Patents by Inventor Eiichi Fukuhara

Eiichi Fukuhara 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: 20220001398
    Abstract: A valve bridge portion, in which four valves A to D are connected in a bridge shape, is interposed between sample lines to a rotor of a continuous centrifuge. A microcomputer is able to open and close the valves A to D independently and is capable of switching between top feed and bottom feed to the sample line. When sample supply is started, switching between the top feed and the bottom feed is performed multiple times, and in the middle of switching and sending a sample liquid, the microcomputer executes an operation of temporarily increasing a liquid pressure multiple times by temporarily closing an outlet valve (C or D) and then immediately opening the valve. As a result of repeating the operation of switching between the said sample feed directions and temporarily increasing the liquid pressure, air that accumulates inside the rotor can be effectively discharged.
    Type: Application
    Filed: October 25, 2019
    Publication date: January 6, 2022
    Applicant: Eppendorf Himac Technologies Co., Ltd.
    Inventors: Eiichi FUKUHARA, Hiroatsu TOI
  • Patent number: 8998789
    Abstract: A continuous centrifuge includes: a cylindrical rotor configured to separate a specimen; a centrifuging chamber accommodating the rotor; a driving unit configured to rotate the rotor; a specimen line configured to continuously supply and discharge the specimen to and from the rotor during rotation of the rotor; and a controller configured to control the driving unit. The control unit has a cleansing mode which flows a liquid chemical through the specimen line so as to conduct sterilization and/or cleansing while rotating the rotor.
    Type: Grant
    Filed: February 4, 2011
    Date of Patent: April 7, 2015
    Assignee: Hitachi Koki Co., Ltd.
    Inventors: Hiroatsu Toi, Eiichi Fukuhara
  • Publication number: 20130331251
    Abstract: A centrifugal machine including: a rotor which is configured to accommodate a sample; a driving part which is configured to rotate the rotor; a control part which is configured to control the driving part; an operating part; and a record part, wherein the operating part is provided with a login screen to which first user information is configured to be inputted at the start of an operation, and a user change screen to which second user information different from the first user information inputted to the login screen is configured to be inputted, and wherein the record part is configured to record the first user information, the second user information, a change time at which the user information is changed, and a rotating speed of the rotor.
    Type: Application
    Filed: June 6, 2013
    Publication date: December 12, 2013
    Inventors: Hiroatsu TOI, Eiichi Fukuhara, Takato Komura
  • Publication number: 20130017943
    Abstract: A continuous centrifuge including: a rotor configured to separate a sample; a centrifuge chamber configured to accommodate the rotor; a driving part configured to rotate the rotor; a sample line configured to continuously supply and discharge the sample to and from the rotor during rotation of the rotor; and an air detecting sensor provided to a supply side and a discharge side of the sample line.
    Type: Application
    Filed: July 11, 2012
    Publication date: January 17, 2013
    Applicant: HITACHI KOKI CO., LTD.
    Inventors: Hiroatsu Toi, Eiichi Fukuhara
  • Patent number: 8038592
    Abstract: A centrifuge includes a rotor, a rotation shaft which has a through-hole communicated with an interior of the rotor, a face seal which slidingly contacts an end of the rotation shaft and has a path communicated with the through-hole of the rotation shaft, a wall member which accommodates the face seal, a sample transfer unit which transfers a sample through the rotor, and a coolant circulation unit which circulates a coolant to the wall member. The sample transfer unit transfers the sample by pressure so that a pressure of the sample flowing through a portion where the rotation shaft and the face seal slidingly contact with each other is higher than a pressure of the coolant flowing through the wall member.
    Type: Grant
    Filed: September 24, 2009
    Date of Patent: October 18, 2011
    Assignee: Hitachi Koki Co., Ltd.
    Inventors: Hiroatsu Toi, Eiichi Fukuhara
  • Publication number: 20110190111
    Abstract: A continuous centrifuge includes: a cylindrical rotor configured to separate a specimen; a centrifuging chamber accommodating the rotor; a driving unit configured to rotate the rotor; a specimen line configured to continuously supply and discharge the specimen to and from the rotor during rotation of the rotor; and a controller configured to control the driving unit. The control unit has a cleansing mode which flows a liquid chemical through the specimen line so as to conduct sterilization and/or cleansing while rotating the rotor.
    Type: Application
    Filed: February 4, 2011
    Publication date: August 4, 2011
    Applicant: HITACHI KOKI CO., LTD.
    Inventors: Hiroatsu TOI, Eiichi FUKUHARA
  • Publication number: 20100075823
    Abstract: A centrifuge includes a rotor, a rotation shaft which has a through-hole communicated with an interior of the rotor, a face seal which slidingly contacts an end of the rotation shaft and has a path communicated with the through-hole of the rotation shaft, a wall member which accommodates the face seal, a sample transfer unit which transfers a sample through the rotor, and a coolant circulation unit which circulates a coolant to the wall member. The sample transfer unit transfers the sample by pressure so that a pressure of the sample flowing through a portion where the rotation shaft and the face seal slidingly contact with each other is higher than a pressure of the coolant flowing through the wall member.
    Type: Application
    Filed: September 24, 2009
    Publication date: March 25, 2010
    Inventors: Hiroatsu TOI, Eiichi Fukuhara