...that "patent leather" got its name because the process of applying the polished black finish to leather was once patented?
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| Number | Title | Issue Date |
| 8188397 | Sheet switch module A sheet switch module (21) including a circuit board (22), at least one key switch (25) mounted on one surface of the circuit board (22), a light-guiding sheet unit (30) covering one surface of the key switch (25), at least ... | 05/29/2012 |
| 8173920 | Load control device having a modular assembly A load control device has a modular assembly to allow for easy adjustment of the aesthetic and the color of the load control device after installation. The load control device comprises a user interface module and a base module. The user interface module includes an... | 05/08/2012 |
| 8168903 | Illuminated keyboard An illuminated keyboard includes a frame plate, a character keycap, a light source, a membrane plate, a switch circuit plate and a base plate. The character keycap is connected with the frame plate, and movable upwardly or downwardly with respect to the frame plate.... | 05/01/2012 |
| 8164015 | Movable contact unit and switch using the same A movable contact unit includes a light-guide sheet, a cover sheet, a movable contact, and a light-transmissive light-guide portion. The light-guide sheet includes a film-shaped substrate, and a convex and concave luminescent portion provided on the substrate. The c... | 04/24/2012 |
| 8164014 | Light guiding sheet and movable contact body using the same A concavo-convex light emitting section provided on an under surface of a base material is formed of a synthetic resin with inorganic oxide dispersed therein. A larger amount of light is reflected by inorganic oxide having a large refractive index and dispersed insi... | 04/24/2012 |
| 8143541 | Movable contact assembly including light inlet having plural grooves, and switch using the same A movable contact assembly includes a light guiding sheet which is light transmittable, and a movable contact provided on the light guiding sheet. The light guiding sheet has a portion having the movable contact provided thereon and a portion having plural grooves p... | 03/27/2012 |
| 8124897 | Input unit for electrotechnical devices The invention relates to an input unit for electrotechnical devices, the unit being configured such that it is technically particularly effective, yet still cost-effective. Further, it is the aim to also provide illumination elements at little expense. For touching ... | 02/28/2012 |
| 8093519 | Keypad module of non-backlight panel and panel assembly of the same A keypad module includes a non-backlight layer made of an opaque thin sheet, and a key layer made of an ultraviolet curable resin. One surface of the non-backlight layer is provided thereon with a recognition region. The key layer has a base portion and a plurality ... | 01/10/2012 |
| 7999203 | Electroluminescent keyboard An electroluminescent keyboard includes a plurality of membrane switch structures, a plurality of keycaps, a plurality of electroluminescent elastic members, and an electrode layer. The electroluminescent elastic members are arranged between the keycaps and respecti... | 08/16/2011 |
| 7977593 | Backlighted key for a keypad of an electronic device The disclosure relates to a key plunger and a key assembly for a key of an electronic device. The plunger comprises: a stalk made of a first material allowing light to pass through and a body section connected to the top of the plinth. In the plunger, the body secti... | 07/12/2011 |
| 7960663 | Luminous switch and electronic device provided with the same A luminous switch using an inorganic EL material is provided with a plurality of switch sections so as to reduce acoustic noise. The switch sections are provided with a plurality of protruding parts (112) and a plurality of supporting sections (113) fo... | 06/14/2011 |
| 7952043 | Keyboard with backlighting functionality A keyboard with backlighting functionality includes: a membrane circuit substrate having an upper circuit sheet, an insulator sheet, and a lower circuit sheet laminated together in sequence; a press key set having a plurality of press keys that are disposed on the m... | 05/31/2011 |
| 7943876 | Light emitting apparatus for clothing handler A light emitting apparatus is provided for a clothing handler that handles clothes received therein. The light emitting apparatus includes a selection device that selects processes for handling the clothes, light emitting devices that emit light according to a selec... | 05/17/2011 |
| 7943877 | Switch structure having display and playback device A switch structure having a display and playback device is proposed. The switch structure comprises an upper housing and a lower housing jointly enclosing therein the display and playback device that is connected to a circuit board. A resilient member is provided fo... | 05/17/2011 |
| 7935904 | Keypad assembly Provided is a keypad assembly used as a data input unit in various electronic devices. The keypad assembly includes a main board having one or more metal domes formed at predetermined positions on the main board, and a keypad disposed on the main board to apply a pr... | 05/03/2011 |
| 7932474 | Illuminated dual action switch An illuminated switch comprising a four-way knob and a push knob, wherein the push knob has two legs which slide along a guide surface on an internal pusher member. Tilt activation of the four-way knob results in the push knob also being tilted. When the user has pu... | 04/26/2011 |
| 7915552 | Control panel assembly and method for controlling thereof A control panel assembly is disclosed for making it easy to manipulate buttons of home appliances, the control panel including at least one LED connected to a circuit board for selectively emitting light, a switch connected to the circuit board and provided adjacent... | 03/29/2011 |
| RE42199 | Integrated touch sensor and light apparatus A touch sensor is physically integrated with a light emitting device to provide a switching device with built-in backlighting. In some embodiments, the touch sensor and the light emitting device share electrical components. ... | 03/08/2011 |
| 7893373 | Multi-segment backlight system and method for keyboards An electroluminescent apparatus includes a protection layer characterized by two or more non-overlapping regions and a back electrode layer which includes two or more back electrode regions. Each of the back electrode regions overlies a corresponding one of the non-... | 02/22/2011 |
| 7863532 | Illuminated keypad assembly A key assembly (10) for use in a electronic device is provided. The key assembly (10) comprises a light guiding plate (18), a keypad (12), and a key seat (14). The key seat (14) has a number of positioning poles (1442... | 01/04/2011 |
| 7804035 | Switch mechanism, and associated method, for light assembly or other electrical device An apparatus designed to suspend an electrical device such as a light bulb and to turn the light bulb on or off by exerting a force on the bulb itself, an encasing around the bulb, the conductive leads, or an extension thereof. When force is exerted, tension causes ... | 09/28/2010 |
| 7718909 | Contact holding sheet provided with a light guide A contact holding sheet with a light guide without using a holding sheet with protrusions made of resin is provided. The contact holding sheet does not require a protrusion fabrication process, thereby reducing costs, and making the contact holding sheet thin withou... | 05/18/2010 |
| 7692111 | Illuminating structure A distinctive structure, such as an illuminating structure is provided. The illuminating structure includes an illuminating element that is placed in an opening of a surrounding area. The opening includes a curved side wall of a particular radius to reflect any ligh... | 04/06/2010 |
| 7687730 | Operating switch unit for use in automotive vehicle A switch panel including a switch unit is mounted on a dashboard of an automotive vehicle. The switch unit has switches for operating devices mounted on the vehicle and ornamental members disposed between the switches. The ornamental member is composed of a base por... | 03/30/2010 |
| 7683279 | Light emitting keypad comprising light guide film and light guide The present invention provides a light emitting keypad having a very slim light guide film, and a light guide film for a keypad backlight. Particularly, a reflection layer is formed on a lower portion of the light guide film, resulting in more improved luminance. Ac... | 03/23/2010 |
| 7679015 | Keypad assembly for electronic device A keypad assembly includes a pressing surface layer, a pattern layer, an elastic layer, a light guiding layer, and a pressing bottom layer. The pattern layer is under the pressing surface layer. The elastic layer is located between and interlocks the pattern layer a... | 03/16/2010 |
| 7667151 | Arrangement including rigid housing and display Described is a device including a housing and a display arrangement. The housing is integrally formed (i.e., a single-piece housing) and has a predefined substantially transparent area. The housing has also at least one opening. The display arrangement is situated i... | 02/23/2010 |
| 7629547 | Illuminating of an electrical device Present invention enables to illuminate an artwork or alphanumerics of related key(s) of an electrical device from above with illumination module situated in the vicinity of the artwork or alphanumerics. Present invention also enables the use of opaque material in t... | 12/08/2009 |
| 7619173 | Light guide sheet and movable contact unit and switch using the same The disclosed relates to a light-guide-sheet used in operation panel of a various electronic equipment, and a movable-contact-unit and a switch using the same, which have a simplified structure free from uneven illumination and a cheap cost price. Therefore, the lig... | 11/17/2009 |
| 7619174 | Illuminated switch device An illuminated switch device includes: a casing with an open upper side that has a partition wall formed on the inner bottom thereof; light sources that are provided on the inner bottom in a plurality of regions partitioned by the partition wall; an operating body t... | 11/17/2009 |
| 7608792 | Membrane keyboard/keypad with arrangement for uniformly lighting keys from background Membrane keyboard for notebook computer and membrane keypad for cellular phone are provided. For the former, the membrane keyboard includes a frame board comprising units having an aperture; transparent keys comprising a bottom peg; resilient bridge structures on th... | 10/27/2009 |
| 7601926 | Keypad with phosphor, keypad assembly and portable terminal A keypad having a phosphor is disclosed. The keypad includes a light guide panel, the interior of which ultraviolet light propagates through; and at least one key top disposed on top of the light guide panel including a phosphor to absorb the ultraviolet light passi... | 10/13/2009 |
| 7582838 | Flashlight electrical switch and charging indicator An electrical switch arrangement comprises at least one actuator for selectively making and breaking an electrical connection between electrical contacts thereof, and an indicator light source for selectively producing light. A switch housing supports the actuator s... | 09/01/2009 |
| 7582839 | Backlighted key for a keypad of an electronic device The invention relates to a key plunger for a key of an electronic device. The plunger comprises: a stalk made of a transparent material allowing light to pass through; a plinth connected to the top of the stalk; and a body section connected to the top of the plinth ... | 09/01/2009 |
| 7576292 | LED illuminated door chime push button with adjustable task light An illuminated doorbell pushbutton assembly includes a pushbutton assembly that uses a light source, or a plurality thereof to illuminate the pushbutton. The assembly also includes a user-adjustable rotating task light that can be used to direct light to a door lock... | 08/18/2009 |
| 7572994 | Keypad and method for fabricating same Disclosed is a keypad and method for fabricating same. The keypad comprises at least one key top, a waveguide having an upper surface on which the key top is disposed and a lower surface on which a plurality of reflective patterns are formed to reflect part of light... | 08/11/2009 |
| 7531764 | Keyboard illumination system A keyboard illumination system comprises an electronic device having a keyboard with at least one keycap, the at least one keycap having disposed thereon at least two different legends, at least one of the two different legends visible in response to being illuminat... | 05/12/2009 |
| 7498533 | Keypad device A keypad device includes a keypad with a plurality of keys in a defined order, and a light guide plate disposed under the keypad. The light guide plate includes a plurality of patterns formed by a method of printing on a surface thereof, and each pattern includes ad... | 03/03/2009 |
| 7488910 | Key assembly and mobile terminal having the same A key assembly and a mobile terminal having the same. The key assembly includes a plurality of key buttons, a light guiding sheet arranged below at least one of the plurality of key buttons, a light emitter to generate light into an edge of the light guiding sheet, ... | 02/10/2009 |
| 7488909 | Lighted switch apparatus A lighted switch apparatus includes a casing (upper case) that has an opening; an operating part that is movable and has at least a pair of indicators; and a light source that is disposed in the casing (the upper case and a lower case). In this case, the operating k... | 02/10/2009 |