Patents by Inventor Katsuhito Fujiu
Katsuhito Fujiu 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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Publication number: 20240047074Abstract: An information processing device is provided. This information processing device has a read-out unit, a calculation unit, and an output unit. The read-out unit reads a first electrocardiogram waveform of a first subject. The calculation unit calculates an index that depends on the expected value of heart failure severity on the basis of the first electrocardiogram waveform and reference information. The reference information shows the correlation between the index and a second electrocardiogram waveform of a second subject that is different from the first subject. The output unit outputs the index.Type: ApplicationFiled: October 11, 2022Publication date: February 8, 2024Inventors: Katsuhito FUJIU, Yu SHIMIZU, Issei KOMURO, Eriko HASUMI, Ying CHEN, Ryu SAITO, Minoru SHIRATSUCHI
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Patent number: 11861889Abstract: An analysis device includes an analysis unit configured to receive scattered light, transmitted light, fluorescence, or electromagnetic waves from an observed object located in a light irradiation region light-irradiated from a light source and analyze the observed object on the basis of a signal extracted on the basis of a time axis of an electrical signal output from a light-receiving unit configured to convert the received light or electromagnetic waves into the electrical signal.Type: GrantFiled: November 29, 2022Date of Patent: January 2, 2024Assignees: The University of Tokyo, Osaka UniversityInventors: Sadao Ota, Issei Sato, Katsuhito Fujiu, Satoko Yamaguchi, Kayo Waki, Yoko Itahashi, Ryoichi Horisaki
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Publication number: 20230237789Abstract: An analysis device includes an analysis unit configured to receive scattered light, transmitted light, fluorescence, or electromagnetic waves from an observed object located in a light irradiation region light-irradiated from a light source and analyze the observed object on the basis of a signal extracted on the basis of a time axis of an electrical signal output from a light-receiving unit configured to convert the received light or electromagnetic waves into the electrical signal.Type: ApplicationFiled: November 29, 2022Publication date: July 27, 2023Inventors: Sadao Ota, Issei Sato, Katsuhito Fujiu, Satoko Yamaguchi, Kayo Waki, Yoko Itahashi, Ryoichi Horisaki
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Patent number: 11542461Abstract: An analysis device includes an analysis unit configured to receive scattered light, transmitted light, fluorescence, or electromagnetic waves from an observed object located in a light irradiation region light-irradiated from a light source and analyze the observed object on the basis of a signal extracted on the basis of a time axis of an electrical signal output from a light-receiving unit configured to convert the received light or electromagnetic waves into the electrical signal.Type: GrantFiled: June 17, 2021Date of Patent: January 3, 2023Assignees: The University of Tokyo, OSAKA UNIVERSITYInventors: Sadao Ota, Issei Sato, Katsuhito Fujiu, Satoko Yamaguchi, Kayo Waki, Yoko Itahashi, Ryoichi Horisaki
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Patent number: 11412978Abstract: An information processing system is provided to reduce labor of medical staff in determining heart failure stage. The information processing system is configured to execute: a reading step of reading out an input first electrocardiogram including an electrocardiogram of a user; and a determination step of determining a heart failure stage of the user based on the first electrocardiogram and reference information, wherein the reference information is information showing a relationship between the second electrocardiogram, including the electrocardiogram obtained beforehand, in which the heart failure stage has been determined by the physician, and a feature quantity of the heart failure, wherein: the reference information is a learned model in which the feature quantity of the heart failure is learned from the second electrocardiogram, and the learned model is a model that learned a content determined in the determination step and corresponding clinical data.Type: GrantFiled: June 21, 2021Date of Patent: August 16, 2022Inventors: Katsuhito Fujiu, Issei Komuro, Eriko Hasumi, Yu Shimizu, Yoshihiro Mikami, Ryu Saito, Minoru Shiratsuchi, Ying Chen, Yuji Hamada
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Publication number: 20220061754Abstract: An information processing system is provided to reduce labor of medical staff in determining heart failure stage. The information processing system is configured to execute: a reading step of reading out an input first electrocardiogram including an electrocardiogram of a user; and a determination step of determining a heart failure stage of the user based on the first electrocardiogram and reference information, wherein the reference information is information showing a relationship between the second electrocardiogram, including the electrocardiogram obtained beforehand, in which the heart failure stage has been determined by the physician, and a feature quantity of the heart failure, wherein: the reference information is a learned model in which the feature quantity of the heart failure is learned from the second electrocardiogram, and the learned model is a model that learned a content determined in the determination step and corresponding clinical data.Type: ApplicationFiled: June 21, 2021Publication date: March 3, 2022Applicants: THE UNIVERSITY OF TOKYO, SIMPLEX QUANTUM Inc., SIMPLEX QUANTUM Inc.Inventors: Katsuhito FUJIU, Issei KOMURO, Eriko HASUMI, Yu SHIMIZU, Yoshihiro MIKAMI, Ryu SAITO, Minoru SHIRATSUCHI, Ying CHEN, Yuji HAMADA
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Publication number: 20220041963Abstract: An analysis device includes an analysis unit configured to receive scattered light, transmitted light, fluorescence, or electromagnetic waves from an observed object located in a light irradiation region light-irradiated from a light source and analyze the observed object on the basis of a signal extracted on the basis of a time axis of an electrical signal output from a light-receiving unit configured to convert the received light or electromagnetic waves into the electrical signal.Type: ApplicationFiled: June 17, 2021Publication date: February 10, 2022Inventors: Sadao Ota, Issei Sato, Katsuhito Fujiu, Satoko Yamaguchi, Kayo Waki, Yoko Itahashi, Ryoichi Horisaki
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Patent number: 11098275Abstract: An analysis device includes an analysis unit configured to receive scattered light, transmitted light, fluorescence, or electromagnetic waves from an observed object located in a light irradiation region light-irradiated from a light source and analyze the observed object on the basis of a signal extracted on the basis of a time axis of an electrical signal output from a light-receiving unit configured to convert the received light or electromagnetic waves into the electrical signal.Type: GrantFiled: October 28, 2016Date of Patent: August 24, 2021Assignees: THE UNIVERSITY OF TOKYO, OSAKA UNIVERSITYInventors: Sadao Ota, Issei Sato, Katsuhito Fujiu, Satoko Yamaguchi, Kayo Waki, Yoko Itahashi, Ryoichi Horisaki
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Publication number: 20180327699Abstract: An analysis device includes an analysis unit configured to receive scattered light, transmitted light, fluorescence, or electromagnetic waves from an observed object located in a light irradiation region light-irradiated from a light source and analyze the observed object on the basis of a signal extracted on the basis of a time axis of an electrical signal output from a light-receiving unit configured to convert the received light or electromagnetic waves into the electrical signal.Type: ApplicationFiled: October 28, 2016Publication date: November 15, 2018Applicants: THE UNIVERSITY OF TOKYO, OSAKA UNIVERSITYInventors: Sadao OTA, Issei SATO, Katsuhito FUJIU, Satoko YAMAGUCHI, Kayo WAKI, Yoko ITAHASHI, Ryoichi HORISAKI
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Patent number: 9320622Abstract: A nickel-free stainless steel stent using a stainless steel which does not substantially contain Ni in the stainless steel, has a metal allergy onset-preventing effect, and is excellent in terms of precision workability, strength, and ductility, is provided. The nickel-free stainless steel stent is characterized by using a stainless steel containing, as a chemical composition, from 15 to 30% by mass of Cr, from 0.97 to 2% by mass of Mo, and from 0.5 to 1% by mass of N, with the remainder being Fe, and optionally containing inevitable impurities.Type: GrantFiled: November 25, 2011Date of Patent: April 26, 2016Assignee: NATIONAL INSTITUTE FOR MATERIALS SCIENCEInventors: Tetsushi Taguchi, Yasuyuki Katada, Ryozo Nagai, Ichiro Manabe, Katsuhito Fujiu
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Publication number: 20130304184Abstract: A nickel-free stainless steel stent using a stainless steel which does not substantially contain Ni in the stainless steel, has a metal allergy onset-preventing effect, and is excellent in terms of precision workability, strength, and ductility, is provided. The nickel-free stainless steel stent is characterized by using a stainless steel containing, as a chemical composition, from 15 to 30% by mass of Cr, from 0.97 to 2% by mass of Mo, and from 0.5 to 1% by mass of N, with the remainder being Fe, and optionally containing inevitable impurities.Type: ApplicationFiled: November 25, 2011Publication date: November 14, 2013Inventors: Tetsushi Taguchi, Yasuyuki Katada, Ryozo Nagai, Ichiro Manabe, Katsuhito Fujiu
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Publication number: 20130045277Abstract: Disclosed is a biocompatible device surface-coated on the base material thereof with a biocompatible polymer layer having antithrombogenicity and endothelialization activity, and embedded in or attached to a living body for use. The polymer layer comprises a polymer matrix formed by the crosslinking of a cell-adhesive peptide-containing polymer.Type: ApplicationFiled: February 1, 2011Publication date: February 21, 2013Inventors: Tetsushi Taguchi, Yasuyuki Katada, Ryozo Nagai, Ichiro Manabe, Katsuhito Fujiu