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...that after Walter Hunt patented the safety pin in 1849, he sold the rights to it for $400?
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| Number | Title | Issue Date |
| 5855612 | Biocompatible titanium implant A biocompatible titanium implant with a modified exterior surface having a covering layer that comprises a hydrated titania gel. The exterior surface of the titanium implant is processed by a hydrogen peroxide aqueous solution that contains metal ions whi... | 01/05/1999 |
| 5835554 | X-ray imaging apparatus and x-ray generation detector for activating the same An image processor comprises a CPU, a ROM for storing programs and data, a main storage memory for storing image data, parameters for image processing and the like, an image memory for storing image data which are to be displayed on a monitoring device, a... | 11/10/1998 |
| 5810498 | Fastener assembly for a file A file having a polypropyrene base sheet and a fastener assembly that includes a polypropyrene base member thermally bonded to the polypropyrene base sheet. A relatively thin polypropyrene sheet, such as a polypropyrene sheet having a thickness of about 0... | 09/22/1998 |
| 5796495 | Image input equipment An image input equipment including a stage having a diffusion board provided on an upper surface thereof on which an object is to be placed, an image input head for inputting an image of the object and photoelectrically converting the image into an electr... | 08/18/1998 |
| 5788141 | Adjustment means for a die push-up assembly A die push-up assembly used in a bonding machine, such as a die bonding or a tape bonding device, is provided on a die-push-up assembly adjustment device including an X-direction adjustment plate which has a pivot shaft, a Y-direction adjustment plate whi... | 08/04/1998 |
| 5776786 | Method for wire-bonding a covered wire To assure that a loop height remains constant even if the wiring distance should vary and no slack is generated in the hypotenuse of the bonded wire: the length of the covered wire required for a next wiring operation is set by a formula which combines a ... | 07/07/1998 |
| 5775063 | Process and apparatus for assembly-packaging pellet-like articles Disclosed is a process and an apparatus for assembly-packaging pellet-like articles in units of a predetermined, characterized in that a pellet-like articles group is ejected toward a packaging film locating at a stand-by position to be gripped together w... | 07/07/1998 |
| 5774978 | Apparatus for removing electrode tip from welding tool with vibrations An apparatus used in removing an electrode tip from the tip end of a welding tool, such as a welding gun, including a main body having a vibration block which is repeatedly hit by a hammer at a rate of, for example, 3,600 times a minute. The vibration blo... | 07/07/1998 |
| 5757461 | Method for displaying a photographing point of a cornea in an apparatus for obtaining video images of corneal cells A method for displaying a photographing point of a cornea which is used in an apparatus for obtaining video images of corneal cells. The apparatus includes (a) first optical assembly having a video camera provided in front of a subject eye for observing a... | 05/26/1998 |
| 5752157 | Liquid fuel reforming apparatus A liquid fuel reforming apparatus comprising a bobbin main body containing a fuel passage through which a liquid fuel such as gasoline and a combustible gas passes; a coil having a predetermined number of winding formed around the bobbin main body; and a ... | 05/12/1998 |
| 5749442 | Lead frame magazine fastening structure A lead frame magazine fastening structure used with, for instance, a semiconductor bonding machine including raising-and-lowering shafts passing through a magazine setting plate of an elevator device and a positioning assembly comprising pins and a vacuum... | 05/12/1998 |
| 5746422 | Clamping device A clamping device used in, for instance, a bonding machine, using a piezo-electric element for opening and closing a pair of clamping claws for holding, for instance, bonding wires in between. The clamping device includes a pressure adjustment screw which... | 05/05/1998 |
| 5747989 | Apparatus for non-destructively detecting a nugget for spot welding An apparatus for detecting a nugget for spot welding utilizing the magnetic after-effect which is generated when a variation in the magnetic field is applied to a nugget. The apparatus includes a driving coil, which applies a magnetic field variation to a... | 05/05/1998 |
| 5747999 | Feed control element used in substrate inspection and method and apparatus for inspecting substrates A non-contact voltage feeding apparatus for inspecting a circuit pattern on a substrate. The feeding apparatus includes a feed control element having a laminated structure as a light probe. A voltage is applied to the light probe disposed on the feeding s... | 05/05/1998 |
| 5741988 | Lead frame detection apparatus In a lead frame detection device used between a bonding machine and a lead frame storage magazine, a lead frame contacting probe is provided on a pivotal contact assembly so that the pivotal movement of the contact assembly that is caused, via the contact... | 04/21/1998 |
| 5741006 | Butterfly valve A butterfly valve comprised of main body, a seating ring installed in the seating ring, and a disk shape valve member rotatably provided in the seating ring. The seating ring has an inside projecting ridge so that circumferential edges of vanes of the val... | 04/21/1998 |
| 5734973 | Radio receiver for selectively receiving signals at frequencies of previously stored broadcast stations A radio receiver device in which a plurality of items of area data are stored in an area data storage section, and when a last area modification mode that modifies the last area data in the current settings is detected, area data that corresponds to the m... | 03/31/1998 |
| 5733090 | Magazine conveying device A lead frame magazine conveying device including magazine guides that guide the lead frame magazine to be conveyed. The magazine guide comprises a fixed guide and a movable guide which is a bar attached at the end of a swing lever. When the movable guide ... | 03/31/1998 |
| 5730497 | Medical treatment table Even when a headrest is moved, the hair of the patient is supported and the hair is surely prevented from hanging down. In a treating seat which can be lifted and lowered by a lifting device, stretched portions which are raised obliquely upwardly from shoulder... | 03/24/1998 |
| 5729105 | Moisture actuated device for automatic control of a windscreen wiper motor The invention relates to a device for the automatic control of a windscreen wiper motor. The device has a moisture sensor which emits a signal depending on the moisture on the windscreen or another point on a motor vehicle so that this signal to some exte... | 03/17/1998 |
| 5727917 | Magazine conveying device A lead frame magazine conveying device including vertically provided magazine loader and unloader sections and an elevator system which transferred the lead frame magazine between the magazine loader and unloader sections, and the conveying device further... | 03/17/1998 |
| 5725728 | Pellet pick-up device A pellet pick-up device including a wafer sheet stretching structure that includes a vertical driving assembly which raises and lowers the wafer sheet stretching ring and includes synchronously driven first and second motors which raise and lower portions... | 03/10/1998 |
| 5725005 | Walking assistance crutch According to the present invention, there is provided a walking assistance crutch which is comfortable to use, and which can keep a user from falling on his face by its existence even if he falls down by accident. Features in structure of the crutch according ... | 03/10/1998 |
| 5724947 | Fuel pump unit In a fuel pump unit, to solve (1) the problem of a valve of a reserver opening unnecessarily due to vibrations from outside or the like and (2) the problem of it not being possible to supply to an engine remaining fuel having fallen to below a minimum int... | 03/10/1998 |
| 5725317 | Head mechanism for thermal printer In a head mechanism according to the present invention, a thermal head 36 is secured to a main body 20 and a platen roller 24 is mounted on the main body 20 in a freely detachable manner. The platen roller 24 is urged by a head spring 40, which is attache... | 03/10/1998 |
| 5723364 | Method for wire-bonding a covered wire To assure a continuity of bonding by preventing buckling of a covered wire and slipping-off of the covered wire from a second clamper, after a first clamper is closed and the second clamper is opened in a step in which a capillary and first clamper are ra... | 03/03/1998 |
| 5720424 | Wire bonding apparatus In a wire bonding apparatus used in manufacturing, for instance, semiconductor devices, a cover is attached to a detection image intake section of the camera mirror tube of a camera which detects the bonding points of a semiconductor workpiece, and the co... | 02/24/1998 |
| 5719782 | Frequency measuring apparatus and frequency measuring method A frequency measuring apparatus for measuring the frequency of an input signal to be measured with high accuracy. The apparatus includes a crystal oscillator for generating an internal reference frequency, a temperature sensor provided on the crystal osci... | 02/17/1998 |
| 5705833 | Surface-mounted photocoupler A light-emitting element 22 and a light-receiving element 26 are attached to a circuit board so as to oppose each other across the circuit board 2. As a result, light from the light-emitting element 22 arrives at the light-receiving element 26 via the sub... | 01/06/1998 |
| 5701832 | Multi-head sewing machine Disclosed is a multi-head sewing machine having an improved structure for driving a main shaft and a lower shaft for driving needle bars and thread take-up levers so as to prevent distortion of these shafts, in turn, variation of stitch performance in the... | 12/30/1997 |
| 5699815 | Hair clip A fastener part 6 on one end of a base plate 1 includes clip arms 7 having enough length to deform flexibly to release a clip plate 2 from the base plate 1, and extending from the base plate 1 toward an axis part 3 on the other end of the base plate 1, so... | 12/23/1997 |
| 5697777 | Curing device A curing device for drying bonding material used for bonding, for example, chips to a lead frame for semiconductor devices including a workpiece heating chamber casing having heating blocks for heat-drying the bonding material and a gas supply chamber cas... | 12/16/1997 |
| 5698164 | Low-temperature plasma generator The present invention provides a low-temperature plasma generator as an electric discharger which is used for discharging electricity in dry air, humid air or water, thereby removing an offensive odor, sterilizing bacteria, purifying water and so on. In t... | 12/16/1997 |
| 5695395 | Coin dispensing apparatus A coin dispensing apparatus having a simple construction and capable of dispensing coins securely and easily. A guide member is arranged extending along a tangent to a column formed in the center of rotation of the disk, whereby the coins can be smoothly ... | 12/09/1997 |
| 5688425 | Submerged nozzle changing apparatus A submerged nozzle changing apparatus comprises: a slide valve device (32) for controlling the rate of discharge of a molten metal from a molten metal container (30) a nozzle holding cylinder actuator (42) supported in a vertical position under the slide ... | 11/18/1997 |
| 5685589 | Lead frame suction holding device A lead frame suction holding device including a suction holder which is movable horizontally and vertically and is provided with two rows of guide plates. A plurality of suction nozzles are installed on each of the two rows of guide plates so as to suctio... | 11/11/1997 |
| 5684329 | Lead frame for semiconductor device The present invention relates to a lead frame for the formation of a frame structure of an integrated circuit, more particularly, to a lead frame, for a semiconductor device, having a structure possessing excellent bondability, solder wettability, and Ag ... | 11/04/1997 |
| 5683160 | Overhead projector with high illuminance lamp as light source An overhead projector includes a housing including a stage which is formed in its top wall and on which a transparency bearing an image to be projected is placed and an air outlet formed in one of its two side walls, an exhaust fan incorporated in the hou... | 11/04/1997 |
| 5680874 | Apparatus for measuring tooth mobility An apparatus for measuring the teeth for looseness in a form of physical quantity of elasticity, viscosity and mass elements. The apparatus including a signal generator producing analog signals that have a desired frequency and waveform, a vibration drive... | 10/28/1997 |
| 5678335 | Display device and display element unit A display groove is formed along a display pattern provided on a display panel, and a display element unit is arranged along the display groove as a light source to constitute a display device. The display element unit 2 has one or more LED's inserted int... | 10/21/1997 |
