Did You Know...
...that Charles Goodyear performed some of his experiments on rubber while in debtor's prison? He was there so often he referred to it as his "hotel". Chronically in debt because of poor business sense and ill health, Goodyear depended on the generosity of friends and family. Even after he unlocked the secret to vulcanizing rubber, he was unable to improve his financial situation. When he died, his estate was $200,000 in debt.
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| Number | Title | Issue Date |
| 7751302 | Information media and method and apparatus for writing and reproducing information using the same Provided are a method and an apparatus for reproducing information using a semiconductor probe. The apparatus includes a storage media including a ferroelectric recording layer which stores information by arranging a polarization direction of polarization domains of... | 07/06/2010 |
| 7426174 | Information recording medium having pair of electrodes Disclosed herewith is a method for enabling fast and high density recording of information. A voltage is applied to a recording layer formed between a pair of electrodes. The distance between the pair of electrodes is set wider at one of land and groove areas of a s... | 09/16/2008 |
| 7351460 | Information recording medium, information recording device, and information recording method An information recording medium includes an insulating member, first and second electrodes formed in one plane of the insulating member, and a conductive layer having an electrochromic material providing continuity with the first and second electrodes. A gap between... | 04/01/2008 |
| 7336590 | Dielectric reproducing apparatus, dielectric recording apparatus, and dielectric recording/reproducing apparatus A dielectric reproducing apparatus is provided with: a probe for applying an electric field to a dielectric material of a dielectric recording medium; a return electrode for returning the electric field applied from the probe; an inductor placed between the probe an... | 02/26/2008 |
| 7266065 | Apparatus for discriminating optical recording medium and method for discriminating optical recording medium It is an object of the present invention is to provide an apparatus for discriminating an optical recording medium and a method for discriminating an optical recording medium which can reliably discriminate the kind of an optical recording medium even in the case wh... | 09/04/2007 |
| 7263053 | Information recording method and information recording apparatus An information recording method and information recording apparatus is capable of resolving the trade-off relation between recording density and transmittance, wherein either the reproduction (playback) signal quality or the recording sensitivity is lowered. For thi... | 08/28/2007 |
| 7203152 | Multi-stack rolled-up information carrier The invention relates to an information carrier for scanning information by means of an optical beam having a wave-length. The information carrier comprises a central hole (11) and at least two information stacks (13, 14) rolled up around said hole. Ea... | 04/10/2007 |
| 7170843 | High-density data storage medium, method of manufacturing the data storage medium, data storage apparatus, and methods of writing data on, and reading and erasing data from the data storage medium by using the data storage apparatus A high-density data storage medium, a method of manufacturing the data storage medium, a high-density data storage apparatus, and methods of writing data on, and reading and erasing data from the data storage medium by using the data storage apparatus are provided. ... | 01/30/2007 |
| 7149180 | Apparatus for recording information in and/or reproducing information from a ferroelectric recording medium A dielectric recording medium in a disc form is provided with: a center hole; an inner area; a recording area; and an outer area, arranged concentrically from the inside in this order. The inner area, the recording area, and the outer area contain a uniform and flat... | 12/12/2006 |
| 7060393 | Optical recording medium and optical recording apparatus There is provided an optical recording medium comprising a recording layer containing a charge-generating material capable of generating a first electric charge and a second electric charge by beam irradiation, the second electric charge having a different polarity ... | 06/13/2006 |
| 7027364 | Information storage apparatus using a magnetic medium coated with a wear-resistant thin film There is provided an information storage apparatus including recording medium and a head. The recording medium has an electrode layer, a magnetic layer that is stacked on the electrode layer, and a wear-resistant thin film that is stacked on the magnetic layer. The ... | 04/11/2006 |
| 6977883 | Information recording medium having pair of electrodes Disclosed herewith is a method for enabling fast and high density recording of information. A voltage is applied to a recording layer formed between a pair of electrodes. The distance between the pair of electrodes is set wider at one of land and groove areas of a s... | 12/20/2005 |
| 6577591 | Optical recording medium Disclosed is an optical recording medium having a charge generating ability capable of generating electric charges with different polarities upon irradiation with light and a charge transporting ability capable of transporting at least one of the electric... | 06/10/2003 |
| 5751689 | Information recording medium An information recording and reproducing method and apparatus with increased recording density of an information recording medium using the sample servo method driven with a fixed angular velocity from the innermost circumference to the outmost circumfere... | 05/12/1998 |
| 5724336 | Tera-byte disk drive A new form of rotating media disk drive is described. Data storage densities of many gigabits per square inch can be obtained at low cost. Data is stored in localized regions of electric charge that are stored within a thin dielectric layer that is coated... | 03/03/1998 |
| 5598398 | Multiple data surface optical data storage system An optical data storage system comprises a multiple data surface medium and optical head. The medium comprises a plurality of substrates separated by a light transmissive medium. Data surfaces are located on the substrate surfaces which lie adjacent a lig... | 01/28/1997 |
| 5459710 | Apparatus for recording information in data sections having number of bytes which increases with increase in circumference of tracks on medium An information recording and reproducing method and apparatus with increased recording density of an information recording medium using the sample servo method driven with a fixed angular velocity from the innermost circumference to the outmost circumfere... | 10/17/1995 |
| 5388090 | Method, apparatus, and medium for recording information in data sections having number of bytes which increases with increase in circumference of tracks on medium An information recording and reproducing method and apparatus with increased recording density of an information recording medium using the sample servo method driven with a fixed angular velocity from the innermost circumference to the outmost circumfere... | 02/07/1995 |
| 5291472 | Information recording and reproduction methods using oscillation medium or transducer High density recording systems and methods are disclosed which employ a radiation beam to form spot-like recordings in record members such as discs, tapes and cards. The angle, offset or cross-sectional shape of the recording beam can be varied so as to v... | 03/01/1994 |
| 5255263 | Information reading system and record carrier and reading device for use in such a system The disclosed information reading system comprises a record carrier (1) having at least two parallel tracks (2a, 2b) whose mutual distance is so small that the radiation beam (10) is modulated by the information patterns of the two tracks (2a, 2b) when th... | 10/19/1993 |
| 5210738 | Optical information recording medium An optical information recording medium, such as an optical disk, includes a meandering guide groove being varied in period according to first additional information and in amplitude according to second additional information. The optical information reco... | 05/11/1993 |
| 5166006 | Textured thin-film substrate and method A method of forming an isotropic texture having a selected summit density and surface roughness in a selected inner-diameter annular zone of a thin-film medium substrate having a polished metal coating on the substrate. The zone is selectively exposed to ... | 11/24/1992 |
| 4907216 | Optical record carrier having position indentifying track modulation A system for recording and/or reading an information signal (Vi) on an elongated track (4) of an optically readable record carrier (1). A position-identifying signal (Vp) which is synchronous with a clock signal is recorded on the tr... | 03/06/1990 |
| 4860277 | Medium and method for irreversible storage of information A medium for irreversible information storage by locally changing the electrical conductivity of a carrier whose discrete areas of electrical conductivity have been produced by means of polymeric systems which contain conjugated double bonds and are forme... | 08/22/1989 |
| 4827466 | Information signal recording medium electrostatic capacitance type A recording medium of electrostatic capacitance type is recorded with an information signal thereon as variation of geometrical shape of the recording surface part of the recording medium. The signal is reproduced from the recording medium by the variatio... | 05/02/1989 |
| 4776935 | High density record including carbon black particles purified by electrolysis A high density information record of the electrostatic capacitance type which comprises a record substrate on which signal information is recorded as geometric variations. The substrate is made of a vinyl chloride resin, and carbon black which is purified... | 10/11/1988 |
| 4663753 | Recording medium and method of making the same A method is disclosed for recording information wherein an information-containing surface relief image is mechanically micromachined into a recording medium formed of a copper/oxygen amalgam containing 8 to 11 atomic weight percentage of oxygen and having... | 05/05/1987 |
| 4646284 | High density information record medium using carbon black particles surface-treated with silicone oil High density information signal recording media of an electrostatic capacitance type, in which an information signal is recorded as geometric variations. The medium consists of a conductive resin composition which comprises a vinyl chloride resin, carbon ... | 02/24/1987 |
| 4631717 | High density information records of an electrostatic capacitance type High density information records formed from conductive resin compositions which comprise a graft polymer obtained by subjecting vinyl chloride monomer to graft polymerization with a copolymer of ethylene and vinyl acetate having a content of vinyl acetat... | 12/23/1986 |
| 4604687 | Method and system for storing and retrieving multiple channel sampled data A method and system for recording and playing back from a bulk digital data storage medium having unequal access time, such as a rotating magnetic disk, data of a plurality of separate files, such as multi-channel sound information. Blocks of the digital ... | 08/05/1986 |
| 4592862 | Conductive resin composition and information record A conductive resin composition comprising a specific type of graft polymer of vinyl chloride and a vinyl chloride/acrylic ester copolymer, and a conductive powder used in an amount of from 10 to 30 wt % of the graft polymer. The conductive composition is ... | 06/03/1986 |
| 4575834 | Method of improving the signal-to-noise ratio in a capacitance electronic disc system The audio signal-to-noise ratio obtainable in a capacitance electronic disc system which includes a conductive disc formed from a plastic resin containing conductive particles and a playback stylus is increased by spacing the playback stylus at a slight d... | 03/11/1986 |
| 4560601 | High-density information disc lubricants High-density information records are lubricated with a methyl alkyl siloxane lubricant containing an effective amount of a donor-acceptor complex to reduce moisture sensitivity.... | 12/24/1985 |
| 4561087 | Conductive video disc A video disc comprises a grooved disc having video information in the form of a surface relief pattern within the groove, the disc made from a plastic material containing finely divided conductive particles such that the bulk resistivity at 900 MHz is les... | 12/24/1985 |
| 4548739 | High density information records made of conductive resin compositions comprising a specifically-treated vinyl chloride-base resin A high density information record of the electrostatic capacitance type comprising a record substrate on which signal information is recorded as geometric variations. The record substrate is made of a conductive resin composition comprising a vinyl chlori... | 10/22/1985 |
| 4540615 | High-density information disc lubricant Tetraphenyl siloxanes having the formula ##STR1## wherein R1 and R4 can be hydrogen or lower alkyl, R2 and R3 can be hydrogen, phenyl or lower alkyl and n is 0 or 1, when added to methyl alkyl siloxane lubr... | 09/10/1985 |
| 4538252 | Light induced capacitance changes in donor polymers (or small molecules) films and its use for information storage in video disks and the like A method for capacitatively storing data on a grooveless storage device is provided. The storage device is comprised of a conductive substrate having a layer of a photosensitive composition which dielectric constant is varied in the presence of irradiatio... | 08/27/1985 |
| 4525402 | High-density information disc lubricants A titanium coupling agent of the formula ##STR1## wherein R3 is methyl, ethyl or isopropyl and R4 and R5 are long chain alkyl groups of 8-20 carbon atoms, when added to a fractionated methyl alkyl siloxane lubricant f... | 06/25/1985 |
| 4522747 | Capacitance electronic disc molding compositions An improved conductive molding composition for the preparation of high density capacitance electronic discs is disclosed. The disclosed compositions are improved by the utilization of a solid plasticizer, cumylphenyl isophthalate, represented by the formu... | 06/11/1985 |
| 4517117 | Stabilizers for CED compositions An improved conductive molding composition for the preparation of high density capacitance electronic discs is disclosed. The disclosed compositions are improved by the replacement of most or all of the conventionally used stabilizer ingredient with a tin... | 05/14/1985 |
