Tokoi
Hiroaki Tokoi, Nagano JP
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20150183414 | BRAKE HYDRAULIC PRESSURE GENERATOR - First main and second hydraulic pressure paths, master cut valves configured to open and close the first and second main hydraulic pressure paths, respectively, a slave cylinder that operates in accordance with an operation amount of a brake operator, a first communication path that communicates from the slave cylinder to the first main hydraulic pressure path, and a second communication path that communicates from the slave cylinder to the second main hydraulic pressure path are provided. The slave cylinder includes a single hydraulic pressure chamber. The slave cylinder communicates with the first and second communication paths through a common flow path connected to the hydraulic pressure chamber. The slave cylinder is configured to be able to increase a pressure on a downstream side of the first or second main hydraulic pressure path. An on-off valve is provided in at least one of the first and second communication paths. | 07-02-2015 |
20150274144 | BRAKE HYDRAULIC PRESSURE GENERATING DEVICE - One embodiment of the present invention provides a brake hydraulic pressure generating device, including: a master cylinder, a stroke simulator and an on/off valve. The on/off valve opens/closes a branch hydraulic pressure passage, which branches from a main hydraulic pressure passage. The on/off valve includes a first valve mechanism including a first valve portion and a first valve seat, and a second valve mechanism including a second valve portion and a second valve seat. The first valve seat is formed in the second valve portion. A pressure receiving area in which brake hydraulic pressure acting from the stroke simulator side is received is set to be higher in the second valve portion than in the first valve portion. | 10-01-2015 |
Hiroaki Tokoi, Ueda-Shi JP
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20150084401 | VALVE SYSTEM OF BRAKING DEVICE - A valve system of a braking device provided with a stroke simulator that is connected via a connection passage with a pipe for making a master cylinder communicate with a wheel cylinder; and a third shut-off valve that is a solenoid valve and performs opening and closing of a communication between the master cylinder and the stroke simulator, wherein the third shut-off valve is a normally closed valve; and the valve system opens the third shut-off valve by applying a start-up voltage, thereafter keeps the open state of the third shut-off valve by alternately applying a holding voltage that is lower than the start-up voltage and the start-up voltage, in order to prevent heat generated in the valve from becoming excessively high even while keeping the open state of the valve. | 03-26-2015 |
Hirooki Tokoi, Tokai JP
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20120194021 | MAGNETIC GEAR - A magnetic gear comprises a first permanent magnet field having a plurality of permanent magnet magnetic poles, a second permanent magnet field having a plurality of permanent magnet magnetic poles, number of poles of which magnet is different from that of the first permanent magnet field, and a modulating magnetic pole arranged between the first permanent magnet field and the second permanent magnet field and having a plurality of pole pieces to modulate the number of poles of the first and second permanent magnet fields. Non-magnetic bars are provided between the plurality of pole pieces. One ends of the non-magnetic bars are fixed to a first non-magnetic end holding member and the other ends of the non-magnetic bars are electrically insulated from and fixed to a second non-magnetic end holding member. | 08-02-2012 |
Hirooki Tokoi, Tokai-Mura JP
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20140042842 | Axial Gap Rotating-Electric Machine - A channel connecting a first opening formed on one side surface of a rotor and a second opening formed on the other side surface of the rotor is provided, and a first distance from a rotating shaft to the center of the first opening and a second distance from the rotating shaft to the center of the second opening are differentiated. A differential pressure is generated between the first opening and the second opening provided in the rotor by the differentiating the distances from the center of the rotating shaft to the first opening and the second opening, a flow of air is generated by the differential pressure from one surface or the other surface of the rotor to the other surface or the one surface, whereby the stator in proximity to the rotor may be cooled. | 02-13-2014 |
Hirooki Tokoi, Tokyo JP
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20150349591 | Axial Gap Polyphase Motor, Stator for Use Therein, and Method for Producing Stator - There is provided an axial gap polyphase motor whereby losses caused by eddy currents generated in a stator core can be eliminated, while the stator core can be prevented from shifting out of position. The stator for use in the axial gap polyphase motor is provided with a layered stator core | 12-03-2015 |
Hirooki Tokoi, Naka-Gun JP
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20120146445 | Axial Flux Permanent Magnet Brushless Machine - An axial flux permanent magnet brushless machine according to the present invention includes: a housing; a stator comprising a stator core and a coil; two rotors each including a permanent magnet, and positioned so as to sandwich the stator in the axial direction with air gaps being left between the rotors and the stator; and a variable gap mechanism for changing distances of the air gaps; wherein the variable gap mechanism operates from a power source that supplies other rotational power than a rotational power of the axial flux permanent magnet brushless machine, and changes the distances of the air gaps by shifting the rotors in the axial direction. | 06-14-2012 |
Hirooki Tokoi, Hitachi JP
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20110076175 | Punch die for powder compacting, powder compacting equipment equipped with punch die, and forming method with an equipment - In a punch die for powder compacting, a powder compacting equipment equipped with the punch die, and a forming method with the equipment, for suppressing the occurrence of stress concentration in the die without changing a shape of a powder compacting body, the punch die is used to form a cylindrical member by powder compacting, which has a substantially cylindrical shape and has a protrusion portion formed on the inner peripheral side thereof to protrude in the axial direction or a stepped portion or a concave portion formed on the inner peripheral side thereof in the radial direction. The punch die has a substantially cylindrical shape, and has a protrusion portion formed on at least a part of the inner peripheral surface or the outer peripheral surface thereof to protrude toward the center axis. The punch die is divided into two upper and lower parts at a surface forming the same surface as a lower surface of the protrusion portion, and the division surfaces are mechanically connected to each other or adhered to each other by adhesive. | 03-31-2011 |
20110148224 | AXIAL GAP PERMANENT MAGNET MOTOR, ROTOR USED FOR THE SAME, AND PRODUCTION METHOD OF THE ROTOR - A stator and a rotor are oppositely arranged having a gap between the stator and the rotor in a direction parallel to a rotary shaft. The rotor has permanent magnets forming field magnetic poles and soft magnetic material segments to cover at least stator-facing surfaces of the respective permanent magnets. Each of the soft magnetic materials forms a composite part together with the permanent magnet. The rotor further has a disc-shaped nonmagnetic molded frame molded so as to cover the periphery of the composite part including the permanent magnet and the soft magnetic material segment while leaving a stator-facing surface of the soft magnetic material segment as an exposed surface. The composite part (including the permanent magnet and the soft magnetic material) and the nonmagnetic molded frame are integrated by molding of the molded material. | 06-23-2011 |
Hirooki Tokoi, Chiyoda-Ku, Tokyo JP
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20150349588 | Rotating Electrical Machine - Provided is a bearing electrolytic corrosion countermeasure technology achieving excellent reliability without increasing the number of components. A rotating electrical machine of the invention includes: a stator; a shaft penetrating the stator; a rotor facing the stator via a gap in an axial direction; and a housing holding the stator, in which: the stator includes, in a circumferential direction, a plurality of stator units each of which includes a grounded first conductive member, a core, a bobbin, and a winding wound around the bobbin; the bobbin has a flange portion provided between the winding and the rotor; the first conductive member is provided between the flange portion and the rotor and is in contact with the core, and, in a case where projection is performed in the axial direction, the winding is provided such that a projected portion of a part of the winding wound around the bobbin is within a projected portion of the flange portion; and the first conductive member is provided such that the projected portion of the first conductive member is included in the projected portion of the flange portion. | 12-03-2015 |
Shogo Tokoi, Kyoto-Fu JP
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20120037538 | CARRIER TAPE, CARRIER TAPE MANUFACTURING APPARATUS, AND METHOD OF MANUFACTURING CARRIER TAPE - Provided is a carrier tape with improved tensile strength and flexural rigidity in a longitudinal direction of a base material, including recesses that can be provided at a narrow pitch in a first surface of the base material, and manufacturable at reduced cost, as well as to provide an apparatus and a method for manufacturing such a carrier tape. A carrier tape of the present invention is constituted by a strip-shaped base material, and includes a plurality of recesses provided in a first surface of the base material and for containing electronic components, a covering unit configured to seal openings of the recesses, and a projection provided on a second surface of the base material along a longitudinal direction of the base material. A length of the projection extends over at least two of the recesses. | 02-16-2012 |
20150162689 | COAXIAL CONNECTOR - A coaxial connector is manufactured to have a structure in which a first resin member is not easily separated from an external terminal. A coaxial connector according to the present disclosure includes a first resin member, a second resin member attached to the first resin member, a fixed terminal and a movable terminal disposed between the first resin member and the second resin member, and an external terminal attached to outer peripheries of the first resin member and the second resin member. The external terminal includes a cylindrical accommodating portion that accommodates the first resin member, and the first resin member includes a resin engagement portion. The resin engagement portion is engaged with the accommodating portion, so that separation of the first resin member is prevented. | 06-11-2015 |