Patents by Inventor Eiji Tamura

Eiji Tamura 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).

  • Publication number: 20230042810
    Abstract: A blood-viscosity measurement blood collection tube includes a bottomed tube provided with an opening at one end in a length direction and a bottom at the other in the length direction, and a sealing plug. The sealing plug includes a sealing part fitted in the opening of the bottomed tube in a hermetically sealed state, a cap part, and a thin connecting part. The sealing part includes a vertically penetrated insertion hole. The sealing part of the sealing plug is fitted in the opening of the bottomed tube, and an inner space of the bottomed tube is in a negative pressure state. The cap part is configured to be removed from the sealing plug by breaking the connecting part with an external force applied to the cap part, and the insertion hole is exposed at an upper surface of the sealing part when the cap part has been removed.
    Type: Application
    Filed: December 27, 2019
    Publication date: February 9, 2023
    Applicants: MEDICAL UNIVERSITY OF VIENNA, KANSAI UNIVERSITY, TAISEI KAKO CO., LTD., ASAHI GROUP HOLDINGS, LTD.
    Inventors: Roberto PLASENZOTTI, Bruno Karl PODESSER, Hideki YAMAMOTO, Yusuke NEGI, Takafumi YABUTA, Hidenari NISHIKURA, Eiji TAMURA, Kimito KAWAMURA
  • Publication number: 20230031399
    Abstract: A blood-viscosity measurement method uses a collection tube includes a bottomed tube having an opening at one end in a length direction and a bottom at the other end in the length direction. A sealing plug includes a sealing part fitted in the opening of the bottomed tube in a hermetically sealed state, a cap part, and a thin connecting part. The sealing part includes a vertically penetrated insertion hole and fitted in the opening of the bottomed tube. The method includes collecting blood using a negative pressure state of the inner space, applying an external force to the cap portion to break the connecting part and removing the cap part to expose the insertion hole at an upper surface of the sealing part, and obtaining blood viscosity by causing a viscosity-measurement falling body to fall from the insertion hole, and measuring a fall terminal velocity of the falling body.
    Type: Application
    Filed: December 27, 2019
    Publication date: February 2, 2023
    Applicants: MEDICAL UNIVERSITY OF VIENNA, KANSAI UNIVERSITY, TAISEI KAKO CO., LTD., ASAHI GROUP HOLDINGS, LTD.
    Inventors: Roberto PLASENZOTTI, Bruno Karl. PODESSER, Hideki YAMAMOTO, Yusuke NEGI, Takafumi YABUTA, Hidenari NISHIKURA, Eiji TAMURA, Kimito KAWAMURA
  • Patent number: 10927803
    Abstract: In the present invention, two side-section side surfaces and each horizontal passage run along a fuel flow direction and have a linear section, and an end-section side surface formed between the two side-section side surfaces and forming an upstream-side end portion has a curved section connected to the side-section side surfaces and. When a fuel inlet and the horizontal passages are projected onto a plane perpendicular to a valve axial center, a projected line of the linear section of each of the horizontal passages extends to a place intersecting a projected line of the opening edge of the fuel inlet, and the upstream-side end portion of each of the horizontal passages extends toward the inside of the opening edge.
    Type: Grant
    Filed: February 16, 2017
    Date of Patent: February 23, 2021
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Takahiro Saito, Nobuaki Kobayashi, Akihiro Yamazaki, Eiji Tamura
  • Publication number: 20200109688
    Abstract: A fuel-injection valve provided with a fuel filter (13) in a fuel supply unit into which fuel flows, wherein: the fuel filter (13) is provided with a filtering part (X1) that is disposed along the circumferential direction of the fuel filter (13) and along the central axis line (13x) thereof and that is provided with a net-like member (13c) which captures foreign objects mixed in with fuel flowing from the radially inner side to the radially outer side of the fuel filter (13); and the fuel filter (13) has, on the upstream side from the filtering part (X1), first fuel swirl generation units (13d-1, 13d-2, 13d-4) which generate swirl in the fuel that flows down along the inner circumferential surface of the filtering part (X1).
    Type: Application
    Filed: March 26, 2018
    Publication date: April 9, 2020
    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Eiji TAMURA, Akihiro YAMAZAKI, Takahiro SAITO, Masaki NAGAOKA
  • Publication number: 20190195182
    Abstract: A fuel injection valve includes a valve seat 15b and a valve body 27c that cooperate with each other to open and close a fuel passage, a movable element 27 that has the valve body 27c provided at one end thereof and has a fuel passage formed therein, a valve seat member 15 having the valve seat 15b formed thereon, an upstream-side communication hole 27boa that is located upstream of the flow of fuel and connects the inside and outside of the movable element 27, and a downstream-side communication hole 27bob that is located downstream of the flow of fuel and connects the inside and outside of the movable element, in which a guide section for the valve body 27c, where the valve seat member 15 and the valve body 27c are in sliding contact with each other, is provided downstream of the downstream-side communication hole 27bob and in which a fuel passage 17h for connecting in the center axis direction the upstream side and downstream side of the guide section is provided at the same angular position in the circumf
    Type: Application
    Filed: March 5, 2019
    Publication date: June 27, 2019
    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Takahiro SAITO, Nobuaki KOBAYASHI, Eiji TAMURA
  • Publication number: 20190101087
    Abstract: In the present invention, two side-section side surfaces and each horizontal passage run along a fuel flow direction and have a linear section, and an end-section side surface formed between the two side-section side surfaces and forming an upstream-side end portion has a curved section connected to the side-section side surfaces and. When a fuel inlet and the horizontal passages are projected onto a plane perpendicular to a valve axial center, a projected line of the linear section of each of the horizontal passages extends to a place intersecting a projected line of the opening edge of the fuel inlet, and the upstream-side end portion of each of the horizontal passages extends toward the inside of the opening edge.
    Type: Application
    Filed: February 16, 2017
    Publication date: April 4, 2019
    Inventors: Takahiro SAITO, Nobuaki KOBAYASHI, Akihiro YAMAZAKI, Eiji TAMURA
  • Patent number: 10247158
    Abstract: A fuel injection valve includes a valve seat 15b and a valve body 27c that cooperate with each other to open and close a fuel passage, a movable element 27 that has the valve body 27c provided at one end thereof and has a fuel passage formed therein, a valve seat member 15 having the valve seat 15b formed thereon, an upstream-side communication hole 27boa that is located upstream of the flow of fuel and connects the inside and outside of the movable element 27, and a downstream-side communication hole 27bob that is located downstream of the flow of fuel and connects the inside and outside of the movable element, in which a guide section for the valve body 27c, where the valve seat member 15 and the valve body 27c are in sliding contact with each other, is provided downstream of the downstream-side communication hole 27bob and in which a fuel passage 17h for connecting in the center axis direction the upstream side and downstream side of the guide section is provided at the same angular position in the circumf
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: April 2, 2019
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Takahiro Saito, Nobuaki Kobayashi, Eiji Tamura
  • Patent number: 10233884
    Abstract: The present invention includes a bobbin having a winding part around which a coil winding is wound, a terminal extending from the bobbin in the axial direction of the bobbin, and a wrapping part which is provided to the terminal and in which a terminal lead wire pulled out from a coil part that is wound around the winding part is wrapped and fused. The terminal lead wire wired between the bobbin and the wrapping part in a state of being in contact with the surface of the terminal. The peripheries of the bobbin, the wiring part of the terminal lead wire and the wrapping part are covered with resin.
    Type: Grant
    Filed: August 3, 2016
    Date of Patent: March 19, 2019
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Eiji Tamura, Nobuaki Kobayashi, Takahiro Saito, Akihiro Yamazaki
  • Publication number: 20180230953
    Abstract: The present invention includes a bobbin having a winding part around which a coil winding is wound, a terminal extending from the bobbin in the axial direction of the bobbin, and a wrapping part which is provided to the terminal and in which a terminal lead wire pulled out from a coil part that is wound around the winding part is wrapped and fused. The terminal lead wire wired between the bobbin and the wrapping part in a state of being in contact with the surface of the terminal. The peripheries of the bobbin, the wiring part of the terminal lead wire and the wrapping part are covered with resin.
    Type: Application
    Filed: August 3, 2016
    Publication date: August 16, 2018
    Inventors: Eiji TAMURA, Nobuaki KOBAYASHI, Takahiro SAITO, Akihiro YAMAZAKI
  • Patent number: 10047745
    Abstract: Provided is a configuration where a stator section is fastened to an electric motor part-accommodating portion at a location where an end surface of the stator section projects outwardly from an end plane of an opening of an electric motor part-accommodating portion thereby bringing the center of gravity of an electric motor part closer to the end plane of the opening of the electric motor part-accommodating portion. With this, the center of gravity of the electric motor part is brought closer to the end plane of the opening of the electric motor part-accommodating portion so as to make a rotor section difficult to receive the influence of oscillations, and consequently a phenomenon where the rotor section is shaken under the influence of oscillations can be restrained.
    Type: Grant
    Filed: May 26, 2015
    Date of Patent: August 14, 2018
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventor: Eiji Tamura
  • Publication number: 20180045156
    Abstract: A fuel injection valve includes a valve seat 15b and a valve body 27c that cooperate with each other to open and close a fuel passage, a movable element 27 that has the valve body 27c provided at one end thereof and has a fuel passage formed therein, a valve seat member 15 having the valve seat 15b formed thereon, an upstream-side communication hole 27boa that is located upstream of the flow of fuel and connects the inside and outside of the movable element 27, and a downstream-side communication hole 27bob that is located downstream of the flow of fuel and connects the inside and outside of the movable element, in which a guide section for the valve body 27c, where the valve seat member 15 and the valve body 27c are in sliding contact with each other, is provided downstream of the downstream-side communication hole 27bob and in which a fuel passage 17h for connecting in the center axis direction the upstream side and downstream side of the guide section is provided at the same angular position in the circumf
    Type: Application
    Filed: February 5, 2016
    Publication date: February 15, 2018
    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Takahiro SAITO, Nobuaki KOBAYASHI, Eiji TAMURA
  • Publication number: 20160215776
    Abstract: Provided is a configuration where a stator section is fastened to an electric motor part-accommodating portion at a location where an end surface of the stator section projects outwardly from an end plane of an opening of an electric motor part-accommodating portion thereby bringing the center of gravity of an electric motor part closer to the end plane of the opening of the electric motor part-accommodating portion. With this, the center of gravity of the electric motor part is brought closer to the end plane of the opening of the electric motor part-accommodating portion so as to make a rotor section difficult to receive the influence of oscillations, and consequently a phenomenon where the rotor section is shaken under the influence of oscillations can be restrained.
    Type: Application
    Filed: May 26, 2015
    Publication date: July 28, 2016
    Inventor: Eiji TAMURA
  • Patent number: 8642070
    Abstract: The coating composition which coats the biologically active substance includes at least one protective material selected from the group consisting of a hardened animal fat, a hardened vegetable oil, a linear or branched, saturated or unsaturated aliphatic monocarboxylic acid having 12 to 22 carbon atoms, a fatty acid ester, and a wax group; lecithin; and at least one preservative selected from a propionic acid or its salt, a sorbic acid or its salt, a benzoic acid or its salt, a dehydroacetic acid or its salt, parahydroxybenzoic acid esters, an imazalil, a thiabendazole, an orthophenyl phenol, an orthophenyl phenol natrium, and a diphenyl.
    Type: Grant
    Filed: April 27, 2005
    Date of Patent: February 4, 2014
    Assignee: Bio Science Co., Ltd.
    Inventors: Akira Okutani, Hiroaki Motoki, Eiji Tamura, Yumi Takashima, Shunsuke Sakai
  • Patent number: 8573029
    Abstract: A configuration capable of suppressing a variation in the measurement result of a falling body viscometer is proposed. Provided is a method of sending a falling body of a falling body viscometer when sending the falling body loaded in a loading unit of a loading holder into a measured substance, in which the falling body of the falling body viscometer is sent out in a manner such that the falling body is sent out from the loading unit by pressing the falling body using an extruding pin, thereby suppressing a variation in the measurement result.
    Type: Grant
    Filed: May 21, 2010
    Date of Patent: November 5, 2013
    Assignee: Asahi Group Holdings, Ltd.
    Inventors: Kimito Kawamura, Motoyuki Tagashira, Eiji Tamura
  • Patent number: 8555706
    Abstract: A novel configuration for a falling body viscometer using an electromagnetic induction sensor, wherein the time at which a falling body passes through the electromagnetic induction sensor can be specified with enhanced accuracy. This enables the falling speed of the falling body and in turn the viscosity of a fluid to be measured with increased accuracy. A falling body viscometer is provided with a first pair of coils located at the outer periphery of a measuring container so as to be separated from each other in the vertical direction, and also with a second pair of coils located at the outer periphery of the measuring container so as to be separated from each other in the vertical direction and to be located below the first coil pair, a specified distance away therefrom.
    Type: Grant
    Filed: September 14, 2009
    Date of Patent: October 15, 2013
    Assignee: Asahi Group Holdings, Ltd.
    Inventors: Kimito Kawamura, Motoyuki Tagashira, Eiji Tamura
  • Patent number: 8492485
    Abstract: Provided is a polycarbonate-based resin composition for sliding use including 0.01 to 1 part by mass of an antioxidant with respect to 100 parts by mass of a polycarbonate-polyorganosiloxane copolymer which has structural units represented by a general formula (A) and structural units represented by a general formula (B), which contains a polyorganosiloxane block moiety containing the structural units represented by the general formula (B) at a content of 1 to 30 mass %, and which has an average repetition number of the structural units represented by the general formula (B) of 110 to 1000. The polycarbonate-based resin composition for sliding use has a specific structure having improved wear resistance, in particular, improved sliding property. Also provided is a molded article using the resin composition, and excellent in wear resistance and sliding property.
    Type: Grant
    Filed: July 6, 2009
    Date of Patent: July 23, 2013
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Yasuhiro Ishikawa, Eiji Tamura
  • Patent number: 8485018
    Abstract: A technique used to determine a falling state of a falling body, such as whether the falling body reaches a falling termination speed and falls uniformly or falls with a change in the speed is provided. In particular, a method of determining a falling state of a falling body passing through a measured substance inserted into a measuring container is provided, the method including: measuring a first elapsed time which is a time interval between extreme values of two potentials generated in a first coil pair when the falling body passes through the first coil pair and a second elapsed time which is a time interval between extreme values of two potentials generated in a second coil pair when the falling body passes through the second coil pair; and determining the falling state of the falling body by comparing the first elapsed time with the second elapsed time.
    Type: Grant
    Filed: May 21, 2010
    Date of Patent: July 16, 2013
    Assignee: Asahi Group Holdings, Ltd.
    Inventors: Kimito Kawamura, Motoyuki Tagashira, Eiji Tamura
  • Patent number: 8487042
    Abstract: A resin composition including the following components (A) to (C): (A) polyarylene sulfide resin: 20 wt %<component (A)?60 wt %; (B) hexagonal boron nitride: 8 wt %?component (B)?55 wt %; and (C) flat glass fiber: 15 wt % ?component (C)?55 wt % wherein the amount ratio of each component is a weight percentage relative to the total amount of the components (A) to (C).
    Type: Grant
    Filed: May 2, 2008
    Date of Patent: July 16, 2013
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Naoto Okubo, Wataru Kosaka, Eiji Tamura
  • Publication number: 20120186327
    Abstract: A configuration capable of suppressing a variation in the measurement result of a falling body viscometer is proposed. Provided is a method of sending a falling body of a falling body viscometer when sending the falling body loaded in a loading unit of a loading holder into a measured substance, in which the falling body of the falling body viscometer is sent out in a manner such that the falling body is sent out from the loading unit by pressing the falling body using an extruding pin, thereby suppressing a variation in the measurement result.
    Type: Application
    Filed: May 21, 2010
    Publication date: July 26, 2012
    Applicant: Asahi Group Holdings, Ltd.
    Inventors: Kimito Kawamura, Motoyuki Tagashira, Eiji Tamura
  • Publication number: 20120186326
    Abstract: A technique used to determine a falling state of a falling body, such as whether the falling body reaches a falling termination speed and falls uniformly or falls with a change in the speed is provided. In particular, a method of determining a falling state of a falling body passing through a measured substance inserted into a measuring container is provided, the method including: measuring a first elapsed time which is a time interval between extreme values of two potentials generated in a first coil pair when the falling body passes through the first coil pair and a second elapsed time which is a time interval between extreme values of two potentials generated in a second coil pair when the falling body passes through the second coil pair; and determining the falling state of the falling body by comparing the first elapsed time with the second elapsed time.
    Type: Application
    Filed: May 21, 2010
    Publication date: July 26, 2012
    Applicant: Asahi Group Holdings, Ltd.
    Inventors: Kimito Kawamura, Motoyuki Tagashira, Eiji Tamura