Patents by Inventor Sudipta Roy

Sudipta Roy 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: 20170143207
    Abstract: Disclosed is an apparatus and method for detecting a brain lesion in a magnetic resonance (MR) image, and computer-readable recording medium for implementing the method. The apparatus includes an image area selector for receiving an MR image and creating an image of a brain portion (brain portion image) in which the brain portion is selectively presented; and an image processor for receiving the brain portion image and performing contrast adjustment on the brain portion image to obtain an image for diagnosis in which an area with a suspected lesion is emphasized.
    Type: Application
    Filed: December 23, 2015
    Publication date: May 25, 2017
    Applicant: SUNGSHIN WOMEN'S UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Sudipta Roy, Sanjay Nag, Samir Kumar Bandyopadhyay, Debnath Bhattacharyya, Tai-Hoon Kim
  • Patent number: 8840846
    Abstract: An apparatus for catalytic cracking of feedstock includes a first channel in which a feedstock is treated with an adsorbent to obtain a treated intermediate. The apparatus further comprises a separator-reactor vessel. The separator-reactor vessel includes an adsorbent separating region to remove the adsorbent from the treated intermediate. The separator-reactor vessel further includes a second channel connected to the adsorbent separating region. The treated intermediate is contacted with a catalyst in the second channel to produce a cracking yield. The second channel terminates in a catalyst separating region of the separator-reactor vessel. The catalyst is removed from the cracking yield in the catalyst separating region. The separator-reactor vessel further includes a physical partition disposed between the adsorbent separating region and the catalyst separating region to separate the two regions.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: September 23, 2014
    Assignee: Indian Oil Corporation Ltd.
    Inventors: Debasis Bhattacharyya, Gadari Saidulu, Arumugam Velayutham Karthikeyani, Pankaj Kasliwal, Bandaru Venkata Hari Prasad Gupta, Ram Mohan Thakur, Jagdev Kumar Dixit, Sudipta Roy, Ganga Shanker Mishra, Satyen Kumar Das, Santanam Rajagopal
  • Publication number: 20130020234
    Abstract: An apparatus for catalytic cracking of feedstock includes a first channel in which a feedstock is treated with an adsorbent to obtain a treated intermediate. The apparatus further comprises a separator-reactor vessel. The separator-reactor vessel includes an adsorbent separating region to remove the adsorbent from the treated intermediate. The separator-reactor vessel further includes a second channel connected to the adsorbent separating region. The treated intermediate is contacted with a catalyst in the second channel to produce a cracking yield. The second channel terminates in a catalyst separating region of the separator-reactor vessel. The catalyst is removed from the cracking yield in the catalyst separating region. The separator-reactor vessel further includes a physical partition disposed between the adsorbent separating region and the catalyst separating region to separate the two regions.
    Type: Application
    Filed: March 30, 2011
    Publication date: January 24, 2013
    Applicant: INDIAN OIL CORPORATION LIMITED
    Inventors: Debasis Bhattacharyya, Gadari Saidulu, Arumugam Velayutham Karthikeyani, Pankaj Kasliwal, Bandaru Venkata Hari Prasad Gupta, Ram Mohan Thakur, Jagdev Kumar Dixit, Sudipta Roy, Ganga Shanker Mishra, Satyen Kumar Das, Santanam Rajagopal
  • Patent number: 7776227
    Abstract: A method of depositing or etching a micro- or nano-scale pattern on a work piece is disclosed, including the steps of: (a) placing the work piece in an electrochemical reactor in close proximity to a patterned tool; (b) connecting the work piece such that it is the anode if is to be etched or the cathode if it is to be deposited, and the patterned tool such that it is the counter electrode; (c) pumping electrolytic fluid necessary for the electrolytic operation of the cell formed between the two electrodes; and (d) applying a current across the electrodes to etch or deposit the work piece.
    Type: Grant
    Filed: July 19, 2005
    Date of Patent: August 17, 2010
    Assignee: University of Newcastle Upon Tyne
    Inventor: Sudipta Roy
  • Patent number: 7517827
    Abstract: The present invention relates to a cracking catalyst composition for cracking heavy hydrocarbon and processes for preparing the catalyst. The process can include treating zeolite with sodium free basic compound with or without phosphate, treating an alumina with a dilute acid, acidifying a colloidal silica, preparing a fine slurry of clay with a source of phosphate, adding alumina slurry and/or acidified colloidal silica to clay phosphate slurry, adding treated zeolite and spray-drying the slurry and calcining the same to obtain a cracking catalyst having adequate ABD and attrition resistance property.
    Type: Grant
    Filed: August 17, 2006
    Date of Patent: April 14, 2009
    Assignee: Indian Oil Company Ltd
    Inventors: Gopal Ravichandran, Biswanath Sarkar, Mohan P. Kuvettu, Deepa Megavathu, Sanjay K Ray, Shiba P. Choudhury, Sudipta Roy, Venkatachalam Krishnan, Satish Makhija
  • Publication number: 20080283501
    Abstract: A method of depositing or etching a micro- or nano-scale pattern on a work piece is disclosed, including the steps of: (a) placing the work piece in an electrochemical reactor in close proximity to a patterned tool; (b) connecting the work piece such that it is the anode if is to be etched or the cathode if it is to be deposited, and the patterned tool such that it is the counter electrode; (c) pumping electrolytic fluid necessary for the electrolytic operation of the cell formed between the two electrodes; and (d) applying a current across the electrodes to etch or deposit the work piece.
    Type: Application
    Filed: July 19, 2005
    Publication date: November 20, 2008
    Applicant: UNIVERSITY OF NEWCASTLE UPON TYNE
    Inventor: Sudipta Roy
  • Publication number: 20070203017
    Abstract: The present invention relates to a cracking catalyst composition for cracking heavy hydrocarbon and processes for preparing the catalyst. The process can include treating zeolite with sodium free basic compound with or without phosphate, treating an alumina with a dilute acid, acidifying a colloidal silica, preparing a fine slurry of clay with a source of phosphate, adding alumina slurry and/or acidified colloidal silica to clay phosphate slurry, adding treated zeolite and spray-drying the slurry and calcining the same to obtain a cracking catalyst having adequate ABD and attrition resistance property.
    Type: Application
    Filed: August 17, 2006
    Publication date: August 30, 2007
    Inventors: Gopal Ravichandran, Biswanath Sarkar, Mohan P. Kuvettu, Deepa Megavathu, Sanjay K. Ray, Shiba P. Choudhury, Sudipta Roy, Venkatachalam Krishnan, Satish Makhija