Patents by Inventor Crispin Zulueta

Crispin Zulueta 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: 10181718
    Abstract: Provided herein are improved electrical circuit protection devices for protection against electrostatic discharge (ESD), the devices including a first support substrate, a first electrode and a second electrode formed on the first support substrate, wherein the first electrode and the second electrode are formed from a conductive material. The devices further include a first bonding pad disposed on the first and second electrode, the first bonding pad having a first cavity formed therein; a second support substrate disposed on the first bonding pad, the second support substrate having a second cavity formed therein, and a voltage variable material disposed within the first cavity and the second cavity and electrically connected to the first electrode and the second electrode. The devices further include a second bonding pad disposed on the second support substrate, and a third support substrate disposed on the second bonding pad.
    Type: Grant
    Filed: January 14, 2016
    Date of Patent: January 15, 2019
    Assignee: Littelfuse, Inc.
    Inventors: Conrado De Leon, Albert Enriquez, Editha Liquido, Crispin Zulueta
  • Publication number: 20170040134
    Abstract: An improved fuse including a fuse body formed of an electrically insulative material. The fuse body defines a cavity which extends from a first end of the fuse body to a second end of the fuse body. A fusible element is disposed within the cavity and extends from a first end face of the first end of the fuse body to a second end face of the second end of the fuse body. Insulated plugs are disposed within the cavity at the first and second ends of the fuse body wherein the plugs adhere to an interior surface of the fuse body and form seals that close the internal cavity. The fuse may further include end terminations that are applied to the ends of the fuse body in electrical contact with the fusible element.
    Type: Application
    Filed: October 21, 2016
    Publication date: February 9, 2017
    Applicant: Littelfuse, Inc.
    Inventors: Dennis Arce, Simon Burgos, Marlon Daza, Restituto Dumaran, Conrado de Leon, Merjaycel Marquinez, Dan Onken, Janus Pagharion, Roel Retardo, Bienvenido Salonga, Crispin Zulueta
  • Patent number: 9558905
    Abstract: An improved fuse including a fuse body formed of an electrically insulative material. The fuse body defines a cavity which extends from a first end of the fuse body to a second end of the fuse body. A fusible element is disposed within the cavity and extends from a first end face of the first end of the fuse body to a second end face of the second end of the fuse body. Insulated plugs are disposed within the cavity at the first and second ends of the fuse body wherein the plugs adhere to an interior surface of the fuse body and form seals that close the internal cavity. The fuse may further include end terminations that are applied to the ends of the fuse body in electrical contact with the fusible element.
    Type: Grant
    Filed: October 23, 2012
    Date of Patent: January 31, 2017
    Assignee: Littelfuse, Inc.
    Inventors: Dennis Arce, Simon Jude Burgos, Marlon Daza, Restituto Dumaran, Conrado de Leon, Merjaycel Marquinez, Dan Onken, Janus Pagharion, Roel Retardo, Bienvenido Salonga, Crispin Zulueta
  • Patent number: 9460882
    Abstract: A compact, high breaking capacity fuse that includes a top insulative layer, at least one intermediate insulative layer, and a bottom insulative layer arranged in a vertically stacked configuration. The at least one intermediate layer may have a hole formed therethrough that defines an air gap within the fuse. A first conductive terminal may be formed on a first end of the fuse and a second conductive terminal may be formed on a second end of the fuse. At least one fusible element may connect the first terminal to the second terminal, thus providing an electrically conductive pathway therebetween. A portion of the at least one fusible element may pass through the air gap defined by the hole in the at least one intermediate insulative layer.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: October 4, 2016
    Assignee: Littelfuse, Inc.
    Inventors: Albert Enriquez, Demetrio Criste, Conrado DeLeon, Crispin Zulueta, Roel Retardo, John Semana, Gordon Todd Dietsch
  • Publication number: 20160218502
    Abstract: Provided herein are improved electrical circuit protection devices for protection against electrostatic discharge (ESD), the devices including a first support substrate, a first electrode and a second electrode formed on the first support substrate, wherein the first electrode and the second electrode are formed from a conductive material. The devices further include a first bonding pad disposed on the first and second electrode, the first bonding pad having a first cavity formed therein; a second support substrate disposed on the first bonding pad, the second support substrate having a second cavity formed therein, and a voltage variable material disposed within the first cavity and the second cavity and electrically connected to the first electrode and the second electrode. The devices further include a second bonding pad disposed on the second support substrate, and a third support substrate disposed on the second bonding pad.
    Type: Application
    Filed: January 14, 2016
    Publication date: July 28, 2016
    Applicant: LITTELFUSE, INC.
    Inventors: Conrado De Leon, Albert Enriquez, Editha Liquido, Crispin Zulueta
  • Publication number: 20150009007
    Abstract: A compact, high breaking capacity fuse that includes a top insulative layer, at least one intermediate insulative layer, and a bottom insulative layer arranged in a vertically stacked configuration. The at least one intermediate layer may have a hole formed therethrough that defines a chamber having arc suppression material disposed therein. A first conductive terminal may be formed on a first end of the fuse and a second conductive terminal may be formed on a second end of the fuse. At least one fusible element may connect the first terminal to the second terminal, thus providing an electrically conductive pathway therebetween. A portion of the at least one fusible element may pass through the air gap defined by the hole in the at least one intermediate insulative layer.
    Type: Application
    Filed: September 23, 2014
    Publication date: January 8, 2015
    Applicant: LITTELFUSE, INC.
    Inventors: ALBERT ENRIQUEZ, DEMETRIO CRISTE, CONRADO DE LEON, CRISPIN ZULUETA, ROEL RETARDO, JOHN SEMANA, Gordon Todd Dietsch
  • Publication number: 20140300444
    Abstract: A compact, high breaking capacity fuse that includes a top insulative layer, at least one intermediate insulative layer, and a bottom insulative layer arranged in a vertically stacked configuration. The at least one intermediate layer may have a hole formed therethrough that defines a chamber having arc suppression material disposed therein. A first conductive terminal may be formed on a first end of the fuse and a second conductive terminal may be formed on a second end of the fuse. At least one fusible element may connect the first terminal to the second terminal, thus providing an electrically conductive pathway therebetween. A portion of the at least one fusible element may pass through the air gap defined by the hole in the at least one intermediate insulative layer.
    Type: Application
    Filed: June 24, 2014
    Publication date: October 9, 2014
    Applicant: LITTELFUSE, INC.
    Inventors: ALBERT ENRIQUEZ, DEMETRIO CRISTE, CONRADO DE LEON, CRISPIN ZULUETA, ROEL RETARDO, JOHN SEMANA, Gordon Todd Dietsch
  • Publication number: 20140266564
    Abstract: A compact, high breaking capacity fuse that includes a top insulative layer, at least one intermediate insulative layer, and a bottom insulative layer arranged in a vertically stacked configuration. The at least one intermediate layer may have a hole formed therethrough that defines an air gap within the fuse. A first conductive terminal may be formed on a first end of the fuse and a second conductive terminal may be formed on a second end of the fuse. At least one fusible element may connect the first terminal to the second terminal, thus providing an electrically conductive pathway therebetween. A portion of the at least one fusible element may pass through the air gap defined by the hole in the at least one intermediate insulative layer.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Applicant: Littelfuse, Inc.
    Inventors: Albert Enriquez, Demetrio Criste, Conrado DeLeon, Crispin Zulueta, Roel Retardo, John Semana, Gordon Todd Dietsch
  • Publication number: 20140266565
    Abstract: A compact, high breaking capacity fuse that includes a top insulative layer, at least one intermediate insulative layer, and a bottom insulative layer arranged in a vertically stacked configuration. The at least one intermediate layer may have a hole formed therethrough that defines an air gap within the fuse. A first conductive terminal may be formed on a first end of the fuse and a second conductive terminal may be formed on a second end of the fuse. At least one fusible element may connect the first terminal to the second terminal, thus providing an electrically conductive pathway therebetween. A portion of the at least one fusible element may pass through the air gap defined by the hole in the at least one intermediate insulative layer.
    Type: Application
    Filed: April 15, 2014
    Publication date: September 18, 2014
    Applicant: LITTELFUSE, INC.
    Inventors: ALBERT ENRIQUEZ, DEMETRIO CRISTE, CONRADO DE LEON, CRISPIN ZULUETA, ROEL RETARDO, JOHN SEMANA, Gordon Todd Dietsch