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| Number | Title | Issue Date |
| 7095148 | Motor with improved rotary shaft supporting structure A stepping motor includes a rotor with a permanent magnet, a rotary shaft extending from the rotor and a stator placed around the rotor. The stepping motor comprises a stator core placed on one end section in a motor axial line direction of the stator, a bearing pla... | 08/22/2006 |
| 7061231 | Device for measuring displacement including a displacement sensor with a detection coil and excitation coils A displacement measuring device for detecting a relative position of an object by interposing the object between a set of at least two displacement sensors. The displacement sensor may comprise of a core body that includes a detection coil and a pair of excitation c... | 06/13/2006 |
| 7052386 | Curved surface cutting processing method A curved surface cutting method in which a surface of a material is cut by a bite to form a specified curved surface, a cutting edge of the bite is provided with a flat section and corner sections at both ends of the flat section; the posture of the cutting edge of ... | 05/30/2006 |
| 7035507 | Manufacturing method for optical element A manufacturing method for an optical element includes providing a base member for an optical element and a cutting tool from which a blade tip part protrudes, forming an inspecting groove on a surface of the base member by the blade tip part of the cutting tool by ... | 04/25/2006 |
| 7027377 | Optical head device and objective lens An optical head device that converges first and second laser beams having different wavelengths on recording surfaces of first and second optical recording media through a single light converging optical system including an objective lens for recording or reproducin... | 04/11/2006 |
| 7005758 | Hydraulic power generating device A hydraulic power generating device includes a main body case forming a flow passage provided with a water wheel chamber between a fluid inlet port and a fluid outlet port, a cover covering the main body case, a water wheel for power generation disposed in the water... | 02/28/2006 |
| 7000836 | Method of self-testing IC card readers A method of self-testing an IC card reader. The IC card reader communicates data with an IC card. The IC card reader sends the result of the communication to a higher level apparatus. Before the higher level apparatus issues an IC card execution command, the IC card... | 02/21/2006 |
| 6991163 | Card reader A card reader that transports a card having a magnetic strip with a drive means to read and write information on the card that includes prehead for detecting the insertion of the card by searching the presence of the magnetic information recorded on the magnetic str... | 01/31/2006 |
| 6990992 | Damper device A damper device includes a first baffle capable of opening or closing a first opening portion by turning about its axis and a second baffle capable of opening or closing a second opening portion by turning about its axis. A common drive source for driving the first ... | 01/31/2006 |
| 6984975 | Magnetic displacement sensor for sensing the position of an object A displacement sensor for sensing the relative position of an object to be detcted is provided. The displacement sensor includes a core body having a core center portion and core end portions that are continuously formed on both sides of the core center portion. Mag... | 01/10/2006 |
| 6981688 | Flow control device A flow control device includes an opening part through which an upstream side of a fluid flow passage is in communication with a downstream side of the fluid flow passage. A valve element closes the opening part and includes a large flow rate controlling valve eleme... | 01/03/2006 |
| 6967586 | Bearing test method, bearing test device, bearing monitoring device and storage device A bearing test method and a bearing test device are provided for bearings in which a non-contact state is maintained between a shaft element and a bearing element in a normal rotation state. In addition, a motor bearing monitoring device is provided to detect an abn... | 11/22/2005 |
| 6967421 | Core for motor, motor furnished to the core and method for manufacturing the motor A motor includes a core having a common connection section formed in a ring shape, a plurality of salient pole sections that protrude and extend radially from the common connection section, each of the salient pole sections defining a common connection section side ... | 11/22/2005 |
| 6962443 | Fluid dynamic pressure bearing apparatus A fluid dynamic pressure bearing apparatus includes a radial dynamic pressure bearing formed in a gap portion between a bearing member and a shaft member. The apparatus also includes a thrust dynamic pressure bearing having a first thrust bearing portion formed betw... | 11/08/2005 |
| 6962320 | Flow control device A flow control device includes a wall part partitioning an upstream side and a downstream side of a flow passage for fluid, an aperture part formed on the wall part, a sheet shaped valve element which changes from a closed state in which the sheet shaped valve eleme... | 11/08/2005 |
| 6961297 | Optical head device The present invention provides for a optical head device having a beam-guiding optical device to bring beams of different wavelengths which are emitted by separate light sources together onto the same optical axis or to guide the beams onto a common photo receiving ... | 11/01/2005 |
| 6956306 | Linear actuator, and pump device and compressor device using the same A linear actuator includes an inner yoke, an outer yoke and a coil for generating a magnetic field between the outer yoke and the inner yoke. The outer yoke includes a first facing portion facing the inner yoke and a second facing portion which faces the inner yoke.... | 10/18/2005 |
| 6955469 | Dynamic pressure bearing device A dynamic pressure bearing device includes a dynamic pressure bearing member, a rotary member that is rotatable with respect to the dynamic pressure bearing member, a thrust dynamic pressure bearing section provided in a thrust opposing region that is between an end... | 10/18/2005 |
| 6951473 | IC card reader An IC card reader comprising a contact head holding body which is given a force in the card discharge direction and makes contact with an IC card at the insertion of the card. The card reader also comprises a card latch lever that is operated between an open mode, i... | 10/04/2005 |
| 6951424 | Motor with axially moveable bearing member A motor includes a rotor section with a rotor shaft having an end section, and a stator section including a yoke section disposed opposite the rotor section. The motor is also equipped with a bearing assembly having a bearing member that includes a main bearing sect... | 10/04/2005 |
| 6941413 | Nonvolatile memory, its data updating method, and card reader equipped with such nonvolatile memory A method for updating data in a nonvolatile memory is provided. The method comprises the steps of writing in a RAM data stored in a data writing region of the non-volatile memory, updating the data in the RAM, updating a data error detection region in the RAM based ... | 09/06/2005 |
| 6939047 | Dynamic pressure bearing device A dynamic pressure bearing device includes a rotary shaft, a dynamic pressure bearing member for supporting the rotary shaft, two radial dynamic pressure bearing parts and a thrust dynamic pressure bearing part formed between the dynamic pressure bearing member and ... | 09/06/2005 |
| 6936940 | Motor with resin base plate A motor includes a stator and a rotor having drive permanent magnets and a rotary shaft. The stator supports a core with coils wound thereon and includes a base plate. The base plate is formed with a resin, and is composed of a core supporting section that supports ... | 08/30/2005 |
| 6935611 | Motor control device for flow control device A motor control device for a flow control device includes an opening part through which an upstream side of a fluid flow passage is in communication with a downstream side of the fluid flow passage, a valve element that controls a flow of a fluid which passes throug... | 08/30/2005 |
| 6933631 | Stepping motor A stepping motor includes a pair of drive coils arranged to sandwich a magnetic rotor in the axial direction of a rotor shaft in order to decrease the motor size. The drive coils are configured to be annular around the rotor shaft that extends in both directions fro... | 08/23/2005 |
| 6926250 | Valve driving device A valve driving device includes a plurality of valve bodies that are simultaneously driven. Driven gears are disposed symmetrically with respect to an axis of the a common gear. Rubber valve bodies which are separate from the driven gears are disposed on the lower s... | 08/09/2005 |
| 6921995 | Motor A motor comprises a casing made of magnetic material for housing a rotor and a coil wherein side surfaces of the casing have openings. The openings are closed by the magnetic plates that are thinner than the thickness of the material of the casing. ... | 07/26/2005 |
| 6918408 | Valve driving device A valve driving device comprises a main case having one or more inlet pipes through which a fluid flows in from an external compressor and two or more outlet pipes through which the fluid flows out and also having built-in valve elements to open and close openings t... | 07/19/2005 |
| 6896143 | Electrolytic machining method, method for manufacturing dynamic pressure bearing devices, and dynamic pressure bearing devices manufactured according to the manufacturing method An electrolytic machining method for electrolytically machining a workpiece is provided. The method uses a masking member having through-hole patterns that correspond to the shapes of concave parts to be formed in the workpiece. The masking member is brought in cont... | 05/24/2005 |
| 6891307 | Motor with a plurality of pole teeth A motor includes a plurality of core assemblies forming three phases, and a plurality of coil windings provided on the respective core assemblies, wherein one of the coil windings is wound in a coil winding direction opposite to a coil winding direction of the coil ... | 05/10/2005 |
| 6885121 | Controlled radial magnetic bearing The flux densities formed by plural electromagnet poles M1 to M12 which are arranged at a predetermined interval in a circumferential direction of a rotary body 1 at the same position in an axial direction of the rotary body 1 are gradual... | 04/26/2005 |
| 6880802 | Valve device A valve device having a novel vale seat plate is provided. The valve seat plate has an inlet opening, an outlet opening, a front side and a back side. A sealing case covers the front side and inlet and outlet pipes are attached to the back side to communicate respec... | 04/19/2005 |
| 6879077 | Motor, motor stator and method for manufacturing the same A motor has a stator core having a plurality of salient poles and stator coils wound on the salient poles, respectively, each of the stator coils having a common side coil end part and a coil winding part. The common side coil end part of each of the stator coils ex... | 04/12/2005 |
| 6877716 | Motor-operated damper device A motor-operated damper device includes a baffle driving device equipped with a motor, a baffle that is driven by the baffle driving device, a frame defining an opening section that is closed and opened by the baffle, the opening section having a peripheral edge sec... | 04/12/2005 |
| 6873591 | Two-wavelength optical pickup device with step-like diffraction element An optical pickup device is equipped with a first light source that emits first light, a second light source that emits second light having a wavelength different from a wavelength of the first light, and a diffraction element that deflects the first light or the se... | 03/29/2005 |
| 6873068 | Stepping motor A stepping motor includes a stator whose outer diameter is 8 mm or less and a rotor having a magnet disposed opposing to the stator. The stator has a core with pole teeth formed therein. The ratio between the thickness of the pole teeth formed in the core in the rad... | 03/29/2005 |
| 6865900 | Temperature control method for refrigerator A temperature control method for a refrigerator includes providing a valve device, in which an inflow port where a refrigerant flows into, at least two outflow ports having a first outflow port and a second outflow port where the refrigerant flows out, and a valve e... | 03/15/2005 |
| 6861776 | Stator structure of motor A stator structure of a motor includes a stator assembly having a coil bobbin on which coil windings are wound, terminal pins affixed to the coil bobbin, a substrate having a wiring pattern and affixed to the terminal pins, and a connector member that is equipped wi... | 03/01/2005 |
| 6859319 | Optical element, mold for molding optical element and optical pickup device An optical element including a binary blaze grating formed thereon, wherein the binary blaze grating is formed so as to have step differences formed by a number of levels produced by mechanical processing. The number of levels is equal to or more than 5 and the heig... | 02/22/2005 |
| 6856469 | Lens driving device A lens driving device includes a moving body equipped with a lens and a driving magnet attached to the lens, and a fixed body that is equipped with a driving coil that forms together with the driving magnet a magnetic circuit and moves the moving body in an optical ... | 02/15/2005 |
