...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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.
| Number | Title | Issue Date |
| 8141452 | Rotational motion-positioning apparatus A single rotational axis motion generation and positioning apparatus having a work load support connected to a housing by a pivot joint. Rotation of an axial cam supported by the housing, creates a displacement which is transmitted to the work load support by at lea... | 03/27/2012 |
| 7330306 | Interchangeable microscope stage drive assembly An interchangeable microscope stage drive assembly, including a microscope stage, and, a drive mechanism detachably secured to the microscope stage at more than one location of the stage. ... | 02/12/2008 |
| 7282874 | Alignment apparatus, exposure apparatus, and device manufacturing method An alignment apparatus which moves a object comprises a first structure having a holding member which holds the object, a second structure having a magnet which constitutes a linear motor, the linear motor drives the first and second structure, and a flow passage fo... | 10/16/2007 |
| 7178227 | Workpiece presenter for a flexible manufacturing system A workpiece presenter for fixturing a workpiece of a vehicle assembly is provided, including a platform 50, and a tooling plate 7 removably connected to the platform, the tooling plate including a planar body 10 for supporting fixture tools 3... | 02/20/2007 |
| 6943945 | Two axis state for microscope A two axis stage for microscopes that is thin, has reduced vibration, and is adapted for increased stage transportation speeds is capable of being disposed inside a chamber without changing a floor-projected area. The XY stage comprises a base 1, an X table | 09/13/2005 |
| 6920803 | Electromotive stage for microscope A stationary member is fixed to a microscope. A movable member holds a sample and can move in a direction perpendicular to an optical axis of the microscope. A stepping motor moves the movable member. A rotation of the stepping motor is transmitted to the movable me... | 07/26/2005 |
| 6903467 | Tube carrier reaction apparatus The disclosure relates to an apparatus for manufacturing a product, including a product stage assembly, having a movable product stage, the product stage assembly having at least one input is supplied by at least one tube. A tube carrier assembly for positioning the... | 06/07/2005 |
| 6788458 | Microscope stage A microscope stage of this invention includes an upper stage, a handle shaft rotatably supported on the upper stage, a pulley rotatably supported on the upper stage in a position different from the handle shaft, a lower stage directly driven and guided with respect ... | 09/07/2004 |
| 6629471 | X-Y stage apparatus capable of reducing the number of drive sources A first slider moves along a guide rail extending in a Y-axis direction and includes a beam extending in an X-axis direction, a T-shaped section, and an arm member. The T-shaped section moves along the guide rail at an end of the beam. The arm member exte... | 10/07/2003 |
| 6563635 | Microscope stage A microscope stage of this invention includes an upper stage, a handle shaft rotatably supported on the upper stage, a pulley rotatably supported on the upper stage in a position different from the handle shaft, a lower stage directly driven and guided wi... | 05/13/2003 |
| 6369940 | Microscope stage including a pulley rotatably supported on an upper stage A microscope stage of this invention includes an upper stage, a handle shaft rotatably supported on the upper stage, a pulley rotatably supported on the upper stage in a position different from the handle shaft, a lower stage directly driven and guided wi... | 04/09/2002 |
| 6363809 | Precision scanning apparatus and method with fixed and movable guide members An XY stage for precision movement for use in aligning a wafer in a microlithography system. A main stage supporting the wafer straddles a movable beam that is magnetically driven in a first linear direction in the XY plane. A follower stage, mechanically... | 04/02/2002 |
| 6134981 | Precision scanning apparatus and method with fixed and movable guide members An XY stage for precision movement for use in aligning a wafer in a microlithography system. A main stage supporting the wafer straddles a movable beam that is magnetically driven in a first linear direction in the XY plane. A follower stage, mechanically... | 10/24/2000 |
| 6131480 | Hydraulically-operated micromanipulator apparatus A hydraulically-operated micromanipulator apparatus is disclosed. The micromanipulator apparatus comprises: a micromanipulator fine control unit including an operating-side piston finely movable with respect to an operating-side hydraulic cylinder and fin... | 10/17/2000 |
| 6050153 | Hydraulically-operated micromanipulator apparatus A hydraulically-operated micromanipulator apparatus is disclosed. The micromanipulator apparatus comprises: a micromanipulator fine control unit including an operating-side piston finely movable with respect to an operating-side hydraulic cylinder and fin... | 04/18/2000 |
| 6047613 | Drive device for the mechanical stage of a microscope The invention concerns a drive device for the mechanical stage (1) of a microscope, said device having a stationary base plate (2) and slides (3, 4) which are disposed thereon, are movable in the X and Y directions and are used to position an object to be... | 04/11/2000 |
| 6018415 | X-Y table having belt drives for moving a stage of the table in fine increments and microscope comprising the same An X-Y table of a microscope includes an a X-axis moving plate, an object holder mounted on an upper surface of the X-axis moving plate, a Y-axis moving plate to which the X-axis moving plate is slidingly coupled for movement in the X direction, a fixed p... | 01/25/2000 |
| 5996437 | Precision motion stage with single guide beam and follower stage An XY stage for precision movement for use in aligning a wafer in a microlithography system. A main stage supporting the wafer straddles a movable beam that is magnetically driven in a first linear direction in the XY plane. A follower stage, mechanically... | 12/07/1999 |
| 5816097 | Position control apparatus for gyroscope A position control apparatus for a gyroscope mechanically controls a setting position of the gyroscope. The position control apparatus for a gyroscope includes a circular mount for adjusting a setting position of the gyroscope in a predetermined direction... | 10/06/1998 |
| 5802925 | Microscope stage A microscope stage comprising an upper stage and a lower stage provided on a preset microscope and overlapped on each other in a vertical direction, said upper stage being disposed to move in a straight direction with respect to said lower stage, a pair o... | 09/08/1998 |
| 5771749 | Slide mechanism combined rough and fine adjustment in micromanipulator A slide mechanism combined rough and fine adjustment in micromanipulator comprising an inside slider 30 provided with a rough adjustment female screw 30a in axial direction slidably fitted in recessed grooves 12a of a basic outside slider 12 in axial dire... | 06/30/1998 |
| 5623853 | Precision motion stage with single guide beam and follower stage An XY stage for precision movement for use in aligning a wafer in a microlithography system. A main stage supporting the wafer straddles a movable beam that is magnetically driven in a first linear direction in the XY plane. A follower stage, mechanically... | 04/29/1997 |
| 5400674 | Precision component positioner A precision component mounting and positioning apparatus comprises a frame member and a stage member suspended in the frame member. The frame member is adapted to be mounted on a support surface, and the stage member is adapted to receive a precision comp... | 03/28/1995 |
| 5341700 | X-Y movement mechanism An X-Y movement mechanism includes a fixed base having a first surface and a movable member having a second surface. The movable member is disposed for movement relative to the fixed base with the second surface being parallel with and facing toward the f... | 08/30/1994 |
| 5263384 | Moving stage A moving base is provided relative to a stage base fixed to a microscope's body and is movable in a linear direction with a specimen placed thereon. A drive wheel coaxial with an operation handle is mounted on the stage base such that it is rotatable. A r... | 11/23/1993 |
| 4803892 | Manually operable device for displacing movable stages A manually operable device for displacing movable stages includes first and second assemblies each comprising a main handle and a sub handle. A first pinion shaft is extended through both the handle assemblies and its lower end is fixedly secured to a sub... | 02/14/1989 |
| 4712444 | Levered optical mount A mounting device (10) includes first (28) and second (32) levers that are disposed between a base plate (12) and a mounting plate (20) and that are attached to the base plate by flexible metal hinges (36a and 36b). First (56a) and second (56b) adjustment... | 12/15/1987 |
| 4700585 | Drive for the compound stage of a microscope or similar apparatus A drive system for slides and x-y stages in microscopes and similar instruments having the possibilities of both fine control and rapid displacement of the slides over larger distances. The drive system comprises a friction wheel and a friction track prov... | 10/20/1987 |
| 4700584 | Manipulator usable for a glass electrode or the like A manipulator usable for a glass electrode or the like comprises roughly moving mechanisms for roughly moving the glass electrode not only in the longitudinal and lateral directions but also in the heightwise direction, as well as a finely moving mechanis... | 10/20/1987 |
| 4572021 | Motion transmission system An electron microscope stage is manually movable in three orthogonal axial directions and two orthogonal rotational directions by corresponding motion transmission systems. Four of the transmission systems employ telescopic rods and a connecting pin havin... | 02/25/1986 |
| 4552033 | Drive system for a microscope stage or the like A drive system for slides and x-y stages in microscopes and similar instruments having the possibilities of both fine control and rapid displacement of the slides over larger distances. The drive system comprises a friction wheel and a friction track prov... | 11/12/1985 |
| 4189953 | Drive system for mensuration stages or the like The improved drive system for linearly translating the sample platform of a mensuration stage along two axes comprises two drive bars, each bar having one tapered lontitudinal edge. The X-Y position adjustment of the sample platform is controlled by two m... | 02/26/1980 |