Patents by Inventor Samir Kumar

Samir Kumar 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: 9372466
    Abstract: A cleaning blade lubricant including an acicular shape lubricant is provided. The cleaning blade lubricant is applied to a cleaning blade of an electrophotographic printing device for improving the cleaning performance of a cleaning blade of an electrophotographic printing device.
    Type: Grant
    Filed: June 7, 2013
    Date of Patent: June 21, 2016
    Assignee: XEROX CORPORATION
    Inventors: Michael F Zona, Juan A Morales-Tirado, Samir Kumar
  • Publication number: 20160171806
    Abstract: A system includes a memory configured to store data associated with a service that is available. The system also includes a microphone associated with an acoustic space and configured to receive an audio input produced by a person. The system further includes a sensor located within the acoustic space and configured to detect vibrations produced by the person. The system includes a processor coupled to the memory, to the microphone, and to the sensor. The processor is configured to conditionally authorize execution of the service requested by the person, the service conditionally authorized based on the audio input and the vibrations.
    Type: Application
    Filed: December 11, 2015
    Publication date: June 16, 2016
    Inventors: Shaun William Van Dyken, Erik Visser, Asif Iqbal Mohammad, Samir Kumar Gupta, Lae-Hoon Kim, Sreekanth Narayanaswamy, Phuong Ton
  • Patent number: 9335667
    Abstract: A two component development system includes a plurality of toner particles that include a colorant and a plurality of toner carrier particles that include a magnetic carrier core having a D50 diameter in a range from about 30 microns to about 40 microns, and a surfactant-polymer coating, the coating being present in an amount in a range from about 0.5 percent by weight to about 1.5 percent by weight of the toner carrier particle.
    Type: Grant
    Filed: April 2, 2015
    Date of Patent: May 10, 2016
    Assignee: XEROX CORPORATION
    Inventors: Michael F. Zona, Brian S. Giannetto, Bernard A. Kelly, Brian E. Moore, Juan A. Morales-Tirado, Samir Kumar, Elizabeth K. Priebe
  • Patent number: 9332003
    Abstract: The disclosed computer-implemented method for discovering website certificate information may include (1) receiving, from a plurality of computing devices within a community of users, information that identifies the certificate statuses of websites visited by the computing devices, (2) identifying, by analyzing the information, at least one issue with the certificate status of at least one website visited by at least one of the computing devices, and (3) performing at least one remedial action in an attempt to correct the issue with the certificate status of the website. Various other methods, systems, and computer-readable media are also disclosed.
    Type: Grant
    Filed: May 3, 2014
    Date of Patent: May 3, 2016
    Assignee: Symantec Corporation
    Inventors: Samir Kumar Rakshit, Vasantha Kumar Parameshwarappa
  • Publication number: 20150361473
    Abstract: The present invention is directed towards genetic modification of native gene encoding for D-tagatose 3-epimerase and rhamnose isomerase to substantially increase the expression level of these enzymes and use of said enzymes in a process to produce rare monosaccharides such as psicose and allose. Also disclosed in the present invention is expression constructs comprising the modified genes and a host cells to express the same.
    Type: Application
    Filed: April 17, 2013
    Publication date: December 17, 2015
    Inventors: Saravanakumar Iyappan, Samir Kumar Roy, Saju Varghese, Aparna Devi Addala, Venkata Narayanan Karthikeyan, Kanumuru Rahul Raju, Banibrata Pandey
  • Publication number: 20150344865
    Abstract: The present invention is directed towards genetic modification of native gene encoding for sucrose isomerase and isomaltulose synthase to substantially increase the expression level of these enzymes and use of said enzymes in a process to produce rare disaccharides such as isomaltulose and trehalulose. Also disclosed in the present invention is expression constructs comprising the modified genes and a host cells to express the same.
    Type: Application
    Filed: April 17, 2013
    Publication date: December 3, 2015
    Inventors: Samir Kumar Roy, Saravanakumar Iyappan, Saju Varghese, Aparna Devi Addala, Milky Agarwal, Kanumuru Rahul Raju, Banibrata Pandey
  • Publication number: 20150321177
    Abstract: An improved catalyst for hydrodemetallization of heavy crude oils and residua is disclosed. The catalyst is adopted for fixed bed hydroprocessing units. The invention is characterized for having a large pore diameter catalyst principally for hydrodemetallization of heavy oil and residue in a first reactor of a multi-reactor process. The catalyst has high demetallizing activity and high metal deposition capacity which results in good stability with time on stream (TOS). The hydrorefining catalyst is obtained by kneading a porous starting powder principally composed of gamma-alumina and having a pore capacity of 0.3-0.6 ml/g or larger and a mean pore diameter of 10 to 26 nm, extrudating and calcining, and after that supported with active metals component of elements belonging to groups VIIIB and VIB of the periodic table.
    Type: Application
    Filed: July 22, 2015
    Publication date: November 12, 2015
    Inventors: Mohan Singh RANA, Jorge ANCHEYTA JUAREZ, Patricia RAYO MAYORAL, Samir KUMAR MAITY
  • Patent number: 9176403
    Abstract: A process includes forming, by emulsion polymerization, polymer resin particles in a latex, the polymer resin particles being formed from a mixture including one or more monomer emulsions and a non-surfactant-based charge control agent, the emulsion polymerization is carried out with a solids content in a range from about 10 to about 30 percent by weight of the mixture, and forming toner particles from the polymer resin particles, the toner particles support a sufficient triboelectric charge for use under A-zone environmental conditions in a single-component development system.
    Type: Grant
    Filed: July 16, 2013
    Date of Patent: November 3, 2015
    Assignee: XEROX CORPORATION
    Inventors: Karen Moffat, Shigang Steven Qiu, Samir Kumar, Robert D. Bayley, Grazyna E. Kmiecik-Lawrynowicz, Maura A. Sweeney
  • Publication number: 20150309662
    Abstract: This disclosure provides systems, methods and apparatus related to touch and gesture recognition with an electronic interactive display. The interactive display has a front surface that includes a viewing area, a planar light guide disposed proximate to and behind the front surface, a light source, and at least one photo sensing element coupled with the first planar light guide. The planar light guide is configured to receive scattered light, the received scattered light resulting from interaction between light emitted by the light source and an object in optical contact with the front surface. The photo sensing element is configured to detect at least some of the received scattered light and to output, to a processor, image data. The processor is configured to recognize, from the image data, one or both of a contact pressure and a rotational orientation of the object.
    Type: Application
    Filed: September 30, 2014
    Publication date: October 29, 2015
    Inventors: John Michael Wyrwas, Evgeni Petrovich Gousev, Russell Wayne Gruhlke, Khurshid Syed Alam, Jacek Maitan, Linda Stacey Irish, Evgeni Yurij Poliakov, Thomas Gordon Brown, Samir Kumar Gupta
  • Patent number: 9164410
    Abstract: A toner composition with a novel surface additive package for developing images is provided. The additive package comprises a sol-gel silica, a PDMS silica, an HMDS silica, and an organic spacer such as PMMA, and melamine. The toner composition exhibits improved properties and are useful for high speed printing on Single Component Development systems.
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: October 20, 2015
    Assignee: XEROX CORPORATION
    Inventors: Grazyna E. Kmiecik-Lawrynowicz, Maura A. Sweeney, Daniel W. Asarese, Samir Kumar
  • Publication number: 20150271171
    Abstract: The disclosed computer-implemented method for discovering website certificate information may include (1) receiving, from a plurality of computing devices within a community of users, information that identifies the certificate statuses of websites visited by the computing devices, (2) identifying, by analyzing the information, at least one issue with the certificate status of at least one website visited by at least one of the computing devices, and (3) performing at least one remedial action in an attempt to correct the issue with the certificate status of the website. Various other methods, systems, and computer-readable media are also disclosed.
    Type: Application
    Filed: May 3, 2014
    Publication date: September 24, 2015
    Applicant: Symantec Corporation
    Inventors: Samir Kumar Rakshit, Vasantha Kumar Parameshwarappa
  • Patent number: 9133401
    Abstract: An improved catalyst for hydrodemetallization of heavy crude oils and residua is disclosed. The catalyst is adopted for fixed bed hydroprocessing units. The invention is characterized for having a large pore diameter catalyst principally for hydrodemetallization of heavy oil and residue in a first reactor of a multi-reactor process. The catalyst has high demetallizing activity and high metal deposition capacity which results in good stability with time on stream (TOS). The hydrorefining catalyst is obtained by kneading a porous starting powder principally composed of gamma-alumina and having a pore capacity of 0.3-0.6 ml/g or larger and a mean pore diameter of 10 to 26 nm, extrudating and calcining, and after that supported with active metals component of elements belonging to groups VIIIB and VIB of the periodic table.
    Type: Grant
    Filed: May 26, 2008
    Date of Patent: September 15, 2015
    Assignee: INSTITUTO MEXICANO DEL PETROLEO
    Inventors: Mohan Singh Rana, Jorge Ancheyta Juárez, Patricia Rayo Mayoral, Samir Kumar Maity
  • Publication number: 20150241393
    Abstract: Embodiments of an ultrasonic button and methods for using the ultrasonic button are disclosed. In one embodiment, an ultrasonic button may include an ultrasonic transmitter configured to transmit an ultrasonic wave, a piezoelectric receiver layer configured to receive a reflected wave of the ultrasonic wave, a platen layer configured to protect the ultrasonic transmitter and the piezoelectric receiver layer, a first matching layer configured to match an acoustic impedance of the platen layer with an acoustic impedance of ridges of a finger, and an ultrasonic sensor array configured to detect the finger using the reflected wave.
    Type: Application
    Filed: February 20, 2015
    Publication date: August 27, 2015
    Inventors: Suryaprakash Ganti, Srikanth Chilukuru, Livingstone Song, Kostadin Dimitrov Djordjev, Jack Conway Kitchens, John Schneider, Nicholas Ian Buchan, Leonard Eugene Fennell, Hrishikesh Vijaykumar Panchawagh, Ashish Hinger, Nai-Kuei Kuo, Kollengode Narayanan, Samir Kumar Gupta, Timothy Dickinson, Max Hamel, David William Burns, Muhammed Ibrahim Sezan, Eugene Dantsker
  • Publication number: 20150220012
    Abstract: Hyperpigmented magenta toner, that is indistinguishable from standard and conventional magenta toner, contains PR122 and PR260 in a 56:44 weight ratio and can be used with reduced TMA as compared to conventional magenta toner.
    Type: Application
    Filed: February 6, 2014
    Publication date: August 6, 2015
    Applicant: Xerox Corporation
    Inventors: Padam K Angra, Samir Kumar, Christopher M Wolfe, Brendan H Williamson
  • Patent number: 9079786
    Abstract: The present invention is directed to an improved method of processing thin stillage from ethanol production and/or other industrial processes to produce high value fungal biomass that can be recovered by simple means. The effluent is sanitized and recycled using a novel disinfection technique. This innovative approach generates revenue from low value thin stillage, while reducing wastewater purification costs.
    Type: Grant
    Filed: June 20, 2007
    Date of Patent: July 14, 2015
    Inventors: Johannes Van Leeuwen, Samir Kumar Khanal, Anthony L. Pometto
  • Patent number: 9083994
    Abstract: A method and system for resynchronizing an embedded multimedia system using bytes consumed in an audio decoder. The bytes consumed provides a mechanism to compensate for bit error handling and correction in a system that does not require re-transmission. The audio decoder keeps track of the bytes consumed and periodically reports the bytes consumed. A host microprocessor indexes the actual bytes consumed since bit errors may have been handled or corrected to a predetermined byte count to determine whether resynchronization is necessary.
    Type: Grant
    Filed: September 26, 2006
    Date of Patent: July 14, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Mingxia Cheng, Anthony Patrick Mauro, II, Eddie L. T. Choy, Yujie Gao, Kuntal Dilipsinh Sampat, Matthew Blaine Zivney, Satish Goverdhan, Samir Kumar Gupta, Harinath Garudadri
  • Patent number: 9077546
    Abstract: Methods and apparatuses for authenticating a secure sockets layer certificate (SSL) certificate are described herein. The methods include receiving the SSL certificate associated with a website, identifying a chain of trust associated with the SSL certificate, transmitting, to a security manager, a validation request based on the SSL certificate and a certificate in the chain of trust, receiving a validation response from the security manager, and presenting an indication of trustworthiness, to a user, based on the validation response. The apparatuses are provided to implement the methods.
    Type: Grant
    Filed: November 27, 2012
    Date of Patent: July 7, 2015
    Assignee: Symnatec Corporation
    Inventor: Samir Kumar Rakshit
  • Patent number: 9029057
    Abstract: Emulsion aggregation toner comprising: a resin; a wax; a colorant; an encapsulating shell; and a silica external additive comprising: first silica particles comprising fumed silica particles surface treated with octyldimethylsiloxane and having average particle diameter about 6-20 nm, present in amount of about 0.1-1% by weight of the toner; second silica particles comprising colloidal silica particles surface treated with hexamethyldisiloxane and having average particle diameter about 80-200 nm, present in amount of about 1-2% by weight of the toner; third silica particles comprising fumed silica particles surface treated with polydimethylsiloxane and having average particle diameter about 25-65 nm, present in amount of from about 0.5-1.5% by weight of the toner; and fourth silica particles comprising fumed silica particles surface treated with hexamethyldisiloxane and having average particle diameter about 25-65 nm, present in amount of about 1-2.5% by weight of the toner.
    Type: Grant
    Filed: April 17, 2013
    Date of Patent: May 12, 2015
    Assignee: Xerox Corporation
    Inventors: Grazyna E. Kmiecik-Lawrynowicz, Maura A. Sweeney, Samir Kumar, Daniel W. Asarese
  • Publication number: 20150086916
    Abstract: Toner compositions that having spherical particles and provide stable density. The toner compositions also comprise and deliver a silicone oil to the cleaning subsystem in the image forming apparatus by incorporating an inorganic fine powder additive package that has been mixed with silicone oil in a manner such that the toner is blended with the inorganic fine powder and silicone oil.
    Type: Application
    Filed: September 20, 2013
    Publication date: March 26, 2015
    Applicant: XEROX CORPORATION
    Inventors: JUAN A. MORALES-TIRADO, Mark E. Mang, Michael F. Zona, Samir Kumar, Susan J. LaFica
  • Patent number: 8980519
    Abstract: A toner composition includes a resin, optionally a wax, a colorant, and an acicular surface additive. The toner composition is suitable for use in a single component development system and which composition possesses excellent charging, stability, and flow characteristics.
    Type: Grant
    Filed: May 23, 2013
    Date of Patent: March 17, 2015
    Assignee: Xerox Corporation
    Inventors: Juan A. Morales-Tirado, Samir Kumar, Michael F. Zona