Patents by Inventor Daisuke Oyama
Daisuke Oyama 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: 20240168859Abstract: A software performance verification system extracts a partial code as part of a code of a program configuring software, generates a feature vector based on the partial code, and generates, as a verification result of the partial code, information based on output obtained from a performance verification model through input of the partial code as a verification target to the performance verification model that is a machine learning model having been trained by use of learning data that includes the feature vector of the partial code for learning and performance information indicative of the performance of software implemented on the basis of the partial code. The software performance verification system generates, for example, a feature vector having metrics values acquired from the partial code as the elements of the feature vector. The performance verification model outputs, for example, the probability of there being a problem with a process to be implemented on the basis of the partial code.Type: ApplicationFiled: February 14, 2022Publication date: May 23, 2024Applicant: Hitachi, Ltd.Inventors: Menglong YANG, Kyohei OYAMA, Daisuke SHIMBARA
-
Publication number: 20240144492Abstract: A non-transitory computer-readable storage medium storing therein a position prediction program that causes a computer to execute a process comprising: first calculating, from each of a second positions of a positioning object at a plurality of prediction timings in the past, a third position of the positioning object at a prediction timing; second calculating, on the basis of the second position at a last prediction timing out of the plurality of prediction timings and a first position of the positioning object calculated from image data received from a shooting device after the last prediction timing, a fourth position of the positioning object at the prediction timing; and predicting the second position at the prediction timing on the basis of the third position and the fourth position.Type: ApplicationFiled: October 18, 2023Publication date: May 2, 2024Applicants: Fujitsu Limited, Acuity Inc.Inventors: Daisuke ISHII, Kento IKKAKU, Satoru WADA, Ryoga SUZUKI, Yuma OYAMA, Shimpei SATO
-
Publication number: 20240130654Abstract: A biomagnetic field measurement device to measure a biomagnetic field includes a superconducting quantum interference device (SQUID) sensor, and includes a flux locked loop unit. The SQUID sensor includes an adjustment device configured to adjust a loop gain of the flux locked loop unit.Type: ApplicationFiled: September 5, 2023Publication date: April 25, 2024Inventors: Takashi YASUI, Ryoh MAEDA, Daisuke OYAMA, Yoshiaki ADACHI
-
Publication number: 20220299580Abstract: A magnetic-field measuring apparatus includes a SQUID; and flux-locked loop circuitry including first circuitry that includes an amplifier connected to an output of the SQUID, and second circuitry connected to the first circuitry. The first circuitry is along an inner surface or an outer surface of a shielding material that separates an inside of a magnetically shielded room from an outside of the magnetically shielded room, the magnetically shielded room including the SQUID. The second circuitry is in the outside of the magnetically shielded room.Type: ApplicationFiled: September 24, 2020Publication date: September 22, 2022Applicants: Ricoh Company, Ltd., KANAZAWA INSTITUTE OF TECHNOLOGYInventors: Takashi YASUI, Daisuke OYAMA
-
Patent number: 11398352Abstract: A capacitor component includes a laminate including dielectric layers and internal electrode layers, first and second external electrodes respectively provided on first and second end surfaces of the laminate, and a third external electrode provided on at least one of first and second lateral surfaces of the laminate. The internal electrode layers include a first internal electrode layer connected to the first external electrode and not connected to either the second or the third external electrode; a second internal electrode layer connected to the second external electrode and not connected to either the first or the third external electrode; a third internal electrode layer not connected to any of the first, the second, or the third external electrode; and a fourth internal electrode layer connected to the third external electrode and not connected to either the first or the second external electrode.Type: GrantFiled: July 13, 2020Date of Patent: July 26, 2022Assignee: MURATA MANUFACTURING CO., LTDInventors: Yuji Kobayashi, Tomohiro Sasaki, Yuichiro Tanaka, Daisuke Oyama, Satoshi Ishitobi
-
Patent number: 11385304Abstract: A magnetic field measuring apparatus includes a digital FLL circuit including ADC that converts a periodically changing voltage output from a SQUID according to a change in a magnetic field into a digital value, a digital integrator that integrates the digital value output from the ADC, a DAC that converts an integrated value output from the digital integrator into a voltage, a converter that converts the voltage output from the DAC into a current, and a coil that generates the magnetic field received by the SQUID, based on the current output from the converter. A calculating device calculates a digital value indicating a flux quantum based on the digital value output from the ADC when the ADC converts the periodically changing voltage output from the SQUID upon receiving the magnetic field generated by a current that is obtained by converting a voltage generated by a voltage generator.Type: GrantFiled: October 5, 2020Date of Patent: July 12, 2022Assignees: Ricoh Company, Ltd., KANAZAWA INSTITUTE OF TECHNOLOGYInventors: Takashi Yasui, Daisuke Oyama
-
Publication number: 20210103012Abstract: A magnetic field measuring apparatus includes a digital FLL circuit including ADC that converts a periodically changing voltage output from a SQUID according to a change in a magnetic field into a digital value, a digital integrator that integrates the digital value output from the ADC, a DAC that converts an integrated value output from the digital integrator into a voltage, a converter that converts the voltage output from the DAC into a current, and a coil that generates the magnetic field received by the SQUID, based on the current output from the converter. A calculating device calculates a digital value indicating a flux quantum based on the digital value output from the ADC when the ADC converts the periodically changing voltage output from the SQUID upon receiving the magnetic field generated by a current that is obtained by converting a voltage generated by a voltage generator.Type: ApplicationFiled: October 5, 2020Publication date: April 8, 2021Inventors: Takashi YASUI, Daisuke OYAMA
-
Publication number: 20210027949Abstract: A capacitor component includes a laminate including dielectric layers and internal electrode layers, first and second external electrodes respectively provided on first and second end surfaces of the laminate, and a third external electrode provided on at least one of first and second lateral surfaces of the laminate. The internal electrode layers include a first internal electrode layer connected to the first external electrode and not connected to either the second or the third external electrode; a second internal electrode layer connected to the second external electrode and not connected to either the first or the third external electrode; a third internal electrode layer not connected to any of the first, the second, or the third external electrode; and a fourth internal electrode layer connected to the third external electrode and not connected to either the first or the second external electrode.Type: ApplicationFiled: July 13, 2020Publication date: January 28, 2021Inventors: Yuji KOBAYASHI, Tomohiro SASAKI, Yuichiro TANAKA, Daisuke OYAMA, Satoshi ISHITOBI
-
Patent number: 7248044Abstract: In a SQUID magnetometer, high resolution, a high slew rate, and a high dynamic range are achieved without using expensive circuit components having a large number of processing bits and enabling a high speed processing operation. A digital FLL circuit using a double counter system is provided. This circuit utilizes two or more counters, for example, a change range counter in a digital FLL for carrying out a processing operation at a high speed and a reproducing counter in a control/measuring computer. In addition, in the present invention, hysteresis characteristics having a 1?0 positive margin is used. That is, a change of a state of a magnetic flux is counted by means of a counter. At the time of this change, control is made so as to track a different channel between cases in which a magnetic flux increases and decreases, thereby stabilizing the control.Type: GrantFiled: December 1, 2006Date of Patent: July 24, 2007Assignee: Japan Science and Technology AgencyInventors: Koichiro Kobayashi, Daisuke Oyama, Masahito Yoshizawa, Kenji Nakai, Takayuki Simizu, Tomoaki Ueda
-
Publication number: 20070114994Abstract: In a SQUID magnetometer, high resolution, a high slew rate, and a high dynamic range are achieved without using expensive circuit components having a large number of processing bits and enabling a high speed processing operation. A digital FLL circuit using a double counter system is provided. This circuit utilizes two or more counters, for example, a change range counter in a digital FLL for carrying out a processing operation at a high speed and a reproducing counter in a control/measuring computer. In addition, in the present invention, hysteresis characteristics having a 1?0 positive margin is used. That is, a change of a state of a magnetic flux is counted by means of a counter. At the time of this change, control is made so as to track a different channel between cases in which a magnetic flux increases and decreases, thereby stabilizing the control.Type: ApplicationFiled: December 1, 2006Publication date: May 24, 2007Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCYInventors: Koichiro Kobayashi, Daisuke Oyama, Masahito Yoshizawa, Kenji Nakai, Takayuki Simizu, Tomoaki Ueda