Patents by Inventor Shinya Aoki
Shinya Aoki 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: 8269205Abstract: According to one embodiment, an information recording and reproducing device includes a first layer, a second layer and a recording layer. The recording layer is provided between the first layer and the second layer and being capable of reversibly changing between a first state having a first resistance and a second state having a second resistance higher than the first resistance. The recording layer includes a first compound layer and a second compound layer. The first compound layer contains a first compound. The first compound includes a first cation element and a second cation element of a type different from the first cation element. The second compound layer contains a second compound. The second compound includes a transition element having a d-orbital partially filled with electron, and the second compound includes a void site capable of storing at least one of the first cation element and the second cation element.Type: GrantFiled: September 20, 2010Date of Patent: September 18, 2012Assignee: Kabushiki Kaisha ToshibaInventors: Kohichi Kubo, Chikayoshi Kamata, Takayuki Tsukamoto, Shinya Aoki, Takahiro Hirai, Tsukasa Nakai, Toshiro Hiraoka
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Publication number: 20120225012Abstract: The composition for hard tissue repair of the present invention is characterized by comprising 5 to 98.95 parts by weight of a monomer (A), 1 to 75 parts by weight of a (meth)acrylate polymer (B) and 0.05 to 20 parts by weight of a polymerization initiator composition (C) containing an organoboron compound (c1), with the proviso that the total amount of the components (A), (B) and (C) is 100 parts by weight. The composition undergoes small-scale heat generation during curing and can ensure a sufficient working time.Type: ApplicationFiled: November 18, 2010Publication date: September 6, 2012Applicant: MITSUI CHEMICALS, INC.Inventors: Noriaki Asada, Shinya Aoki, Hiroshi Naruse, Shoichi Miyakoshi, Masami Arata
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Publication number: 20120219544Abstract: The adhesive composition for soft tissues, the adhesive composition for wound dressing or the wound dressing agent composition of the present invention is an adhesive composition for soft tissues, an adhesive composition for wound dressing or a wound dressing agent composition, comprising a monomer (A), a polymer (B) and a polymerization initiator composition (C) containing an organoboron compound, and is characterized by having a viscosity of 0.4 to 75,000 cp within 30 seconds after mixing of the components (A), (B) and (C). The composition of the present invention not only has low toxicity, low harmfulness and high adhesive strength but also is excellent in workability during application and is capable of forming films of excellent properties.Type: ApplicationFiled: November 18, 2010Publication date: August 30, 2012Applicant: MITSUI CHEMICALS, INC.Inventors: Noriaki Asada, Shinya Aoki, Hiroshi Naruse, Shoichi Miyakoshi, Masami Arata
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Patent number: 8237145Abstract: According to one embodiment, a nonvolatile memory device includes a stacked body including a first layer, a second layer and a recording layer. The recording layer is provided between the first layer and the second layer. The recording layer is capable of reversibly changing between a first state and a second state having a resistance higher than a resistance in the first state by a current supplied via the first layer and the second layer. The recording layer includes a first portion and a second portion provided in a plane of a major surface of the recording layer. The second portion has a nitrogen amount higher than a nitrogen amount in the first portion.Type: GrantFiled: August 18, 2010Date of Patent: August 7, 2012Assignee: Kabushiki Kaisha ToshibaInventors: Chikayoshi Kamata, Takayuki Tsukamoto, Kohichi Kubo, Shinya Aoki, Takahiro Hirai, Toshiro Hiraoka
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Patent number: 8207518Abstract: According to one embodiment, an information recording and reproducing device includes a first layer, a second layer and a recording layer. The recording layer is provided between the first layer and the second layer and being capable of reversibly changing between a first state having a first resistance and a second state having a second resistance higher than the first resistance by a current supplied via the first layer and the second layer. The recording layer includes a first compound layer and an insulating layer. The first compound layer contains a first compound. The first compound includes a first cation element and a second cation element of a type different from the first cation element. The insulating layer contains a third compound, and the third compound includes an element selected from group 1 to 4 elements and group 12 to 17 elements in the periodic table.Type: GrantFiled: September 20, 2010Date of Patent: June 26, 2012Assignee: Kabushiki Kaisha ToshibaInventors: Kohichi Kubo, Chikayoshi Kamata, Takayuki Tsukamoto, Shinya Aoki, Takahiro Hirai, Tsukasa Nakai, Toshiro Hiraoka
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Patent number: 8188455Abstract: An information recording/reproducing device includes a recording layer, and a recording circuit which records data to the recording layer by generating a phase change in the recording layer. The recording layer includes a first chemical compound having a spinel structure. The recording layer is AxMyX4 (0.1?x?2.2, 1.0?y?2.0), where A includes one selected from a group of Zn, Cd and Hg, M includes one selected from a group of Ti, Zr, Hf, V, Nb and Ta, and X includes O.Type: GrantFiled: December 11, 2009Date of Patent: May 29, 2012Assignee: Kabushiki Kaisha ToshibaInventors: Takayuki Tsukamoto, Kohichi Kubo, Chikayoshi Kamata, Takahiro Hirai, Shinya Aoki, Toshiro Hiraoka
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Patent number: 8139398Abstract: A data read/write device according to an example of the present invention includes a recording layer, and means for applying a voltage to the recording layer, generating a resistance change in the recording layer, and recording data. The recording layer is composed of a composite compound having at least two types of cation elements, at least one type of the cation element is a transition element having a “d” orbit in which electrons have been incompletely filled, and the shortest distance between the adjacent cation elements is 0.32 nm or less.Type: GrantFiled: March 21, 2011Date of Patent: March 20, 2012Assignee: Kabushiki Kaisha ToshibaInventors: Koichi Kubo, Takahiro Hirai, Shinya Aoki, Robin Carter, Chikayoshi Kamata
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Publication number: 20120061732Abstract: According to one embodiment, an information recording/reproducing device including a semiconductor substrate, a first interconnect layer on the semiconductor substrate, a first memory cell array layer on the first interconnect layer, and a second interconnect layer on the first memory cell array layer. The first memory cell array layer comprises an insulating layer having an alignment mark, and a stacked layer structure on the insulating layer and including a storage layer and an electrode layer. All of the layers in the stacked layer structure comprises a material with a permeability of visible light of 1% or more.Type: ApplicationFiled: September 9, 2011Publication date: March 15, 2012Inventors: Takahiro HIRAI, Tsukasa NAKAI, Kohichi KUBO, Chikayoshi KAMATA, Takayuki TSUKAMOTO, Shinya AOKI
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Publication number: 20120012807Abstract: A semiconductor memory device in an embodiment comprises memory cells, each of the memory cells disposed between a first line and a second line and having a variable resistance element and a switching element connected in series. The variable resistance element includes a variable resistance layer configured to change in resistance value thereof between a low-resistance state and a high-resistance state. The variable resistance layer is configured by a transition metal oxide. A ratio of transition metal and oxygen configuring the transition metal oxide varies between 1:1 and 1:2 along a first direction directed from the first line to the second line.Type: ApplicationFiled: July 13, 2011Publication date: January 19, 2012Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Takeshi YAMAGUCHI, Hirofumi Inoue, Reika Ichihara, Takayuki Tsukamoto, Takashi Shigeoka, Katsuyuki Sekine, Shinya Aoki
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Patent number: 8089796Abstract: According to one embodiment, an information recording and reproducing device includes a first layer, a second layer and a recording layer. The recording layer is provided between the first and second layers and is capable of reversibly transitioning between a first state and a second state with a resistance higher than in the first state. One of the first and second layers includes a resistivity distribution layer perpendicular to a stacking direction of the first and second layers, and the recording layer. The resistivity distribution layer includes a low and a high resistivity portion. Resistivity of the high resistivity portion is higher than resistivity of the low resistivity portion. The low resistivity portion contains a transition element identical to a transition element contained in the high resistivity portion.Type: GrantFiled: September 20, 2010Date of Patent: January 3, 2012Assignee: Kabushiki Kaisha ToshibaInventors: Takayuki Tsukamoto, Takeshi Yamaguchi, Chikayoshi Kamata, Tsukasa Nakai, Takahiro Hirai, Shinya Aoki, Kohichi Kubo
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Patent number: 8050171Abstract: An information recording/reproducing device according to an example of the present invention includes a first head and a second head each having a conductive region formed of a conductive material, a recording medium having a data area from which data is read by the first head, and a servo burst area from which a servo burst signal is read by the second head, a driver for positioning the first head and the recording medium based on the servo burst signal, and a resistance element for covering a surface of the conductive region of the second head.Type: GrantFiled: March 19, 2008Date of Patent: November 1, 2011Assignee: Kabushiki Kaisha ToshibaInventors: Shinya Aoki, Koichi Kubo, Junichi Ito, Junichi Akiyama
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Patent number: 8018762Abstract: An information recording and reproducing apparatus, includes: a stacked structure including an electrode layer and a recording layer; a buffer layer added to the electrode layer; and a voltage application unit configured to apply a voltage to the recording layer, produce a phase change in the recording layer, and record information. The recording layer includes a first layer including a first compound having an ilmenite structure represented by AxMyX3 (0.1?x?1.1 and 0.Type: GrantFiled: December 11, 2009Date of Patent: September 13, 2011Assignee: Kabushiki Kaisha ToshibaInventors: Kohichi Kubo, Chikayoshi Kamata, Takayuki Tsukamoto, Shinya Aoki, Takahiro Hirai, Toshiro Hiraoka
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Publication number: 20110216576Abstract: According to one embodiment, an information recording/reproducing device includes a recording layer and a driver section. The recording layer has a first layer including a first compound. The first compound includes a mixed crystal of a first oxide containing a first metallic element and a second oxide. The second oxide has a crystal structure being same as the first oxide and contains a second metallic element different from the first metallic element. The driver section is configured to produce state change in the recording layer to record information by at least one of application of voltage to the recording layer and passage of current to the recording layer. Composition ratio of an element having a smaller ionic radius of the first and second metallic elements is not less than percolation threshold of a lattice formed of ions of the first and second metallic elements based on the crystal structure.Type: ApplicationFiled: March 9, 2011Publication date: September 8, 2011Applicant: Kabushiki Kaisha ToshibaInventors: Shinya Aoki, Kohichi Kubo, Takayuki Tsukamoto, Takahiro Hirai, Chikayoshi Kamata, Tsukasa Nakai
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Patent number: 8014189Abstract: An information recording/reproducing device includes a recording layer, and a recording circuit which records data to the recording layer by generating a phase change in the recording layer. The recording layer includes a first chemical compound having a spinel structure. The recording layer is AxMyX4 (0.1?x?2.2, 1.0?y?2.0), where A includes one selected from a group of Zn, Cd and Hg, M includes one selected from a group of Cr, Mo, W, Mn and Re, and X includes O.Type: GrantFiled: December 11, 2009Date of Patent: September 6, 2011Assignee: Kabushiki Kaisha ToshibaInventors: Takayuki Tsukamoto, Kohichi Kubo, Chikayoshi Kamata, Takahiro Hirai, Shinya Aoki, Toshiro Hiraoka
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Patent number: 7995382Abstract: An information recording and reproducing apparatus, includes: a recording layer including a first layer including a first compound, the first compound being a conjugated compound including at least two types of cation elements, at least one selected from the cation elements being a transition element having a d orbit incompletely filled by electrons, a shortest distance between adjacent cation elements being not more than 0.32 nm; a voltage application unit that applies a voltage to the recording layer, produces a phase change in the recording layer, and records information; an electrode layer that applies a voltage to the recording layer; and an orientation control layer provided between the recording layer and the electrode layer to control an orientation of the recording layer.Type: GrantFiled: December 11, 2009Date of Patent: August 9, 2011Assignee: Kabushiki Kaisha ToshibaInventors: Takayuki Tsukamoto, Kohichi Kubo, Chikayoshi Kamata, Takahiro Hirai, Shinya Aoki, Toshiro Hiraoka
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Publication number: 20110170333Abstract: A data read/write device according to an example of the present invention includes a recording layer, and means for applying a voltage to the recording layer, generating a resistance change in the recording layer, and recording data. The recording layer is composed of a composite compound having at least two types of cation elements, at least one type of the cation element is a transition element having a “d” orbit in which electrons have been incompletely filled, and the shortest distance between the adjacent cation elements is 0.32 nm or less.Type: ApplicationFiled: March 21, 2011Publication date: July 14, 2011Inventors: Koichi KUBO, Takahiro Hirai, Shinya Aoki, Robin Carter, Chikayoshi Kamata
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Patent number: 7961586Abstract: An information recording/reproducing device according to an example of the present invention includes first and second heads, a recording medium having a data area from which recording data is read by the first head and a servo burst area from which a servo burst signal is read by the second head, a driver which performs positioning of the second head based on the servo burst signal, and a resistor which covers a surface of the servo burst area and does not cover a surface of the data area. The recording data and the servo burst signal are recorded by a pulse signal.Type: GrantFiled: August 24, 2007Date of Patent: June 14, 2011Assignee: Kabushiki Kaisha ToshibaInventors: Kohichi Kubo, Takahiro Hirai, Shinya Aoki, Akihiro Koga, Junichi Akiyama, Shinji Takakura, Hiroaki Nakamura
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Patent number: 7936587Abstract: A data read/write device according to an example of the present invention includes a recording layer, and means for applying a voltage to the recording layer, generating a resistance change in the recording layer, and recording data. The recording layer is composed of a composite compound having at least two types of cation elements, at least one type of the cation element is a transition element having a “d” orbit in which electrons have been incompletely filled, and the shortest distance between the adjacent cation elements is 0.32 nm or less.Type: GrantFiled: April 19, 2010Date of Patent: May 3, 2011Assignee: Kabushiki Kaisha ToshibaInventors: Koichi Kubo, Takahiro Hirai, Shinya Aoki, Robin Carter, Chikayoshi Kamata
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Publication number: 20110062407Abstract: According to one embodiment, an information recording and reproducing device includes a recording layer which includes a typical element and a transition element, and stores a state of a first electric resistivity and a state of a second electric resistivity different from the first electric resistivity by a movement of the typical element, and an electrode layer which is disposed at one end of the recording layer to apply a voltage or a current to the recording layer. The recording layer includes a first region which is in contact with the electrode layer and the electrode layer includes a second region which is in contact with the recording layer. The first and second regions are opposite to each other. And the first and second regions include the typical element, and a concentration of the typical element in the first region is higher than that in the second region.Type: ApplicationFiled: September 17, 2010Publication date: March 17, 2011Inventors: Chikayoshi KAMATA, Takayuki Tsukamoto, Takeshi Yamaguchi, Tsukasa Nakai, Takahiro Hirai, Shinya Aoki, Kohichi Kubo
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Publication number: 20110062405Abstract: According to one embodiment, an information recording and reproducing device includes a first layer, a second layer, and a recording layer between the first and second layers, which is capable of a transition between a first state of a low resistance and a second state of a high resistance by flowing a current between the first and second layers. A peripheral portion of the recording layer has a composition different from that of a center portion of the recording layer. The center portion includes two kinds of cation elements. And the center portion is different from the peripheral portion in a ratio of the two kinds of cation elements.Type: ApplicationFiled: September 24, 2010Publication date: March 17, 2011Inventors: Takayuki Tsukamoto, Chikayoshi Kamata, Takeshi Yamaguchi, Takahiro Hirai, Shinya Aoki, Kohichi Kubo