Patents by Inventor Toshihiro Morisawa

Toshihiro Morisawa 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: 11062274
    Abstract: Various failure rates are supposed for each facility, and an optimal maintenance plan is made. A maintenance planning apparatus includes a failure rate model generation unit that generates a failure rate model on the basis of failure probability information which is set for an O&M asset by a user, a simulation execution unit that executes simulation regarding a failure which possibly occurs in the O&M asset in a plurality of different conditions on the basis of the generated failure rate model, a KPI computation unit that computes a KPI corresponding to each of the plurality of different conditions on the basis of results of the simulation, and an analysis unit that analyzes the plurality of different conditions and KPIs respectively corresponding to the plurality of different conditions, so as to determine an optimal condition corresponding to the best KPI.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: July 13, 2021
    Assignee: HITACHI, LTD.
    Inventors: Toshihiro Morisawa, Yasuharu Namba, Toshiyuki Ukai, Naohiro Suzuki
  • Publication number: 20200371513
    Abstract: A maintenance process flow for a plant is automatically generated based on a prediction result of a life of a pipe. A maintenance process flow generation device configured to generate a maintenance process flow for a plant including a plurality of pipes and a plurality of machines as elements, specifies a target pipe, extracts a maintenance range that is a combination of the elements as maintenance targets, determines necessity of a process required for maintenance on the plurality of elements that can be collectively maintained, generates a process flow defining an order relationship of processes executed in the maintenance of the target plant based on a result of the process necessity determination and master process flow information, evaluates workability of the process included in the process flow, calculates work time of the process flow based on a result of the workability evaluation, and outputs information presenting the maintenance range, the process flow and the work time.
    Type: Application
    Filed: March 20, 2020
    Publication date: November 26, 2020
    Inventors: Toshihiro MORISAWA, Yoshinari HORI, Yasuharu NAMBA, Toshiyuki UKAI
  • Publication number: 20200020003
    Abstract: The disclosure can evaluate a relation between a procurement cost and an inventory value of a component on the basis of a future manufacturing plan, and select a more appropriate ordering mode. A device includes: a product design allocation unit configured to allocate a predetermined design pattern to a product constituent element at a predetermined application rate which is based on a future design plan; a procurement cost computation unit configured to compute, for each ordering mode, a procurement cost of a component which is used in the product constituent element; an inventory value computation unit configured to compute, for each ordering mode, an inventory value of the component; and an ordering mode evaluation unit configured to evaluate a ratio of the procurement cost and the inventory value.
    Type: Application
    Filed: September 26, 2017
    Publication date: January 16, 2020
    Inventors: Masataka TANAKA, Toshihiro MORISAWA, Hiroyuki YANAHIRA, Hiroyuki SEYA
  • Publication number: 20190236556
    Abstract: Various failure rates are supposed for each facility, and an optimal maintenance plan is made. A maintenance planning apparatus includes a failure rate model generation unit that generates a failure rate model on the basis of failure probability information which is set for an O&M asset by a user, a simulation execution unit that executes simulation regarding a failure which possibly occurs in the O&M asset in a plurality of different conditions on the basis of the generated failure rate model, a KPI computation unit that computes a KPI corresponding to each of the plurality of different conditions on the basis of results of the simulation, and an analysis unit that analyzes the plurality of different conditions and KPIs respectively corresponding to the plurality of different conditions, so as to determine an optimal condition corresponding to the best KPI.
    Type: Application
    Filed: December 18, 2018
    Publication date: August 1, 2019
    Inventors: Toshihiro MORISAWA, Yasuharu NAMBA, Toshiyuki UKAI, Naohiro SUZUKI
  • Patent number: 10262840
    Abstract: A plasma processing apparatus including: a monitor device which monitors a process quantity generated at plasma processing; a monitor value estimation unit which has monitor quantity variation models for storing change of a monitor value of the process quantity in accordance with the number of processed specimens and which estimates a monitor value for a process of a next specimen by referring to the monitor quantity variation models; and a control quantity calculation unit which stores a relation between a control quantity for controlling the process quantity of the vacuum processing device and a monitor value and which calculates the control quantity based on a deviation of the estimated monitor value from a target value to thereby control the process quantity for the process of the next specimen. Thus, stable processed results can be obtained even when variation occurs in processes.
    Type: Grant
    Filed: May 29, 2014
    Date of Patent: April 16, 2019
    Assignee: HITACHI HIGH-TECHNOLOGIES CORPORATION
    Inventors: Akira Kagoshima, Daisuke Shiraishi, Satomi Inoue, Shigeru Nakamoto, Shoji Ikuhara, Toshihiro Morisawa
  • Publication number: 20170357925
    Abstract: A production plan making assistance apparatus for a product including a plurality of components, the production plan making assistance apparatus comprising: a storage unit; an input-output unit; and an operation unit; wherein the operation unit reads out the information stored in the storage unit and assigns a start date and a completion date in each process based on a process in which consumption of the production resource lies within the production ability and which synchronizes with the lead time, and wherein the operation unit specifies the completion date assigned to each previous process in a plurality of synchronizing processes, specifies a start date assigned to the process continuing to the specified completion date, calculates a total period between the specified completion date and the specified start date as a total non-synchronization degree and outputs the calculated total non-synchronization degree to the input-output unit.
    Type: Application
    Filed: June 7, 2017
    Publication date: December 14, 2017
    Inventors: Masataka TANAKA, Hisaya ISHIBASHI, Toshihiro MORISAWA, Kouichirou HARO, Hiroyuki SEYA
  • Patent number: 9110461
    Abstract: Semiconductor manufacturing equipment includes: a controller controlling driving and processes of various parts of the semiconductor manufacturing equipment, and a sensor monitoring each physical amount in the semiconductor manufacturing equipment or a status of each chemical response amount; a database; and an arithmetic section executing: processing of reading out equipment data, calculating a correlation matrix between time points based on a plurality of pieces of signal data to be compared, calculating eigen values and eigen vectors from the correlation matrix, and calculating principal component scores by principal component analysis; processing of comparing magnitudes of the eigen values of the principal components, arranging the eigen values in descending order to display a list thereof; and processing of displaying a scatter diagram where the principal component scores of the respective signals are plotted in a feature space selecting the principal component corresponding to the eigen value having a c
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: August 18, 2015
    Assignee: HITACHI HIGH-TECHNOLOGIES CORPORATION
    Inventors: Toshihiro Morisawa, Daisuke Shiraishi, Satomi Inoue, Akira Kagoshima
  • Patent number: 8992721
    Abstract: A plasma processing apparatus including: a monitor device which monitors a process quantity generated at plasma processing; a monitor value estimation unit which has monitor quantity variation models for storing change of a monitor value of the process quantity in accordance with the number of processed specimens and which estimates a monitor value for a process of a next specimen by referring to the monitor quantity variation models; and a control quantity calculation unit which stores a relation between a control quantity for controlling the process quantity of the vacuum processing device and a monitor value and which calculates the control quantity based on a deviation of the estimated monitor value from a target value to thereby control the process quantity for the process of the next specimen.
    Type: Grant
    Filed: January 29, 2010
    Date of Patent: March 31, 2015
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Akira Kagoshima, Daisuke Shiraishi, Satomi Inoue, Shigeru Nakamoto, Shoji Ikuhara, Toshihiro Morisawa
  • Patent number: 8924001
    Abstract: Based on a model for determining optical emission intensity values Y at wavelengths from actuator values X of an etching apparatus, X is calculated from Y to achieve preferable Run-to-Run control over Y. A relation between X and Y is defined as a control model (matrix model C1, ratio-constraint model C2) based on an algebraical expression with ?X as an input and ?Y as an output. In etching process control, ?X (manipulated volume) is calculated from ?Y (controlled volume) using the control model, based on a non-control optical emission intensity value Y, to set X (S1) for the etching process, during which Y is monitored. Based on an actual value for Y, a non-control optical emission intensity value Y to be used in the next wafer etching process is calculated.
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: December 30, 2014
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Toshihiro Morisawa, Daisuke Shiraishi, Satomi Inoue, Akira Kagoshima
  • Publication number: 20140277626
    Abstract: A plasma processing apparatus including: a monitor device which monitors a process quantity generated at plasma processing; a monitor value estimation unit which has monitor quantity variation models for storing change of a monitor value of the process quantity in accordance with the number of processed specimens and which estimates a monitor value for a process of a next specimen by referring to the monitor quantity variation models; and a control quantity calculation unit which stores a relation between a control quantity for controlling the process quantity of the vacuum processing device and a monitor value and which calculates the control quantity based on a deviation of the estimated monitor value from a target value to thereby control the process quantity for the process of the next specimen.
    Type: Application
    Filed: May 29, 2014
    Publication date: September 18, 2014
    Applicant: HITACHI HIGH-TECHNOLOGIES CORPORATION
    Inventors: Akira KAGOSHIMA, Daisuke SHIRAISHI, Satomi INOUE, Shigeru NAKAMOTO, Shoji IKUHARA, Toshihiro MORISAWA
  • Patent number: 8486290
    Abstract: There is provided an etching apparatus in which, without setting the information of the substance and the chemical reaction, a small number of representative wavelengths can be selected from a waveform at a lot of wavelengths, and an analysis process of etching data which needs large man-hours can be eliminated to efficiently set the monitoring of the etching.
    Type: Grant
    Filed: November 20, 2009
    Date of Patent: July 16, 2013
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Toshihiro Morisawa, Daisuke Shiraishi, Satomi Inoue
  • Publication number: 20130173042
    Abstract: Semiconductor manufacturing equipment includes: a controller controlling driving and processes of various parts of the semiconductor manufacturing equipment, and a sensor monitoring each physical amount in the semiconductor manufacturing equipment or a status of each chemical response amount; a database; and an arithmetic section executing: processing of reading out equipment data, calculating a correlation matrix between time points based on a plurality of pieces of signal data to be compared, calculating eigen values and eigen vectors from the correlation matrix, and calculating principal component scores by principal component analysis; processing of comparing magnitudes of the eigen values of the principal components, arranging the eigen values in descending order to display a list thereof; and processing of displaying a scatter diagram where the principal component scores of the respective signals are plotted in a feature space selecting the principal component corresponding to the eigen value having a c
    Type: Application
    Filed: September 13, 2012
    Publication date: July 4, 2013
    Inventors: Toshihiro Morisawa, Daisuke Shiraishi, Satomi Inoue, Akira Kagoshima
  • Patent number: 8367431
    Abstract: In a manufacturing method of a semiconductor photonic device substrate, before multi-layer films different in material composition are successively and gradually crystal-grown in one chamber, an inter-layer growth rate model showing a relation in growth rate between each layer is defined, a growth rate of a film corresponding to at least one or more layers is obtained by actual crystal growth using an individual substrate, a growth rate of a film corresponding to other layers is estimated from the obtained growth rate by the inter-layer growth rate model, and a growth time is determined in accordance with a film thickness of each layer of the semiconductor photonic device substrate based on the actually obtained growth rate and the estimated growth rate. These steps are carried out by using a computer system connected to an MOCVD equipment, and then, a crystal growth of the semiconductor photonic device substrate is performed.
    Type: Grant
    Filed: April 23, 2010
    Date of Patent: February 5, 2013
    Assignee: Hitachi Cable, Ltd.
    Inventors: Toshihiro Morisawa, Takehiko Tani, Hisataka Nagai, Takashi Furuya
  • Publication number: 20120310403
    Abstract: Based on a model for determining optical emission intensity values Y at wavelengths from actuator values X of an etching apparatus, X is calculated from Y to achieve preferable Run-to-Run control over Y. A relation between X and Y is defined as a control model (matrix model C1, ratio-constraint model C2) based on an algebraical expression with ?X as an input and ?Y as an output. In etching process control, ?X (manipulated volume) is calculated from ?Y (controlled volume) using the control model, based on a non-control optical emission intensity value Y, to set X (S1) for the etching process, during which Y is monitored. Based on an actual value for Y, a non-control optical emission intensity value Y to be used in the next wafer etching process is calculated.
    Type: Application
    Filed: December 3, 2010
    Publication date: December 6, 2012
    Inventors: Toshihiro Morisawa, Daisuke Shiraishi, Satomi Inoue, Akira Kagoshima
  • Patent number: 8282849
    Abstract: An etching process state judgment method comprising: a spectral data obtaining step, in which an optical emission spectrum distribution is obtained by monitoring optical emission during an etching process of a plurality of wafers; a peak detection step, in which peaks are detected from the optical emission spectrum distribution at a specific time point during the etching process, to obtain peak characteristics; a common peak identifying step, in which peaks common to the wafers are identified among the peaks detected in the peak detection step; and a state detection step, in which the characteristics are compared regarding the common peaks, to detect a state of each wafer in the etching process. A state (anomaly or normalcy) of an etching process is detected from optical emission spectrum distribution at the time of etching process, by a simple method without assuming substances.
    Type: Grant
    Filed: April 3, 2009
    Date of Patent: October 9, 2012
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Toshihiro Morisawa, Shoji Ikuhara, Akira Kagoshima, Daisuke Shiraishi
  • Publication number: 20110315661
    Abstract: There is provided an etching apparatus in which, without setting the information of the substance and the chemical reaction, a small number of representative wavelengths can be selected from a waveform at a lot of wavelengths, and an analysis process of etching data which needs large man-hours can be eliminated to efficiently set the monitoring of the etching.
    Type: Application
    Filed: November 20, 2009
    Publication date: December 29, 2011
    Inventors: Toshihiro Morisawa, Daisuke Shiraishi, Satomi Inoue
  • Publication number: 20110083808
    Abstract: A plasma processing apparatus including: a monitor device which monitors a process quantity generated at plasma processing; a monitor value estimation unit which has monitor quantity variation models for storing change of a monitor value of the process quantity in accordance with the number of processed specimens and which estimates a monitor value for a process of a next specimen by referring to the monitor quantity variation models; and a control quantity calculation unit which stores a relation between a control quantity for controlling the process quantity of the vacuum processing device and a monitor value and which calculates the control quantity based on a deviation of the estimated monitor value from a target value to thereby control the process quantity for the process of the next specimen.
    Type: Application
    Filed: January 29, 2010
    Publication date: April 14, 2011
    Inventors: Akira KAGOSHIMA, Daisuke Shiraishi, Satomi Inoue, Shigeru Nakamoto, Shoji Ikuhara, Toshihiro Morisawa
  • Publication number: 20110003413
    Abstract: In a manufacturing method of a semiconductor photonic device substrate, before multi-layer films different in material composition are successively and gradually crystal-grown in one chamber, an inter-layer growth rate model showing a relation in growth rate between each layer is defined, a growth rate of a film corresponding to at least one or more layers is obtained by actual crystal growth using an individual substrate, a growth rate of a film corresponding to other layers is estimated from the obtained growth rate by the inter-layer growth rate model, and a growth time is determined in accordance with a film thickness of each layer of the semiconductor photonic device substrate based on the actually obtained growth rate and the estimated growth rate. These steps are carried out by using a computer system connected to an MOCVD equipment, and then, a crystal growth of the semiconductor photonic device substrate is performed.
    Type: Application
    Filed: April 23, 2010
    Publication date: January 6, 2011
    Inventors: Toshihiro Morisawa, Takehiko Tani, Hisataka Nagai, Takashi Furuya
  • Patent number: 7809459
    Abstract: An advanced process control (APC) system. The APC system comprises a database for receiving process data from a measurement tool for a plurality of process runs and for storing the process data. A lambda tuner determines a tuned-lambda value corresponding to a process-capability-index value based on upper and lower process control limits and statistics derived from the process data. A process-run controller updates a recipe value based on the received process data and the tuned-lambda value.
    Type: Grant
    Filed: December 31, 2007
    Date of Patent: October 5, 2010
    Assignee: Hitachi Global Technologies Netherlands B.V.
    Inventors: Toshihiro Morisawa, Andrew C. Walker, Yeak-Chong Wong
  • Publication number: 20090253222
    Abstract: An etching process state judgment method comprising: a spectral data obtaining step, in which an optical emission spectrum distribution is obtained by monitoring optical emission during an etching process of a plurality of wafers; a peak detection step, in which peaks are detected from the optical emission spectrum distribution at a specific time point during the etching process, to obtain peak characteristics; a common peak identifying step, in which peaks common to the wafers are identified among the peaks detected in the peak detection step; and a state detection step, in which the characteristics are compared regarding the common peaks, to detect a state of each wafer in the etching process. A state (anomaly or normalcy) of an etching process is detected from optical emission spectrum distribution at the time of etching process, by a simple method without assuming substances.
    Type: Application
    Filed: April 3, 2009
    Publication date: October 8, 2009
    Inventors: Toshihiro Morisawa, Shoji Ikuhara, Akira Kagoshima, Daisuke Shiraishi