Patents by Inventor Hirofumi Tamai

Hirofumi Tamai 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: 20230111674
    Abstract: Provided is a pipette device that achieves both suction and discharge of a large amount of fluid and high-precision discharge of a minute amount of fluid. The pipette device includes: a first syringe 30 that is capable of suctioning fluid and is capable of discharging fluid with a predetermined discharge precision; a second syringe 40 that is capable of suctioning fluid and is capable of discharging fluid with a higher precision than the first syringe; a nozzle 70 provided in common to the first syringe 30 and the second syringe 40; a flow path 60 that causes the first syringe 30 and the second syringe 40 to be in communication with each other, and is in communication with the nozzle 70; and driving units 80, 90 configured to drive the first syringe 30 and the second syringe 40 such that the first syringe 30 and the second syringe 40 suction and discharge fluid from the nozzle 70 individually or in cooperation with each other.
    Type: Application
    Filed: April 6, 2021
    Publication date: April 13, 2023
    Inventors: Hirofumi Tamai, Hiroshi Oku, Yuki Okabe
  • Patent number: 11602745
    Abstract: A pipette module 10 has a pipette-module frame 12 attachable to the z-axis frame 120 of a liquid handling system 100. A translatory-motion frame 14 attached to the pipette-module frame 12 is movable with respect thereto by a motor 16. A pneumatic aspirator assembly 18 including a cylinder 20, tube 24, tube tip 26 and pressure sensor 28 is attached to the translatory-motion frame 14. A piston 22 disposed in the cylinder 20 is fixedly attached to the frame 12. A controller 30 for the pipette module 10 has a liquid surface detection mode which enables a pressure feedback control algorithm causing the motor 16 to move the translatory-motion frame 14 in a z-axis translator motion until a change in a pressure in the tip 26 as sensed by the pressure sensor 28 indicates that the tip 26 has made contact with the liquid surface 110.
    Type: Grant
    Filed: April 6, 2018
    Date of Patent: March 14, 2023
    Inventors: Hirofumi Tamai, Chaojun Zhou
  • Publication number: 20210008544
    Abstract: A pipette module 10 has a pipette-module frame 12 attachable to the z-axis frame 120 of a liquid handling system 100. A translatory-motion frame 14 attached to the pipette-module frame 12 is movable with respect thereto by a motor 16. A pneumatic aspirator assembly 18 including a cylinder 20, tube 24, tube tip 26 and pressure sensor 28 is attached to the translatory-motion frame 14. A piston 22 disposed in the cylinder 20 is fixedly attached to the frame 12. A controller 30 for the pipette module 10 has a liquid surface detection mode which enables a pressure feedback control algorithm causing the motor 16 to move the translatory-motion frame 14 in a z-axis translator motion until a change in a pressure in the tip 26 as sensed by the pressure sensor 28 indicates that the tip 26 has made contact with the liquid surface 110.
    Type: Application
    Filed: April 6, 2018
    Publication date: January 14, 2021
    Inventors: Hirofumi TAMAI, Chaojun ZHOU
  • Patent number: 10272006
    Abstract: A care method and a care robot that can simplify care and reduce the burden on a caregiver, in particular the burden on the caregiver during the transfer of a care receiver. A sheet is spread out on top of a bed, and the care receiver is laid on the sheet. The sheet is formed so that both ends thereof have parts to be held that are held by arms of a robot. The robot and the arms are positioned relative to the care receiver, and the robot is moved towards the bed so that the arms hold the parts to be held. The arms are raised by a predetermined distance, and when the arms are in the raised state, the robot is moved away from the bed.
    Type: Grant
    Filed: March 9, 2015
    Date of Patent: April 30, 2019
    Assignee: MUSCLE CORPORATION
    Inventors: Hirofumi Tamai, Satoshi Tamai
  • Patent number: 10045898
    Abstract: Provided is a robot which is easily operated and with which it is possible for a caregiver to transfer a person alone. A robot (R) provided with a traveling unit (M1), a hoisting unit (M2) provided to the traveling unit (M1), a tilting unit (M3) provided to the hoisting unit (M3), an operating unit (M4) provided to the tilting unit (M3), and a pair of arms, wherein: the tiling unit (M3) has a main tilting unit and an auxiliary tilting unit provided to the main tilting unit; and the auxiliary tilting unit has auxiliary tilting members which are provided to both ends of the main tilting member on the main tilting unit, holds the arms, and can rotate freely.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: August 14, 2018
    Assignee: MUSCLE CORPORATION
    Inventors: Hirofumi Tamai, Satoshi Tamai
  • Publication number: 20160228314
    Abstract: Provided is a robot which is easily operated and with which it is possible for a caregiver to transfer a person alone. A robot (R) provided with a traveling unit (M1), a hoisting unit (M2) provided to the traveling unit (M1), a tilting unit (M3) provided to the hoisting unit (M3), an operating unit (M4) provided to the tilting unit (M3), and a pair of arms, wherein: the tiling unit (M3) has a main tilting unit and an auxiliary tilting unit provided to the main tilting unit; and the auxiliary tilting unit has auxiliary tilting members (44, 48) which are provided to both ends of the main tilting member on the main tilting unit, holds the arms, and can rotate freely.
    Type: Application
    Filed: March 14, 2014
    Publication date: August 11, 2016
    Inventors: Hirofumi TAMAI, Satoshi TAMAI
  • Publication number: 20150173988
    Abstract: A care method and a care robot that can simplify care and reduce the burden on a caregiver, in particular the burden on the caregiver during the transfer of a care receiver. A sheet is spread out on top of a bed, and the care receiver is laid on the sheet. The sheet is formed so that both ends thereof have parts to be held that are held by arms of a robot. The robot and the arms are positioned relative to the care receiver, and the robot is moved towards the bed so that the arms hold the parts to be held. The arms are raised by a predetermined distance, and when the arms are in the raised state, the robot is moved away from the bed.
    Type: Application
    Filed: March 9, 2015
    Publication date: June 25, 2015
    Inventors: Hirofumi TAMAI, Satoshi TAMAI
  • Patent number: 7109610
    Abstract: A wireless linear motor comprising: a stationary stator having permanent magnets; a movable stage having coils and a controller with a transceiver for wirelessly communicating with an external data processing system, the controller adapted to energize the coils to position the stage over the stator in response to control signals from the external system; and, a frame having first and second electrically conductive linear guides for slideably mounting the stage over the stator, wherein each linear guide has a stage portion attached to the stage through a first electrical insulator, a frame portion attached to the frame through a second electrical insulator, a plurality of ball bearings disposed between and electrically coupling the stage and frame portions, and a conductor coupling the stage portion to the controller for providing electrical power from an external power supply to the controller through the frame portion of each guide.
    Type: Grant
    Filed: February 13, 2004
    Date of Patent: September 19, 2006
    Assignee: Muscle Corporation
    Inventor: Hirofumi Tamai
  • Patent number: 6840185
    Abstract: A method for minimizing contact between a needle point and a needle thread in a computer controlled embroidery machine, to prevent breakage of the needle thread by the needle point upon penetration of a workpiece during stitching. The method includes the steps of: determining a first straight path between a current needle penetration location and a next needle penetration location; and, moving to the next needle penetration location along a second non-straight path so that the needle thread is pulled away from the needle point.
    Type: Grant
    Filed: October 9, 2003
    Date of Patent: January 11, 2005
    Assignee: Muscle Corporation
    Inventor: Hirofumi Tamai
  • Publication number: 20040227412
    Abstract: A wireless linear motor comprising: a stationary stator having permanent magnets; a movable stage having coils and a controller with a transceiver for wirelessly communicating with an external data processing system, the controller adapted to energize the coils to position the stage over the stator in response to control signals from the external system; and, a frame having first and second electrically conductive linear guides for slideably mounting the stage over the stator, wherein each linear guide has a stage portion attached to the stage through a first electrical insulator, a frame portion attached to the frame through a second electrical insulator, a plurality of ball bearings disposed between and electrically coupling the stage and frame portions, and a conductor coupling the stage portion to the controller for providing electrical power from an external power supply to the controller through the frame portion of each guide.
    Type: Application
    Filed: February 13, 2004
    Publication date: November 18, 2004
    Inventor: Hirofumi Tamai
  • Publication number: 20040129191
    Abstract: A method for minimizing contact between a needle point and a needle thread in a computer controlled embroidery machine, to prevent breakage of the needle thread by the needle point upon penetration of a workpiece during stitching. The method includes the steps of: determining a first straight path between a current needle penetration location and a next needle penetration location; and, moving to the next needle penetration location along a second non-straight path so that the needle thread is pulled away from the needle point.
    Type: Application
    Filed: October 9, 2003
    Publication date: July 8, 2004
    Inventor: Hirofumi Tamai
  • Patent number: 6678573
    Abstract: A sewing machine comprising one or more motion means to effect a sewing function, each motion means having a dedicated motion control processor responsive to sewing commands addressed to said motion control processor, for controlling said motion means to effect said sewing faction; and a high speed communications interface for exchanging information between each said motion control processor and an external computer, whereby said sewing commands are determined by the external computer.
    Type: Grant
    Filed: August 20, 2002
    Date of Patent: January 13, 2004
    Inventor: Hirofumi Tamai
  • Publication number: 20030056702
    Abstract: A sewing machine comprising one or more motion means to effect a sewing function, each motion means having a dedicated motion control processor responsive to sewing commands addressed to said motion control processor, for controlling said motion means to effect said sewing faction; and a high speed communications interface for exchanging information between each said motion control processor and an external computer, whereby said sewing commands are determined by the external computer.
    Type: Application
    Filed: August 20, 2002
    Publication date: March 27, 2003
    Inventor: Hirofumi Tamai