...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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| Application No. | Application Title | Issue Date |
| 20110141489 | MARK POSITION DETECTOR, IMPRINT APPARATUS, AND ARTICLE MANUFACTURING METHOD A detector for detecting a position of a mark comprises: an image sensing device; an optical system which projects the mark onto an image sensing surface of the image sensing device; a pattern located in a position between the image sensing surface and an optical elemen... | 06/16/2011 |
| 20080151266 | Evaluation method for evaluating optical characteristics of optical system, evaluation method for evaluating projector, evaluation device for evaluating optical characteristics, and screen An evaluation method for evaluating optical characteristics of an optical system, the evaluation method includes: providing an optical system that is an evaluation object and that has a light incidence section and a light emission section; disposing a first pattern havi... | 06/26/2008 |
| 20080013105 | Scale Reading Apparatus Apparatus for measuring displacement between two members. A scale is provided on one member and has an incremental pattern with at least one reference mark embedded in it. A read head is provided on the other member and comprises a periodic diffraction means for interac... | 01/17/2008 |
| 20060030033 | Label-free high-throughput optical technique for detecting biomolecular interactions Methods and compositions are provided for detecting biomolecular interactions. The use of labels is not required and the methods can be performed in a high-throughput manner. The invention also provides optical devices useful as narrow band filters. ... | 02/09/2006 |