Patents by Inventor Takuya Ono
Takuya Ono 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: 8174870Abstract: A magnetic recording element is disclosed for which current density required for writing is low and structure of the element is simple. It comprises a ferromagnetic fine wire formed on a Si substrate, current electrodes that contact ends of the ferromagnetic fine wire, and voltage electrodes joined to the ferromagnetic fine wire and current electrodes to measure voltage across part of the ferromagnetic fine wire in cooperation with the current electrodes. A magnetic domain wall is induced in the ferromagnetic fine wire when the element is manufactured. A depression is formed in the surface on top of the ferromagnetic fine wire between the voltage electrodes, and between one of the current electrodes and one of the voltage electrodes. Voltage is measured between the two voltage electrodes when reading current is applied, to determine whether the magnetic domain wall is present between the two voltage electrodes, whereby recorded data can be identified.Type: GrantFiled: September 11, 2009Date of Patent: May 8, 2012Assignee: Fuji Electric Co., Ltd.Inventor: Takuya Ono
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METHOD AND SYSTEM FOR DISTRIBUTING MULTIPLE STORAGE DEVICES TO MULTIPLE TIERS IN A STORAGE APPARATUS
Publication number: 20120079193Abstract: A management system of a storage apparatus, which exercises control so as to arrange data in a storage device of a certain tier of multiple tiers, carries out a first tier definition process (a process for distributing multiple storage devices to multiple tiers based on respective storage device types of the multiple storage devices and type/tier information that denotes the corresponding relationship between multiple storage device types and multiple tiers). Subsequent to the first tier definition process, the management system acquires performance information denoting the performance of a storage device for each of the multiple storage devices. The management system carries out a second tier definition process (a process for distributing the multiple storage devices to the multiple tiers based on the performance information of multiple storage devices such that two or more storage devices of similar performance are distributed to the same tier).Type: ApplicationFiled: September 24, 2010Publication date: March 29, 2012Inventors: Hirohito Sue, Nobuyoshi Sakai, Takuya Ono -
Publication number: 20120008382Abstract: A magnetic recording element is disclosed for which current density required for writing is low and structure of the element is simple. It comprises a ferromagnetic fine wire formed on a Si substrate, current electrodes that contact ends of the ferromagnetic fine wire, and voltage electrodes joined to the ferromagnetic fine wire and current electrodes to measure voltage across part of the ferromagnetic fine wire in cooperation with the current electrodes. A magnetic domain wall is induced in the ferromagnetic fine wire when the element is manufactured. A depression is formed in the surface on top of the ferromagnetic fine wire between the voltage electrodes, and between one of the current electrodes and one of the voltage electrodes. Voltage is measured between the two voltage electrodes when reading current is applied, to determine whether the magnetic domain wall is present between the two voltage electrodes, whereby recorded data can be identified.Type: ApplicationFiled: September 19, 2011Publication date: January 12, 2012Applicant: FUJI ELECTRIC CO., LTD.Inventor: Takuya ONO
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Publication number: 20110187756Abstract: Provided is a drive control apparatus for an electrophoretic display unit which performs drive control on the electrophoretic display unit. If a writing request of a new display image to be displayed on the electrophoretic display unit is detected, before a voltage of a pixel electrode for each pixel, and a common electrode is controlled to have a voltage corresponding to the new display image, a display change preprocessing portion controls the pixel electrode and the common electrode for the pixel displaying the black color to have an equal potential.Type: ApplicationFiled: January 20, 2011Publication date: August 4, 2011Applicant: SEIKO EPSON CORPORATIONInventor: Takuya ONO
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Publication number: 20110163400Abstract: In a tunnel junction element having a ferromagnetic free layer, an insulating layer and a ferromagnetic fixed layer, in order to reduce the current necessary for spin-transfer magnetization reversal operation in the tunnel junction element, the ferromagnetic free layer comprises first and second ferromagnetic layers, a nonmagnetic metal layer is provided between these ferromagnetic layers, the nonmagnetic metal layer is such that magnetic coupling is preserved between the first and second ferromagnetic layers, also such that there is no influence on the crystal growth of the first and second ferromagnetic layers, the first ferromagnetic layer and the second ferromagnetic layer are placed such that the first ferromagnetic layer is in contact with the insulating layer, and the second ferromagnetic layer has a smaller magnetization than the first ferromagnetic layer.Type: ApplicationFiled: August 28, 2008Publication date: July 7, 2011Applicant: FUJI ELECTRIC HOLDINGS CO., LTD.Inventor: Takuya Ono
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Publication number: 20100027323Abstract: A magnetic recording element is disclosed for which current density required for writing is low and structure of the element is simple. It comprises a ferromagnetic fine wire formed on a Si substrate, current electrodes that contact ends of the ferromagnetic fine wire, and voltage electrodes joined to the ferromagnetic fine wire and current electrodes to measure voltage across part of the ferromagnetic fine wire in cooperation with the current electrodes. A magnetic domain wall is induced in the ferromagnetic fine wire when the element is manufactured. A depression is formed in the surface on top of the ferromagnetic fine wire between the voltage electrodes, and between one of the current electrodes and one of the voltage electrodes. Voltage is measured between the two voltage electrodes when reading current is applied, to determine whether the magnetic domain wall is present between the two voltage electrodes, whereby recorded data can be identified.Type: ApplicationFiled: September 11, 2009Publication date: February 4, 2010Applicant: FUJI ELECTRIC DEVICE TECHNOLOGY CO., LTD.Inventor: Takuya ONO
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Patent number: 7626856Abstract: A magnetic recording element is disclosed for which current density required for writing is low and structure of the element is simple. It comprises a ferromagnetic fine wire formed on a Si substrate, current electrodes that contact ends of the ferromagnetic fine wire, and voltage electrodes joined to the ferromagnetic fine wire and current electrodes to measure voltage across part of the ferromagnetic fine wire in cooperation with the current electrodes. A magnetic domain wall is induced in the ferromagnetic fine wire when the element is manufactured. A depression is formed in the surface on top of the ferromagnetic fine wire between the voltage electrodes, and between one of the current electrodes and one of the voltage electrodes. Voltage is measured between the two voltage electrodes when reading current is applied, to determine whether the magnetic domain wall is present between the two voltage electrodes, whereby recorded data can be identified.Type: GrantFiled: March 7, 2007Date of Patent: December 1, 2009Assignee: Fuji Electric Device Technology Co., Ltd.Inventor: Takuya Ono
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Patent number: 7468169Abstract: This invention provides a production process, which can stably produce high-quality satin white (calcium trisulfoaluminate) having very small and homogeneous particulate shapes suitable for incorporation into coated paper for printing, and an apparatus for use in said process. In this process for producing calcium trisulfoaluminate, a calcium hydroxide suspension (A) is reacted with an aqueous aluminum sulfate solution (B) to produce calcium trisulfoaluminate (C). The aqueous aluminum sulfate solution (B) is added in plurality of stages to the calcium hydroxide suspension (A). At least any one stage of the plurality of stages addition, addition of the aqueous aluminum sulfate solution (B) to the calcium hydroxide suspension (A) is carried out in such a manner that the aqueous aluminum sulfate solution (B) is continuously added to the calcium hydroxide suspension (A) being continuously transferred.Type: GrantFiled: February 2, 2007Date of Patent: December 23, 2008Assignee: OJI Paper Co., Ltd.Inventors: Takayuki Kishida, Yuichi Ogawa, Yoshiki Kojima, Takuya Ono, Kenichi Mitsui, Tetsuya Hirabayashi, Masaki Nakano
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Publication number: 20070217256Abstract: A magnetic recording element is disclosed for which current density required for writing is low and structure of the element is simple. It comprises a ferromagnetic fine wire formed on a Si substrate, current electrodes that contact ends of the ferromagnetic fine wire, and voltage electrodes joined to the ferromagnetic fine wire and current electrodes to measure voltage across part of the ferromagnetic fine wire in cooperation with the current electrodes. A magnetic domain wall is induced in the ferromagnetic fine wire when the element is manufactured. A depression is formed in the surface on top of the ferromagnetic fine wire between the voltage electrodes, and between one of the current electrodes and one of the voltage electrodes. Voltage is measured between the two voltage electrodes when reading current is applied, to determine whether the magnetic domain wall is present between the two voltage electrodes, whereby recorded data can be identified.Type: ApplicationFiled: March 7, 2007Publication date: September 20, 2007Applicant: FUJI ELECTRIC DEVICE TECHNOLOGY CO., LTDInventor: Takuya ONO
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Publication number: 20070196264Abstract: This invention provides a production process, which can stably produce high-quality satin white (calcium trisulfoaluminate) having very small and homogeneous particulate shapes suitable for incorporation into coated paper for printing, and an apparatus for use in said process. In this process for producing calcium trisulfoaluminate, a calcium hydroxide suspension (A) is reacted with an aqueous aluminum sulfate solution (B) to produce calcium trisulfoaluminate (C). The aqueous aluminum sulfate solution (B) is added in plurality of stages to the calcium hydroxide suspension (A). At least any one stage of the plurality of stages addition, addition of the aqueous aluminum sulfate solution (B) to the calcium hydroxide suspension (A) is carried out in such a manner that the aqueous aluminum sulfate solution (B) is continuously added to the calcium hydroxide suspension (A) being continuously transferred.Type: ApplicationFiled: February 2, 2007Publication date: August 23, 2007Inventors: Takayuki Kishida, Yuichi Ogawa, Yoshiki Kojima, Takuya Ono, Kenichi Mitsui, Tetsuya Hirabayashi, Masaki Nakano
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Patent number: 7070732Abstract: An oxide magnetic material comprising main constituents including Fe2O3, ZnO, CuO and NiO. Y2O3 of 0.003 to 0.021 wt % and-ZrO2 of 0.06 to 0.37 wt % are included in main constituents with respect to all amounts. It is also preferable that Si of 0.010 to 0.0112 wt % is included in main constituents with respect to all amounts. Further, it is also preferable that Y2O3 of 0.001 to 0.011 wt % , ZrO2 of 0.031 to 0.194 wt %, and Si of 0.010 to 0.056 wt % are included in main constituents with respect to all amounts.Type: GrantFiled: September 11, 2002Date of Patent: July 4, 2006Assignee: TDK CorporationInventors: Ko Ito, Yukio Takahashi, Takuya Ono, Hiroshi Harada
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Patent number: 7016132Abstract: A magnetic data embedding system (or disk servo writer) includes a stack with a master disk (3) and a plurality of magnetic disks (4) mounted on a shaft of a spindle motor (6), and a rotary positioner (11) which integrally holds one or more read-only heads (71 to 74) for reading the master disk and a plurality of groups of servo heads (101 to 104) and which simultaneously turns both of the kinds of heads. The groups of servo heads have access to the top and bottom sides of the magnetic disks. The servo heads are made carry out writing to the same (top or bottom) side of each of the disks in parallel, within assigned track ranges for the respective servo heads.Type: GrantFiled: January 27, 2004Date of Patent: March 21, 2006Assignee: Fuji Electric Device Technology Co., Ltd.Inventors: Kiminori Sato, Akira Saito, Hiroyuki Yoshimura, Takuya Ono, Tsuyoshi Yoshizawa
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Patent number: 6934112Abstract: A method for obtaining relative positional relationships between a read-only head for reading data from an original disk and servo heads on each surface of magnetic disks (copy disks), in a magnetic data writing apparatus (disk servo writer) that stacks copy disks and an original disk to rotate the disks unitarily. The apparatus includes a rotary positioner on the periphery of the copy disks and a read-only disk, stacking the read-only head and servo heads rotatably. The apparatus causes the servo heads simultaneously to write servo data to respective assigned track ranges. The method includes stacking calibration disks storing servo data in place of the copy disks in a coaxial relation with the read-only head, in advance of writing magnetic data to the copy disks.Type: GrantFiled: March 2, 2004Date of Patent: August 23, 2005Assignee: Fuji Electric Device Technology Co. Ltd.Inventors: Takuya Ono, Kiminori Sato
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Publication number: 20050073762Abstract: A magnetic data embedding system (or disk servo writer) includes a stack with a master disk (3) and a plurality of magnetic disks (4) mounted on a shaft of a spindle motor (6), and a rotary positioner (11) which integrally holds one or more read-only heads (71 to 74) for reading the master disk and a plurality of groups of servo heads (101 to 104) and which simultaneously turns both of the kinds of heads. The groups of servo heads have access to the top and bottom sides of the magnetic disks. The servo heads are made carry out writing to the same (top or bottom) side of each of the disks in parallel, within assigned track ranges for the respective servo heads.Type: ApplicationFiled: January 27, 2004Publication date: April 7, 2005Inventors: Kiminori Sato, Akira Saito, Hiroyuki Yoshimura, Takuya Ono, Tsuyoshi Yoshizawa
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Publication number: 20040228025Abstract: A method for obtaining relative positional relationships between a read-only head for reading data from an original disk and servo heads on each surface of magnetic disks (copy disks), in a magnetic data writing apparatus (disk servo writer) that stacks copy disks and an original disk to rotate the disks unitarily. The apparatus includes a rotary positioner on the periphery of the copy disks and a read-only disk, stacking the read-only head and servo heads rotatably. The apparatus causes the servo heads simultaneously to write servo data to respective assigned track ranges. The method includes stacking calibration disks storing servo data in place of the copy disks in a coaxial relation with the read-only head, in advance of writing magnetic data to the copy disks.Type: ApplicationFiled: March 2, 2004Publication date: November 18, 2004Inventors: Takuya Ono, Kiminori Sato
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Publication number: 20040076789Abstract: A magnetic recording medium embeds contents management information for managing utilization forms of the contents to prevent illegal access while allowing various forms of contents. The recording medium has a region for embedding its track ID. A pattern corresponding to copy or period management information, which is a type of contents management information, as well as a pattern corresponding to track ID that is a code unique to each track can be embedded in the region. The pattern of contents management information can be included at every track by classification using a Gray code, for example.Type: ApplicationFiled: July 17, 2003Publication date: April 22, 2004Inventors: Takuya Ono, Kiminori Sato
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Publication number: 20030122288Abstract: An oxide magnetic material comprising main constituents including Fe2O3, ZnO, CuO and NiO. Y2O3 of 0.003 to 0.021 wt % and-ZrO2 of 0.06 to 0.37 wt % are included in said main constituents with respect to all amounts. It is also preferable that Si of 0.010 to 0.0112 wt % is included in said main constituents with respect to all amounts. Further, it is also preferable that Y2O3of 0.001 to 0.011 wt % , ZrO2 of 0.031 to 0.194 wt %, and Si of 0.010 to 0.056 wt % are included in said main constituents with respect to all amounts.Type: ApplicationFiled: September 11, 2002Publication date: July 3, 2003Applicant: TDK CORPORATIONInventors: Ko Ito, Yukio Takahashi, Takuya Ono, Hiroshi Harada
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Patent number: 6558566Abstract: Ni—Cu—Zn based oxide magnetic materials, in that not only the internal conductor is stabilized at very low firing temperatures, but also the characteristics in the high frequency zones of 100 MHz or higher are excellent. The oxide magnetic materials comprises, Fe2O3: 35.0 to 51.0 mol %, CuO: 1.0 to 35 mol %, NiO: 38.0 to 64.0 mol %, ZnO: 0 to 10.0 mol % (including 0%) and Ca: 0.3 wt % or lower (not including 0%), and, optionally, CoO: 0.7 wt % or lower.Type: GrantFiled: March 12, 2001Date of Patent: May 6, 2003Assignee: TDK CorporationInventors: Takuya Ono, Ko Ito
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Patent number: 6485840Abstract: An oxide magnetic material comprising main constituents including Fe2O3, ZnO, CuO and NiO. Y2O3 of 0.003 to 0.021 wt % and ZrO2 of 0.06 to 0.37 wt % are included in said main constituents with respect to all amounts. It is also preferable that Si of 0.010 to 0.0112 wt % is included in said main constituents with respect to all amounts. Further, it is also preferable that Y2O3 of 0.001 to 0.011 wt %, ZrO2 of 0.031 to 0.194 wt %, and Si of 0.010 to 0.056 wt % are included in said main constituents with respect to all amounts.Type: GrantFiled: August 18, 2000Date of Patent: November 26, 2002Assignee: TDK CorporationInventors: Ko Ito, Yukio Takahashi, Takuya Ono, Hiroshi Harada
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Publication number: 20010028051Abstract: Ni—Cu—Zn based oxide magnetic materials, in that not only the internal conductor is stabilized at very low firing temperatures, but also the characteristics in the high frequency zones of 100 MHz or higher are excellent. The oxide magnetic materials composing, Fe2O3: 35.0 to 51.0 mol %, CuO: 1.0 to 35 mol %, NiO: 38.0 to 64.0 mol %, and ZnO: 0 to 10.0 mol % (including 0%).Type: ApplicationFiled: March 12, 2001Publication date: October 11, 2001Applicant: TDK CORPORATIONInventors: Takuya Ono, Ko Ito