Patents by Inventor Vimal Kumar
Vimal 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).
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Patent number: 11651956Abstract: A method for removing a native oxide film from a semiconductor substrate includes repetitively depositing layers of germanium on the native oxide and heating the substrate causing the layer of germanium to form germanium oxide, desorbing a portion of the native oxide film. The process is repeated until the oxide film is removed. A subsequent layer of strontium titanate can be deposited on the semiconductor substrate, over either residual germanium or a deposited germanium layer. The germanium can be converted to silicon germanium oxide by exposing the strontium titanate to oxygen.Type: GrantFiled: March 11, 2022Date of Patent: May 16, 2023Assignee: PSIQUANTUM, CORP.Inventors: Yong Liang, Vimal Kumar Kamineni
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Patent number: 11640338Abstract: The systems and methods herein permit storage systems to correctly perform data recovery, such as direct access recovery, of Network Data Management Protocol (“NDMP”) backup data that was modified prior to being stored in secondary storage media, such as tape. The systems and methods permit NDMP backup data to be encrypted, compressed, deduplicated, and/or otherwise modified prior to storage. The systems and methods herein also permit a user to perform a precautionary snapshot of the current state of data (e.g., primary data) prior to reverting data to a previous state using point-in-time data.Type: GrantFiled: March 10, 2021Date of Patent: May 2, 2023Assignee: Commvault Systems, Inc.Inventors: Duncan Alden Littlefield, Vimal Kumar Nallathambi, Girish Chanchlani
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Publication number: 20230123000Abstract: A device includes a substrate, a dielectric layer on the substrate, a waveguide within the dielectric layer, and a photodetector optically coupled to the waveguide. The photodetector is disposed above the waveguide layer and is monolithically integrated with the substrate. The photodetector is configured to operate at low temperatures, such as below about 50 K or about 20 K. In some embodiments, the monolithic photonic device includes thermal isolation structures and optical isolation structures. Techniques for manufacturing the monolithic photonic device, including the thermal isolation structures and optical isolation structures, are also described.Type: ApplicationFiled: December 15, 2022Publication date: April 20, 2023Applicant: Psiquantum, Corp.Inventors: Vimal Kumar Kamineni, Matteo Staffaroni, Faraz Najafi, Ann Melnichuk, George Kovall, Yong Liang
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Publication number: 20230018940Abstract: In some embodiments method comprises depositing a ferroelectric layer on a top surface of a semiconductor wafer and forming one or more gaps in the ferroelectric layer. The one or more gaps can be formed on a repetitive spacing to relieve stresses between the ferroelectric layer and the semiconductor wafer. A first dielectric layer is deposited over the ferroelectric layer and the first dielectric layer is planarized to fill in the gaps. A second dielectric layer is formed between the ferroelectric layer and the semiconductor wafer. The second dielectric layer can be formed by annealing the wafer in an oxidizing atmosphere such that an upper portion of the semiconductor substrate forms an oxide layer between the semiconductor substrate and the ferroelectric layer.Type: ApplicationFiled: July 15, 2021Publication date: January 19, 2023Applicant: Psiquantum, Corp.Inventors: Yong Liang, Vimal Kumar Kamineni, Chia-Ming Chang, James McMahon
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Patent number: 11518733Abstract: The present invention provides process for preparation of highly pure Fingolimod hydrochloride (I), without involving the use of column chromatographic purification in the entire process. Fingolimod hydrochloride (I) obtained by the process of present invention may be useful as active pharmaceutical ingredient in pharmaceutical compositions for the treatment of autoimmune related disorder including multiple sclerosis.Type: GrantFiled: September 8, 2021Date of Patent: December 6, 2022Assignee: SHIVALIK RASAYAN LIMITEDInventors: Akshay Kant Chaturvedi, Vimal Kumar Shrawat, Sahdev Singh
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Patent number: 11507470Abstract: An illustrative approach to managing snapshots streamlines how and when snapshots are generated in a storage management system, such that fewer snapshots may be generated without diminishing the scope of data protection. A novel unified-snapshot storage policy may govern snapshots for any number of subclients. A unified-snapshot job based on the unified-snapshot storage policy enables the illustrative storage management system to automatically discover relevant components and generate at most one snapshot per target logical unit number (“LUN”) in a storage array. Each snapshot may comprise the data of any number of subclients and/or clients in the storage management system. Accordingly, one unified-snapshot job may yield a minimum but sufficient number of snapshots comprising data of all subclients associated with the governing unified-snapshot storage policy. An enhanced storage manager may manage the unified-snapshot jobs.Type: GrantFiled: March 3, 2020Date of Patent: November 22, 2022Assignee: Commvault Systems, Inc.Inventors: Vimal Kumar Nallathambi, Manoj Kumar Vijayan
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Patent number: 11436083Abstract: A method, an apparatus, and a system for data address management in non-volatile memory. Write data is allocated to each of a plurality of multi-level pages configured for storage on a page of a non-volatile memory array. A digest is associated with the write data of one multi-level page based on an attribute for that multi-level page. This attribute differs from the attributes of at least one of the other multi-level pages. An amount of redundancy data to be stored with write data on the multi-level page is reduced to account for the associated digest. A digest may be distributed among a plurality of ECC codewords of a multi-level page. The reduced redundancy data, the digest, and the write data for the multi-level page are stored on the page along with the write data for each of the other multi-level pages of the plurality of multi-level pages.Type: GrantFiled: March 29, 2021Date of Patent: September 6, 2022Assignee: Western Digital Technologies, Inc.Inventor: Vimal Kumar Jain
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Publication number: 20220270874Abstract: A method for removing a native oxide film from a semiconductor substrate includes repetitively depositing layers of germanium on the native oxide and heating the substrate causing the layer of germanium to form germanium oxide, desorbing a portion of the native oxide film. The process is repeated until the oxide film is removed. A subsequent layer of strontium titanate can be deposited on the semiconductor substrate, over either residual germanium or a deposited germanium layer. The germanium can be converted to silicon germanium oxide by exposing the strontium titanate to oxygen.Type: ApplicationFiled: March 11, 2022Publication date: August 25, 2022Applicant: Psiquantum, Corp.Inventors: Yong Liang, Vimal Kumar Kamineni
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Publication number: 20220129388Abstract: A non-volatile storage system includes a memory controller connected to an integrated memory assembly. The integrated memory assembly includes a memory die comprising non-volatile memory cells and a control die bonded to the memory die. The memory controller receives commands from a host, performs logical address to physical address translation (“address translation”) operations for the commands, and instructs the integrated memory assembly to perform one or more operations in support of the command. The control die also includes the ability to perform the address translation. When performing a command from the host, the memory controller can choose to perform the necessary address translation or instruct the control die to perform the address translation. When the control die performs the address translation, the resulting physical address is used by the control die to perform one or more operations in support of the command.Type: ApplicationFiled: February 17, 2021Publication date: April 28, 2022Applicant: WESTERN DIGITAL TECHNOLOGIES, INC.Inventors: Rakesh Balakrishnan, Eldhose Peter, Akhilesh Yadav, Ramanathan Muthiah, Vimal Kumar Jain
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Patent number: 11302528Abstract: A method for removing a native oxide film from a semiconductor substrate includes repetitively depositing layers of germanium on the native oxide and heating the substrate causing the layer of germanium to form germanium oxide, desorbing a portion of the native oxide film. The process is repeated until the oxide film is removed. A subsequent layer of strontium titanate can be deposited on the semiconductor substrate, over either residual germanium or a deposited germanium layer. The germanium can be converted to silicon germanium oxide by exposing the strontium titanate to oxygen.Type: GrantFiled: February 14, 2020Date of Patent: April 12, 2022Assignee: PSIQUANTUM, CORP.Inventors: Yong Liang, Vimal Kumar Kamineni
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Publication number: 20220107518Abstract: An electro-optic device includes a substrate and a waveguide on the substrate. The waveguide includes a layer stack including a plurality of electro-optic material layers interleaved with a plurality of interlayers and a waveguide core adjacent to the layer stack. The waveguide may include a pair of electrodes in electrical contact with the plurality of electro-optic material layers. The plurality of interlayers maintains a first lattice structure at room temperature and a cryogenic temperature. The plurality of electro-optic material layers maintains a second lattice structure and crystallographic phase at the room temperature and the cryogenic temperature.Type: ApplicationFiled: December 15, 2021Publication date: April 7, 2022Applicant: PSIQUANTUM, CORP.Inventors: Yong Liang, Mark G. Thompson, Chia-Ming Chang, Vimal Kumar Kamineni
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Publication number: 20220075687Abstract: A method, an apparatus, and a system for data address management in non-volatile memory. Write data is allocated to each of a plurality of multi-level pages configured for storage on a page of a non-volatile memory array. A digest is associated with the write data of one multi-level page based on an attribute for that multi-level page. This attribute differs from the attributes of at least one of the other multi-level pages. An amount of redundancy data to be stored with write data on the multi-level page is reduced to account for the associated digest. A digest may be distributed among a plurality of ECC codewords of a multi-level page. The reduced redundancy data, the digest, and the write data for the multi-level page are stored on the page along with the write data for each of the other multi-level pages of the plurality of multi-level pages.Type: ApplicationFiled: March 29, 2021Publication date: March 10, 2022Applicant: Western Digital Technologies, Inc.Inventor: Vimal Kumar JAIN
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Publication number: 20220064102Abstract: The present invention provides process for preparation of highly pure Fingolimod hydrochloride (I), without involving the use of column chromatographic purification in the entire process. Fingolimod hydrochloride (I) obtained by the process of present invention may be useful as active pharmaceutical ingredient in pharmaceutical compositions for the treatment of autoimmune related disorder including multiple sclerosis.Type: ApplicationFiled: September 8, 2021Publication date: March 3, 2022Applicant: SHIVALIK RASAYAN LIMITEDInventors: AKSHAY KANT CHATURVEDI, VIMAL KUMAR SHRAWAT, SAHDEV SINGH
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Patent number: 11245759Abstract: A “snapshot-control media agent” (“snap-MA”) is configured on a secondary storage computing device that operates apart from client computing devices. A “forwarder” media agent operates on each client computing device that uses a storage array, yet lacks command channels to the storage array. The forwarder media agent forwards commands directed at the storage array to the snap-MA, which receives and processes commands directed at the storage array that were forwarded by the forwarder media agents. Responses from the storage array are transmitted to the respective forwarder media agent. The snap-MA pools storage-array-command devices to avoid capacity limitations in regard to communications channels at the storage array.Type: GrantFiled: August 28, 2020Date of Patent: February 8, 2022Assignee: Commvault Systems, Inc.Inventors: Vimal Kumar Nallathambi, Unmil Vinay Tambe
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Patent number: 11226507Abstract: An electro-optic device includes a substrate and a waveguide on the substrate. The waveguide includes a layer stack including a plurality of electro-optic material layers interleaved with a plurality of interlayers, a waveguide core adjacent to the layer stack, a waveguide cladding layer, and a pair of electrodes in electrical contact with the plurality of electro-optic material layers. The plurality of interlayers maintains a first lattice structure at room temperature and a cryogenic temperature. The plurality of electro-optic material layers maintains a second lattice structure and crystallographic phase at the room temperature and the cryogenic temperature.Type: GrantFiled: October 28, 2020Date of Patent: January 18, 2022Assignee: PSIQUANTUM, CORP.Inventors: Yong Liang, Mark G. Thompson, Chia-Ming Chang, Vimal Kumar Kamineni
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Patent number: 11213499Abstract: The present invention describes the method of using a synthetic organoselenium compound, DSePA for management of non-small cell lung carcinoma (NSCLC) and chronic myelogenous leukemia (CML). The method comprises administering DSePA orally at a dosage of 1 mg/Kg body weight daily for inhibiting the growth of A549 (representative of NSCLC) and K562 (representative of CML) tumor in mice models. Additionally, the said compound also inhibits the proliferation of other cancer cells of NSCLC (HOP-62 and H460), breast (MDA-MB-231), white blood cells (JURKAT and U-937), oral (SCC-40), colon (HT-29), kidney (A498) and cervix (SiHA) origins in cellular models at a much lower concentration than that needed to inhibit the growth of normal cells.Type: GrantFiled: August 26, 2020Date of Patent: January 4, 2022Assignee: Secretary, Department of Atomic EnergyInventors: Amit Kunwar, Vishwa Vipulkumar Gandhi, Khushboo Atulkumar Gandhi, Vikram Suryaprakash Gota, Jayant Sastri Goda, Jyoti Anand Kode, Liladhar Baburao Kumbhare, Vimal Kumar Jain, Kavirayani Indira Priyadarsini
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Publication number: 20210374305Abstract: Optical fiber network or fiber network is used for transmitting large volumes of data with maximum speed. Fiber to home is a recent technology of the fiber network where the initial fiber rollout cost is more. Hence a proper network management is necessary to rollout the fiber network in an optimized manner. Conventional methods provides construction led approach for fiber network planning and field survey. The present disclosure receives a plurality of geocoded addresses associated with a plurality of users and an average revenue per user. A fiber rollout cost projection is performed based on the input data and a fiber network is generated based on the projected fiber rollout cost. Further, field survey is performed based on the generated network and a fiber network construction design is made. Further, a fiber network rollout is performed based on the fiber network construction design and a redline deviation markup.Type: ApplicationFiled: March 9, 2021Publication date: December 2, 2021Applicant: Tata Consultancy Services LimitedInventors: Ashwani GUPTA, Vimal KUMAR, Rajesh AGGARWAL
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Publication number: 20210292670Abstract: Organic sulfur compounds which are generally present in the crude oil undergoes various transformations while processing the crude oil in the secondary processing units such as fluid catalytic cracker, hydrocracker, delayed coker, visbreaker, etc. The sulfur present in the feed which enters into these secondary processing units are distributed into various products coming out of the units. Sulfur compounds which are present in the various product fractions are removed to meet the desired specifications before routing to the final product pool. Conventionally, sulfur present in the LPG has been removed by amine treatment followed by caustic and water wash. The present invention relates to a process for removal of sulfur and other impurities from Liquefied Petroleum Gas (LPG) comprising olefins through reactive desulfurization route. The present invention is an eco-friendly process as it minimizes or eliminates the use of caustic which is conventionally used to remove the sulfur from LPG.Type: ApplicationFiled: March 17, 2021Publication date: September 23, 2021Inventors: Saravanan SUBRAMANI, Vimal Kumar Upadhyay, Prosenjit Maji, Reshmi Manna, Vatsala Sugumaran, Mahalingam Vanamamalai, Madhusudan Sau, Gurpreet Singh Kapur, Sankara Sri Venkata Ramakumar
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Publication number: 20210240571Abstract: The systems and methods herein permit storage systems to correctly perform data recovery, such as direct access recovery, of Network Data Management Protocol (“NDMP”) backup data that was modified prior to being stored in secondary storage media, such as tape. The systems and methods permit NDMP backup data to be encrypted, compressed, deduplicated, and/or otherwise modified prior to storage. The systems and methods herein also permit a user to perform a precautionary snapshot of the current state of data (e.g., primary data) prior to reverting data to a previous state using point-in-time data.Type: ApplicationFiled: March 10, 2021Publication date: August 5, 2021Inventors: Duncan Alden LITTLEFIELD, Vimal Kumar NALLATHAMBI, Girish CHANCHLANI
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Publication number: 20210209060Abstract: An information management system according to certain aspects may determine whether storage operations will execute properly prior to executing them in a cloud services environment. The system may check various factors or parameters relating to a storage policy to verify whether the storage policy will work at runtime without actually executing the policy. Some examples of factors can include: availability of primary storage devices, availability of secondary storage devices, license availability for performing that operation, user credentials for connecting to primary and/or second storage devices, available storage capacity, connectivity to storage devices, etc. The system may also check whether a particular system configuration is supported in connection with storage operations. The result of the determination can be provided in the form of a report summarizing any problems found with the storage policy. The report can include recommended courses of action or solutions for resolving any identified issues.Type: ApplicationFiled: January 15, 2021Publication date: July 8, 2021Inventors: Rajiv KOTTOMTHARAYIL, Manoj Kumar VIJAYAN, Vimal Kumar NALLATHAMBI, Unmil Vinay TAMBE