Patents by Inventor Masaki Fujita

Masaki Fujita 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: 10251742
    Abstract: An artificial blood vessel is composed of a cylindrical multiple-woven fabric structure allowing only a small amount of blood leakage and can achieve both antithrombogenicity and cellular affinity. The artificial blood vessel includes a cylindrical fabric structure in which a cylindrical fabric whose inside contacts blood is arranged, wherein the cylindrical fabric is a fabric prepared by interlacing a plurality of warp yarns and a plurality of weft yarns with each other into a cylindrical shape; the warp yarns and the weft yarns constituting the cylindrical fabric include a multifilament yarn having a single yarn fineness of not more than 0.50 dtex, and are bound to an antithrombogenic material; the antithrombogenic material forms an antithrombogenic material layer having a thickness of 1 to 600 nm inside the cylindrical fabric; and the water permeability under conditions where a pressure of 16 kPa is applied to the inner surface is less than 300 mL/cm2/min.
    Type: Grant
    Filed: February 12, 2015
    Date of Patent: April 9, 2019
    Assignee: Toray Industries, Inc.
    Inventors: Masaki Fujita, Koji Kadowaki, Yuka Sakaguchi, Kazuhiro Tanahashi, Hiroshi Tsuchikura, Satoshi Yamada
  • Publication number: 20190061155
    Abstract: Provided is a technology which secures safety of a moving body and prevents collision between a robot and the moving body. A detection unit detects a relative positional relationship between a robot arm which is able to move about a support pointy and a moving body by a sensor attached to the robot arm. A control unit generates a drive control signal of an actuator which causes the robot arm to be able to move on the basis of a change in the relative positional relationship between the robot arm and the moving body detected by a detecting unit. An output unit outputs the drive control signal generated by the control unit to the actuator. The control unit generates the drive control signal which changes a speed at which the robot arm is able to move in accordance with the change in the relative positional relationship with the moving body.
    Type: Application
    Filed: February 7, 2018
    Publication date: February 28, 2019
    Applicant: OMRON Corporation
    Inventors: Minoru HASHIMOTO, Yoshiharu TANI, Kazunori OSAKO, Toshiyuki HIGUCHI, Daichi KAMISONO, Masaki FUJITA
  • Publication number: 20180344906
    Abstract: An antithrombogenic metallic material includes a metallic material whose surface is coated with a coating material, the coating material containing: a phosphonic acid derivative or a catechol derivative; a polymer containing, as a constituent monomer, a compound selected from the group consisting of alkyleneimines, vinylamines, allylamines, lysine, protamine, and diallyldimethylammonium chloride; and an anionic compound containing a sulfur atom and having anticoagulant activity; the polymer being covalently bound to the phosphonic acid derivative or the catechol derivative, the phosphonic acid derivative or the catechol derivative being bound to the metallic material through a phosphonic acid group or a catechol group thereof, wherein the abundance ratio of nitrogen atoms to the abundance of total atoms as measured by X-ray photoelectron spectroscopy (XPS) on the surface is 4.0 to 13.0 atomic percent.
    Type: Application
    Filed: March 31, 2016
    Publication date: December 6, 2018
    Inventors: Koji Kadowaki, Masaki Fujita, Yuka Sakaguchi, Kazuhiro Tanahashi
  • Publication number: 20180333854
    Abstract: Provided is a highly safe robot system. A robot system includes: an arm operation control unit that controls operations of an arm; and a storage unit that records hazardous part information related to at least any one of a grip unit of the arm and a work target gripped with the grip unit, and the arm operation control unit causes the arm to operate such that the hazardous direction of the hazardous part is different from a moving direction of the grip unit on the basis of the hazardous part information.
    Type: Application
    Filed: February 11, 2018
    Publication date: November 22, 2018
    Applicant: OMRON Corporation
    Inventors: Toshiyuki HIGUCHI, Yoshiharu TANI, Kazunori OSAKO, Minoru HASHIMOTO, Daichi KAMISONO, Masaki FUJITA
  • Publication number: 20180311814
    Abstract: An industrial robot having high operability for a user is provided. An industrial robot includes a manipulator, a controller which controls an operation of the manipulator, and a detection device attached to the manipulator and detecting a gesture input. The controller executes a process corresponding to the detected gesture input.
    Type: Application
    Filed: February 7, 2018
    Publication date: November 1, 2018
    Applicant: OMRON Corporation
    Inventors: Daichi KAMISONO, Yoshiharu TANI, Kazunori OSAKO, Toshiyuki HIGUCHI, Minoru HASHIMOTO, Masaki FUJITA
  • Patent number: 10098725
    Abstract: An endovascular treatment aiding device is an endovascular treatment aiding device including a flexible shaft; a filter fixed to the shaft such that an opening section is formed in the proximal side, wherein a ring having elastic restoring force is fixed to the opening section, which filter is capable of being opened and closed in an umbrella-like manner, and is in a conical shape having a bottom formed by the ring when the filter is open; and a linear supporting member fixed to the ring and a part of the shaft such that they are connected to each other, which linear supporting member enables closing the filter by application of an external force to the proximal side; wherein coils formed with a radio-opaque material is/are wound around the ring; when the filter is closed, a plurality of mountains pointing toward the distal side and a plurality of valleys pointing toward the proximal side are alternately formed in the ring to form a shape in which the mountains are positioned close to each other, and the vall
    Type: Grant
    Filed: May 8, 2015
    Date of Patent: October 16, 2018
    Assignees: Toray Industries, Inc.
    Inventors: Kanji Inoue, Takahiro Yagi, Masaki Fujita, Koji Kadowaki, Kazuhiro Tanahashi
  • Publication number: 20180140752
    Abstract: An antithrombogenic material includes a coating material containing: a cationic polymer containing, as a constituent monomer, a compound selected from the group consisting of alkyleneimines, vinylamines, allylamines, lysine, protamine, and diallyldimethylammonium chloride; and an anionic compound containing a sulfur atom and having anticoagulant activity; and a base material whose surface is coated with the coating material; wherein the cationic polymer is covalently bound to the base material; the anionic compound containing a sulfur atom and having anticoagulant activity is immobilized on the surface of the base material by ionic bonding to the cationic polymer; and the average thickness of the coating material is 15 to 400 nm.
    Type: Application
    Filed: May 27, 2016
    Publication date: May 24, 2018
    Inventors: Koji Kadowaki, Akihiro Saito, Megumi Nakanishi, Masaki Fujita, Kazuhiro Tanahashi
  • Patent number: 9943424
    Abstract: An artificial blood vessel includes a tubular woven fabric composed of a multifilament yarn A including a first polyester and a multifilament yarn B including a second polyester, and has an inner diameter of 8 mm or less and a layer thickness of 50 ?m or more and 250 ?m or less, wherein the multifilament yarn A has a single fiber fineness of 1.0 dtex or more and a total fineness of 33 dtex or less, the multifilament yarn B has a single fiber fineness of 0.08 dtex or less and a total fineness of 66 dtex or less, and the multifilament yarn B forms loops on an inner wall surface of the tubular woven fabric.
    Type: Grant
    Filed: April 23, 2014
    Date of Patent: April 17, 2018
    Assignee: Toray Industries, Inc.
    Inventors: Satoshi Yamada, Hiroshi Tsuchikura, Nobuaki Tanaka, Kazuhiro Tanahashi, Yuka Sakaguchi, Masaki Fujita, Koji Kadowaki
  • Patent number: 9867917
    Abstract: The present invention provides a medical material and a blood purification apparatus each having high anti-thrombotic properties and high safety. The apparatus is produced by incorporating therein a medical material which has a hydrophilic copolymerization polymer present on a surface thereof which is to be in contact with blood, wherein particulate protuberances each having a particle diameter of 50 nm or more are present on the surface which is to be in contact with blood at a density of 3 particles/?m2 or less and the relaxation time of adsorbed water in the hydrophilic copolymerization polymer is 2.5×10?8 seconds or shorter and 5.0×10?10 seconds or longer at ?40° C.
    Type: Grant
    Filed: December 27, 2011
    Date of Patent: January 16, 2018
    Assignee: Toray Industries, Inc.
    Inventors: Yoshiyuki Ueno, Masaki Fujita, Hiroyuki Sugaya, Kazuyuki Hashimoto, Hiroyuki Terasaka, Ryo Koganemaru
  • Publication number: 20170362380
    Abstract: Methods and hydrogels for preventing or reducing cellular adhesion and protein adsorption to a tissue (e.g. cardiac tissue) are disclosed. The hydrogels generally include at least two component polymers, a first polymer including an aminooxy group and a second polymer including a reactive oxo group, that are cross-linked by oxime bonds. The hydrogels are suitable for binding to and coating a tissue or cell. The hydrogels operate to reduce cellular adhesions and protein adsorption to the tissue or cell.
    Type: Application
    Filed: December 9, 2015
    Publication date: December 21, 2017
    Inventors: Karen Christman, Gregory Grover, Michael Madani, Masaki Fujita
  • Publication number: 20170342376
    Abstract: A fiber structure can be used as a cell scaffold material, which fiber structure includes a multifilament formed by bundling monofilaments having an average fiber diameter of 1 to 15 ?m, wherein each of the monofilaments satisfies Formula (1): (Y/X)×100>50 . . . (1) wherein, in Formula (1), X represents the number of monofilaments for which the average crossing angle is investigated, and Y represents the number of monofilaments having an average crossing angle of not more than 25° in X.
    Type: Application
    Filed: October 30, 2015
    Publication date: November 30, 2017
    Inventors: Koji Kadowaki, Chisa Kuga, Masaki Fujita, Kazuhiro Tanahashi, Satoshi Yamada, Takayuki Kaneko, Hiroshi Tsuchikura
  • Patent number: 9795721
    Abstract: An antithrombogenic material includes a coating material containing: a polymer containing, as a constituent monomer, a compound selected from the group consisting of alkyleneimines, vinylamines, allylamines, lysine, protamine and diallyldimethylammonium chloride; and an anionic compound containing a sulfur atom and having anticoagulant activity; and a base material whose surface is coated with the coating material; wherein the polymer is covalently bound to the base material; and an abundance ratio of nitrogen atoms to an abundance of total atoms as measured by X-ray photoelectron spectroscopy (XPS) on a surface of the base material is 6.0 to 12.0 atomic percent.
    Type: Grant
    Filed: November 27, 2014
    Date of Patent: October 24, 2017
    Assignee: Toray Industries, Inc.
    Inventors: Koji Kadowaki, Masaki Fujita, Yuka Sakaguchi, Kazuhiro Tanahashi
  • Publication number: 20170261396
    Abstract: There are provided a fluid-path tester and a fluid-path testing-method capable of performing classification of abnormal-modes into a problem in a system, a leakage in a dedicated tube, a problem of a failure in a suppression pressure, and the like, an analysis of the abnormal-modes, and the like in a simplified manner. PAPS valves are included, and an abnormality emulator inspecting an abnormal condition in a fluid path of a DUT by emulating characteristics of the fluid-circuit represented by each of a plurality of abnormal-modes having possibilities of occurring in the fluid path of the DUT through pressurization of a fluid pressure using a compressor-under-test and adjustment of the fluid pressure using the PAPS valves.
    Type: Application
    Filed: September 15, 2015
    Publication date: September 14, 2017
    Applicant: TAKASHIN CO., LTD.
    Inventors: Jun YOSHIOKA, Takuji SASAKI, Jun KOGAWA, Masaki FUJITA, Toshiki AKAHIRA
  • Publication number: 20170264112
    Abstract: Power-feeding units to which charge-scheduled devices are connected, charge-end-point detecting-circuits detecting charging-start timing and charging-end timing, reference-charge-period determining-circuits measuring reference-charge-periods, a priority-determining circuit determining priority orders of uses of charge-scheduled devices based on the charging-periods of the charge-scheduled devices, and charging-state displaying circuits displaying under-charging or charge-completed and the priority in the use order of the charge-scheduled devices are included.
    Type: Application
    Filed: September 18, 2015
    Publication date: September 14, 2017
    Applicant: TAKASHIN CO., LTD.
    Inventors: Tomohisa TANDAI, Jun YOSHIOKA, Hiroaki MIKAMI, Jun KOGAWA, Masaki FUJITA, Toshiki AKAHIRA
  • Patent number: 9719197
    Abstract: A multi-layer tubular woven construct includes two or more layers including an innermost layer and layer A that is a layer other than the innermost layer, layer A including a monofilament yarn serving as a weft yarn, the weft yarn extending spirally and circumferentially around the tubular woven construct to form the weft, the weft including threads lying adjacent to each other, the adjacent weft threads of the monofilament yarn having intervals larger than the diameter of the monofilament yarn.
    Type: Grant
    Filed: November 27, 2014
    Date of Patent: August 1, 2017
    Assignee: Toray Industries, Inc.
    Inventors: Hiroshi Tsuchikura, Satoshi Yamada, Masaki Fujita, Atsushi Kuwabara
  • Publication number: 20170157303
    Abstract: An antithrombogenic material includes: a coating material containing a skeletal structure composed of a polymer, a skeletal structure composed of 4-(aminomethyl)benzenecarboxyimidamide or benzene amidine, and a skeletal structure composed of methoxybenzenesulfonic acid amide; and a base material whose surface is coated with the coating material; wherein the coating material is covalently bound to the base material, and the peak abundance ratio of the carbonyl-derived component in the total component of the C1s peak as measured by X-ray photoelectron spectroscopy on the surface is not less than 1.0 atomic percent.
    Type: Application
    Filed: November 27, 2014
    Publication date: June 8, 2017
    Inventors: Masaki Fujita, Koji Kadowaki, Yuka Sakaguchi, Kazuhiro Tanahashi
  • Patent number: 9662233
    Abstract: An artificial blood vessel is a tubular fabric including a fiber layer containing an ultrafine fiber(s) and an ultrafine fiber layer in the inside of the fiber layer, the ultrafine fiber layer being composed of an ultrafine fiber(s) having a fiber diameter(s) of not less than 10 nm and not more than 3 ?m, wherein a quaternary ammonium group-containing polymer having alkyl groups each of a carbon number 10 or less is covalently bound to the ultrafine fiber(s); heparin is ionically bound to the quaternary ammonium group-containing polymer; and the residual heparin activity after washing with physiological saline at 37° C. for 30 minutes is 20 mIU/cm2 or more.
    Type: Grant
    Filed: April 10, 2014
    Date of Patent: May 30, 2017
    Assignee: Toray Industries, Inc.
    Inventors: Kazuhiro Tanahashi, Yuka Sakaguchi, Masaki Fujita, Koji Kadowaki, Hiroshi Tsuchikura, Satoshi Yamada
  • Publication number: 20170065397
    Abstract: An endovascular treatment aiding device is an endovascular treatment aiding device including a flexible shaft; a filter fixed to the shaft such that an opening section is formed in the proximal side, wherein a ring having elastic restoring force is fixed to the opening section, which filter is capable of being opened and closed in an umbrella-like manner, and is in a conical shape having a bottom formed by the ring when the filter is open; and a linear supporting member fixed to the ring and a part of the shaft such that they are connected to each other, which linear supporting member enables closing the filter by application of an external force to the proximal side; wherein coils formed with a radio-opaque material is/are wound around the ring; when the filter is closed, a plurality of mountains pointing toward the distal side and a plurality of valleys pointing toward the proximal side are alternately formed in the ring to form a shape in which the mountains are positioned close to each other, and the vall
    Type: Application
    Filed: May 8, 2015
    Publication date: March 9, 2017
    Applicant: Toray Industries, Inc.
    Inventors: Kanji Inoue, Takahiro Yagi, Masaki Fujita, Koji Kadowaki, Kazuhiro Tanahashi
  • Publication number: 20170049552
    Abstract: A treatment aiding device includes a flexible shaft; a filter; linear supporting members; an elastomer member composed of an elastomer in which a penetrating hole is formed, which elastomer member is arranged in the proximal side relative to the opening section of the filter such that the shaft penetrates the penetrating hole, wherein the outer diameter of the end face in which the penetrating hole is formed is larger than the outer diameter of the opening-section side of the filter when the filter is closed; and an outer tube in which a penetrating hole is formed, which outer tube is arranged in the proximal side relative to the opening section of the filter such that the shaft penetrates the penetrating hole in a state which allows movement of the shaft in the longitudinal direction; wherein the elastomer member is fixed in the distal side of the outer tube.
    Type: Application
    Filed: May 8, 2015
    Publication date: February 23, 2017
    Inventors: Kanji Inoue, Takahiro Yagi, Masaki Fujita, Koji Kadowaki, Kazuhiro Tanahashi
  • Patent number: 9561478
    Abstract: A separation membrane includes a membrane comprising a polymer, characterized in that a functional layer is formed on the surface in one side of the membrane, the peak area percentage of carbon derived from ester group measured by the electron spectroscopy for chemical analysis (ESCA) on the surface of the preceding functional layer is 0.1% (by atomic number) or more but not more than 10 (% by atomic number), and the peak area percentage of carbon derived from ester group measured by the electron spectroscopy for chemical analysis (ESCA) on the surface opposite to the functional layer is not more than 10 (% by atomic number). A separation membrane module suffering from little sticking of organic matters, proteins, platelets and so on is provided with the separation membrane as a built-in membrane.
    Type: Grant
    Filed: November 12, 2013
    Date of Patent: February 7, 2017
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Yoshiyuki Ueno, Masaki Fujita, Hiroyuki Sugaya