Patents by Inventor Nobuhisa Suhara
Nobuhisa Suhara 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).
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Publication number: 20240125321Abstract: A uniaxial eccentric screw pump includes: a stator 8 having a through hole 8a whose inner surface is formed in a female screw shape; a rotor 14 that is a male screw shaft body inserted into the through hole 8a of the stator 8; a plurality of shims 9 that are arranged on a radially outside of the stator 8 in a range from one end to the other end of the stator 8, are in surface contact with an outer surface of the stator 8, are capable of compressing the stator 8 by moving radially inward with respect to the stator 8, and have, on an outer surface, an inclined surface 18 gradually inclined radially inward or outward toward one end; and an adjustment member 10 that is movable in an axial direction with respect to the stator 8 and has a pressing part 26 that can press the inclined surface 18 of each of the shims 9.Type: ApplicationFiled: June 29, 2020Publication date: April 18, 2024Inventors: Nobuhisa SUHARA, Takashi SATO
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Patent number: 11867172Abstract: A uniaxial eccentric screw pump includes: a rotor 1 including a shaft body of a male screw type; a stator 2 having a through hole 2a of a female screw type through which the rotor 1 is inserted; a casing 3 connected to one end side of the stator 2; an end stud 4 connected, to the other end side of the stator 2; and a position adjusting member 5 that adjusts a relative position of the stator 2 with respect to the rotor 1 in an axial direction.Type: GrantFiled: June 29, 2020Date of Patent: January 9, 2024Assignee: HEISHIN Ltd.Inventor: Nobuhisa Suhara
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Publication number: 20220299025Abstract: A uniaxial eccentric screw pump includes: a rotor 1 including a shaft body of a male screw type; a stator 2 having a through hole 2a of a female screw type through which the rotor 1 is inserted; a casing 3 connected to one end side of the stator 2; an end stud 4 connected, to the other end side of the stator 2; and a position adjusting member 5 that adjusts a relative position of the stator 2 with respect to the rotor 1 in an axial direction.Type: ApplicationFiled: June 29, 2020Publication date: September 22, 2022Inventor: Nobuhisa SUHARA
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Patent number: 10408235Abstract: Provided is an accumulator which can surely discharge a collected fluid material in a first-in first-out manner without causing stagnation of the fluid material. The accumulator includes a housing having a temporarily accumulating space configured to change an inner volume thereof in an axial direction. The housing includes a supply port and a discharge port formed at positions spaced apart from each other in the axial direction and communicating with the temporarily accumulating space. The housing also includes a flow passage for uniformly supplying a fluid material into the temporarily accumulating space through the supply port.Type: GrantFiled: August 3, 2017Date of Patent: September 10, 2019Assignee: HEISHIN Ltd.Inventor: Nobuhisa Suhara
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Publication number: 20180051719Abstract: Provided is an accumulator which can surely discharge a collected fluid material in a first-in first-out manner without causing stagnation of the fluid material. The accumulator includes a housing having a temporarily accumulating space configured to change an inner volume thereof in an axial direction. The housing includes a supply port and a discharge port formed at positions spaced apart from each other in the axial direction and communicating with the temporarily accumulating space. The housing also includes a flow passage for uniformly supplying a fluid material into the temporarily accumulating space through the supply port.Type: ApplicationFiled: August 3, 2017Publication date: February 22, 2018Inventor: Nobuhisa SUHARA
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Patent number: 9816503Abstract: A uniaxial eccentric screw pump for rotating a rotor about its axis and revolving the rotor without involving complicated operations and control is provided. The uniaxial eccentric screw pump includes a rotor drive mechanism capable of revolving a rotor while rotating the rotor about its axis. The rotor drive mechanism includes a rotation power transmission member rotatable about a predetermined center axis, and a revolution track formation member capable of revolving a proximal shaft portion of the rotor while allowing rotation of the proximal shaft portion about its axis. The rotor drive mechanism distributes power output from the same motor in parallel and transmit the power to the rotation power transmission member and the revolution track formation member, enabling the rotation power transmission member and the revolution track formation member to rotate about their axes while being synchronized mechanically, and enabling the rotor to revolve while rotating about its axis.Type: GrantFiled: May 19, 2014Date of Patent: November 14, 2017Assignee: HEISHIN LTD.Inventor: Nobuhisa Suhara
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Publication number: 20170008023Abstract: The purpose of the present invention is to provide a nozzle and an application apparatus which can obtain sufficient application quality even when fluid with high viscosity is applied, and a method of applying the fluid thereof. The nozzle includes a discharging means having a wide discharge port that is opened so that the fluid is dischargeable in a belt shape to be applied to an application object, and a cutting means for cutting the fluid discharged from the discharge port. In the nozzle, the cutting means is cuttable of the fluid by a wire that is movable from one side to the other side of an opening area that constitutes the discharge port.Type: ApplicationFiled: January 26, 2015Publication date: January 12, 2017Applicant: HEISHIN LTD.Inventors: Nobuhisa SUHARA, Hideaki WAKIZAWA
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Publication number: 20160102664Abstract: A uniaxial eccentric screw pump for rotating a rotor about its axis and revolving the rotor without involving complicated operations and control is provided. The uniaxial eccentric screw pump includes a rotor drive mechanism capable of revolving a rotor while rotating the rotor about its axis. The rotor drive mechanism includes a rotation power transmission member rotatable about a predetermined center axis, and a revolution track formation member capable of revolving a proximal shaft portion of the rotor while allowing rotation of the proximal shaft portion about its axis. The rotor drive mechanism distributes power output from the same motor in parallel and transmit the power to the rotation power transmission member and the revolution track formation member, enabling the rotation power transmission member and the revolution track formation member to rotate about their axes while being synchronized mechanically, and enabling the rotor to revolve while rotating about its axis.Type: ApplicationFiled: May 19, 2014Publication date: April 14, 2016Inventor: Nobuhisa SUHARA
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Patent number: 8622689Abstract: A rotor drive mechanism and pump apparatus according to the present invention may cause an external screw type rotor of a uniaxial eccentric screw pump to rotate and carry out a revolution movement. The rotor drive mechanism further comprises a shaft sealing structure configured such that a gap between an outer peripheral portion of an end portion of the revolution shaft is located on the external screw type rotor side and an inner peripheral portion of the casing in the pump apparatus is sealed. The rotor drive mechanism provides for a reduced amount of heat and vibrations to be generated when the rotor is rotated at high speed and further allows for lowering of contact pressure between an outer surface of the rotor and an inner surface of a stator inner hole.Type: GrantFiled: August 8, 2008Date of Patent: January 7, 2014Assignee: Heishin Sobi Kabushiki KaishaInventors: Teruaki Akamatsu, Mikio Yamashita, Nobuhisa Suhara
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Publication number: 20130327269Abstract: A variable discharge width device includes a hollow outer cylindrical part where inside and outside thereof communicate with each other via a discharge port, and an inner cylindrical part rotatable inside the outer cylindrical part along a circumferential wall of the outer cylindrical part. The inner cylindrical part can introduce fluid thereinto, and has a circumferential part opening formed in the circumferential wall so that inside and outside of the inner cylindrical part communicate with each other. The circumferential part opening is formed so that an opening width thereof changes in the circumferential direction of the inner cylindrical part. The variable discharge width device is capable of discharging the fluid introduced into the inner cylindrical part, from a communicating area formed by intersecting the circumferential part opening and the discharge port.Type: ApplicationFiled: December 5, 2011Publication date: December 12, 2013Applicant: HEISHIN Ltd.Inventor: Nobuhisa Suhara
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Patent number: 8561920Abstract: In the present invention, functions of both a nozzle change drive mechanism configured to move a desired one of a plurality of nozzles to an ejection position and a nozzle moving drive mechanism configured to move the desired nozzle to apply a fluid to an application surface are realized by the nozzle moving drive mechanism. The present invention includes: a rotating portion (27) having first to third nozzles (23); a base portion (28) configured to support the rotating portion (27); a variable nozzle (22) configured to move a desired one (23) of the first to third nozzles to an ejection position (T) to eject a fluid, supplied from the base portion (28) side, from the desired nozzle; an engaging portion (47) provided at the rotating portion (27); and an engaged portion (48) provided at a mounting base (50), wherein the desired nozzle (23) is moved to the ejection position (T) by moving the base portion (28) by a robot arm with the engaging portion (47) engaging with the engaged portion (48).Type: GrantFiled: October 7, 2009Date of Patent: October 22, 2013Assignee: Heishin LtdInventor: Nobuhisa Suhara
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Patent number: 8449275Abstract: A pump apparatus includes a first rotor drive mechanism configured to transfer rotation of an input shaft portion to an output shaft portion coupled to an external screw type rotor of a uniaxial eccentric screw pump, the input shaft portion being rotated with a central axis thereof kept in a certain position, and a uniaxial eccentric screw pump. The output shaft portion is rotatably provided via a bearing at a position eccentrically located with respect to the input shaft portion. The rotation of the input shaft portion is transferred through a first power transmission mechanism, including an inner gear, to the output shaft portion to cause the output shaft portion to carry out an eccentric rotational movement. The input shaft portion and the output shaft portion are arranged inside a pitch circle of the inner gear.Type: GrantFiled: January 29, 2008Date of Patent: May 28, 2013Assignee: Heishin Sobi Kabushiki KaishaInventors: Teruaki Akamatsu, Mikio Yamashita, Nobuhisa Suhara
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Publication number: 20110204102Abstract: In the present invention, functions of both a nozzle change drive mechanism configured to move a desired one of a plurality of nozzles to an ejection position and a nozzle moving drive mechanism configured to move the desired nozzle to apply a fluid to an application surface are realized by the nozzle moving drive mechanism. The present invention includes: a rotating portion (27) having first to third nozzles (23); a base portion (28) configured to support the rotating portion (27); a variable nozzle (22) configured to move a desired one (23) of the first to third nozzles to an ejection position (T) to eject a fluid, supplied from the base portion (28) side, from the desired nozzle; an engaging portion (47) provided at the rotating portion (27); and an engaged portion (48) provided at a mounting base (50), wherein the desired nozzle (23) is moved to the ejection position (T) by moving the base portion (28) by a robot arm with the engaging portion (47) engaging with the engaged portion (48).Type: ApplicationFiled: October 7, 2009Publication date: August 25, 2011Applicant: HEISHIN Ltd.Inventor: Nobuhisa Suhara
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Publication number: 20110033279Abstract: To provide a rotor drive mechanism which realizes that a rotor rotating at high speed can be used by reducing the amount of heat and vibrations generated when the rotor is rotated at high speed and lowering a contact pressure between an outer surface of the rotor and an inner surface of a stator inner hole or preventing the outer surface of the rotor and the inner surface of the stator inner hole from contacting each other. A rotor drive mechanism (53) is capable of causing an external screw type rotor (22) of an uniaxial eccentric screw pump (23) to rotate and carry out a revolution movement, the uniaxial eccentric screw pump (23) is configured such that the external screw type rotor (22) is attached to an inner hole (29a) of an internal screw type stator (29), and the external screw type rotor (22) is caused to rotate by a rotation speed control driving portion (26) and is caused to carry out a revolution movement by a revolution speed control driving portion (24).Type: ApplicationFiled: August 8, 2008Publication date: February 10, 2011Applicant: Heishin Sobi Kabushiki KaishaInventors: Teruaki Akamatsu, Mikio Yamashita, Nobuhisa Suhara
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Publication number: 20100092317Abstract: An object of the present invention is to provide a uniaxial eccentric screw pump capable of transferring and filling a fluid while realizing high flow rate accuracy, low pulsation, and long life. A uniaxial eccentric screw pump (11) in which an external screw type rotor (12) is fittingly inserted in an inner hole (13a) of an internal screw type stator (13), the rotor (12) and the stator (13) are separately, rotatably supported, and a rotation central axis of the rotor (12) and a rotation central axis of the stator (13) are spaced apart from each other is configured such that the rotor (12) and the stator (13) are separately rotated by a rotor driving portion (27) and a stator driving portion (19), respectively, and the rotor (12) and the stator (13) are rotated with the rotor (12) and the stator (13) not contacting each other.Type: ApplicationFiled: November 7, 2007Publication date: April 15, 2010Applicant: HEISHIN SOBI KABUSHIKI KAISHAInventors: Nobuhisa Suhara, Tetsuo Nomachi, Teruaki Akamatsu
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Publication number: 20100040498Abstract: To transfer and fill a fluid with high flow rate accuracy and a long operating life, and realize small size, light weight, low cost, and energy saving.Type: ApplicationFiled: January 29, 2008Publication date: February 18, 2010Applicant: HEISHIN SOBI KABUSHIKI KAISHAInventors: Teruaki Akamatsu, Mikio Yamashita, Nobuhisa Suhara
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Patent number: 6799698Abstract: A liquid material supply system includes a plunger pump, a flow regulating valve, an air-operated valve, a spring type accumulator and a dispenser. The plunger pump is connected to the flow regulating valve by a primary supply line. The flow regulating valve is connected to the dispenser by a secondary supply line. The on-off valve is connected to the secondary supply line. The accumulator is connected to the secondary supply line between the on-off valve and the dispenser. A pressure sensor detects the pressure substantially at the inlet port of the dispenser. This pressure is the basis for controlling the operation of the air-operated valve through an electromagnetic valve. The second chamber of the accumulator can store part of the liquid material supplied through the secondary supply line. The second chamber varies in volume with the balance between the force of the accumulator spring and the pressure in the secondary supply line so as to relax the pressure fluctuation in this line.Type: GrantFiled: October 27, 2003Date of Patent: October 5, 2004Assignee: Heishin Sobi Kabushiki KaishaInventors: Sumio Ono, Hisatoshi Izumi, Satoru Kurahashi, Yoshihiro Sugino, Nobuhisa Suhara
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Publication number: 20040164091Abstract: A liquid material supply system includes a plunger pump, a flow regulating valve, an air-operated valve, a spring type accumulator and a dispenser. The plunger pump is connected to the flow regulating valve by a primary supply line. The flow regulating valve is connected to the dispenser by a secondary supply line. The on-off valve is connected to the secondary supply line. The accumulator is connected to the secondary supply line between the on-off valve and the dispenser. A pressure sensor detects the pressure substantially at the inlet port of the dispenser. This pressure is the basic for controlling the operation of the air-operated valve through an electromagnetic valve. The second chamber of the accumulator can store part of the liquid material supplied through the secondary supply line. The second chamber varies in volume with the balance between the force of the accumulator spring and the pressure in the secondary supply line so as to relax the pressure fluctuation in this line.Type: ApplicationFiled: October 27, 2003Publication date: August 26, 2004Applicant: HEISHIN SOBI KABUSHIKI KAISHA (D/B/A HEISHIN LTD.)Inventors: Sumio Ono, Hisatoshi Izumi, Satoru Kurahashi, Yoshihiro Sugino, Nobuhisa Suhara