U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Did You Know...

...that when IBM conducted a market study of Chester Carlson's invention in 1959, the company concluded that it would take only 5000 units of his new product to saturate the market? IBM therefore declined to be part of the new product introduction. Too bad for IBM. Carlson's invention was the xerography process, and his new product was the beginning of the Xerox Corporation. It is estimated that every day, worldwide, 3,000,000,000 copies are made!!

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Assignee: Zexel Corporation


Location: Tokyo, JP
No. of patents: 336

1                  
NumberTitleIssue Date
6799630Tube for heat exchangers and method of manufacturing the same
A tube for a heat exchanger which has beads (21) formed on a brazing sheet (B) for configuring a tube (2) and tops of the beads brazed with opposed portions within a tube part (20) and a method for manufacturing the tube. The tube part (20
10/05/2004
6467170Tube for heat exchangers and method of manufacturing same
A tube for a heat exchanger which is formed to have beads for dividing passages for a medium in the tube by roll forming, wherein base portions of the beads are formed to have a thickness (B) greater than a thickness of a plate material for the tube. The ...
10/22/2002
6397938Heat exchanger
In a heat exchanger achieving a smaller width and constituted as a two-path heat exchanger having a first path through which the coolant travels from a first tank group to a second tank group and a second path through which the coolant travels from a thir...
06/04/2002
6375436Hybrid compressor having two drive sources
A hybrid compressor achieving simplification in the structure and capable of driving the compression unit with ease is provided. An electromagnetic clutch unit (40) is provided at a rotating shaft (11) projecting out on one side of a compression unit (10)...
04/23/2002
6368073Swash plate compressor
A swash plate compressor including a housing secured to a cylinder block having cylinder bores axially formed therethrough for receiving respective pistons therein. A swash plate is mounted on a drive shaft extending through a crankcase defined within the...
04/09/2002
6357520Heat exchanger
A heat exchanger comprises a plurality of tubes layered with fins intervened between them, header pipes disposed on the end portions of the tubes, and side plates for holding the tube layer, wherein each of the side plates (8) is connected to a side plate...
03/19/2002
6354368Fin for a one-piece heat exchanger and method of manufacturing the fin
The present invention provides fins utilized in an integrated heat exchanger that achieve a highly effective prevention of heat conduction, do not create any cuttings during their formation and achieve a high degree of dynamic strength and a method for ma...
03/12/2002
6298830Method of jetting high-pressure fuel and apparatus therefor
In order to obtain an amount of fuel injection determined by a target fuel injection amount determining unit (51) from an injector (32) supplied with high-pressure fuel from a high-pressure pump (2), there is provided a reference injection period determin...
10/09/2001
6295832Receiver tank
A receiver tank (2) formed into an airtight container having an inlet port (24) and an outlet port (25) for a refrigerant, wherein separates the refrigerant introduced in a gas-liquid mixture state is separated, and the separated liquid refrigerant is sto...
10/02/2001
6289979Heat exchanger
A heat exchanger that achieves a reduction in the dimensions of the header pipes, a sufficient level of strength against pressure and a structure that allows the caps to be washed thoroughly during the washing process is provided At each of the caps closi...
09/18/2001
6287081Control apparatus for hybrid compressor
In order to achieve a smooth shift between two drive sources, an electromagnetic clutch is engaged, when the rotation rate of the compression unit and the engine rotation rate match, to switch from motor drive to engine drive during engine startup or engi...
09/11/2001
6260367Refrigerating cycle
In a freezing cycle that utilizes a supercritical fluid as its coolant and employs an internal heat exchanger that performs heat exchange on the coolant on the outlet side of a gas cooler and on the intake side of a compressor, a means for adjustment that...
07/17/2001
6250381Heat exchanger
The present invention provides a radiator achieving a structure that enables integrated brazing, facilitates mounting of an automatic oil cooler and repair on areas with defective brazing and realizes good mountability and recyclability. A tank portion 4 ...
06/26/2001
6250099Refrigerating device
In order to achieve an improvement in the efficiency of a refrigerating cycle and achieve quick and precise response to changes in the environment or the operating state while using carbon dioxide as a coolant, the refrigerating cycle according to the pre...
06/26/2001
6227290Laminated heat exchanger
In a laminated heat exchanger with a pair of tank portions formed at one side of each tube element and intake/outlet portions for heat exchanging medium provided at one end in the direction of the lamination or in the direction running at a right angle to...
05/08/2001
6220342Laminated heat exchanger
In a laminated heat exchanger with a pair of tank portions formed at one side of each tube element and intake/outlet portions for heat exchanging medium provided at one end in the direction of the lamination or in the direction running at a right angle to...
04/24/2001
6198184Brushless motor
In order to protect a brushless motor, heat generated at a switching device, in response to an abnormality, activates a protection device. The protection device includes a connecting line communicating between a source supply line and the switching device...
03/06/2001
6190146Member for compressor, manufacturing method for the member, and scroll compressor
A scroll member for scroll compressor contains a phenol aralkyl resin and a glass fiber and has feature that the dimensional change rate of the member is 0.05% or below under a chemical stability test condition conducted in an atmosphere in which a refrig...
02/20/2001
6186710Method for rotationally driving gear material when hob machining is performed and gear
In order to rotationally drive a gear material (3) when the gear material (3) is gear machined using a hob (not shown), a drive hole (34) having a circular configuration in section and extending on an axis L of the gear material (3) is formed in an end fa...
02/13/2001
6173764Laminated heat exchanger
In a heat exchanger formed by laminating tube elements alternately with fins over a plurality of levels, a plurality of beads are formed in each of tube elements provided with intake/outlet portions in the areas where the tank portions change to a passage...
01/16/2001
6170565Heat exchanger
A heat exchanger comprising tubes (4) for configuring a first heat exchanger (A) and tubes (5) for configuring a second heat exchanger (B), the tubes (4) and (5) being disposed upstream and down stream of a direction that air is flown, fins (6) disposed b...
01/09/2001
6135093Plunger pump
The plunger pump according to the present invention discharges fuel by reciprocation of a plunger, and comprises metallic diaphragm type dampers, provided at a fuel inlet side and a fuel outlet side, respectively, for reducing pressure pulsation of fuel. ...
10/24/2000
6126537Blower unit for air conditioning system for automotive vehicles
There is provided a blower unit for an air conditioning system for an automotive vehicle. A casing accommodates a blower. The casing is formed with a recirculating air intake port for introducing recirculating air and a fresh air intake port for introduci...
10/03/2000
6119341Method of manufacturing flat tubes for heat exchanger
A method of manufacturing flat tubes by forming a flat tube body from a single plate material which is continuously drawn from a drum by either folding it into two or placing two plate materials one upon the other, and cutting the flat tube body in a pred...
09/19/2000
6095761Swash plate compressor
A swash plate compressor is provided. The swash plate has sliding surfaces on opposite sides thereof. Pairs of shoes, each of which has a substantially semispherical shape, slide on the sliding surfaces of the swash plate. Each piston is connected to the ...
08/01/2000
6094815Method of manufacturing rotor for a vane compressor
There is provided a method of manufacturing a rotor, which is capable of manufacturing a sufficiently high-strength and well-finished rotor at a reasonable price. A continuous cast rod is out into a billet having a predetermined length. The billet is heat...
08/01/2000
6082197Acceleration sensor
In the sensor: torsion beams 7a, 7b are fixedly connected between the centers of opposite outer sides of central fixed board 1 and the corresponding centers of opposite inner sides of a window 5; electrodes 11a, 11b, 12a, 12b are mounted on a front and a ...
07/04/2000
6073688Flat tubes for heat exchanger
A flat tube 2 for a heat exchanger which is formed by bending a single plate or overlaying two plates, wherein long beads 11 in a plurality of rows are previously formed on the plate in the longitudinal direction of the plate, the plate has its surface, t...
06/13/2000
6073689Actuator control apparatus
When implementing an origin reset, operating conditions for the origin reset are corrected in correspondence to changes in operating conditions such as the source voltage to implement an accurate origin reset. Changes in the operating conditions for actua...
06/13/2000
6062830Diaphragm type damper
A diaphragm type damper has a combined member, which is formed by welding a marginal portion of a diaphragm to a half body having a concave portion formed therein, and is fixed to a pressure chamber portion to which high pressure fluid is introduced. A wa...
05/16/2000
6056525Vane compressor
There is provided a vane compressor which prevents leakage of refrigerant gas by decreasing the number of airtight interfaces between component parts and prevents seizure from occurring between its rotor and its side block without surface treatment of the...
05/02/2000
6055957Fuel injection control method using variable nozzle hole fuel injection nozzle
A method for carrying out fuel injection using a variable nozzle hole type fuel injection nozzle and a jerk type fuel injection pump. The variable nozzle hole type fuel injection nozzle has in its tip a well formed by an enclosing wall in which are provid...
05/02/2000
6053243Header pipe for heat exchanger and manufacturing apparatus and manufacturing method thereof
When forming a circular tube-shaped header pipe by rolling a plate material, surfaces extending at a right angle to the internal and external surfaces of the plate material are formed at the two side edges extending in the lengthwise direction, and the pl...
04/25/2000
6047948Fuel injection nozzle
The fuel injection nozzle according to the present invention comprises a nozzle body provided with nozzle holes, a needle valve that opens and closes the nozzle holes, an armature that is mechanically linked with the needle valve and a stator that faces o...
04/11/2000
6045337Clutchless variable capacity swash plate compressor
There is provided a clutchless variable capacity swash plate compressor. A valve element is arranged at an intermediate portion of a refrigerant inlet passage, for increasing and decreasing an opening area of the intermediate portion. An urging member urg...
04/04/2000
6036450Variable capacity vane compressor
A variable capacity vane compressor includes side members secured to opposite end faces of a cylinder block, respectively, and a rotary plate mounted in one of the side members, for adjusting compression starting timing of the compressor to thereby increa...
03/14/2000
6032729Laminated heat exchanger
In a laminated heat exchanger, an intake portion and an outlet portion for heat exchanging medium are provided at one end portion in the direction of lamination. The intake portion is made to communicate with a most upstream pass distance from the one end...
03/07/2000
6024536Device for introducing and discharging cooling air
The object of the invention is to prevent the quantity of airflow by a fan from decreasing in dependence on the distance between the fan and obstacles such as an engine in a device for introducing and discharging cooling air having a shroud with a high co...
02/15/2000
6021956Thermal image judging method and air conditioner control method
Whether a thermal image is in a steady state or an unsteady state is judged based on measurement values of temperatures of objects and ambient temperature and previously obtained relational expressions between ambient temperature and the temperatures of t...
02/08/2000
6022204Vane compressor having a single suction groove formed in a side member which is in direct contact with a cam ring
A vane compressor has at least one of a front-side member and a rear-side member thereof formed with a suction chamber opening toward a cam ring, which has a substantially arcuate or annular shape and extends around a drive shaft. The cam ring has one end...
02/08/2000
1                  
 
Sign InRegister
Username  
Password   
forgot password?