Patents by Inventor Chandan Das
Chandan Das 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: 20230382933Abstract: Molybdenum(0) and coordination complexes are described. Methods for depositing molybdenum-containing films on a substrate are described. The substrate is exposed to a molybdenum precursor and a reactant to form the molybdenum-containing film (e.g., elemental molybdenum, molybdenum oxide, molybdenum carbide, molybdenum silicide, molybdenum disulfide, molybdenum nitride). The exposures can be sequential or simultaneous.Type: ApplicationFiled: August 10, 2023Publication date: November 30, 2023Applicant: Applied Materials, Inc.Inventors: Chandan Kr Barik, John Sudijono, Chandan Das, Doreen Wei Ying Yong, Mark Saly, Bhaskar Jyoti Bhuyan, Feng Q. Liu
-
Publication number: 20230355940Abstract: Devices and methods for supplying oxygen to a patient for treatment of a wound or condition are provided. An outer housing includes a user contact surface with protrusions for penetrating biofilms of the wound and delivering oxygen produced by an onboard oxygen generating subsystem which electrochemically generates oxygen using an onboard power supply. The user contact surface and the protrusions are gas permeable to absorb and transmit generated oxygen into the wound to improve healing or treat the condition.Type: ApplicationFiled: May 5, 2023Publication date: November 9, 2023Inventors: Chandan Das, Trygve Burchardt, Kundan Das
-
Publication number: 20230360967Abstract: Transition metal dichalcogenide films and methods for depositing transition metal dichalcogenide films on a substrate are described. Methods for converting transition metal oxide films to transition metal dichalcogenide films are also described. The substrate is exposed to a metal precursor and an oxidant to form a transition metal oxide film; the transition metal oxide film is exposed to a chalcogenide precursor to form the transition metal dichalcogenide film.Type: ApplicationFiled: May 9, 2022Publication date: November 9, 2023Applicant: Applied Materials, Inc.Inventors: Chandan Das, Susmit Singha Roy, Supriya Ghosh, John Sudijono, Abhijit Basu Mallick, Jiecong Tang
-
Patent number: 11760768Abstract: Molybdenum(0) and coordination complexes are described. Methods for depositing molybdenum-containing films on a substrate are described. The substrate is exposed to a molybdenum precursor and a reactant to form the molybdenum-containing film (e.g., elemental molybdenum, molybdenum oxide, molybdenum carbide, molybdenum silicide, molybdenum disulfide, molybdenum nitride). The exposures can be sequential or simultaneous.Type: GrantFiled: April 21, 2021Date of Patent: September 19, 2023Assignee: Applied Materials, Inc.Inventors: Chandan Kr Barik, John Sudijono, Chandan Das, Doreen Wei Ying Yong, Mark Saly, Bhaskar Jyoti Bhuyan, Feng Q. Liu
-
Publication number: 20230207314Abstract: Transition metal dichalcogenide films and methods for depositing transition metal dichalcogenide films on a substrate are described. Methods for converting transition metal oxide films to transition metal dichalcogenide films are also described. The substrate is exposed to a metal precursor and an oxidant to form a transition metal oxide film; the transition metal oxide film is exposed to a chalcogenide precursor to form the transition metal dichalcogenide film.Type: ApplicationFiled: December 27, 2021Publication date: June 29, 2023Applicant: Applied Materials, Inc.Inventors: Chandan Das, Susmit Singha Roy, Bhaskar Jyoti Bhuyan, Supriya Ghosh, Jiecong Tang, John Sudijono, Abhijit Basu Mallick, Mark Saly
-
Publication number: 20220411918Abstract: Transition metal dichalcogenide films and methods for depositing transition metal dichalcogenide films on a substrate are described. Methods for converting transition metal oxide films to transition metal dichalcogenide films are also described. The substrate is exposed to a precursor and a chalcogenide reactant to form the transition metal dichalcogenide film. The exposures can be sequential or simultaneous.Type: ApplicationFiled: June 28, 2021Publication date: December 29, 2022Applicant: Applied Materials, Inc.Inventors: Chandan Das, Susmit Singha Roy, Bhaskar Jyoti Bhuyan, John Sudijono, Abhijit Basu Mallick, Mark Saly
-
Publication number: 20220356197Abstract: Molybdenum(0) and coordination complexes are described. Methods for depositing molybdenum-containing films on a substrate are described. The substrate is exposed to a molybdenum precursor and a reactant to form the molybdenum-containing film (e.g., elemental molybdenum, molybdenum oxide, molybdenum carbide, molybdenum silicide, molybdenum disulfide, molybdenum nitride). The exposures can be sequential or simultaneous.Type: ApplicationFiled: April 21, 2021Publication date: November 10, 2022Applicant: Applied Materials, Inc.Inventors: Chandan Kr Barik, John Sudijono, Chandan Das, Doreen Wei Ying Yong, Mark Saly, Bhaskar Jyoti Bhuyan, Feng Q. Liu
-
Publication number: 20210001001Abstract: A wound dressing system having an oxygen-permeable membrane having a first surface and a second surface with oxygen-permeable pillars extending from the second surface is described.Type: ApplicationFiled: March 21, 2019Publication date: January 7, 2021Applicant: The University of ToledoInventors: Chandan Das, Munier Nazzal, F. Charles Brunicardi
-
Patent number: 9670447Abstract: The present disclosure is directed to embodiments of microstructured membranes, methods of fabricating microstructured membranes, bioreactors housing microstructured membranes, and methods of using bioreactors and microstructured membranes. In some embodiments, the present disclosure allows culturing of cellular tissues in an environment which more accurately resembles a native environment. In some more specific embodiments, the present disclosure allows culturing of tumor cells on a membrane having a microfabricated pattern which mimics a native vasculature system.Type: GrantFiled: January 28, 2014Date of Patent: June 6, 2017Assignee: The United States of America, as represented by the Secretary, Department of Health and Human ServicesInventors: Chandan Das, Ashley A. Jaeger, Thomas J. Pohida, Michael M. Gottesman, Randall H. Pursley, Philip G. McQueen, Nicole Y. Morgan
-
Publication number: 20140212967Abstract: The present disclosure is directed to embodiments of microstructured membranes, methods of fabricating microstructured membranes, bioreactors housing microstructured membranes, and methods of using bioreactors and microstructured membranes. In some embodiments, the present disclosure allows culturing of cellular tissues in an environment which more accurately resembles a native environment. In some more specific embodiments, the present disclosure allows culturing of tumor cells on a membrane having a microfabricated pattern which mimics a native vasculature system.Type: ApplicationFiled: January 28, 2014Publication date: July 31, 2014Applicant: The United States of America, as represented by the Secretary, Department of Health and Human ServInventors: Chandan Das, Ashley A. Jaeger, Thomas J. Pohida, Michael M. Gottesman, Randall H. Pursley, Philip G. McQueen, Nicole Y. Morgan
-
Patent number: 7528704Abstract: The invention relates to the prevention of injuries and material damage caused by doors (2) of stopped and/or parked motor vehicles (1) by means of at least one camera (4) which monitors the exterior (3) of, especially the space next to and/or above, the vehicle (1). According to the invention, a mode of operation monitoring the inner (7) and/or outer (8) door handle is activated and the exterior (3) of the motor vehicle (1) is monitored by means of the camera (4) if an evaluation unit (6) detects that a fixed or variable speed-related, acceleration-related, and/or distance-related threshold value (SW) is not met, e.g.Type: GrantFiled: January 22, 2004Date of Patent: May 5, 2009Assignee: Siemens AktiengesellschaftInventors: Chandan Das, Henryk Frenzel, Christoph Hamann, Stephan Voltz, Ulrich Wagner
-
Publication number: 20060254142Abstract: The invention relates to the prevention of injuries and material damage caused by doors (2) of stopped and/or parked motor vehicles (1) by means of at least one camera (4) which monitors the exterior (3) of, especially the space next to and/or above, the vehicle (1). According to the invention, a mode of operation monitoring the inner (7) and/or outer (8) door handle is activated and the exterior (3) of the motor vehicle (1) is monitored by means of the camera (4) if an evaluation unit (6) detects that a fixed or variable speed-related, acceleration-related, and/or distance-related threshold value (SW) is not met, e.g.Type: ApplicationFiled: January 22, 2004Publication date: November 16, 2006Inventors: Chandan Das, Henryk Frenzel, Christoph Hamann, Stephan Voltz, Ulrich Wagner
-
Patent number: 6742036Abstract: The present invention supports total personal mobility in the Internet. For a subscriber, service readiness of a terminal that is not connected to the subscriber's home network is provided in that, with the aid of the identification of the subscriber which is inputted via the terminal, an IP address for the subscriber is interrogated at a server agent in the home network of the subscriber, and the interrogated IP address is transferred to a proxy node component of the terminal.Type: GrantFiled: June 16, 2000Date of Patent: May 25, 2004Assignee: Siemens AktiengesellschaftInventors: Chandan Das, Ulrich Gremmelmaier
-
Patent number: 5703708Abstract: When merging optical pulse streams having a high bit rate, there is the problem that, for example given a bit rate of 40 Gbit/s, the pulses at the multiplexer output have 25 pulses temporal spacing and approximately 5 mm spatial spacing. Given a precision of 10% of the bit rate, the light waveguides must be matched with a precision of 0.5 mm, which previously required mechanical or inserted length-adjustable open beam optics and which leads to high outlay. In the optical delay line, by contrast, the temperature of a light waveguide is varied such that the desired optical length is set via the change in the refractive index of the optical fibers. The optical fibers are wound on coil bodies that have a through bore containing a heating element connected to a temperature control.Type: GrantFiled: January 5, 1996Date of Patent: December 30, 1997Assignee: Siemens AktiengesellschaftInventors: Chandan Das, Ulrich Gaubatz, Erich Gottwald