Patents by Inventor Yingyi Wen
Yingyi Wen 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: 11579043Abstract: An information terminal is configured to extract a predetermined frequency band from a waveform of a signal of a machine component detected by a vibration sensor, to compare an analyzed frequency component and a damaging frequency resulting from a damage of the machine component, and to diagnose abnormality of the machine component. The information terminal includes a database in which the damaging frequency resulting from the damage of the machine component is preserved as a converted damaging frequency obtained by converting the damaging frequency on a basis of a predetermined rotating speed of the machine component. The damaging frequency is provided by calculating the converted damaging frequency in the database by using an actual rotating speed of the machine component. Accordingly, it is possible to keep specifications of a machine component confidential without preserving the specifications of the machine component.Type: GrantFiled: December 17, 2019Date of Patent: February 14, 2023Assignee: NSK LTD.Inventors: Takanori Miyasaka, Yoshihiro Sato, Yasushi Muto, Yingyi Wen, Osamu Yoshimatsu
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Publication number: 20200191684Abstract: A vibration analyzer is configured to analyze vibration of a machine component and which is capable of performing an operation on a basis of a signal received from an information terminal and transmitting a signal obtained as a result of the operation to the information terminal. The vibration analyzer includes a vibration sensor configured to detect a vibration of the machine component, a filter processing unit configured to extract a predetermined frequency band from a waveform of a signal detected by the vibration sensor, and a calculation processing unit configured to analyze frequency of a waveform after filter processing obtained by the filter processing unit and to obtain spectrum data. Accordingly, it is possible to reduce a data amount to be transmitted between the analyzer and the information terminal, thereby shortening data transfer time.Type: ApplicationFiled: February 25, 2020Publication date: June 18, 2020Applicant: NSK LTD.Inventors: Takanori MIYASAKA, Yoshihiro SATO, Yasushi MUTO, Yingyi WEN, Osamu YOSHIMATSU
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Publication number: 20200124499Abstract: An information terminal is configured to extract a predetermined frequency band from a waveform of a signal of a machine component detected by a vibration sensor, to compare an analyzed frequency component and a damaging frequency resulting from a damage of the machine component, and to diagnose abnormality of the machine component. The information terminal includes a database in which the damaging frequency resulting from the damage of the machine component is preserved as a converted damaging frequency obtained by converting the damaging frequency on a basis of a predetermined rotating speed of the machine component. The damaging frequency is provided by calculating the converted damaging frequency in the database by using an actual rotating speed of the machine component. Accordingly, it is possible to keep specifications of a machine component confidential without preserving the specifications of the machine component.Type: ApplicationFiled: December 17, 2019Publication date: April 23, 2020Applicant: NSK LTD.Inventors: Takanori MIYASAKA, Yoshihiro SATO, Yasushi MUTO, Yingyi WEN, Osamu YOSHIMATSU
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Publication number: 20190137359Abstract: An information terminal is configured to extract a predetermined frequency band from a waveform of a signal of a machine component detected by a vibration sensor, to compare an analyzed frequency component and a damaging frequency resulting from a damage of the machine component, and to diagnose abnormality of the machine component. The information terminal includes a database in which the damaging frequency resulting from the damage of the machine component is preserved as a converted damaging frequency obtained by converting the damaging frequency on a basis of a predetermined rotating speed of the machine component. The damaging frequency is provided by calculating the converted damaging frequency in the database by using an actual rotating speed of the machine component. Accordingly, it is possible to keep specifications of a machine component confidential without preserving the specifications of the machine component.Type: ApplicationFiled: February 23, 2018Publication date: May 9, 2019Applicant: NSK LTD.Inventors: Takanori MIYASAKA, Yoshihiro SATO, Yasushi MUTO, Yingyi WEN, Osamu YOSHIMATSU
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Publication number: 20190137360Abstract: A vibration analyzer is configured to analyze vibration of a machine component and which is capable of performing an operation on a basis of a signal received from an information terminal and transmitting a signal obtained as a result of the operation to the information terminal. The vibration analyzer includes a vibration sensor configured to detect a vibration of the machine component, a filter processing unit configured to extract a predetermined frequency band from a waveform of a signal detected by the vibration sensor, and a calculation processing unit configured to analyze frequency of a waveform after filter processing obtained by the filter processing unit and to obtain spectrum data. Accordingly, it is possible to reduce a data amount to be transmitted between the analyzer and the information terminal, thereby shortening data transfer time.Type: ApplicationFiled: February 23, 2018Publication date: May 9, 2019Applicant: NSK LTD.Inventors: Takanori MIYASAKA, Yoshihiro SATO, Yasushi MUTO, Yingyi WEN, Osamu YOSHIMATSU
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Patent number: 8998498Abstract: A tapered roller bearing improves durability during a state of insufficient lubrication by sufficiently lengthening the time until rotation becomes impossible due to seizure. Oil retaining concave sections, recessed outward in the radial direction, are formed in portions on the inner circumferential surface of a large-diameter rim section of the retainer whose phase in the circumferential direction coincides with the pockets. A portion of the bottom surface of each of the oil retaining concave sections, open to the inside surface of the pocket, face a concave section formed in an end surface on the large-diameter side of tapered roller that is held inside the pocket. When lubrication becomes insufficient, oil remaining in the concave sections is effectively used for lubricating areas of sliding contact between the end surfaces on the large-diameter side and the inside surface in the axial direction of a large-diameter side flange section.Type: GrantFiled: November 17, 2010Date of Patent: April 7, 2015Assignee: NSK Ltd.Inventors: Hironori Mizuki, Yasuhiro Ishimori, Masahiro Kita, Hiroki Maejima, Kinji Yukawa, Tomoharu Saito, Yingyi Wen
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Publication number: 20120263405Abstract: A tapered roller bearing improves durability during a state of insufficient lubrication by sufficiently lengthening the time until rotation becomes impossible due to seizure. Oil retaining concave sections, recessed outward in the radial direction, are formed in portions on the inner circumferential surface of a large-diameter rim section of the retainer whose phase in the circumferential direction coincides with the pockets. A portion of the bottom surface of each of the oil retaining concave sections, open to the inside surface of the pocket, face a concave section formed in an end surface on the large-diameter side of tapered roller that is held inside the pocket. When lubrication becomes insufficient, oil remaining in the concave sections is effectively used for lubricating areas of sliding contact between the end surfaces on the large-diameter side and the inside surface in the axial direction of a large-diameter side flange section.Type: ApplicationFiled: November 17, 2010Publication date: October 18, 2012Applicant: NSK Ltd.Inventors: Hironori Mizuki, Yasuhiro Ishimori, Masahiro Kita, Hiroki Maejima, Kinji Yukawa, Tomoharu Saito, Yingyi Wen