Patents by Inventor C. Rao
C. Rao 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: 7304164Abstract: 1-Methyl-2,4,5-Trinitroimidazole is synthesized starting from 4-nitroimidazole using stepwise nitration method and further methylation using Dimethylsulphate. It is relatively insensitive to impact and its thermal stability is excellent. The calculated detonation properties indicate that its performance is about 30% better than TATB. It can be prepared easily, with reasonable yield, starting from commercially available Imidazole. Results from impact sensitivity, friction sensitivity, time-to-explosion temperature and vacuum stability tests indicate that it is less sensitive than both RDX and HMX. The good oxygen balance and measured heat of formation data of this material indicate that its propellant performance should be good.Type: GrantFiled: October 13, 2006Date of Patent: December 4, 2007Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Reddy Damavarapu, C. Rao Surapaneni, Nathaniel Gelber, Raja G. Duddu, MaoXi Zhang, Paritosh R. Dave
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Publication number: 20070104634Abstract: In the present invention a process for the preparation of sodium silicate from Kimberlite tailing generated as solid waste during diamond mining is disclosed.Type: ApplicationFiled: March 14, 2006Publication date: May 10, 2007Inventors: Raksh Jasra, Hari Bajaj, Rajesh Somani, Haresh Mody, Jatin Chunawala, Devendra Ghelani, Hemal Ranpara, Dipti Barochiya, Suresh Chandra, M. Dhar, C. Rao, Kamlesh Kumar
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Patent number: 7207051Abstract: An optical disk physical has a recording region divided into zones, each zone including physical tracks adjacent to each other. An integer number of sectors are provided in each physical track. The angular recording density is higher in the more outward zones such that the linear recording density is substantially constant throughout the recording region, and logical tracks are formed of a predetermined number of sectors, independent of the physical tracks. The conversion between the logical track and sector addresses read from the disk and the linear logical addresses supplied from a host device is easy. The addresses written in headers of the sectors in the logical track in which data are actually recorded, including substitute sectors used in place of defect sectors, are preferably consecutive to further facilitate the conversion between the logical track and sector addresses read from the disk and the linear logical addresses supplied from the host device.Type: GrantFiled: August 28, 2006Date of Patent: April 17, 2007Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Kyosuke Yoshimoto, M. C. Rao, Hiroyuki Ohata, Kazuhiko Nakane, Teruo Furukawa, Junichi Kondo, Masafumi Ototake
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Publication number: 20070025606Abstract: An automated method and system for method and system for indexing, storing and searching medical images using indexed anatomical structures of interest. The method and system provides automated screening of medical images using anatomical structures of interest using a pre-determined hierarchical indexing and searching scheme.Type: ApplicationFiled: July 26, 2006Publication date: February 1, 2007Applicant: Bioimagene, Inc.Inventors: Abhijeet Gholap, Aparna Joshi, C. Rao, Gauri Naik, Prithviraj Jadhav, Satyakam Sawaimoon
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Publication number: 20070019854Abstract: A method and system method and system automated digital image analysis of prostrate neoplasms using morphologic patterns. The method and system provide automated screening of prostate needle biopsy specimens in a digital image and automated diagnosis of prostatectomy specimens.Type: ApplicationFiled: May 10, 2006Publication date: January 25, 2007Applicant: Bioimagene, Inc.Inventors: Abhijeet Gholap, Gauri Naik, Aparna Joshi, Satyakam Sawaimoon, Chivate Siddheshwar, Prithviraj Jadhav, C. Rao
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Patent number: 7144592Abstract: A method of making a fully hop flavored beverage employs a hop flavoring agent comprising an extract of hop solids, the hop solids being the residue of a first extraction of hops to remove the alpha acids. Preferably, liquid carbon dioxide is used for the first extraction of the hops and a polar solvent, such as ethanol or water, is used to extract the hop solids. Beverages made by the method and novel compositions for use in the method are also disclosed.Type: GrantFiled: March 9, 2005Date of Patent: December 5, 2006Assignee: Nissan Technical Center North AmericaInventors: Sydney R. Rader, Matthew L. Tripp, Patrick L. Ting, Vinod K. Chaudhary, Henry Goldstein, Robert J. Mizerak, Subba C. Rao, David S. Ryder, Regina Wilkinson, legal representative, Hetvin A. Wilkinson, deceased
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Patent number: 7109359Abstract: The invention relates to a novel polyazido compound: 2,2-dinitro-1,3-diazidopropane.Type: GrantFiled: August 15, 2003Date of Patent: September 19, 2006Assignee: The United States of America represented by the Secretary of the ArmyInventors: Paritosh R. Dave, Raja G. Duddu, Reddy Damavarapu, Nathaniel Gelber, Kathy Yang, C. Rao Surapaneni
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Patent number: 6998485Abstract: The compound 3a,8a-bis-azidomethyl-3a,4,8a,9-tetrahydro-3H,8H-bis-[1,2,3]triazolo[1,5-a;1?,5?-d]pyrazine, whose structure is depicted below, is disclosed:Type: GrantFiled: August 15, 2003Date of Patent: February 14, 2006Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Paritosh R. Dave, Raja G. Duddu, Reddy Damavarapu, Nathaniel Gelber, Kathy Yang, C. Rao Surapaneni
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Publication number: 20060014238Abstract: A method and system for automated detection of immunohistochemical (IHC) patterns. The method and system is able to automatically differentiate an epithelial cell part from a non-epithelial cell part of a digital image of a tissue sample to which an IHC compound has been applied. The method and system help to automatically correct errors made in a manual interpretation of a pathological or other manual analysis of tissue samples for diseases such as a human cancer.Type: ApplicationFiled: March 27, 2005Publication date: January 19, 2006Applicant: Bioimagene, Inc.Inventors: Abhijeet Gholap, Gauri Gholap, C. Rao, Sanford Barsky, Madhura Vipra, Gurunath Kamble, Suhas Patil, Prithviraj Jadhav
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Publication number: 20060015262Abstract: A method and system for automated quantitation of tissue micro-array image (TMA) digital analysis. The method and system automatically analyze a digital image of a TMA with plural TMA cores created using a needle to biopsy or other techniques to create standard histologic sections and placing the resulting needle cores into TMA. The automated analysis allows a medical conclusion such as a medical diagnosis or medical prognosis (e.g., for a human cancer) to be automatically determined. The method and system provides reliable automatic TMA core gridding and automated TMA core boundary detection including detection of overlapping or touching TMA cores on a grid.Type: ApplicationFiled: May 19, 2005Publication date: January 19, 2006Inventors: Abhijeet Gholap, Gauri Gholap, Prithviraj Jadhav, Sanford Barsky, C. Rao, Madhura Vipra
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Publication number: 20050266395Abstract: A method and system for morphology based mitosis identification and classification of digital images. Luminance parameters such as intensity, etc. from a digital image of a biological sample (e.g., tissue cells) to which a chemical compound (e.g., a marker dye) has been applied are analyzed and corrected if necessary. Morphological parameters (e.g., size, elongation ratio, parallelism, boundary roughness, convex hull shape, etc.) from individual components within the biological sample are analyzed. A medical conclusion (e.g., type and count of mitotic cells) or a life science and biotechnology experiment conclusion is determined from the analyzed luminance and morphological parameters. The method and system may be used to develop applications for automatically obtaining a medical diagnosis (e.g., a carcinoma diagnosis).Type: ApplicationFiled: January 31, 2005Publication date: December 1, 2005Applicant: Bioimagene, Inc.Inventors: Abhijeet Gholap, Gauri Gholap, C. Rao, Sanford Barsky, Madhura Vipra, Suhas Patil, Prithviraj Jadhav, Jayant Abhyankar
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Publication number: 20050265588Abstract: A method and system for automated digital fluorescent in situ hybridization (FISH) image analysis. Luminance parameters from a digital image of a biological tissue sample to which a fluorescent compound (e.g., LSI-HER-2/neu and CEP-17 dyes) have been applied are analyzed to determine plural regions of interest. Fluorescent color signals in the plural regions of interest including plural cell nuclei are identified, classified and grouped into plural groups. Each of the plural groups is validated based on pre-defined conditions. A medical diagnosis or prognosis or medical, life science or biotechnology experiment conclusion determined using a count of plural ratios of validated fluorescent color signals within each of the cell nuclei within the plural groups.Type: ApplicationFiled: February 3, 2005Publication date: December 1, 2005Applicant: Bioimagene, Inc.Inventors: Abhijeet Gholap, Gauri Gholap, C. Rao, Madhura Vipra, Deepak Pardeshi, Prithviraj Jadhav, Jayant Abhyankar
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Patent number: 6965042Abstract: The compound 2,2-bis(azidomethyl)oxirane, whose structure is depicted below, is disclosed:Type: GrantFiled: August 15, 2003Date of Patent: November 15, 2005Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Paritosh R. Dave, Raja G. Duddu, Nathaniel Gelber, Kathy Yang, C. Rao Surapaneni, Reddy Damavarapu
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Publication number: 20050136549Abstract: A method and system for automatically determining diagnostic saliency of digital images for medical and/or pathological purposes. Luminance parameters (e.g. intensity, etc.) from a digital image of a biological sample (e.g., tissue cells) to which a chemical compound (e.g., a marker dye) has been applied are automatically analyzed and automatically corrected if necessary. Morphological parameters (e.g., cell membrane, cell nucleus, mitotic cells, etc.) from individual components within the biological sample are automatically analyzed on the digital image. A medical conclusion (e.g., a medical diagnosis or prognosis) is automatically determined from the analyzed luminance and morphological parameters.Type: ApplicationFiled: October 15, 2004Publication date: June 23, 2005Applicant: Bioimagene, Inc.Inventors: Abhijeet Gholap, Gauri Gholap, C. Rao, Sanford Barsky, Prithviraj Jadhav, Jayant Abhyankar, Madhura Vipra
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Patent number: 6898034Abstract: A method of measuring fly height of a read/write head to form a fly height profile for use in measuring fly height of the read/write head relative to a disc of a disc drive. A fixed source write signal is applied to an inductive element of the read/write head, generating a magnetic flux field with a stray magnetic flux field portion. A magnetoresistive element of the read/write head couples with the magnetic flux field producing an initial field strength signal. As the disc rotates, the read/write head flies there above decreasing the density of the stray magnetic flux field portion thereby decreasing the amplitude of the field strength signal. The decreasing amplitude of the field strength signal is calibrated to a predetermined operating fly height profile to correlate fly height of the read/write head to the decreasing amplitude of the field strength field, which forms the fly height profile.Type: GrantFiled: March 27, 2002Date of Patent: May 24, 2005Assignee: Seagate Technology LLCInventors: Housan Dakroub, Mukund C. Rao, Alfredo Gay Sam
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Publication number: 20050105422Abstract: An optical disk physical has a recording region divided into zones, each zone including physical tracks adjacent to each other. An integer number of sectors are provided in each physical track. The angular recording density is higher in the more outward zones such that the linear recording density is substantially constant throughout the recording region, and logical tracks are formed of a predetermined number of sectors, independent of the physical tracks. The conversion between the logical track and sector addresses read from the disk and the linear logical addresses supplied from a host device is easy. The addresses written in headers of the sectors in the logical track in which data are actually recorded, including substitute sectors used in place of defect sectors, are preferably consecutive to further facilitate the conversion between the logical track and sector addresses read from the disk and the linear logical addresses supplied from the host device.Type: ApplicationFiled: September 28, 2004Publication date: May 19, 2005Inventors: Kyosuke Yoshimoto, M. C. Rao, Hiroyuki Ohata, Kazuhiko Nakane, Teruo Furukawa, Junichi Kondo, Masafumi Ototake
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Patent number: 6853611Abstract: An optical disk physical has a recording region divided into zones, each zone including physical tracks adjacent to each other. An integer number of sectors are provided in each physical track. The angular recording density is higher in the more outward zones such that the linear recording density is substantially constant throughout the recording region, and logical tracks are formed of a predetermined number of sectors, independent of the physical tracks. The conversion between the logical track and sector addresses read from the disk and the linear logical addresses supplied from a host device is easy. The addresses written in headers of the sectors in the logical track in which data are actually recorded, including substitute sectors used in place of defect sectors, are preferably consecutive to further facilitate the conversion between the logical track and sector addresses read from the disk and the linear logical addresses supplied from the host device.Type: GrantFiled: August 5, 2003Date of Patent: February 8, 2005Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Kyosuke Yoshimoto, M. C. Rao, Hiroyuki Ohata, Kazuhiko Nakane, Teruo Furukawa, Junichi Kondo, Masafumi Ototake
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Patent number: 6841690Abstract: This invention relates to a series of novel compounds having the general structures A and B: including 2-azido-2-azidomethyl-1,3-diazidopropane (1), 2-azidomethyl-2-hydroxy-1,3-diazidopropane (2), 2-azidomethyl-2-nitrato-1,3-diazidopropane (3), 2-azidomethyl-2-nitro-1,3-diazidopropane (4), 2,2-dinitro-1,3-diazidopropane (5), methallyidiazide (6), a dimer of methallyidiazide (6), comprising 3a,8a-Bis-azidomethyl-3a,4,8a,9-tetrahydro-3H,8H-bis[1,2,3]triazolo[1,5-a;1?,5?-d]pyrazine (6-Dimer), 1,3-diazidoacetone (7), and 2-Oximido-1,3-diazidopropane (8). Also shown are reaction intermediates of these compounds, including 2,2-bis(chloromethyl)oxirane (9), and 2,2-bis(azidomethyl)oxirane (10).Type: GrantFiled: August 15, 2003Date of Patent: January 11, 2005Assignee: The United States of America, as represented by the Secretary of the ArmyInventors: Paritosh R. Dave, Raja G. Duddu, Reddy Damavarapu, Nathaniel Gelber, Kathy Yang, C. Rao Surapaneni
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Patent number: 6834033Abstract: An optical disk physical has a recording region divided into zones, each zone including physical tracks adjacent to each other. An integer number of sectors, are provided in each physical track. The angular recording density is higher in the more outward zones such that the linear recording density is substantially constant throughout the recording region, and logical tracks are formed of a predetermined number of sectors, independent of the physical tracks. The conversion between the logical track and sector addresses read from the disk and the linear logical addresses supplied from a host device is easy. The addresses written in headers of the sectors in the logical track in which data are actually recorded, including substitute sectors used in place of defect sectors, are preferably consecutive to further facilitate the conversion between the logical track and sector addresses read from the disk and the linear logical addresses supplied from the host device.Type: GrantFiled: August 5, 2003Date of Patent: December 21, 2004Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Kyosuke Yoshimoto, M. C. Rao, Hiroyuki Ohata, Kazuhiko Nakane, Teruo Furukawa, Junichi Kondo, Masafumi Ototake
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Patent number: 6775220Abstract: An optical disk physical has a recording region divided into zones, each zone including physical tracks adjacent to each other. An integer number of sectors, are provided in each physical track. The angular recording density is higher in the more outward zones such that the linear recording density is substantially constant throughout the recording region, and logical tracks are formed of a predetermined number of sectors, independent of the physical tracks. The conversion between the logical track and sector addresses read from the disk and the linear logical addresses supplied from a host device is easy. The addresses written in headers of the sectors in the logical track in which data are actually recorded, including substitute sectors used in place of defect sectors, are preferably consecutive to further facilitate the conversion between the logical track and sector addresses read from the disk and the linear logical addresses supplied from the host device.Type: GrantFiled: August 27, 2002Date of Patent: August 10, 2004Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Kyosuke Yoshimoto, M. C. Rao, Hiroyuki Ohata, Kazuhiko Nakane, Teruo Furukawa, Junichi Kondo, Masafumi Ototake