Japan
Japan

Aisin Seiki Co., Ltd. , also known as Aisin, is a Japanese corporation which develops and produces components and systems for the automotive industry. Aisin is a Fortune Global 500 company, ranked 347 on the 2007 rankings. Aisin Seiki was founded in 1949 and currently supplies engine, drivetrain, body and chassis, aftermarket, and other main automotive parts for various major OEMs. In addition to partaking in the automotive markets, Aisin also offers life & amenity products , energy systems, welfare products, and other products/services.Aisin is 30% owned by the Toyota Group of companies.There are various 'brands' in the holding, spawned from the companies which received recognition in their area of specialisation:Aisin AW — automatic transmissionsAisin AI — manual transmissionsAdvics, Hosei — brakesIMRA — Femtosecond lasers↑ ↑ Wikipedia.


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Patent
Aisin Seiki | Date: 2017-04-19

A flow passage partition structure including a flow passage member (5) including a flow passage space portion (5a), a partition member (18) partitioning the flow passage space portion into a first flow passage (13b) and a second flow passage (14c), the partition member including a first plate (20) and a second plate (30) being in contact with the first plate in a state where the second plate is press-fitted in an inner circumferential surface of the flow passage space portion, the first plate including an outer circumferential surface that is out of contact with the inner circumferential surface of the flow passage space portion, and the first plate, the second plate, and the inner circumferential surface of the flow passage space portion forming a space portion that corresponds to a foreign material storage portion (F).


Patent
Aisin Seiki | Date: 2017-04-05

A rotary electric machine (100) includes a rotor core (30) fixed at a rotation axis, a stator core (20) arranged facing the rotor core and including a plurality of teeth (22), a plurality of windings (50) wound at the plurality of teeth of the stator core, a plurality of winding connection terminals (101, 102, 71, 72) connected to respective ends of the plurality of windings, a plurality of bus bars (81, 82, 83, 84) connected to the plurality of winding connection terminals, each of the plurality of bus bars being formed in either an arc form or an annular form, and a bus bar holder (90, 93) holding the plurality of bus bars in a laminated state and including a holder engagement portion (91, 93a) engaging with a bus bar engagement portion (73b, 93b) which is provided at least at one of the plurality of bus bars.


Patent
Aisin Seiki | Date: 2016-09-28

A door latch device for vehicle of the present invention comprises a pawl which is engageable with a latch which rotates in a door closing direction by engaging with a striker, and a pawl return spring elastically biases the pawl towards a position at which the pawl is engaged with the latch. The pawl return spring comprises a coiled spring portion and an extending arm. The coiled spring portion is formed in a coiled state, the coiled spring portion having the coil center at a position which is spaced from the rotation center of the pawl; and has the coil center at a position which is spaced from the rotation center of the pawl. The extending arm extends along the abutted surface of the pawl from one of end portions of the coiled spring portion. The extending arm is configured so as to abut against a shear plane (second area) which is spaced from a fracture surface (first area) having relatively high surface roughness in the abutted surface of the pawl.


Patent
Aisin Seiki | Date: 2016-06-08

A valve opening/closing timing control device capable of quickly determining attainment of an intermediate locked phase includes: an intermediate lock mechanism capable of switching between a locked state in which a lock member provided in a drive-side rotary member protrudes and fits into a recess provided in a driven-side rotary member, thereby constraining a relative rotation phase to an intermediate locked phase, and an unlocked state in which the lock member withdraws from the recess, thereby releasing the constraint; a phase control unit that controls supply of a fluid to a retard chamber and discharge of the fluid from an advance chamber, or controls discharge of the fluid from the retard chamber and supply of the fluid to the advance chamber, such that the lock member attains the intermediate locked phase; and a determination unit that determines whether the lock member will attain the determination phase, when control has been performed such that the lock member moves toward a determination phase that has been set at a different position than the intermediate locked phase in the recess, after execution of control to supply the fluid to the retard chamber and discharge the fluid from the advance chamber, or control to discharge the fluid from the retard chamber and supply the fluid to the advance chamber. When the result of that determination is that the lock member will not attain the determination phase, the determination unit determines that the relative rotation phase is in the locked state.


Patent
Aisin Seiki | Date: 2016-06-24

An occupant discrimination system of a vehicle seat includes: a load detecting portion disposed on a lower side of a seat and detecting a load acting on the seat; an occupant discrimination portion discriminating a state of an occupant among a no occupant, adult seated state, and child seat fixed states based on a load detected from the load detecting portion and a load continuation duration; and a door opening and closing detecting portion detecting an opening and closing state of a door, wherein the occupant discrimination portion changes the state transition condition from the no occupant or child seat fixed state to the adult seated state such that it is difficult to transition in a state in which the door is detected to be in an open state in comparison to a state in which the door is detected to be in a closed state.


Patent
Aisin Seiki | Date: 2016-08-31

In a case where an engagement member (20) is assembled on an upper rail (40), a second rotary shaft portion (26L) is inserted to a shaft receiving bore (47) of a first side wall portion (44a) from an inner side of an upper rail (40). After the insertion, the engagement member (20) is rotated so that the second rotary shaft portion (26L) is inserted to the shaft receiving bore (47) of the second side wall portion (44b). At this time, because a shaft allowable length (L2) is specified to be greater than a shaft maximum rotation length (L4), an interruption of an insertion of the rotary shaft portion (26) because of a contact of the second rotary shaft portion (26L) with an edge portion of the shaft receiving bore (47) at the second side wall portion (44b) is restrained.


Patent
Aisin Seiki | Date: 2016-03-23

A rear wheel steering apparatus for a vehicle includes: a housing (1) connected via first and second connecting members to a suspension mechanism supporting rear wheels (RL, RR) of a vehicle; an electric motor (3a) accommodated in the housing; a planetary gear mechanism (30) having a sun gear (31) connected to an output shaft (20) of the electric motor, a ring gear (33) non-rotatably supported inside the housing, a planetary gear (32) meshing with the ring gear and the sun gear, and a carrier connected to the planetary gear, and reducing the output of the electric motor; and a linear motion mechanism (3c) having a nut member (36) connected to the planetary gear mechanism and forming the carrier, and a rod (2) screwed to the nut member and connected to the second connecting member, and converting the rotational motion of the nut member into the linear motion of the rod.


Patent
Aisin Seiki | Date: 2016-06-01

An electric pump includes: a motor rotor having a cylindrical yoke; a pump portion having outer and inner rotors; a shaft transmitting a rotational force from the motor rotor to the pump portion; a motor housing in which a coil portion is fixed to an inner peripheral surface and the motor rotor is housed on the inside of the coil portion; and a pump main body housing the pump portion, wherein the pump main body has a bearing portion supporting a portion of the shaft between the motor rotor and the inner rotor, and the inner rotor has a first recessed portion of a diameter greater than that of the shaft on a side facing the bearing portion and a part of the bearing portion is inserted into the first recessed portion to be disposed.


A vehicle door handle driving device (50, 60, 65) connected to an antenna (21) and a DC driving detection member (30) capable of detecting approach or touch of a person, which are connected in parallel, through first and second connection wires (W1, W2), wherein the first connection wire is constantly connected to a first positive DC power supply (+B), and the second connection wire is connected to a ground for a period during which the antenna is not driven, the vehicle door handle driving device includes: a booster capacitor (56) whose first terminal is connected to the first DC power supply; and an inverter (INV) connected to the second terminal of the booster capacitor, connected to a second positive DC power supply and the ground, generating an AC voltage having a resonance frequency of the antenna, and outputting the generated AC voltage to the first and second connection wires.


Patent
Aisin Seiki | Date: 2016-06-08

A door opening/closing device (60) includes: a resin-made base (31) attached to an inner panel (12) of a door; and a transfer mechanism (65) provided on an interior side of the base, and transferring power to a locking device (13, 14, 15) via a power transfer cable (17, 18, 19, 20), wherein the base includes first and second parts (31a; 31bx, 31by) in which the transfer mechanism and the cable are disposed respectively, and a fixing portion (35x) fixing an outer casing end portion of the cable, and wherein the first and second parts are configured to locate at different levels so that the second part is positioned closer to an inner side than the first part in a width direction, a step portion (36a, 36b) is provided between the first and second parts, and the fixing portion is provided in the step portion.

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