Patents by Inventor Masaru Tanaka

Masaru Tanaka 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: 10747168
    Abstract: A control apparatus includes: a driving unit configured to drive a member into rotation; a detection unit configured to detect a torque exerted on the driving unit; and a control unit configured to control the driving unit and the member. The control unit is further configured to: when a state control of the member associated with a change of the torque exerted on the driving unit is performed, determine a change timing of the torque exerted on the driving unit and a value of the torque exerted on the driving unit at the change timing on a basis of a detection result of the detection unit; and determine a start timing of the state control of a case where the state control is again performed on the member on a basis of the change timing and the value of the torque.
    Type: Grant
    Filed: July 10, 2019
    Date of Patent: August 18, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Eijiro Ohashi, Masaru Tanaka
  • Publication number: 20200238201
    Abstract: Provided are specific cell-fractionating and -capturing methods which can fractionate and capture, respectively, specific cells (e.g., many types of cancer cells, including cancer cells not expressing EpCAM, or peripheral blood stem cells). Included is a method for fractionating specific cells present in blood or biological fluid, the method including fractionating the blood or biological fluid by centrifugation to collect the specific cells in the blood or biological fluid, the centrifugation being carried out using a container having a low protein adsorbing layer at least partially formed on the inner surface thereof.
    Type: Application
    Filed: December 27, 2019
    Publication date: July 30, 2020
    Applicants: SUMITOMO RUBBER INDUSTRIES, LTD., YAMAGATA UNIVERSITY
    Inventors: Yasuhisa MINAGAWA, Masaru TANAKA, Haruka EMURA, Kazuki SUTO
  • Publication number: 20200225212
    Abstract: The present invention provides a medical analysis device and a cell analysis method with which it is possible to count the number of cancer cells, culture the cancer cells, and determine the effect of drugs on the cancer cells. The present invention relates to a medical analysis device intended to capture cancer cells, the medical analysis device having multiple wells.
    Type: Application
    Filed: March 25, 2020
    Publication date: July 16, 2020
    Applicants: SUMITOMO RUBBER INDUSTRIES, LTD., YAMAGATA UNIVERSITY
    Inventors: Yasuhisa MINAGAWA, Masaru TANAKA, Takashi HOSHIBA, Tomokazu SHIBUYA
  • Patent number: 10641760
    Abstract: The present invention provides a medical analysis device and a cell analysis method with which it is possible to count the number of cancer cells, culture the cancer cells, and determine the effect of drugs on the cancer cells. The present invention relates to a medical analysis device intended to capture cancer cells, the medical analysis device having multiple wells.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: May 5, 2020
    Assignees: SUMITOMO RUBBER INDUSTRIES, LTD., YAMAGATA UNIVERSITY
    Inventors: Yasuhisa Minagawa, Masaru Tanaka, Takashi Hoshiba, Tomokazu Shibuya
  • Patent number: 10620186
    Abstract: The present invention provides a method for capturing cancer cells which can capture many types of cancer cells, including cancer cells not expressing EpCAM. The present invention relates to a method for capturing cancer cells present in biological fluid, the method including reducing the protein level of sampled biological fluid, followed by capturing cancer cells using a hydrophilic polymer layer.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: April 14, 2020
    Assignees: SUMITOMO RUBBER INDUSTRIES, LTD., YAMAGATA UNIVERSITY
    Inventors: Yasuhisa Minagawa, Masaru Tanaka, Takashi Hoshiba, Tomokazu Shibuya
  • Patent number: 10618996
    Abstract: Provided are methods for surface-modifying a thermoplastic resin which produce surfaces that show not only low adsorption of proteins and cells but also selective adsorption or adhesion of specific cells such as cancer cells, and further have excellent durability. A method for surface-modifying an object made of a thermoplastic resin, the method including: step 1 of forming polymerization initiation points on the surface of the object; and step 2 of radically polymerizing at least a hydrophilic monomer starting from the polymerization initiation points by irradiation with UV light having a wavelength of 300 to 400 nm to form a graft layer having a thickness of 2 to 100 nm on the surface of the object.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: April 14, 2020
    Assignees: SUMITOMO RUBBER INDUSTRIES, LTD., YAMAGATA UNIVERSITY
    Inventors: Yasuhisa Minagawa, Masaru Tanaka, Takashi Hoshiba, Tomokazu Shibuya
  • Publication number: 20200041173
    Abstract: A refrigeration apparatus includes a compressor, a first heat exchanger, an expansion mechanism, and a second heat exchanger. The compressor compresses low-pressure gas refrigerant and discharges high-pressure gas refrigerant. The first heat exchanger condenses high-pressure gas refrigerant and discharges high-pressure liquid refrigerant during an air-cooling operation, or evaporates low-pressure gas-liquid mixed refrigerant and discharges low-pressure gas refrigerant during an air-heating operation. The expansion mechanism has metal components. High-pressure liquid refrigerant passes through the expansion mechanism, and becomes low-pressure gas-liquid mixed refrigerant. The second heat exchanger evaporates low-pressure gas-liquid mixed refrigerant and discharges low-pressure gas refrigerant during an air-cooling operation, or condenses high-pressure gas refrigerant and discharges high-pressure liquid refrigerant during an air-heating operation. The refrigerant contains at least 60 wt % of R32.
    Type: Application
    Filed: October 9, 2019
    Publication date: February 6, 2020
    Inventors: Masaru Tanaka, Hideki Matsuura, Shigeharu Taira, Akinori NAKAI
  • Publication number: 20200033788
    Abstract: A control apparatus includes: a driving unit configured to drive a member into rotation; a detection unit configured to detect a torque exerted on the driving unit; and a control unit configured to control the driving unit and the member. The control unit is further configured to: when a state control of the member associated with a change of the torque exerted on the driving unit is performed, determine a change timing of the torque exerted on the driving unit and a value of the torque exerted on the driving unit at the change timing on a basis of a detection result of the detection unit; and determine a start timing of the state control of a case where the state control is again performed on the member on a basis of the change timing and the value of the torque.
    Type: Application
    Filed: July 10, 2019
    Publication date: January 30, 2020
    Inventors: Eijiro Ohashi, Masaru Tanaka
  • Publication number: 20200017742
    Abstract: The present invention provides a heat transfer device comprising a circulation route enclosing a refrigerant containing a hydrohaloolefin, the heat transfer device being capable of reducing the influence of oxygen entrapped in the circulation route; and a heat transfer method using the heat transfer device. Provided are a heat transfer device comprising a circulation route enclosing a refrigerant containing at least one member selected from the group consisting of hydrofluoroolefins (HFOs), hydrochlorofluoroolefins (HCFOs), and hydrochloroolefins (HCOs); and the device comprising an oxygen adsorption device between an evaporator and a compressor present in the circulation route; and a heat transfer method using the same.
    Type: Application
    Filed: December 8, 2017
    Publication date: January 16, 2020
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Tatsumi TSUCHIYA, Kouhei KOBA, Masaru TANAKA
  • Patent number: 10415009
    Abstract: A cell culture device comprises a cell culture membrane and a substrate fixed to the cell culture membrane. The cell culture membrane is made from a thermosetting resin and has a plurality of pores that are open to at least one surface including a surface on a side that is in contact with the substrate. The substrate is made from a thermoplastic resin. In a contact region between the cell culture membrane and the substrate, part of the substrate is extended to form bulges in the pores of the cell culture membrane that are open in the contact region. This configuration suppresses reduction of the strength of the cell culture membrane and reduction of the flatness of the cell culture membrane (membrane accuracy) in the cell culture device in which the cell culture membrane and the substrate are fixed to each other.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: September 17, 2019
    Assignees: TOYODA GOSEI CO., LTD., NATIONAL UNIVERSITY CORPORATION YAMAGATA UNIV.
    Inventors: Seitaro Taki, Hiroyuki Nakagawa, Atsuki Yoshimura, Masaru Tanaka
  • Patent number: 10391205
    Abstract: To Provide is a polymer having high antithrombogenicity compared to a conventional polymer having a glycerol group and suitable as a medical device material. It is the polymer having a structural unit derived from a glycerol group-containing monomer, and a structural unit derived from an unsaturated monomer having a structure in which an organic group having a structure site having 4 or more carbon atoms continuously bound is bound to an ethylenically unsaturated group; and satisfying a glass-transition temperature of 10° C. or less and/or a glass-transition temperature of ?25° C. or less at a saturated water content.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: August 27, 2019
    Assignees: National University Corporation Yamagata University, Nippon Shokubai Co., Ltd.
    Inventors: Masaru Tanaka, Naoki Kobayashi, Yoshitomo Nakata, Asuka Sugawara
  • Publication number: 20190250149
    Abstract: The present invention provides a method for capturing specific cells (e.g. many types of cancer cells, including cancer cells not expressing EpCAM) and a method for analysis of specific cells involving the method. Included is a method for capturing specific cells present in blood or biological fluid, the method including: centrifuging sampled blood or biological fluid at a centrifugal force of 1000 to 3000 G; and capturing specific cells therefrom onto a hydrophilic polymer layer.
    Type: Application
    Filed: January 16, 2019
    Publication date: August 15, 2019
    Applicants: SUMITOMO RUBBER INDUSTRIES, LTD., YAMAGATA UNIVERSITY, OSAKA UNIVERSITY
    Inventors: Yasuhisa MINAGAWA, Masaru TANAKA, Takashi HOSHIBA, Haruka EMURA, Masaki MORI, Hirofumi YAMAMOTO, Naotsugu HARAGUCHI
  • Publication number: 20190250151
    Abstract: The present invention provides a method for capturing specific cells (e.g. many types of cancer cells, including cancer cells not expressing EpCAM) and a method for analysis of specific cells involving the method. Included is a method for capturing specific cells present in blood or biological fluid, the method including: subjecting sampled blood or biological fluid to enrichment; and capturing specific cells therefrom onto a hydrophilic polymer layer in a flow field.
    Type: Application
    Filed: January 16, 2019
    Publication date: August 15, 2019
    Applicants: SUMITOMO RUBBER INDUSTRIES, LTD., YAMAGATA UNIVERSITY, OSAKA UNIVERSITY
    Inventors: Yasuhisa MINAGAWA, Masaru TANAKA, Takashi HOSHIBA, Haruka EMURA, Masaki MORI, Hirofumi YAMAMOTO, Naotsugu HARAGUCHI
  • Publication number: 20190250150
    Abstract: The present invention provides a method for capturing specific cells (e.g. many types of cancer cells, including cancer cells not expressing EpCAM), and a method for analysis of specific cells involving the method. Included is a method for capturing specific cells present in blood or biological fluid, the method including: agglutinating blood cells in sampled blood or biological fluid; centrifuging the resulting blood or biological fluid; and then capturing specific cells therefrom onto a hydrophilic polymer layer.
    Type: Application
    Filed: January 16, 2019
    Publication date: August 15, 2019
    Applicants: SUMITOMO RUBBER INDUSTRIES, LTD., YAMAGATA UNIVERSITY
    Inventors: Yasuhisa Minagawa, Masaru Tanaka, Takashi Hoshiba, Haruka Emura
  • Publication number: 20190091380
    Abstract: A biocompatible material, which has excellent film formation properties and resistance to water dissolution, and is easily applied on various bases as a coating, while having excellent antithrombotic properties, and to provide an antithrombotic coating agent and an antithrombotic coating film produced by using the biocompatible material, and a medical device provided with the antithrombotic coating film. A copolymer, containing at least one repeating unit (A) represented by formula (1) (wherein, n represents an integer of 2 to 10 and R1 represents a methyl group or an ethyl group), and at least one repeating unit (B) represented by formula (2) (wherein R2 represents an aliphatic hydrocarbon group); an antithrombotic coating agent containing the copolymer and an organic solvent; an antithrombotic coating film formed of the copolymer; and a medical device provided with the coating film.
    Type: Application
    Filed: January 24, 2017
    Publication date: March 28, 2019
    Applicants: Maruzen Petrochemical Co., Ltd., National University Corporation Yamagata University
    Inventors: Masaru TANAKA, Norihiro YOSHIDA
  • Publication number: 20190048240
    Abstract: A refrigeration apparatus includes a heat source unit, a utilization unit, and a liquid refrigerant pipe and gas refrigerant pipe. The utilization unit has utilization unit internal pipelines. The liquid refrigerant pipe and the gas refrigerant pipe connect the heat source unit and the utilization unit internal pipelines. A refrigerant circulates through the heat source unit, the utilization unit, the liquid refrigerant pipe, and the gas refrigerant pipe. The refrigerant contains a compound represented by a molecular formula having one or more carbon-carbon unsaturated bonds. A disproportionation inhibitor for reducing a disproportionation reaction of the refrigerant is applied to at least a part of inner surfaces of the liquid refrigerant pipe, the gas refrigerant pipe, and the utilization unit internal pipelines.
    Type: Application
    Filed: January 26, 2017
    Publication date: February 14, 2019
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Masaru TANAKA, Shigeharu TAIRA, Tomoyuki HAIKAWA, Yoshiki SHIMIZU
  • Publication number: 20190032973
    Abstract: A refrigeration apparatus pertaining to the invention can suppress clogging due to polymers formed by the polymerization of refrigerant and improve safety. The refrigeration apparatus is equipped with a refrigeration cycle in which a compressor, a condenser, an expansion mechanism, and an evaporator are connected in a loop. The refrigeration apparatus is equipped with a polymer catcher. The polymer catcher is attached to piping interconnecting an outlet side of the compressor and an inlet side of the condenser and catches polymers of refrigerant circulating in the refrigeration cycle. The refrigerant includes a compound represented by a molecular formula having one or more carbon-carbon unsaturated bonds.
    Type: Application
    Filed: January 26, 2017
    Publication date: January 31, 2019
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Masaru TANAKA, Shigeharu TAIRA, Tomoyuki HAIKAWA, Yoshiki SHIMIZU
  • Publication number: 20190032976
    Abstract: A refrigerant recovery system is equipped with an extraction pipe, a stabilizer holding container, a recovery pipe, a recovery container, and a recovery device. The extraction pipe is connectable to a refrigerant extraction port of an air conditioning apparatus. The stabilizer holding container is connected to the extraction pipe—and holds a stabilizer. The stabilizer holding container causes refrigerant guided by the extraction pipe to come into contact with the stabilizer. The recovery pipe guides the refrigerant discharged from the stabilizer holding container. The recovery container is connected to the recovery pipe and recovers the refrigerant guided by the recovery pipe. The recovery device causes the refrigerant to move from the refrigerant extraction port to the recovery container. The refrigerant includes a compound represented by a molecular formula having one or more carbon-carbon unsaturated bonds.
    Type: Application
    Filed: January 26, 2017
    Publication date: January 31, 2019
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Masaru TANAKA, Shigeharu TAIRA, Tomoyuki HAIKAWA, Yoshiki SHIMIZU
  • Patent number: 10080640
    Abstract: Provided are a stent to be placed in the bile duct and a process for producing the stent, the stent hollow being less apt to be blocked even when the stent is placed in the bile duct for a long period. The inner peripheral surface of the stent is coated with a resin layer with resistance to sludge formation that includes a polymer obtained by polymerizing 2-methoxyethyl acrylate. This stent is produced by applying a coating fluid that contains 0.1-0.5 mass % polymer obtained by polymerizing 2-methoxyethyl acrylate, to the inner peripheral surface of a stent.
    Type: Grant
    Filed: April 15, 2014
    Date of Patent: September 25, 2018
    Assignees: NATIONAL UNIVERSITY CORPORATION YAMAGATA UNIVERSITY, PIOLAX MEDICAL DEVICES, INC.
    Inventors: Masaru Tanaka, Makiko Aoki, Chikako Sato, Yoshihide Toyokawa, Kyosuke Shirakawa
  • Patent number: 10055844
    Abstract: A diagnostic apparatus for diagnosing a disease using a captured image of an affected area, the apparatus including a memory configured to memorize the captured image; and a processor configured to process the memorized image memorized in the memory. The processor is configured to perform a highlighting process which includes separating the captured image into the brightness component and a color information component; separating the brightness component into a base component and a detail component; highlighting the separated brightness component; and adding a region to be diagnosed in the captured image to the highlighted brightness component while a specified color of the region to be diagnosed is maintained.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: August 21, 2018
    Assignee: CASIO COMPUTER CO., LTD.
    Inventors: Akira Hamada, Mitsuyasu Nakajima, Masaru Tanaka, Toshitsugu Sato