15 patents
Utility
Magnetic bearing, drive device equipped with the same, and pump
16 Jan 24
A magnetic bearing contactlessly supporting a rotor by magnetic force includes: a bearing rotor member made of a magnetic material; and a bearing stator member arranged around bearing rotor member.
Toshiki Oniduka, Shinichirou Koreeda, Toshiaki Kamei, Takuya Seki
Filed: 10 Jan 20
Utility
Rotary Drive Device and Pump
14 Sep 23
A rotor, a magnetic bearing, and a drive unit that rotationally drives the rotor.
Toshiki ONIDUKA, Shinichirou KOREEDA, Toshiaki KAMEI, Hikaru SAITOU, Masaya UENO, Takuya SEKI
Filed: 13 May 21
Utility
Pump
25 Aug 22
A pump includes: a rotor; a magnetic bearing supporting the rotor by a magnetic force; a drive mechanism rotationally driving the rotor; a pump mechanism including an impeller attached to the rotor; and a control unit controlling the magnetic bearing which includes: a bearing rotor member in the rotor formed from a magnetic material; and a bearing stator member facing the bearing rotor member, the bearing stator member has: a core formed from a magnetic material; and a coil wound around the core, the drive mechanism includes: a driven member adjacent in a radial direction to the bearing rotor member; and a drive portion facing the driven member in the radial direction, and magnetically coupled to the driven member to drive the rotor, and the control unit corrects rotational position of the rotor based on a detection signal from a first sensor portion capable of detecting displacement of the rotor.
Toshiki ONIDUKA, Shinichirou KOREEDA, Toshiaki KAMEI, Takuya SEKI
Filed: 13 Jul 20
Utility
Magnetic Bearing, Drive Device Equipped with the Same, and Pump
4 Aug 22
A magnetic bearing contactlessly supporting a rotor by magnetic force includes: a bearing rotor member made of a magnetic material; and a bearing stator member arranged around bearing rotor member.
Toshiki ONIDUKA, Shinichirou KOREEDA, Toshiaki KAMEI, Takuya SEKI
Filed: 10 Jan 20
Utility
Tubephragm pump
26 Apr 22
A tubephragm pump includes a tubephragm that has a pump head portion that forms a pump chamber, a driving head that holds the tubephragm and expands and contracts the pump chamber by directly pressing and pulling the pump head portion in a direction intersecting with a transfer direction of a transfer fluid, a driving unit that drives the driving head back and forth in a driving direction to expand and contract the pump chamber, and a control unit that controls the driving unit.
Shigeyoshi Matsuo, Hiroyuki Tanabe, Motohiro Tanaka
Filed: 4 Feb 20
Utility
Reciprocating pump designed for preventing valves from being assembled erroneously
26 Apr 22
At least one rib 9c, 21c extending in a direction of connecting with a valve cartridge 30 is provided to the inner sides of each of a second connection port 9 of a pump head 5 and a third connection port 21 of a first connecting adapter 20A, and at least one slit 41 which extends in the connecting direction and into which the ribs 9c, 21c are loosely inserted is provided to the lower outer periphery of the valve cartridge 30.
Yoshio Ogawa
Filed: 15 Dec 16
Utility
Plunger pump having a rotatable plunger with cut face disposed in a cylinder wherein the cylinder includes a main body and a spacer section with the spacer section having a greater length in an axial direction than the maximum stroke length of the plunger
31 Aug 21
Plunger pump includes cylinder having inside cylinder chamber; plunger disposed in cylinder to be relatively movable forward and backward to cylinder chamber so outer plunger's circumferential face is in slide contact with cylinder's inner circumferential face, and having cut face on distal end's outer periphery; and suction and discharge ports provided to cylinder to communicate with cylinder chamber, plunger pump transferring fluid by reciprocating plunger in axial direction while rotating plunger relative to cylinder chamber to let suction and discharges ports alternately communicate with cylinder chamber, wherein cylinder includes cylinder main body and spacer section being disposed in cylinder main body's inner portion of proximal end side, and sliding against plunger's portion closer to proximal end side than portion of plunger advancing and retracting into cylinder chamber, and plunger pump further includes seal section provided on cylinder's proximal end side for sealing cylinder main body, plunger and spacer section.
Mikio Mizukoshi
Filed: 12 Jan 18
Utility
Pump device
24 Aug 21
The pump device includes: a pump body which transfers a transfer fluid; a drive unit which drives the pump body; an operating unit which sets an operation of the drive unit; and a joint mechanism which attaches the operating unit to the drive unit.
Yuichi Matsumoto, Toshiaki Hada
Filed: 28 Sep 16
Utility
Valve seat and valve structure
9 Mar 21
This valve seat is disposed below a valve ball, wherein the valve seat comprises an annular member in which a seating surface and a lower end surface of the valve ball are formed into a circular shape; a flow path is formed between the seating surface and the lower end surface, for communicating a transfer fluid including a gas and a liquid; and the flow path is formed in a predetermined shape in which a horizontal distance from the central axis which crosses the lower end surface at right angle to the inner circumferential surface of the flow path excluding the seating surface and the lower end surface is not constant over the entire circumference of the flow path.
Yoshio Ogawa
Filed: 13 Dec 16
Utility
Magnetic pump
12 Jan 21
A magnetic pump includes a front casing including: a shaft supporting body that supports a leading end of a supporting shaft; and a plurality of supporting legs that extends toward an inner wall of a suction port from the shaft supporting body, and that supports the shaft supporting body in the suction port.
Hiroyuki Kawai, Katsumi Kawaguchi, Toshinori Yanagihara
Filed: 27 Dec 13
Utility
Tubephragm Pump
2 Sep 20
A tubephragm pump includes a tubephragm that has a pump head portion that forms a pump chamber, a driving head that holds the tubephragm and expands and contracts the pump chamber by directly pressing and pulling the pump head portion in a direction intersecting with a transfer direction of a transfer fluid, a driving unit that drives the driving head back and forth in a driving direction to expand and contract the pump chamber, and a control unit that controls the driving unit.
Shigeyoshi MATSUO, Hiroyuki TANABE, Motohiro TANAKA
Filed: 3 Feb 20
Utility
Plunger pump
13 Jul 20
A plunger pump includes a cylinder section having a cylinder chamber and a spacer section sliding against a portion of the plunger closer to a proximal end side than a portion of a plunger advancing and retracting into the cylinder chamber.
Mikio Mizukoshi
Filed: 23 Jan 17
Utility
Volume pump including a bellows and a suction valve and a discharge valve wherein the valves comprise a valve seat and a valve body and wherein a fixed section of the valve body includes a communicating flow path
6 Jul 20
A volume pump transfers a transfer fluid by expanding and contracting a bellows, and includes: the bellows that is capable of expanding and contracting, and has a bottomed cylindrical shape forming a pump chamber on its inside; a suction valve provided on a suction side of the pump chamber to guide the transfer fluid into the pump chamber; and a discharge valve provided on a discharge side of the pump chamber to discharge the transfer fluid from the pump chamber.
Toshiki Oniduka
Filed: 9 Mar 15
Utility
Reciprocating Pump
8 Apr 20
At least one rib 9c, 21c extending in a direction of connecting with a valve cartridge 30 is provided to the inner sides of each of a second connection port 9 of a pump head 5 and a third connection port 21 of a first connecting adapter 20A, and at least one slit 41 which extends in the connecting direction and into which the ribs 9c, 21c are loosely inserted is provided to the lower outer periphery of the valve cartridge 30.
Yoshio OGAWA
Filed: 14 Dec 16
Utility
Reciprocating Pump
1 Apr 20
A reciprocating pump includes: a pump head having an inner space; a diaphragm configured to partition the inner space of the pump head into a pump chamber into which a transfer fluid is to be introduced and a working chamber into which working air is to be introduced; a driving device including a reciprocating member coupled to the diaphragm, the driving device being capable of driving the reciprocating member with the working air at least in a direction that the diaphragm is retracted; and a working air switching device.
Shigeyoshi MATSUO, Hiroyuki TANABE, Motohiro TANAKA
Filed: 27 Jan 19
- Prev
- 1
- Next
Patents are sorted by USPTO publication date, most recent first