Patents by Inventor Jiri Navratil

Jiri Navratil 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: 11837415
    Abstract: A solid electrolytic capacitor comprising a capacitor element, anode lead extending from a surface of the capacitor element, an anode termination that is in electrical connection with the anode lead, a cathode termination that is in electrical connection with the solid electrolyte, and a casing material that encapsulates the capacitor element and anode lead is provided. A barrier coating is disposed on at least a portion of the capacitor element and is in contact with the casing material. The coating contains a polymeric material that includes a fluorinated component and a non-fluorinated component. The polymeric material has a glass transition temperature of from about 10° C. to about 120° C. and a thermal decomposition temperature of about 200° C. to about 300° C.
    Type: Grant
    Filed: January 7, 2022
    Date of Patent: December 5, 2023
    Assignee: KYOCERA AVX Components Corpration
    Inventors: Jan Petrzilek, Hiromasa Noborio, Jiri Navratil, Junichi Murakami
  • Patent number: 11676075
    Abstract: A computer-implemented method, a computer program product, and a system for reducing labeled sample quantities required to update test sets. The computer-implemented method includes inputting a portion of unlabeled production data into a base model and generating labeled output relating to the unlabeled production data. The computer-implemented method also includes inputting the labeled output into a performance predictor. The performance predictor is a meta model of the base model that is trained with another portion of the unlabeled production data, a training set used to train the base model, and a test set portioned from the training set. The computer-implemented method further includes outputting, by the performance predictor, a performance metric relating to the labeled output produced by the trained base model. The performance metric can be any metric capable of measuring the output performance of the base model.
    Type: Grant
    Filed: May 6, 2020
    Date of Patent: June 13, 2023
    Assignee: International Business Machines Corporation
    Inventors: Jiri Navratil, Matthew Richard Arnold, Begum Taskazan, Benjamin Tyler Elder
  • Patent number: 11487650
    Abstract: A computer-implemented method, a computer program product, and a computer system for diagnosing anomalies detected by a black-box machine learning model. A computer determines a local variance of a test sample in a test dataset, where the local variance represents uncertainty of a prediction by the black-box machine learning model. The computer initializes optimal compensations for the test sample, where the optimal compensations are optimal perturbations to test sample values of respective components of a multivariate input variable. The computer determines local gradients for the test sample. Based on the local variance and the local gradients, the computer updates the optimal compensations until convergences of the optimal compensations are reached. Using the optimal compensations, the computer diagnoses the anomalies detected by the black-box machine learning model.
    Type: Grant
    Filed: May 22, 2020
    Date of Patent: November 1, 2022
    Assignee: International Business Machines Corporation
    Inventors: Tsuyoshi Ide, Amit Dhurandhar, Jiri Navratil, Naoki Abe, Moninder Singh
  • Patent number: 11404220
    Abstract: A solid electrolytic capacitor comprising a capacitor element, anode lead extending from a surface of the capacitor element, an anode termination that is in electrical connection with the anode lead, a cathode termination that is in electrical connection with the solid electrolyte, and a casing material that encapsulates the capacitor element and anode lead is provided. A barrier coating is disposed on at least a portion of the anode termination and/or cathode termination and is in contact with the casing material. The coating contains a hydrophobic resinous material that includes an olefin polymer having a glass transition temperature of from about 20° C. to about 160° C.
    Type: Grant
    Filed: September 18, 2020
    Date of Patent: August 2, 2022
    Assignee: KYOCERA AVX Components Corporation
    Inventors: Jiri Navratil, Jan Petrzilek, Miloslav Uher
  • Publication number: 20220230815
    Abstract: A solid electrolytic capacitor comprising a capacitor element, anode lead extending from a surface of the capacitor element, an anode termination that is in electrical connection with the anode lead, a cathode termination that is in electrical connection with the solid electrolyte, and a casing material that encapsulates the capacitor element and anode lead is provided. A barrier coating is disposed on at least a portion of the capacitor element and is in contact with the casing material. The coating contains a polymeric material that includes a fluorinated component and a non-fluorinated component. The polymeric material has a glass transition temperature of from about 10° C. to about 120° C. and a thermal decomposition temperature of about 200° C. to about 300° C.
    Type: Application
    Filed: January 7, 2022
    Publication date: July 21, 2022
    Inventors: Jan Petrzilek, Hiromasa Noborio, Jiri Navratil, Junichi Murakami
  • Publication number: 20220172109
    Abstract: A computer implemented method of performing large-scale machine learning experiments includes expanding on one or more input datasets by systematically generating several data set drift splits. A set of experimental jobs corresponding to the generated data set drift splits are executed to generate experimental results. The experimental results are processed, consolidated, and clustered according to the generated data set drift splits.
    Type: Application
    Filed: December 2, 2020
    Publication date: June 2, 2022
    Inventors: Evelyn Duesterwald, Anupama Murthi, Michael Hind, Matthew Richard Arnold, Benjamin Tyler Elder, Jiri Navratil
  • Patent number: 11342129
    Abstract: A solid electrolytic capacitor is provided that contains a casing material that encapsulates the capacitor element. The casing material is formed from a curable resinous matrix that has a coefficient of thermal expansion of about 42 ppm/° C. or less at a temperature above the glass transition temperature of the resinous matrix. Further, the capacitor exhibits an initial equivalence series resistance of about 200 mohms or less as determined at an operating frequency of 100 kHz and temperature of 23° C., and the ratio of the equivalence series resistance of the capacitor after being exposed to a temperature of 125° C. for 560 hours to the initial equivalence series resistance of the capacitor is about 2.0 or less.
    Type: Grant
    Filed: June 21, 2019
    Date of Patent: May 24, 2022
    Assignee: KYOCERA AVX Components Corporation
    Inventors: Jiri Navratil, Frantisek Priban, Lotfi Djebara
  • Publication number: 20210365358
    Abstract: A computer-implemented method, a computer program product, and a computer system for diagnosing anomalies detected by a black-box machine learning model. A computer determines a local variance of a test sample in a test dataset, where the local variance represents uncertainty of a prediction by the black-box machine learning model. The computer initializes optimal compensations for the test sample, where the optimal compensations are optimal perturbations to test sample values of respective components of a multivariate input variable. The computer determines local gradients for the test sample. Based on the local variance and the local gradients, the computer updates the optimal compensations until convergences of the optimal compensations are reached. Using the optimal compensations, the computer diagnoses the anomalies detected by the black-box machine learning model.
    Type: Application
    Filed: May 22, 2020
    Publication date: November 25, 2021
    Inventors: Tsuyoshi Ide, Amit Dhurandhar, Jiri Navratil, Naoki Abe, Moninder Singh
  • Publication number: 20210350181
    Abstract: A computer-implemented method, a computer program product, and a system for reducing labeled sample quantities required to update test sets. The computer-implemented method includes inputting a portion of unlabeled production data into a base model and generating labeled output relating to the unlabeled production data. The computer-implemented method also includes inputting the labeled output into a performance predictor. The performance predictor is a meta model of the base model that is trained with another portion of the unlabeled production data, a training set used to train the base model, and a test set portioned from the training set. The computer-implemented method further includes outputting, by the performance predictor, a performance metric relating to the labeled output produced by the trained base model. The performance metric can be any metric capable of measuring the output performance of the base model.
    Type: Application
    Filed: May 6, 2020
    Publication date: November 11, 2021
    Inventors: Jiri Navratil, Matthew Richard Arnold, Begum Taskazan, Benjamin Tyler Elder
  • Publication number: 20210312323
    Abstract: A technique for generating a performance prediction of a machine learning model with uncertainty intervals includes obtaining a first model configured to perform a task and a production dataset. At least one metric predicting a performance of the first model at performing the task on the production dataset is generated using a second model. The second model is a meta-model associated with the first model. At least one value predicting an uncertainty of the at least one metric predicting the performance of the first model at performing the task on the production dataset is generated using a third model. The third model is a meta-meta-model associated with the second model. An indication of the at least one metric and the at least one value is provided.
    Type: Application
    Filed: April 7, 2020
    Publication date: October 7, 2021
    Inventors: Matthew ARNOLD, Benjamin Tyler ELDER, Jiri NAVRATIL, Ganesh VENKATARAMAN
  • Patent number: 11069484
    Abstract: A module of capacitor assemblies is provided. To increase the capacitance and efficiency of the module, capacitor assemblies may be stacked. A variety of aspects of the module are controlled in the present invention, including the number of capacitor assemblies, the manner in which the capacitor assemblies are arranged and incorporated into the module, and the manner in which the capacitor assemblies are formed. For example, the anode terminations of each capacitor assembly are electrically connected and the cathode terminations of each capacitor assembly are electrically connected. The capacitance and efficiency of the module can be improved while maintaining the footprint of a single capacitor assembly.
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: July 20, 2021
    Assignee: AVX Corporation
    Inventors: Miloslav Uher, Jiri Navratil
  • Publication number: 20210082629
    Abstract: A solid electrolytic capacitor comprising a capacitor element, anode lead extending from a surface of the capacitor element, an anode termination that is in electrical connection with the anode lead, a cathode termination that is in electrical connection with the solid electrolyte, and a casing material that encapsulates the capacitor element and anode lead is provided. A barrier coating is disposed on at least a portion of the anode termination and/or cathode termination and is in contact with the casing material. The coating contains a hydrophobic resinous material that includes an olefin polymer having a glass transition temperature of from about 20° C. to about 160° C.
    Type: Application
    Filed: September 18, 2020
    Publication date: March 18, 2021
    Inventors: Jiri Navratil, Jan Petrzilek, Miloslav Uher
  • Patent number: 10915560
    Abstract: A method is provided that includes generating answer-passage pairs, each associated with a respective one of multiple feature vectors. The method includes, for each answer in the pairs, merging the feature vectors associated with any of the pairs that include the answer to obtain a merged answer vector. The method includes, for each passage in the pairs, (i) merging the feature vectors associated with any of the pairs that includes the passage to obtain a merged passage vector, (ii) merging the feature vectors from the merged answer vector for each answer that is associated with the passage via at least one of the pairs to obtain a merged passage-answer vector, and (iii) concatenating the merged passage vector and the merged passage-answer vector to obtain a concatenated passage vector. The method includes ranking the concatenated passage vector for each passage to obtain a ranked list of passages with associated confidence scores.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: February 9, 2021
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Rishav Chakravarti, James W. Murdock, Jiri Navratil
  • Patent number: 10762092
    Abstract: According to one embodiment, a method, computer system, and computer program product for continuously ranking components in a live information is provided. The present embodiment may include receiving search feedback derived from interactions between users and information retrieval systems; assigning weights to each of the ranking components; adjusting the assigned weights based on search feedback; modifying the current set of ranking components based on the search feedback by adding new ranking components and deleting old ranking components; transmitting a query from the users to the current set of ranking components; aggregating ranking results from the transmitted query into a single ranking based on the weights; and transmitting the single ranking to the users.
    Type: Grant
    Filed: August 16, 2017
    Date of Patent: September 1, 2020
    Assignee: International Business Machines Corporation
    Inventors: Rishav Chakravarti, Jiri Navratil, Bowen Zhou
  • Patent number: 10747770
    Abstract: According to one embodiment, a method, computer system, and computer program product for continuously ranking components in a live information is provided. The present embodiment may include receiving search feedback derived from interactions between users and information retrieval systems; assigning weights to each of the ranking components; adjusting the assigned weights based on search feedback; modifying the current set of ranking components based on the search feedback by adding new ranking components and deleting old ranking components; transmitting a query from the users to the current set of ranking components; aggregating ranking results from the transmitted query into a single ranking based on the weights; and transmitting the single ranking to the users.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: August 18, 2020
    Assignee: Internationa Business Machines Corporation
    Inventors: Rishav Chakravarti, Jiri Navratil, Bowen Zhou
  • Publication number: 20190392995
    Abstract: A solid electrolytic capacitor comprising a capacitor element, anode lead extending from a surface of the capacitor element, an anode termination that is in electrical connection with the anode lead, a cathode termination that is in electrical connection with the solid electrolyte, and a casing material that encapsulates the capacitor element and anode lead is provided. An interfacial coating is disposed on at least a portion of the anode termination and/or cathode termination and is in contact with the casing material. The coating contains a hydrophobic resinous material and the adhesion strength of the casing material is about 5 newtons per square millimeter or more as determined at a temperature of about 23° C. and relative humidity of about 30%.
    Type: Application
    Filed: June 19, 2019
    Publication date: December 26, 2019
    Inventors: Jiri Navratil, Lotfi Dejbara, Martin Biler, Jan Petrzilek
  • Publication number: 20190392996
    Abstract: A solid electrolytic capacitor is provided that contains a casing material that encapsulates the capacitor element. The casing material is formed from a curable resinous matrix that has a coefficient of thermal expansion of about 42 ppm/° C. or less at a temperature above the glass transition temperature of the resinous matrix. Further, the capacitor exhibits an initial equivalence series resistance of about 200 mohms or less as determined at an operating frequency of 100 kHz and temperature of 23° C., and the ratio of the equivalence series resistance of the capacitor after being exposed to a temperature of 125° C. for 560 hours to the initial equivalence series resistance of the capacitor is about 2.0 or less.
    Type: Application
    Filed: June 21, 2019
    Publication date: December 26, 2019
    Inventors: Jiri Navratil, Frantisek Priban, Lotfi Djebara
  • Patent number: 10431389
    Abstract: A capacitor element for use in high voltage environments is provided. More particularly, the capacitor element contains an anode that includes a solid electrolyte that overlies an anode. The anode includes a sintered porous pellet and a dielectric layer having a reduced degree of crystallinity formed on a surface of the pellet and within its pores.
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: October 1, 2019
    Assignee: AVX Corporation
    Inventors: Jan Petrzilek, Jiri Navratil
  • Publication number: 20190213503
    Abstract: A computer querying an application programming interface with each of multiple synthetic samples, each of the synthetic samples representing a separate sample assigned an original class from among multiple classes classified by a particular machine learning model and distorted to induce the particular machine learning model to misclassify the separate sample as a different class from among the classes. The computer accumulating, by the computer, a score of a number of results returned by the application programming interface that match an expected class label assignment of the different class for each of the synthetic samples. The computer, in response to the score exceeding a threshold, verifying, by the computer, that a service provided by the application programming interface is running the particular machine learning model.
    Type: Application
    Filed: January 8, 2018
    Publication date: July 11, 2019
    Inventors: Jiri Navratil, James W. Murdock
  • Publication number: 20190213502
    Abstract: A computer accesses a machine learning model and multiple samples, each classified with a separate original class of multiple classes within training data used to train the machine learning model to identify each of the classes. The computer generates multiple synthetic samples, each comprising a sample distorted to induce the machine learning model to misclassify the sample to a different class from the original class. The computer creates a synthetic sample signature, for use in verifying the identity of the machine learning model at runtime, from the synthetic samples and a matrix of returned class labels each identifying one of the classes, determined from actual classifications of each the synthetic samples in response to running the synthetic samples on the machine learning model.
    Type: Application
    Filed: January 8, 2018
    Publication date: July 11, 2019
    Inventors: Jiri Navratil, James W. Murdock