...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Number | Title | Issue Date |
| 6705487 | Assistance tray for manual distribution used in medicine sharing and packing device An assistance tray for manual distribution used in a medicine sharing and packing device with a disk-type tray for manual distribution of pills mounted in the front side. The assistance tray includes an assistance tray body at the rim portion of which a plurality of... | 03/16/2004 |
| 6655567 | Power exhaust device for packing sheet used in sharing and packing device of medicine A power exhaust device for packing sheet used in sharing and packing device of medicine, which is mounted at the discharge position of the packing sheet containing medicine and designed to feed the packing sheet forcedly, comprises a primary motor and a s... | 12/02/2003 |
| 6591975 | Inlet rolling device of power exhaust conveyor for packing sheet used in sharing and packing device of medicine An inlet rolling device of power exhaust conveyor for packing sheet used in sharing and packing device of medicine according to the present invention, wherein the power exhaust conveyor is so constructed that a sponge roller is mounted on the inlet side, ... | 07/15/2003 |
| 6510668 | Drum of medicine sharing and packing device A drum of a medicine sharing and packing device wherein a plurality of tablet cassettes 1a are arranged and passages are formed to guide tablets down, comprises a barrel-shaped drum body 1c formed in two circular arc shapes facing each other and auxiliary... | 01/28/2003 |
| 6508045 | Drum of medicine sharing and packing device A drum of a medicine sharing and packing device, wherein a drum has a plurality of tablet cassettes 2a arranged and passages 2b formed to guide tablets down, comprises a barrel-shaped drum body 2c formed in two circular arc shapes facing each other and au... | 01/21/2003 |
| 6449921 | Tablet supplying and packaging apparatus having turntable and tablet cassettes A tablet supplying and packaging apparatus comprises a housing, a turntable having tablet containers with plates each hingedly engaged a container portion, so tablets are either maintained in each container or downwardly discharged when said plate is rele... | 09/17/2002 |
| 6367232 | Tablet cassette installation-error preventing system for automatic tablet supplying and packaging apparatus A tablet cassette installation-error preventing system comprises cassette supports each having a front side, a rear side, a top side, and a rotor drive therein, wherein the rear side is fixedly attached on the outer periphery of a tablet dropping unit. Pi... | 04/09/2002 |