| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 434409000 | Mark formed by magnetic attraction between materials (e.g., particles in sheet made visible by movement of magnet over sheet, etc.) | 8 |
| 20080220405 | MAGNETIC DISPLAY FOR USE BY COACHES AND TRAINERS OF VARIOUS SPORTS - A display device or diagramming a play includes a housing. A recess of the housing receives a display panel filled with a layer of magnetic particles and on which an outline of a field of play, or a portion thereof, is drawn. A stylus has a tip end which, when brought into contact with, or in close proximity to, an outer surface of the panel attracts the magnetic particles to the underside to form an image visible to anyone looking at the panel. The user can create as many images as he needs to diagram a play for his team. When done, the user moves a magnetic band underneath the length of the panel to erase the display. | 09-11-2008 |
| 20080274445 | Reversal Magnetic Display Panel - A reversal magnetic display panel where the numbers of writes/erases repeated until the micro magnets in a dispersion liquid sealed in multiple small cells formed between substrates sediment in the lower part of the small cells by repeated writes/erases when the reversal magnetic display panel is used in a vertical position are increased and a favorable display/erase performance is achieved. Between substrates, a dispersion liquid containing a dispersion medium and a thickening agent as main components and further containing micro magnets the both sides of each of which are differently colored are sealed in. Writing is constituted by difference in contrast between the color of the reversed micro magnets and the color of the non-reversed ones. Hollow particles are mixed with the micro magnets so as to reduce the ratio of the specific gravity of the micro magnets to that of the liquid. The residual magnetization per unit mass of the micro magnets is 1.0 to 23.1 A·m | 11-06-2008 |
| 20110039251 | Magnetically actuated visual display board - A magnetically actuated visual display board comprises a grid array of open ended chambers. Display configurations in each chamber utilize a magnetically responsive sliding element to move a display loop to alternate between two different display surfaces to create a desired visual array. A magnetic rod passing a chamber moves the sliding element within the chamber. | 02-17-2011 |
| 20110091860 | MAGNETIC GLASS DRY ERASE BOARD - A magnetic glass dry erase board including a glass sheet, a metal sheet and an adhesive layer. The glass sheet has an inner surface and an outer surface. The metal sheet has an inner surface and an outer surface. The adhesive layer substantially covers the inner surface of the glass sheet and the outer surface of the metal sheet to retain the glass sheet in a stationary relationship with respect to the metal sheet. The adhesive layer also enhances a strength of the glass sheet and protects persons from injury if the glass sheet is broken by retaining glass pieces on the metal sheet. | 04-21-2011 |
| 20110097699 | Magnetically erasable writable educational flash card and method for making the same - Disclosed herein are a magnetically erasable writable educational flash card and method for making the same. The method uses a flash card comprising magnetic display panel, a magnetic die of predetermined pattern such as text character of a language, Arabic numeral, symbol or graphical picture of a learning subject, and a magnetic eraser. To make an educational flash card, a controlled repeated small amplitude sliding movement is applied to the flash card's magnetic display panel in contact with the face of the magnetic die resulting visual display of a mirrored silhouette of the magnetic die's predetermined pattern being created on the magnetic display panel. Two or more such cards comprise an educational flash card set for young children. The advantages of such flash card set include: more effective and enjoyable learning through participation, ergonomically fitful for fine motor skills development, better structured and creative learning, and changeable displaying indicia. | 04-28-2011 |
| 20120244515 | COACH BOARD - A coach board has a mounting board, a transparent film, an attractive board and a box. The transparent film is connected to the mounting board so as to form an interlayer space between the transparent film and the mounting board. The attractive board is removably inserted into the interlayer space between the transparent film and the mounting board and has a court layer. The court layer is attached to the attractive board, is visible via the transparent film and is protected by the transparent film. The box is mounted on the mounting board and receives multiple magnets inside. Therefore, a coach can instruct tactics to players easily by putting the magnets on the transparent film corresponding to the court layer of the attractive board. | 09-27-2012 |
| 20140242568 | APPARATUS FOR REPRODUCING AND ERASING MAGNETIC VISUAL INFORMATION - The invention relates to an apparatus for temporarily displaying visual information, comprising a frame, a plate of material included in the frame that changes colour due to local pressure and when exposed to a magnetic field, assumes its original colour, a magnet movable along the plate, guide means for guiding the magnet along the sheet in a fast position, wherein the magnet is arranged for erasing a part of the plate by its magnetic field during the movement along the plate, whereby the guide means arc arranged for guiding the magnet along a path in a second position different from the first position, whereby the magnetic field generated by the magnet does not erase the first part of the plate and the device comprises operation means for operating between the first and second position of the magnet. | 08-28-2014 |
| 20150104779 | FURNITURE OBJECTS INCLUDING WRITABLE ELEMENTS - A furniture object includes a writable element. The writable element is configured to provide for nonpermanent markings. The writable element is integral to the structure and/or the functionality of the furniture object. | 04-16-2015 |
