vittapalli, Yunlong Qiao, Saujit Bandhu
  • Publication number: 20160157393
    Abstract: An electrically conductive gasket for use with an electrical component, including an electrically conductive base defining a central opening therein for receiving a portion of an electrical component, a first row of spaced apart resilient conductive tabs arranged around the central opening, and a second row of spaced apart resilient conductive tabs arranged around the central opening, the first row being located inside the second row. The conductive tabs in the first and second rows of the spaced apart resilient conductive tabs extend outwardly from the conductive base and are configured to resiliently deflect when the gasket is compressed. The conductive tabs in the first and second rows of the spaced apart resilient conductive tabs are staggered relative to each other, such that in an edge view of the gasket, at least one conductive tab in one row partially overlaps at least one conductive tab in the other row.
    Type: Application
    Filed: July 21, 2014
    Publication date: June 2, 2016
    Inventors: Saujit Bandhu, Yunlong Qiao
  • Publication number: 20150319861
    Abstract: A substrate comprises a first plurality of conductive pads disposed on a first side of the substrate and a different second plurality of conductive pads disposed on the first side of the substrate. Each conductive pad in the first plurality of conductive pads is configured to make electrical contact with a corresponding contact of a MicroSAS plug connector when the MicroSAS plug connector is mounted onto the substrate. Each conductive pad in the second plurality of conductive pads is configured to make electrical contact with a corresponding contact of a MicroSATA plug connector when the MicroSATA plug connector is mounted onto the substrate. At least one conductive pad belongs to both the first and second pluralities of conductive pads.
    Type: Application
    Filed: January 8, 2014
    Publication date: November 5, 2015
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Saujit Bandhu, YunLong Qiao, Vincent Tan
  • Publication number: 20150318642
    Abstract: A connector assembly includes a housing, a plurality of circuit board cable assemblies, and an overmold. Each of the circuit board cable assemblies may include a printed circuit board and a pair of shielded cables. The overmold may extend and insulate a portion of the shielded cables and a portion of the printed circuit board that includes a plurality of conductive contact pads for electrical connection to the shielded cables.
    Type: Application
    Filed: December 2, 2013
    Publication date: November 5, 2015
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Kok Hoe Lee, Saujit Bandhu
  • Publication number: 20150311612
    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: Application
    Filed: December 6, 2013
    Publication date: October 29, 2015
    Inventors: YunLong Qiao, Saujit Bandhu, Chin Hua Lim
  • Patent number: 8911256
    Abstract: A gasket 102 for an Electromagnetic Interference (EMI) connector 100 comprising a first conductive part 104 including a plurality of spring tabs 108, a second conductive part 106 including a plurality of spring tabs 108, wherein the first conductive part 104 is configured to engage a first connector piece 110 and the second conductive part 106 is configured to engage a second connector piece 112, wherein the first conductive part is configured to engage the second conductive part when the first connector piece 110 is attached to the second connector piece 112, and wherein the spring tabs 108 are configured to electrically connect the connector 100 to an EMI shielding cage.
    Type: Grant
    Filed: November 17, 2011
    Date of Patent: December 16, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: YunLong Qiao, Saujit Bandhu
  • Publication number: 20140335727
    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: Application
    Filed: September 24, 2012
    Publication date: November 13, 2014
    Inventors: Chin Hua Lim, Saujit Bandhu, Alexander W. Barr
  • Publication number: 20140302694
    Abstract: An electrical cable connector includes a cable connector housing and a latch attached to the cable connector housing. The cable connector housing includes a first set of electrical contacts and a latch channel. The latch includes an arm portion, a hinge portion, and an actuation portion. The arm portion is disposed in the latch channel and includes a pair of latch arms. The latch arms include opposing catch portions disposed at a front end thereof and are adapted to securely attach the cable connector to a mating connector by surrounding a protrusion inside a housing of the mating connector. The hinge portion extends from a back end of the arm portion. The actuation portion extends generally upwardly from the hinge portion. Pressing down the actuation portion about the hinge portion splays the latch arms such that the catch portions are moved away from each other.
    Type: Application
    Filed: November 5, 2012
    Publication date: October 9, 2014
    Inventors: YunLong Qiao, Saujit Bandhu
  • Publication number: 20140227911
    Abstract: An electrical connector (100) is disclosed. In a described embodiment, the electrical connector (100) comprises first and second terminal pairs (102, 104) configured to electrically couple to a same device, each terminal pair (102, 104) comprising terminals (102a, 102b, 104a, 104b), with the terminals (102a, 102b) in the first terminal pair (102) having different first and second electrical lengths and the terminals (104a, 104b) in the second terminal pair (104) having different third and fourth electrical lengths, wherein a sum of the first and third electrical lengths is substantially the same as a sum of the second and fourth electrical lengths.
    Type: Application
    Filed: April 27, 2012
    Publication date: August 14, 2014
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Chin Hua Lim, Saujit Bandhu
  • Publication number: 20130344728
    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: August 12, 2013
    Publication date: December 26, 2013
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Chin Hua Lim, Saujit Bandhu, Yew Meng Wu
  • Publication number: 20130337700
    Abstract: In one embodiment of the present invention, there is provided an electrical connector comprising an insulative housing having a longitudinal base with a first side and a second side. Extending from the base at the first side is a tongue portion having a first tongue section and a second tongue section, both sections having a first face and a second face. A plurality of passageways are defined on the first faces of both sections. Each of the passageways has a recess located at one end and a plurality of conductive contacts are received in the passageways. Each contact comprises a mating section, a mounting section and a retainer section bridging the mating section to the mounting section whereby the mating section of the contact is free to flex into the recess. In another embodiment of the present invention, there is provided an electrical connector having a socket extending from the base at the second side.
    Type: Application
    Filed: August 20, 2013
    Publication date: December 19, 2013
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Chin Hua Lim, Saujit Bandhu