Patents by Inventor Hiroyuki Ohata
Hiroyuki Ohata has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 6995100Abstract: A composite sheet that comprises an elastically stretchable layer and an inelastically stretchable layer formed with inelastically stretchable continuous fibers bonded to at least one surface of the elastically stretchable layer intermittently in one direction. The continuous fibers are oriented substantially in one direction thereof so that the composite sheet may present a ratio S1/S2 of 3.0 or higher where S1 represents a tensile strength in this one direction and S2 represents a tensile strength in the direction orthogonal to this one direction.Type: GrantFiled: March 29, 2001Date of Patent: February 7, 2006Assignee: Uni-Charm CorporationInventors: Satoru Tange, Hiroyuki Ohata
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Patent number: 6930965Abstract: An optical disk physical has a recording region divided into zones, each zone including physical tracks adjacent to each other. An integer number of sectors, are provided in each physical track. The angular recording density is higher in the more outward zones such that the linear recording density is substantially constant throughout the recording region, and logical tracks are formed of a predetermined number of sectors, independent of the physical tracks. The conversion between the logical track and sector addresses read from the disk and the linear logical addresses supplied from a host device is easy. The addresses written in headers of the sectors in the logical track in which data are actually recorded, including substitute sectors used in place of defect sectors, are preferably consecutive to further facilitate the conversion between the logical track and sector addresses read from the disk and the linear logical addresses supplied from the host device.Type: GrantFiled: August 5, 2003Date of Patent: August 16, 2005Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Kyosuke Yoshimoto, Mahesh Chandra Rao, Hiroyuki Ohata, Kazuhiko Nakane, Teruo Furukawa, Junichi Kondo, Masafumi Ototake
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Publication number: 20050122867Abstract: An optical disk physical has a recording region divided into zones, each zone including physical tracks adjacent to each other. An integer number of sectors are provided in each physical track. The angular recording density is higher in the more outward zones such that the linear recording density is substantially constant throughout the recording region, and logical tracks are formed of a predetermined number of sectors, independent of the physical tracks. The conversion between the logical track and sector addresses read from the disk and the linear logical addresses supplied from a host device is easy. The addresses written in headers of the sectors in the logical track in which data are actually recorded, including substitute sectors used in place of defect sectors, are preferably consecutive to further facilitate the conversion between the logical track and sector addresses read from the disk and the linear logical addresses supplied from the host device.Type: ApplicationFiled: November 18, 2004Publication date: June 9, 2005Inventors: Kyosuke Yoshimoto, M. Rao, Hiroyuki Ohata, Kazuhiko Nakane, Teruo Furukawa, Junichi Kondo, Masafumi Ototake
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Publication number: 20050105422Abstract: An optical disk physical has a recording region divided into zones, each zone including physical tracks adjacent to each other. An integer number of sectors are provided in each physical track. The angular recording density is higher in the more outward zones such that the linear recording density is substantially constant throughout the recording region, and logical tracks are formed of a predetermined number of sectors, independent of the physical tracks. The conversion between the logical track and sector addresses read from the disk and the linear logical addresses supplied from a host device is easy. The addresses written in headers of the sectors in the logical track in which data are actually recorded, including substitute sectors used in place of defect sectors, are preferably consecutive to further facilitate the conversion between the logical track and sector addresses read from the disk and the linear logical addresses supplied from the host device.Type: ApplicationFiled: September 28, 2004Publication date: May 19, 2005Inventors: Kyosuke Yoshimoto, M. C. Rao, Hiroyuki Ohata, Kazuhiko Nakane, Teruo Furukawa, Junichi Kondo, Masafumi Ototake
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Publication number: 20050089312Abstract: In a video disk recording/playback device for converting a digital video signal or the like into high-efficiency coded data and recording the coded data on a video disk, or for restoring high-efficiency coded data recorded on the video disk and reproducing an output image, wherein said digital video signal is composed of a succession of video signals of a plurality of frames and including an I picture encoded within a frame, a P picture interframe coded by forward motion compensation with reference to said I picture and/or another P picture, and a B picture interframe coded by motion compensation in both directions with reference to said I and/or P pictures temporally preceding and succeeding the B picture, there are further provided a means for recording in an image information table set up on said video disk all of the start addresses of coded data representing selected images such as images to be retrieved and the start addresses of data containing information required for reproducing the coded data.Type: ApplicationFiled: November 23, 2004Publication date: April 28, 2005Applicant: Mitsubishi Denki Kabushiki KaishaInventors: Kouichi Shirakawa, Tadashi Kasezawa, Masato Nagasawa, Yoshihiro Kiyose, Hiroyuki Ohata, Hidetoshi Mishima, Yoshinori Asamura
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Patent number: 6853611Abstract: An optical disk physical has a recording region divided into zones, each zone including physical tracks adjacent to each other. An integer number of sectors are provided in each physical track. The angular recording density is higher in the more outward zones such that the linear recording density is substantially constant throughout the recording region, and logical tracks are formed of a predetermined number of sectors, independent of the physical tracks. The conversion between the logical track and sector addresses read from the disk and the linear logical addresses supplied from a host device is easy. The addresses written in headers of the sectors in the logical track in which data are actually recorded, including substitute sectors used in place of defect sectors, are preferably consecutive to further facilitate the conversion between the logical track and sector addresses read from the disk and the linear logical addresses supplied from the host device.Type: GrantFiled: August 5, 2003Date of Patent: February 8, 2005Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Kyosuke Yoshimoto, M. C. Rao, Hiroyuki Ohata, Kazuhiko Nakane, Teruo Furukawa, Junichi Kondo, Masafumi Ototake
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Patent number: 6834033Abstract: An optical disk physical has a recording region divided into zones, each zone including physical tracks adjacent to each other. An integer number of sectors, are provided in each physical track. The angular recording density is higher in the more outward zones such that the linear recording density is substantially constant throughout the recording region, and logical tracks are formed of a predetermined number of sectors, independent of the physical tracks. The conversion between the logical track and sector addresses read from the disk and the linear logical addresses supplied from a host device is easy. The addresses written in headers of the sectors in the logical track in which data are actually recorded, including substitute sectors used in place of defect sectors, are preferably consecutive to further facilitate the conversion between the logical track and sector addresses read from the disk and the linear logical addresses supplied from the host device.Type: GrantFiled: August 5, 2003Date of Patent: December 21, 2004Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Kyosuke Yoshimoto, M. C. Rao, Hiroyuki Ohata, Kazuhiko Nakane, Teruo Furukawa, Junichi Kondo, Masafumi Ototake
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Patent number: 6821372Abstract: An elastically stretchable composite sheet includes an elastic layer and an inelastic layer formed with stretchable fibers having a relatively small diameter and bonded to at least one surface of the elastic layer. In the inelastic layer bonded to the elastic layer is formed with thermoplastic synthetic fiber, at least 80% by weight of stretchable fibers includes thermoplastic synthetic fiber containing lubricant of 0.1˜5.0% by weight.Type: GrantFiled: November 12, 2002Date of Patent: November 23, 2004Assignee: Uni-Charm CorporationInventor: Hiroyuki Ohata
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Patent number: 6775220Abstract: An optical disk physical has a recording region divided into zones, each zone including physical tracks adjacent to each other. An integer number of sectors, are provided in each physical track. The angular recording density is higher in the more outward zones such that the linear recording density is substantially constant throughout the recording region, and logical tracks are formed of a predetermined number of sectors, independent of the physical tracks. The conversion between the logical track and sector addresses read from the disk and the linear logical addresses supplied from a host device is easy. The addresses written in headers of the sectors in the logical track in which data are actually recorded, including substitute sectors used in place of defect sectors, are preferably consecutive to further facilitate the conversion between the logical track and sector addresses read from the disk and the linear logical addresses supplied from the host device.Type: GrantFiled: August 27, 2002Date of Patent: August 10, 2004Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Kyosuke Yoshimoto, M. C. Rao, Hiroyuki Ohata, Kazuhiko Nakane, Teruo Furukawa, Junichi Kondo, Masafumi Ototake
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Patent number: 6738341Abstract: In order to enable recording and reproduction from optical disks with defect management formatted with different group configurations without changing the firmware of the conventional apparatus and to allow the size of the spare area to be specified at initialization, the position information indicating the position of the defect management area is recorded in the control data area provided in the read-only area of the optical disk, and the information indicating the first address or size of the spare area is included in the defect management area.Type: GrantFiled: June 20, 2002Date of Patent: May 18, 2004Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Hiroyuki Ohata, Kazuhiko Nakane
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Publication number: 20040027955Abstract: An optical disk physical has a recording region divided into zones, each zone including physical tracks adjacent to each other. An integer number of sectors are provided in each physical track. The angular recording density is higher in the more outward zones such that the linear recording density is substantially constant throughout the recording region, and logical tracks are formed of a predetermined number of sectors, independent of the physical tracks. The conversion between the logical track and sector addresses read from the disk and the linear logical addresses supplied from a host device is easy. The addresses written in headers of the sectors in the logical track in which data are actually recorded, including substitute sectors used in place of defect sectors, are preferably consecutive to further facilitate the conversion between the logical track and sector addresses read from the disk and the linear logical addresses supplied from the host device.Type: ApplicationFiled: August 5, 2003Publication date: February 12, 2004Applicant: Mitsubishi Denki Kabushiki KaishaInventors: Kyosuke Yoshimoto, M. C. Rao, Hiroyuki Ohata, Kazuhiko Nakane, Teruo Furukawa, Junichi Kondo, Masafumi Ototake
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Publication number: 20040027946Abstract: An optical disk physical has a recording region divided into zones, each zone including physical tracks adjacent to each other. An integer number of sectors are provided in each physical track. The angular recording density is higher in the more outward zones such that the linear recording density is substantially constant throughout the recording region, and logical tracks are formed of a predetermined number of sectors, independent of the physical tracks. The conversion between the logical track and sector addresses read from the disk and the linear logical addresses supplied from a host device is easy. The addresses written in headers of the sectors in the logical track in which data are actually recorded, including substitute sectors used in place of defect sectors, are preferably consecutive to further facilitate the conversion between the logical track and sector addresses read from the disk and the linear logical addresses supplied from the host device.Type: ApplicationFiled: August 5, 2003Publication date: February 12, 2004Applicant: Mitsubishi Denki Kabushiki KaishaInventors: Kyosuke Yoshimoto, M. C. Rao, Hiroyuki Ohata, Kazuhiko Nakana, Teruo Furukawa, Junichi Kondo, Masafumi Ototake
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Publication number: 20040027952Abstract: An optical disk physical has a recording region divided into zones, each zone including physical tracks adjacent to each other. An integer number of sectors, are provided in each physical track. The angular recording density is higher in the more outward zones such that the linear recording density is substantially constant throughout the recording region, and logical tracks are formed of a predetermined number of sectors, independent of the physical tracks. The conversion between the logical track and sector addresses read from the disk and the linear logical addresses supplied from a host device is easy. The addresses written in headers of the sectors in the logical track in which data are actually recorded, including substitute sectors used in place of defect sectors, are preferably consecutive to further facilitate the conversion between the logical track and sector addresses read from the disk and the linear logical addresses supplied from the host device.Type: ApplicationFiled: August 5, 2003Publication date: February 12, 2004Applicant: Mitsubishi Denki Kabushiki KaishaInventors: Kyosuke Yoshimoto, M.C. Rao, Hiroyuki Ohata, Kazuhiko Nakane, Teruo Furukawa, Junichi Kondo, Masafumi Ototake
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Patent number: 6649546Abstract: An elastically stretchable composite sheet that includes an elastic layer and an inelastic layer formed with stretchable fibers having a relatively small diameter and bonded to at least one surface of the elastic layer. In the inelastic layer bonded to the elastic layer is formed with thermoplastic synthetic fiber, at least 80% by weight of stretchable fibers includes thermoplastic synthetic fiber containing lubricant of 0.1˜5.0% by weight.Type: GrantFiled: March 20, 2001Date of Patent: November 18, 2003Assignee: Uni-Charm CorporationInventor: Hiroyuki Ohata
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Patent number: 6633525Abstract: An optical disk has a recording region divided into zones, each zone including physical tracks which are divided into a number of sectors. The optical disk further includes a structure management table which stores an attribute for each zone indicating whether the corresponding zone is a recording area which permits rewriting of a recording area that does not permit rewriting.Type: GrantFiled: June 20, 2002Date of Patent: October 14, 2003Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Kyosuke Yoshimoto, M. C. Rao, Hiroyuki Ohata, Kazuhiko Nakane, Teruo Furukawa, Junichi Kondo, Masafumi Ototake
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Patent number: 6621782Abstract: When optical disk defects are managed by using non-defective areas in place of defective areas, different criteria are used for detecting the defects, depending on the type of data recorded on the disk. For example, to avoid interruptions of real-time recording, less strict criteria are used when audio or video data is recorded than when computer data is recorded. The criteria themselves may also be recorded on the disk.Type: GrantFiled: August 5, 1999Date of Patent: September 16, 2003Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Kazuhiko Nakane, Hiroyuki Ohata
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Patent number: 6613260Abstract: A composite web including an elastically stretchable web and an inelastically stretchable web bonded together is stretched on a course defined between at least two nip roll pairs to obtain an elastically stretchable composite sheet. The composite web is brought into contact with a peripheral surface of at least one roll of each nip roll pair over an area of the peripheral surface defined by a quadrant of this roll's circular cross section.Type: GrantFiled: March 22, 2001Date of Patent: September 2, 2003Assignee: Uni-Charm CorporationInventors: Toshio Kobayashi, Hiroyuki Ohata, Masaki Yoshida
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Publication number: 20030070744Abstract: This invention aims to provide a composite sheet having a layer of inelastically stretchable continuous fibers improved so that a possible unevenness in fiber diameter may be minimized.Type: ApplicationFiled: November 12, 2002Publication date: April 17, 2003Inventors: Satoru Tange, Hiroyuki Ohata
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Publication number: 20030068489Abstract: An elastically stretchable composite sheet includes an elastic layer and an inelastic layer formed with stretchable fibers having a relatively small diameter and bonded to at least one surface of the elastic layer. In the inelastic layer bonded to the elastic layer is formed with thermoplastic synthetic fiber, at least 80% by weight of stretchable fibers includes thermoplastic synthetic fiber containing lubricant of 0.1˜5.0% by weight.Type: ApplicationFiled: November 12, 2002Publication date: April 10, 2003Inventor: Hiroyuki Ohata
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Patent number: 6539164Abstract: In a video disk recording/playback device for converting a digital video signal or the like into high-efficiency coded data and recording the coded data on a video disk, or for restoring high-efficiency coded data recorded on the video disk and reproducing an output image, wherein said digital video signal is composed of a succession of video signals of a plurality of frames and including an I picture encoded within a frame, a P picture interframe coded by forward motion compensation with reference to said I picture and/or another P picture, and a B picture interframe coded by motion compensation in both directions with reference to said I and/or P pictures temporally preceding and succeeding the B picture, there are further provided a means for recording in an image information table set up on said video disk all of the start addresses of coded data representing selected images such as images to be retrieved and the start addresses of data containing information required for reproducing the coded data.Type: GrantFiled: June 8, 1999Date of Patent: March 25, 2003Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Kouichi Shirakawa, Tadashi Kasezawa, Masato Nagasawa, Yoshihiro Kiyose, Hiroyuki Ohata, Hidetoshi Mishima, Yoshinori Asamura