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Felix Hoffmann, a German chemist, was searching for something to relieve his father's arthritis. In doing so, he "rediscovered" acetylsalicylic acid and in 1900, patented a stable process for developing it. Hence, we have aspirin.
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| Number | Title | Issue Date |
| 7286450 | Light pickup device with center axis and light balancing adjustment A light pickup device includes a light projection optical system comprising a light source which emits light, and an objective lens which condenses the light on an optical disk, a light detection optical system comprising a light detector, and a condenser lens which... | 10/23/2007 |
| 6963418 | Communication system and method Administering client computer (3) is connected to a plurality of facsimile machines (1) over a LAN (2). The facsimile machines (1) store quick-dial telephone numbers in RAM (11), and operating programs in flash memory (13). ... | 11/08/2005 |
| 6949732 | Optical apparatuses using the near-field light Optical apparatuses are provided that use near-field light, where high spatial resolution and high sensitivity are made compatible. Highly intense near-field light is generated in a narrow area using localized plasmons that are produced in a metal pattern 106 | 09/27/2005 |
| 6760535 | Method and apparatus for cache management for a digital VCR archive An apparatus marks files within a content archive. The content archive contains a database that has a plurality of content files. The content archive also contains a plurality of entries or records. Each of the entries corresponds to a distinct one of the plurality ... | 07/06/2004 |
| 5440531 | Magneto-optical reproducing method A magnetooptical recording method for recording data using a bit having upward-magnetization and a bit having downward-magnetization on a recording layer of a magnetooptical recording medium comprises the steps of using, as the medium, a multilayered magn... | 08/08/1995 |
| 5402397 | Electromagnetic shield device for magneto-optical recording apparatus An optical head applies a laser beam to a region of the magnetooptical disc, and a magnetic head applies a magnetic field to the region of the magnetooptical disc while the laser beam is being applied thereto, thereby to record information in the region. ... | 03/28/1995 |
| 5331611 | Transmission mechanism for magnetic-field generating device in photo-magnetic type recording/reproducing apparatus A recording/reproducing apparatus equipped with an optical pickup device movably disposed in opposed relation to a recording medium for applying a light beam to the recording medium to receive light reflected from the recording medium, and further equippe... | 07/19/1994 |
| 5293291 | Optical integrated device for magneto-optical reproducing head A device comprises five wave guides and two interposed TE-TM mode splitters, formed on a substrate. A first mode splitter splits a first wave guide into second and third wave guides, and a second mode splitter splits a third wave guide into fourth and fif... | 03/08/1994 |
| 5245491 | Magneto-optical head employing optical fiber connected stationary and movable portions An optical fiber type magneto-optical head is capable of realizing satisfactory reductions in size and weight of a movable portion of an optical head. An extinction-type form of the optical fiber type magneto-optical head comprises a first optical device ... | 09/14/1993 |
| 5216562 | Multi-beam optical recording system and method A laser array provides multiple closely spaced light beams. These light beams are reflected off of an optical recording medium. A faceted prism is used to separate the closely spaced beams sets for detection by an optical detector array and detector circu... | 06/01/1993 |
| 5124868 | Magneto-optic player with improved C/N ratio A magneto-optic player for reading an information signal stored in a magneto-optical record medium in the form of vertical magnetization including a semiconductor laser emitting a linearly polarized laser light beam, a beam splitter for transmitting the l... | 06/23/1992 |
| 4933794 | Head for reading a magneto-optical data carrier Data is recorded on a magneto-optical carrier (5), the magnetization of which in each recorded area is capable of reflecting a polarized laser beam (28,31,33) with rotation of the plane of polarization due to the Kerr effect in accordance with the directi... | 06/12/1990 |
| 4754355 | Optical head An optical head for a magneto-optical disk, including a diaphragm for cutting at least an outer portion of a bundle of rays, which is provided in the course of an optical system of a signal detecting portion.... | 06/28/1988 |
| 4571650 | Magneto-optic information storage system utilizing a self-coupled laser An optical information storage system wherein information is read from a magneto-optical storage medium by indicating the storage medium with a first laser beam generated by a semiconductor laser and exploiting the self-coupling effect of the semiconducto... | 02/18/1986 |
| 4561032 | Magnetooptic reproducing device In a magnetooptic reproducing device wherein a light beam polarized in a predetermined direction is incident on a magnetic recording medium and signals recorded on the recording medium are optically read by the utilization of the magnetooptic effect, a po... | 12/24/1985 |
| 4477852 | Magneto-optical recording and reproducing system A magneto-optical recording and reproducing apparatus for recording information on a recording medium made of a magneto-optical recording material. The apparatus is provided with at least two lasers for carrying out simultaneously a combination of two fun... | 10/16/1984 |
| 4466035 | Magneto-optic media and system optimization Magneto-optic media and system optimization including a set of optimized magneto-optic media for use in a magneto-optic recording and readout system employing an incident readout light beam of a given fixed power, Po. The beam is delivered in a... | 08/14/1984 |
| 4451863 | Information reproducing apparatus based on opto-magnetic effect An information reproducing apparatus for reproducing information recorded on a record medium based on an opto-magnetic effect is disclosed. A laser light source, a first polarizing beam splitter, a first Faraday element, a second polarizing beam splitter,... | 05/29/1984 |
