The first match was accidentally discovered in 1826 when John Walker scraped a stick with chemicals on the end against a stone floor.
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| Number | Title | Issue Date |
| 7195324 | Disc storage unit A disc storage unit includes a case, a tray supported by the case and configured to support an array of discs in respective parallel vertical planes across which respective coaxial axes of the discs pass horizontally. There is a disc-raising mechanism having a finge... | 03/27/2007 |
| 6995973 | Preventing a plurality of electronic devices from being pulled out of a rack simultaneously One embodiment of the invention includes a method for preventing a plurality of electronic devices from being pulled out of an equipment rack simultaneously. The method includes determining with an electronic sensor module whether an electronic device of a plurality... | 02/07/2006 |
| 6813147 | Portable disk player A disk player includes: a base unit, to which a display unit is rotatably connected, having an upper housing and a lower housing, a board installed between the upper housing and the lower housing, a display LCD installed on an upper surface of the board for displayi... | 11/02/2004 |
| 6717890 | Information processing apparatus having a multitasking function with one or more optical discs A multitasking information processing method comprises the steps of (a) providing a plurality of turntables each for detachably storing an optical disc thereon; (b) affording a plurality of optical units each comprising a driving means and an optical read head; (c) ... | 04/06/2004 |
| 6542613 | Electronic sound generator attachment for children's slides A sound generating attachment for a slide of the type having an inclined sliding surface, a pair of raised sidewalls at opposite sides of said surface and a handrail extending up from one of the sidewalls. The attachment includes a weather-resistant housi... | 04/01/2003 |
| 6058097 | Changer-type disk playback device A disk transfer mechanism in a disk player is sloped upward toward the front of the disk player to align a disk transfer plane passing approximately through the center of a disk insertion opening. The slope of the disk transfer plane avoids interference b... | 05/02/2000 |
| 5802022 | Disk changer for checking the position of disks on a roulette without drawing a tray out of the disk changer A disk changer in which it is possible to check the position of disks seated on a roulette inside the disk changer without drawing out a tray from the disk changer, the roulette moving with the tray and being disposed below the tray. The disks seated on t... | 09/01/1998 |
| 5790485 | Automatic disk changer with lid arranged to prevent unintentional dropping of disks from a disk arranging stand An automatic disk changer, includes a housing having an opening in its front wall, and accommodates a disk arranging stand on which a number of disks put in the housing through the opening are arranged at predetermined intervals, and a carriage which is m... | 08/04/1998 |
| 5777958 | Door structure for a recording medium reproducing device A recording medium reproducing device includes a casing, a reproducing section provided within the casing, a recording medium changer provided adjacent to the reproducing section within the casing and a door provided at an opening of the recording medium ... | 07/07/1998 |
| 5748575 | Information processing apparatus having a multitasking function with one or more optical discs A high-performance optical information processing apparatus having various hardware for arriving at multitasking function. The optical information processing apparatus provides disc-loading and -unloading flexibility, allows a user to launch a software pr... | 05/05/1998 |
| 5668790 | Disk reproducing apparatus with plural disk trays A flexible rack member has a substantially V-shaped cam portion formed therein. There is a substantially U-shaped guide slit formed on a wall of a housing. A support bar projected from a reproducing unit is formed so as to fit in a cam portion through the... | 09/16/1997 |
| 5253234 | Disk storage/select player A disk storage/select player includes several disks and several menu boards for indexing data items contained on the disks. The menu boards are each shaped like a polyhedral column. A driver turns one of the menu boards, and a synchronous rotation transfe... | 10/12/1993 |
| 5197057 | Disc changer with dust cover A disc changer for sequentially playing back a plurality of discs such as compact discs has a circular tray rotatably mounted on a base for supporting a plurality of discs replacably mounted on a horizontal surface. A drive mechanism rotates the tray and ... | 03/23/1993 |
| 5189652 | Multi-disc recording and reproducing apparatus having detachable optical head units A stationary type optical disc apparatus which includes a housing, a plurality of disc media contained in the housing and arranged in parallel to each other, a plurality of head units detachably inserted into the housing along rails formed in parallel to ... | 02/23/1993 |
| 5119354 | Disk reproducing apparatus A disk playing apparatus is capable of playing a plurality of disks or disks of different diameters. A disk transfer mechanism is provided between a magazine for storing the plurality of disks and a disk musical performance mechanism disposed obliquely an... | 06/02/1992 |
| 4899326 | Magazine-housed disk player A magazine-housed disk reproducing apparatus is disclosed which enables the user to easily determine the contents of the various disks contained in the magazine. The names of tunes and the like provided on the various available disks are stored in a memor... | 02/06/1990 |
| 4841499 | Multi-disc player A carriage supporting apparatus in a disc player is disclosed which comprises a carriage plate; a holder for supporting the carriage plate; a first damper portion provided at one of the carriage plate and the holder, the first damper portion having an ann... | 06/20/1989 |