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Hideharu Tajima

Hideharu Tajima, Izumi-Shi JP

Patent application numberDescriptionPublished
20100103807Optical data recording medium and method for reproducing recorded data - An optical data recording medium, in which irradiation of a light beam is used for recording and/or reproducing data includes (i) a substrate having an a rise and/or a recess which are a light-incident surface, (ii) a reflective layer, provided on the light-incident surface of the substrate, for reflecting the light beam, (iii) a light absorption layer for converting, to heat, a light of the light beam to heat on the surface of the reflective layer, (iv) a reproducing layer, provided on the surface of the heat-light converting layer, having a transmittance that changes in accordance with a light intensity distribution of the light beam. The optical data recording medium is excellent in super-resolution property, and enables reproduction of a shorter mark length.04-29-2010
20100254247Optical data recording medium and method for reproducing recorded data - An optical data recording medium, in which irradiation of a light beam is used for recording and/or reproducing data includes (i) a substrate having an a rise and/or a recess which are a light-incident surface, (ii) a reflective layer, provided on the light-incident surface of the substrate, for reflecting the light beam, (iii) a light absorption layer for converting, to heat, a light of the light beam to heat on the surface of the reflective layer, (iv) a reproducing layer, provided on the surface of the heat-light converting layer, having a transmittance that changes in accordance with a light intensity distribution of the light beam. The optical data recording medium is excellent in super-resolution property, and enables reproduction of a shorter mark length.10-07-2010
20100329106Optical data recording medium and method for reproducing recorded data - An optical data recording medium, in which irradiation of a light beam is used for recording and/or reproducing data includes (i) a substrate having an a rise and/or a recess which are a light-incident surface, (ii) a reflective layer, provided on the light-incident surface of the substrate, for reflecting the light beam, (iii) a light absorption layer for converting, to heat, a light of the light beam to heat on the surface of the reflective layer, (iv) a reproducing layer, provided on the surface of the heat-light converting layer, having a transmittance that changes in accordance with a light intensity distribution of the light beam. The optical data recording medium is excellent in super-resolution property, and enables reproduction of a shorter mark length.12-30-2010
20110044148Optical data recording medium and method for reproducing recorded data - An optical data recording medium, in which irradiation of a light beam is used for recording and/or reproducing data includes (i) a substrate having an a rise and/or a recess which are a light-incident surface, (ii) a reflective layer, provided on the light-incident surface of the substrate, for reflecting the light beam, (iii) a light absorption layer for converting, to heat, a light of the light beam to heat on the surface of the reflective layer, (iv) a reproducing layer, provided on the surface of the heat-light converting layer, having a transmittance that changes in accordance with a light intensity distribution of the light beam. The optical data recording medium is excellent in super-resolution property, and enables reproduction of a shorter mark length.02-24-2011

Patent applications by Hideharu Tajima, Izumi-Shi JP

Hideharu Tajima, Osaka-Shi JP

Patent application numberDescriptionPublished
20100046333OPTICAL INFORMATION RECORDING MEDIUM AND OPTICAL INFORMATION PROCESSING APPARATUS - This invention allows super-resolution reproduction with which a better bER value is attainable, when information is recorded by a random pattern including a mark length not longer than a resolution limit, by use of a highly versatile signal decoding method.02-25-2010
20100091638Optical information recording medium reproducing apparatus, method for reproducing optical information recording medium, program for reproducing optical information recording medium, and computer readable recording medium - An optical information recording medium reproducing apparatus 04-15-2010
20100118672OPTICAL INFORMATION STORAGE MEDIUM, OPTICAL INFORMATION STORAGE MEDIUM PLAYBACK APPARATUS, METHOD OF CONTROLLING OPTICAL INFORMATION STORAGE MEDIUM PLAYBACK APPARATUS, CONTROL PROGRAM OF OPTICAL INFORMATION STORAGE MEDIUM PLAYBACK APPARATUS, AND STORAGE MEDIUM STORING THE PROGRAM THEREIN - A super resolution medium (05-13-2010
20100278026OPTICAL INFORMATION RECORDING MEDIUM REPRODUCING DEVICE, AND OPTICAL INFORMATION RECORDING MEDIUM - An optical information recording medium reproducing device (11-04-2010

Hideharu Tajima, Ikoma-Gun JP

Patent application numberDescriptionPublished
20100246352OPTICAL INFORMATION RECORDING MEDIUM, REPRODUCING DEVICE FOR OPTICAL INFORMATION RECORDING MEDIUM, CONTROL METHOD AND CONTROL PROGRAM FOR THE REPRODUCING DEVICE, AND MEDIUM WITH THE CONTROL PROGRAM RECORDED THEREIN - A super-resolution medium (09-30-2010
20100246353OPTICAL INFORMATION RECORDING MEDIUM, REPRODUCING DEVICE FOR OPTICAL INFORMATION RECORDING MEDIUM, CONTROL METHOD AND CONTROL PROGRAM FOR THE REPRODUCING DEVICE, AND MEDIUM WITH THE CONTROL PROGRAM RECORDED THEREIN - A super-resolution medium (09-30-2010
20100246362OPTICAL INFORMATION RECORDING MEDIUM, REPRODUCING DEVICE FOR OPTICAL INFORMATION RECORDING MEDIUM, CONTROL METHOD AND CONTROL PROGRAM FOR THE REPRODUCING DEVICE, AND MEDIUM WITH THE CONTROL PROGRAM RECORDED THEREIN - A super-resolution medium (09-30-2010
20100246373OPTICAL INFORMATION RECORDING MEDIUM, REPRODUCING DEVICE FOR OPTICAL INFORMATION RECORDING MEDIUM, CONTROL METHOD AND CONTROL PROGRAM FOR THE REPRODUCING DEVICE, AND MEDIUM WITH THE CONTROL PROGRAM RECORDED THEREIN - A super-resolution medium (09-30-2010
20100254250OPTICAL INFORMATION RECORDING MEDIUM, REPRODUCING DEVICE FOR OPTICAL INFORMATION RECORDING MEDIUM, CONTROL METHOD AND CONTROL PROGRAM FOR THE REPRODUCING DEVICE, AND MEDIUM WITH THE CONTROL PROGRAM RECORDED THEREIN - A super-resolution medium (10-07-2010

Patent applications by Hideharu Tajima, Ikoma-Gun JP

Hideharu Tajima, Nara JP

Patent application numberDescriptionPublished
20090034388Multi-Format Optical Storage Medium, Optical Pickup, and Optical Read/Write Device - There is provided a storage layer (02-05-2009
20100014407OPTICAL INFORMATION RECORDING MEDIUM, REPRODUCING DEVICE FOR OPTICAL INFORMATION RECORDING MEDIUM, AND REPRODUCING METHOD FOR OPTICAL INFORMATION RECORDING MEDIUM - In an optical information recording medium (01-21-2010
20100018639METHOD OF FORMING MICROPATTERN, METHOD OF MANUFACTURING OPTICAL RECORDING MEDIUM MASTER COPY, OPTICAL RECORDING MEDIUM MASTER COPY, OPTICAL RECORDING MEDIUM STAMPER, AND OPTICAL RECORDING MEDIUM - By using an existing, relatively inexpensive manufacturing device, micropatterns (e.g. guiding grooves, prepits) having such track pitch and pit pitch that are smaller than the diameter of a light spot are formed more finely. There are provided at least two layers, i.e. (i) a resin substrate and (ii) a depressed part inducing layer made of dielectric material or metal oxide. A light beam is radiated and focused onto the depressed part inducing layer so as to form pit parts and/or guiding grooves on irradiated parts of the resin substrate. The depressed part inducing layer is then removed, so as to expose the pit parts and/or guiding grooves.01-28-2010
20100220567Optical Information Recording Medium, Reproducing Device for Optical Information Recording Medium, Control Method and Control Program for the Reproducing Device, and Medium with the Control Program Recorded Therein - A super-resolution medium (09-02-2010

Patent applications by Hideharu Tajima, Nara JP