Quotables
"Inventing is a combination of brains and materials. The more brains you use, the less material you need."
Charles Kettering
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8081541 | Optical disc An optical disc includes an electromagnetic coupling module mounted therein. The electromagnetic coupling module includes a wireless IC chip and a feeder circuit substrate in which a feeder circuit including a resonant circuit having a predetermined resonant frequen... | 12/20/2011 |
| 8036070 | Magnetic recording device, especially for a hard disk and its manufacturing process A magnetic recording device comprising at least one unstructured recording support exhibiting at least one elementary magnetic layer, the recording support having a magnetization perpendicular to the plane of the support characterized in that it comprises magnetic e... | 10/11/2011 |
| 7596058 | Recording medium having multiple magnetic layers The magnetic recording medium comprises a backing layer including a first magnetic layer, a second magnetic layer which is formed over the first magnetic layer, is ferrimagnetic and is magnetized in a direction opposite to the first magnetic layer, and a third magne... | 09/29/2009 |
| 7590031 | Optical recording medium having BCA of write-once information An optical disk storing write-once information usable for protecting the copyright of the software by preventing the duplication, unauthorized use, etc., of the software. In the optical disk, a recording layer (213) is formed on a disk substrate (211) ... | 09/15/2009 |
| 7423939 | Method for manufacturing magneto-optical recording medium A method for manufacturing a magneto-optical recording medium in which reading of recorded information is performed through domain wall displacement in a reproduction layer is provided, in which magnetic separation of groove side-wall portions is performed more reli... | 09/09/2008 |
| 7372648 | Optically-assisted magnetic recording head and optically-assisted magnetic recording apparatus A pair of members opposed to each other via a gap are commonly used as an evanescent light probe and a writing magnetic head. When the spacing and width of the gap are smaller than the wavelength λ of injected light, highly intensive evanescent light is generated f... | 05/13/2008 |
| 7368146 | Magneto-optical recording medium, manufacturing method thereof and magneto-optical data recording and playback device A magneto-optical recording medium has a recording layer and a reflective layer on a substrate. The recording layer has a layered structure in which at least one spinel ferrite (or rutile-type oxide or hematite) layer and at least one garnet ferrite layer are piled ... | 05/06/2008 |
| 7361421 | Lubricant, magnetic recording medium and production method of magnetic recording medium A lubricant is obtained by mixing at least one compound selected from specific fluorine-based diester dicarboxylic acid compounds having has two carboxyl groups, two ester bonds, terminal groups each of which is an alkyl group or an alkenyl group, and one fluoroethe... | 04/22/2008 |
| 7357996 | Magnetic recording medium, magnetic recording device, and method of manufacturing magnetic recording medium To suppress a magnetic wall movement in the structure including an amorphous magnetic layer as a recording layer, and to realize a high density recording with a sufficient signal quality level, a magnetic recording medium includes an amorphous magnetic layer (record... | 04/15/2008 |
| 7355929 | Magneto-optical disk and recording and/or reproducing method and recording and/or reproducing apparatus using the magneto-optical disk A magneto-optical disk having a small-sized diameter and a large capacity and able to record and reproduce disk discrimination information, and a recording method and a reproducing method of the same, wherein a recording layer including a main recording region in wh... | 04/08/2008 |
| 7352658 | Method for recording information data to a recording medium by irradiation with a light beam and application of a magnetic field A magnetic recording medium comprises a first magnetic film and a second magnetic film on a substrate. The second magnetic film is composed of a magnetic material preferred for recording and reproduction, and the first magnetic film is composed of a ferrimagnetic ma... | 04/01/2008 |
| 7336887 | Content play back, information processing, and play back restriction Provided is a content play back apparatus including: a play back means for playing content including audio or video; a play list managing means for managing a play list which is a list of identification information on content previously played by the play back means... | 02/26/2008 |
| 7337263 | Method of varying recording density of data storage medium and disk drive using the method A method of and apparatus for varying a recording density of a data storage system. The method includes setting a range of a region whose recording density is to be changed, judging whether a region in which data read and write commands are to be executed is within ... | 02/26/2008 |
| 7319656 | Optical information recording medium, optical information recording apparatus and method The present invention is applicable to a recording apparatus of a CD or DVD, a recording method thereof and a recording medium, and an object of the present invention is to clearly record a second information such as characters and figures between two recording leve... | 01/15/2008 |
| 7313055 | Magnetic domain wall displacement type magneto-optical recording medium Provided is a magneto-optical recording medium capable of accurately reproducing a signal of a recording density exceeding a resolution of an optical system without making a constitution thereof complicated. The magnetic domain wall displacement type magneto-optical... | 12/25/2007 |
| 7277619 | Nano-imprinted photonic crystal waveguide This invention relates to a method for forming a nano-imprinted photonic crystal waveguide, comprising the steps of: preparing an optical film on a substrate; preparing a template having a plurality of protrusions of less than 500 nm in length such that the protrusi... | 10/02/2007 |
| 7243052 | Method and apparatus for determining hysteresis The invention relates to a method and a system for determining hysteresis of a process device in a process environment. The process comprises collecting (50) second-level sample data ys and us from control and measurement signals u and y of a control circuit.... | 07/10/2007 |
| 7237725 | Security marking system and method for minimizing pirating of data on data media including compact discs and digital versatile discs The present invention is a method and system of marking data media products by introducing a predetermined tracing substance constituting a security marking into a polycarbonate (or polystyrene) composition during the manufacturing stages of the polycarbonate materi... | 07/03/2007 |
| 7236443 | Optical scanning device having less response to stray reflections that information layer reflections An optical scanning device incorporating a compound objective lens 10 and a radiaion detector 31 is described for reading an optical record carrier 1 in which the optical record carrier 1 is provided with a transparent layer 2. The... | 06/26/2007 |
| 7200072 | Domain wall displacement magneto-optical recording and reproducing apparatus A recording/reproducing apparatus for a domain-wall-displacement magneto-optical recording medium with good format efficiency, capable of providing a good reproduction signal and securing a maximum recording region for a user is provided which comprises a recording ... | 04/03/2007 |
| 7196975 | Magneto-optical disk with protective layer, and optical disk device On a pit information surface (22d) of a read-only optical disk (22), a protective layer (22f) suited for a floating-type or a sliding-type magnetic head (3) used for a magnetic field modulation type magneto-optical disk is f... | 03/27/2007 |
| 7180831 | Magneto-optical recording medium having a recording layer of columnar structure It is an object of the present invention to provide a magneto-optical recording medium including a recording film having at least a reproduction layer, an intermediate layer, and a recording layer, on an optical disk substrate, wherein the recording film is a magnet... | 02/20/2007 |
| 7161755 | Increasing areal density in magnetic recording media A magnetic recording medium is made of a thin film medium that includes magnetic grains. At least one of a magnetization density of the magnetic grains, a crystalline anisotropy field of the magnetic grains, a thickness of the recording medium, an average diameter o... | 01/09/2007 |
| 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 |
| 7126905 | Information recording medium and information recording/reproducing apparatus to increase recording density An information recording medium 101 includes: a transparent substrate 109 having a first surface A and a second surface B opposite to the first surface A; reflectance reduction means 110 provided on the first surface A of the transparent substra... | 10/24/2006 |
| 7120251 | Data player, digital contents player, playback system, data embedding apparatus, and embedded data detection apparatus A data player for reading contents encrypted by a decoding key from a digital medium, and playing the encrypted contents by using the decoding key which is stored in a key storage unit, comprises: a key obtaining unit for performing mutual authentication with the ke... | 10/10/2006 |
| 7102989 | Recording medium with restricted playback feature and apparatus and methods for forming, recording, and reproducing the recording medium A recording medium, such as a high-density and/or read-only recording medium, such as BD-ROM, capable of preventing unauthorized duplication of data streams, written thereon, onto another medium, such as a BD-RE or BD-R, which includes physical mark information, and... | 09/05/2006 |
| 7069491 | Copy protected DVD and method for producing and validating same A copy protected DVD disc and a method for producing and validating the DVD disc is provided. In an embodiment the method for protecting a DVD from being illegally copied includes producing a signature which includes introducing ambiguous symbols into an ECC block a... | 06/27/2006 |
| 7065033 | Dielectric recording medium, and method of and apparatus for producing the same A dielectric recording medium is provided with three layers of: a dielectric material, an electric conductor, and a substrate, and has a groove on the recording surface of the dielectric material. The groove is provided with one or a plurality of grooves. When a vol... | 06/20/2006 |
| 7061850 | Optical recording medium and recording method for the same A main information area 31 capable of recording an information signal and a subsidiary information area 32 for recording subsidiary information that is different from the information signal are divided in one principal plane direction of a substrate, a... | 06/13/2006 |
| 7058000 | Information recording disc having an anti-reflection layer and information recording/reproducing apparatus An anti-reflection coating layer is formed on the surface portion of a recording medium. This enables to obtain a margin for the air gap thickness change when recording/reproducing an information signal using the “near-field technique” as well as minimize a data... | 06/06/2006 |
| 7054082 | Magnetic transfer method for a high-density magnetic recording medium An accurate magnetic transfer to a high-density slave medium having two magnetic layers and utilizing antiferromagnetic coupling is performed. By applying a first magnetic field that causes both the first and second magnetic layers of the magnetic layer of a slave m... | 05/30/2006 |
| 7050361 | Magneto-optical storage medium and optical disk drive A magneto-optical storage medium that protects against the effects of cross-talk, making it possible to further reduce the level of track density, and which also makes it possible to conduct high-density recording/playback with a reduced magnetic field for erasure a... | 05/23/2006 |
| 7035138 | Magnetic random access memory having perpendicular magnetic films switched by magnetic fields from a plurality of directions A magnetization reversal method is a method of applying an external magnetic field to a magnetoresistive film, in which the magnetoresistive film has a structure wherein a nonmagnetic film is placed between magnetic films with an easy axis of magnetization along a p... | 04/25/2006 |
| 7027386 | Read-only optical recording medium with ZnO near-field optical interaction layer This invention relates to a read-only near-field optical disk using a zinc-oxide (ZnO) nano-structured thin film as the localized near-field optical interaction layer. This read-only near-field optical disk is a multi-layered body at least comprising; (a) a transpar... | 04/11/2006 |
| 7006415 | Sampling clock generator for BCA data decoding A sampling clock generator for BCA data decoding providing a sampling clock, which is proportional to the actual rotation speed of a disk. The sampling clock generator includes a frequency counter, a divider and a frequency divider. The frequency counter counts the ... | 02/28/2006 |
| 6989952 | Magnetic recording disk drive with laminated media and improved media signal-to-noise ratio A magnetic recording disk drive has an inductive write head and a heater to record data in laminated media on the recording disk. The laminated media, with at least two ferromagnetic layers separated by a nonmagnetic spacer layer, improves SNR. Each of the ferromagn... | 01/24/2006 |
| 6963461 | Method for magnetic recording on laminated media with improved media signal-to-noise ratio A magnetic recording disk drive has an inductive write head and a heater to record data in laminated media on the recording disk. The laminated media, with at least two ferromagnetic layers separated by a nonmagnetic spacer layer, improves SNR. Each of the ferromagn... | 11/08/2005 |
| 6961302 | Method and structure for intensifying track seeking signals from an optical disk A method and structure for intensifying track seeking signals from an optical disk, in particular, a recordable digital versatile disk (DVD-R). With the addition of an optical correction layer between a dye material layer and a reflection layer inside the DVD-R, tra... | 11/01/2005 |
| 6944102 | Magneto-optical reader which is optimized by the incident-light polariser A magnetooptic read device in which the figure of merit is optimized mainly by the setting of the incident light polarizer. The component of the incident wave pumps the magnetooptic transducer. The component of the incident wave amplifies the variations in the magne... | 09/13/2005 |
