Patents by Inventor Masakazu Toi

Masakazu Toi 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: 11275087
    Abstract: The present invention relates to a test support method which is a means for predicting whether or not pathological complete response (pCR) will be attained when a preoperative chemotherapy with an anticancer drug is performed, the method using a sample (breast cancer tissue section) collected from a breast cancer patient to be subjected to the preoperative chemotherapy. The test support method includes: [1] the step of acquiring a fluorescence image of a breast cancer tissue section, which fluorescence image shows bright spots of fluorescent nanoparticles labeling one or more kinds of breast cancer-related proteins; [2] the step of acquiring at least one index relating to the expression level(s) of the breast cancer-related protein(s) on the basis of the bright spots of the fluorescence image; and [3] the step of acquiring information for predicting pCR by performing an analysis using the above-described at least one index.
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: March 15, 2022
    Assignee: KONICA MINOLTA, INC.
    Inventors: Hideki Gouda, Masaru Takahashi, Kensaku Takanashi, Hisatake Okada, Yuichi Ozaki, Yuka Yoshihara, Yasushi Nakano, Kohsuke Gonda, Noriaki Ohuchi, Mika Watanabe, Norikazu Masuda, Masakazu Toi, Hiroshi Tada, Minoru Miyashita
  • Publication number: 20210205822
    Abstract: A separation device is a separation device that separates dielectric particles. The separation device includes a flow channel (20), a plurality of three-dimensionally shaped electrodes (31, 32), a power supply (40), and a controller. The flow channel (20) feeds a suspension containing the dielectric particles. The plurality of three-dimensionally shaped electrodes (31, 32) is arranged in the flow channel (20) and extends in a height direction of the flow channel (20). The power supply (40) applies an AC voltage with a predetermined frequency to the plurality of electrodes (31, 32) so as to generate dielectrophoresis of the dielectric particles. The controller controls the power supply.
    Type: Application
    Filed: January 31, 2017
    Publication date: July 8, 2021
    Inventors: Yoshikazu WAKIZAKA, Massayo TAKANO, Takayuki ITOI, Takaharu ENJOJI, Masakazu TOI, Tomomi NISHIMURA
  • Patent number: 10766040
    Abstract: An analysis device (200) analyzes a crossover frequency at which a dielectrophoretic force on dielectric particles switches from a repulsive force to an attractive force or from the attractive force to the repulsive force, comprising a flow channel (5), a pair of electrodes (22, 23), a power supply (24), an imaging unit (25) and an analyzer (26). Through the flow channel (5), a sample solution containing the dielectric particles in the dielectrophoretic liquid flows. The pair of electrodes (22, 23) are arranged in the first channel. The power supply (24) applies a frequency-modulated AC voltage to the first electrodes (22, 23). The imaging unit (25) captures an image of a movement trajectory of each of the dielectric particles flowing between the electrodes (22, 23) in the flow channel. The analyzer (26) obtains the crossover frequency of the dielectric particles based on the captured image of the movement trajectory.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: September 8, 2020
    Assignee: AFI CORPORATION
    Inventors: Yoshikazu Wakizaka, Masayo Takano, Takayuki Itoi, Takaharu Enjoji, Masakazu Toi, Tomomi Nishimura
  • Patent number: 10638934
    Abstract: The present invention provides a subject information accumulating apparatus that conducts diagnosis with high reliability. The subject information accumulating apparatus includes compression plates configured to compress a subject, an irradiation unit configured to apply light, an acoustic wave detector configured to receive acoustic waves generated within a subject and to output an electric signal, and a controller configured to perform control so that an acoustic wave image and pressure information are displayed on a display unit.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: May 5, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Katsuya Oikawa, Toshinobu Tokita, Masakazu Toi, Toshiyuki Kitai
  • Publication number: 20190032103
    Abstract: An analysis device (200) analyzes a crossover frequency at which a dielectrophoretic force on dielectric particles switches from a repulsive force to an attractive force or from the attractive force to the repulsive force, comprising a flow channel (5), a pair of electrodes (22, 23), a power supply (24), an imaging unit (25) and an analyzer (26). Through the flow channel (5), a sample solution containing the dielectric particles in the dielectrophoretic liquid flows. The pair of electrodes (22, 23) are arranged in the first channel. The power supply (24) applies a frequency-modulated AC voltage to the first electrodes (22, 23). The imaging unit (25) captures an image of a movement trajectory of each of the dielectric particles flowing between the electrodes (22, 23) in the flow channel. The analyzer (26) obtains the crossover frequency of the dielectric particles based on the captured image of the movement trajectory.
    Type: Application
    Filed: January 27, 2017
    Publication date: January 31, 2019
    Inventors: Yoshikazu WAKIZAKA, Masayo TAKANO, Takayuki ITOI, Takaharu ENJOJI, Masakazu TOI, Tomomi NISHIMURA
  • Publication number: 20180275131
    Abstract: Provided is a cancer development risk assessment device (1) capable of determining the possibility of cancer development in a subject to be assessed in short time. The cancer development risk assessment device (1) includes a measurement unit (3) and a controller (4). The measurement unit (3) is configured to measure concentrations of a plurality of types of target components included in exhaled air collected from a subject to be assessed. The controller (4) is configured to calculate an assessment score correlated to the possibility of cancer being developed in the subject to be assessed based on measurement results of the concentrations obtained by the measurement unit (3).
    Type: Application
    Filed: September 28, 2016
    Publication date: September 27, 2018
    Inventors: Mariko HANADA, Hiroshi KODA, Hajime KOMURA, Satoshi MORIMOTO, Katsumi TOKUNO, Katsuyuki TANAKA, Noriko ASHIDA, Yuzo KODAMA, Tsutomu CHIBA, Atsushi MIMA, Masahiro TAKADA, Masakazu TOI
  • Publication number: 20180136212
    Abstract: The present invention relates to a test support method which is a means for predicting whether or not pathological complete response (pCR) will be attained when a preoperative chemotherapy with an anticancer drug is performed, the method using a sample (breast cancer tissue section) collected from a breast cancer patient to be subjected to the preoperative chemotherapy. The test support method includes: [1] the step of acquiring a fluorescence image of a breast cancer tissue section, which fluorescence image shows bright spots of fluorescent nanoparticles labeling one or more kinds of breast cancer-related proteins; [2] the step of acquiring at least one index relating to the expression level(s) of the breast cancer-related protein(s) on the basis of the bright spots of the fluorescence image; and [3] the step of acquiring information for predicting pCR by performing an analysis using the above-described at least one index.
    Type: Application
    Filed: November 8, 2017
    Publication date: May 17, 2018
    Inventors: Hideki GOUDA, Masaru TAKAHASHI, Kensaku TAKANASHI, Hisatake OKADA, Yuichi OZAKI, Yuka YOSHIHARA, Yasushi NAKANO, Kohsuke GONDA, Noriaki OHUCHI, Mika WATANABE, Norikazu MASUDA, Masakazu TOI, Hiroshi TADA, Minoru MIYASHITA
  • Patent number: 9873916
    Abstract: This invention relates to a composition and a method for prediction of a response to Trastuzumab therapy in a breast cancer patient, and more specifically, a composition, a kit, a DNA chip, and a method for predicting a response to Trastuzumab therapy by using polynucleotides each comprising a nucleotide sequence represented by any of SEQ ID NOs: 1 to 9, 11 to 19, and 21 to 23 in the Sequence Listing or a nucleotide sequence derived therefrom by substitution of u with t, mutants thereof, derivatives thereof, or fragments thereof comprising at least 16 continuous nucleotides, or a polynucleotide comprising a complementary sequence thereof, and using an increase or decrease in Her2 protein expression level as an indicator.
    Type: Grant
    Filed: April 25, 2012
    Date of Patent: January 23, 2018
    Assignees: TORAY INDUSTRIES, INC., KYOTO UNIVERSITY
    Inventors: Akira Myomoto, Satoko Kozono, Fumiaki Sato, Masakazu Toi, Takayuki Ueno, Zhipeng Wang, Gozoh Tsujimoto, Kazuharu Shimizu
  • Patent number: 9370307
    Abstract: A subject information acquisition device includes a first holding member that holds a subject of a patient, a first probe that detects an acoustic wave having propagated through the first holding member and that performs a scanning operation, a first holding-member support located on a patient side from a scanning range of the first probe and that reduces bending of the first holding member, and a second probe located on the patient side from the scanning range of the first probe.
    Type: Grant
    Filed: September 27, 2012
    Date of Patent: June 21, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshiko Wada, Masakazu Toi, Toshiyuki Kitai
  • Publication number: 20140350358
    Abstract: The present invention provides a subject information accumulating apparatus that conducts diagnosis with high reliability. The subject information accumulating apparatus includes compression plates configured to compress a subject, an irradiation unit configured to apply light, an acoustic wave detector configured to receive acoustic waves generated within a subject and to output an electric signal, and a controller configured to perform control so that an acoustic wave image and pressure information are displayed on a display unit.
    Type: Application
    Filed: December 14, 2012
    Publication date: November 27, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Katsuya Oikawa, Toshinobu Tokita, Masakazu Toi, Toshiyuki Kitai
  • Patent number: 8865663
    Abstract: An administration method comprising: determining a cancer type through (i) first data indicating that an Estrogen Receptor (ER) is negative and a Human Epidermal growth factor Receptor-2 (Her2) is negative, or (ii) second data indicating that at least one of the ER and the Her2 is positive; and when the cancer type is determined through (i) the first data indicating that the ER is negative and the Her2 is negative: first performing a docetaxel administration cycle comprising administrating docetaxel to a patient multiple times at certain intervals; and then performing a 5-fluorouracil, epirubicin, and cyclophosphamide (FEC) administration cycle comprising administrating 5-fluorouracil, epirubicin, and cyclophosphamide to the patient multiple times at certain intervals, and when the cancer type is determined through (ii) the second data indicating that at least one of the ER and Her2 is positive: first performing the FEC administration cycle; and then performing the docetaxel administration cycle.
    Type: Grant
    Filed: January 26, 2009
    Date of Patent: October 21, 2014
    Assignee: Japan Breast Cancer Research Group
    Inventors: Masakazu Toi, Hiroji Iwata, Katsumasa Kuroi, Seigo Nakamura, Shinji Ohno, Norikazu Masuda, Kenjiro Aogi, Nobuaki Sato, Futoshi Akiyama, Masafumi Kurosumi, Hitoshi Tsuda
  • Patent number: 8778332
    Abstract: Provided is an agent or a food or drink for reducing the risk of developing breast cancer. An agent for reducing the risk of developing breast cancer which comprises a composition containing living cells of Lactobacillus casei.
    Type: Grant
    Filed: October 21, 2010
    Date of Patent: July 15, 2014
    Assignee: Kabushiki Kaisha Yakult Honsha
    Inventors: Masakazu Toi, Yasuo Ohashi
  • Publication number: 20140073533
    Abstract: This invention relates to a composition and a method for prediction of a response to Trastuzumab therapy in a breast cancer patient, and more specifically, a composition, a kit, a DNA chip, and a method for predicting a response to Trastuzumab therapy by using polynucleotides each comprising a nucleotide sequence represented by any of SEQ ID NOs: 1 to 9, 11 to 19, and 21 to 23 in the Sequence Listing or a nucleotide sequence derived therefrom by substitution of u with t, mutants thereof, derivatives thereof, or fragments thereof comprising at least 16 continuous nucleotides, or a polynucleotide comprising a complementary sequence thereof, and using an increase or decrease in Her2 protein expression level as an indicator.
    Type: Application
    Filed: April 25, 2012
    Publication date: March 13, 2014
    Applicants: KYOTO UNIVERSITY, TORAY INDUSTRIES, INC
    Inventors: Akira Myomoto, Satoko Kozono, Fumiaki Sato, Masakazu Toi, Takayuki Ueno, Zhipeng Wang, Gozoh Tsujimoto, Kazuharu Shimizu
  • Publication number: 20130085372
    Abstract: A subject information acquisition device includes a first holding member that holds a subject of a patient, a first probe that detects an acoustic wave having propagated through the first holding member and that performs a scanning operation, a first holding-member support located on a patient side from a scanning range of the first probe and that reduces bending of the first holding member, and a second probe located on the patient side from the scanning range of the first probe.
    Type: Application
    Filed: September 27, 2012
    Publication date: April 4, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Yoshiko Wada, Masakazu Toi, Toshiyuki Kitai
  • Patent number: 8362027
    Abstract: The present invention is to provide means to treat breast cancer and/or mastitis by topically administering a non-steroidal antiinflammatory analgetic agent and/or an anticancer agent and allowing them efficiently to arrive into the mammary gland. The present invention provides an iontophoretic preparation for treating breast cancer and/or mastitis which contains a non-steroidal antiinflammatory analgetic agent and/or an anticancer agent as an active ingredient and has a donor to be applied on a nipple part for topical administration of the active ingredient from the nipple part to the mammary gland by application of electric potential.
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: January 29, 2013
    Assignees: Kowa Co., Ltd., Tokyo University of Science Educational Foundation Administrative Organization
    Inventors: Toshio Inagi, Makoto Kanebako, Hiroshi Terada, Kimiko Makino, Masakazu Toi
  • Publication number: 20120201797
    Abstract: Provided is an agent or a food or drink for reducing the risk of developing breast cancer. An agent for reducing the risk of developing breast cancer which comprises a composition containing living cells of Lactobacillus casei.
    Type: Application
    Filed: October 21, 2010
    Publication date: August 9, 2012
    Applicant: KABUSHIKI KAISHA YAKULT HONSHA
    Inventors: Masakazu Toi, Yasuo Ohashi
  • Publication number: 20110295189
    Abstract: The present invention is to provide means to treat breast cancer and/or mastitis by topically administering a non-steroidal antiinflammatory analgetic agent and/or an anticancer agent and allowing them efficiently to arrive into the mammary gland. The present invention provides an iontophoretic preparation for treating breast cancer and/or mastitis which contains a non-steroidal antiinflammatory analgetic agent and/or an anticancer agent as an active ingredient and has a donor to be applied on a nipple part for topical administration of the active ingredient from the nipple part to the mammary gland by application of electric potential.
    Type: Application
    Filed: August 8, 2011
    Publication date: December 1, 2011
    Applicants: Tokyo Univ. of Sci. Edu. Fdn. Admin. Org., Kowa Co., Ltd.
    Inventors: Toshio INAGI, Makoto Kanebako, Hiroshi Terada, Kimiko Makino, Masakazu Toi
  • Patent number: 8034824
    Abstract: The present invention is to provide means to treat breast cancer and/or mastitis by topically administering a non-steroidal antiinflammatory analgetic agent and/or an anticancer agent and allowing them efficiently to arrive into the mammary gland. The present invention provides an iontophoretic preparation for treating breast cancer and/or mastitis which contains a non-steroidal antiinflammatory analgetic agent and/or an anticancer agent as an active ingredient and has a donor to be applied on a nipple part for topical administration of the active ingredient from the nipple part to the mammary gland by application of electric potential.
    Type: Grant
    Filed: October 11, 2006
    Date of Patent: October 11, 2011
    Assignees: Kowa Co., Ltd., Tokyo University of Science Educational Foundation Administrative Organization
    Inventors: Toshio Inagi, Makoto Kanebako, Hiroshi Terada, Kimiko Makino, Masakazu Toi
  • Publication number: 20110015144
    Abstract: There was no device that proposes a method for administrating anti-cancer drugs according to each of cancer types. An administration method proposing device (100) includes an input unit (101) that receives an input of the cancer type of a cancer patient, an administration procedure determination unit (102) that determines the administration order of an FEC (F: 5-fluorouracil, E: epirubicin, and C: cyclophosphamide) administration cycle and a docetaxel administration cycle, and a display unit (103) that displays the administration order of the FEC administration cycle and the docetaxel administration cycle, as a result of the determination by the administration procedure determination unit (102).
    Type: Application
    Filed: January 26, 2009
    Publication date: January 20, 2011
    Inventors: Masakazu Toi, Hiroji Iwata, Katsumasa Kuroi, Seigo Nakamura, Shinji Ohno, Norikazu Masuda, Kenjiro Aogi, Nobuaki Sato, Futoshi Akiyama, Masafumi Kurosumi, Hitoshi Tsuda
  • Publication number: 20090281063
    Abstract: The present invention is to provide means to treat breast cancer and/or mastitis by topically administering a non-steroidal antiinflammatory analgetic agent and/or an anticancer agent and allowing them efficiently to arrive into the mammary gland. The present invention provides an iontophoretic preparation for treating breast cancer and/or mastitis which contains a non-steroidal antiinflammatory analgetic agent and/or an anticancer agent as an active ingredient and has a donor to be applied on a nipple part for topical administration of the active ingredient from the nipple part to the mammary gland by application of electric potential.
    Type: Application
    Filed: October 11, 2006
    Publication date: November 12, 2009
    Applicants: KOWA CO., LTD., TOKYO UNIVERSITY OF SCIENCE EDUCATIONAL FOUNDATION ADMINISTRATIVE ORGANIZATION
    Inventors: Toshio Inagi, Makoto Kanebako, Hiroshi Terada, Kimiko Makino, Masakazu Toi