Patents by Inventor Yasutaka Nishida
Yasutaka Nishida 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: 10243058Abstract: According to one embodiment, a semiconductor device includes a first semiconductor layer including a nitride semiconductor, a first electrode separated from the first semiconductor layer in a first direction, and a first insulating film including silicon and oxygen and being provided between the first semiconductor layer and the first electrode. The first insulating film has a first thickness in the first direction. The first insulating film includes a first position, and a distance between the first position and the first semiconductor layer is ½ of the first thickness. A first hydrogen concentration of hydrogen at the first position is 2.5×1019 atoms/cm3 or less.Type: GrantFiled: August 21, 2017Date of Patent: March 26, 2019Assignee: Kabushiki Kaisha ToshibaInventors: Toshiya Yonehara, Hisashi Saito, Yosuke Kajiwara, Daimotsu Kato, Tatsuo Shimizu, Yasutaka Nishida
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Publication number: 20180277487Abstract: A graphene wiring structure of an embodiment has: an amorphous or polycrystalline insulating film; and a multilayer graphene on the insulating film. The multilayer graphene including a plurality of graphene crystals having a zigzag direction is oriented at 17 degrees or less with respect to an electric conduction direction on the insulating film.Type: ApplicationFiled: August 30, 2017Publication date: September 27, 2018Applicant: Kabushiki Kaisha ToshibaInventors: Hisao MIYAZAKI, Tadashi SAKAI, Yasutaka NISHIDA, Takashi YOSHIDA, Yuichi YAMAZAKI, Masayuki KATAGIRI, Naoshi SAKUMA
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Publication number: 20180261681Abstract: According to one embodiment, a semiconductor device includes a first semiconductor layer including a nitride semiconductor, a first electrode separated from the first semiconductor layer in a first direction, and a first insulating film including silicon and oxygen and being provided between the first semiconductor layer and the first electrode. The first insulating film has a first thickness in the first direction. The first insulating film includes a first position, and a distance between the first position and the first semiconductor layer is ½ of the first thickness. A first hydrogen concentration of hydrogen at the first position is 2.5×1019 atoms/cm3 or less.Type: ApplicationFiled: August 21, 2017Publication date: September 13, 2018Applicant: Kabushiki Kaisha ToshibaInventors: Toshiya YONEHARA, Hisashi SAITO, Yosuke KAJIWARA, Daimotsu KATO, Tatsuo SHIMIZU, Yasutaka NISHIDA
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Patent number: 9845715Abstract: Such a mobile recycler that an operator can replenish a reducing agent tank with a reducing agent from the ground is provided. A reducing agent tank stores a reducing agent supplied to an exhaust gas treatment device treating an exhaust gas from an engine through reduction reaction. A tank case accommodates the reducing agent tank. The tank case has a support base supporting a container of the reducing agent for replenishment to the reducing agent tank.Type: GrantFiled: January 7, 2015Date of Patent: December 19, 2017Assignee: KOMATSU LTD.Inventors: Yasukuni Suemitsu, Takahito Hashino, Yasutaka Nishida
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Patent number: 9599007Abstract: Such a mobile recycler that an operator can replenish a reducing agent tank with a reducing agent from the ground is provided. A reducing agent tank stores a reducing agent supplied to an exhaust gas treatment device treating an exhaust gas from an engine through reduction reaction. The reducing agent tank is arranged in front of a front end of a crawler belt and in the rear of a front end of a track frame in a fore/aft direction. The reducing agent tank is arranged as being superimposed on the crawler belt in a front view, below an engine frame at a distance therefrom.Type: GrantFiled: August 25, 2014Date of Patent: March 21, 2017Assignee: KOMATSU LTD.Inventors: Yasukuni Suemitsu, Yasutaka Nishida, Takahito Hashino
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Publication number: 20160341090Abstract: Such a mobile recycler that an operator can replenish a reducing agent tank with a reducing agent from the ground is provided. A reducing agent tank stores a reducing agent supplied to an exhaust gas treatment device treating an exhaust gas from an engine through reduction reaction. A tank case accommodates the reducing agent tank. The tank case has a support base supporting a container of the reducing agent for replenishment to the reducing agent tank.Type: ApplicationFiled: January 7, 2015Publication date: November 24, 2016Inventors: Yasukuni SUEMITSU, Takahito HASHINO, Yasutaka NISHIDA
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Publication number: 20160281575Abstract: Such a mobile recycler that an operator can replenish a reducing agent tank with a reducing agent from the ground is provided. A reducing agent tank stores a reducing agent supplied to an exhaust gas treatment device treating an exhaust gas from an engine through reduction reaction. The reducing agent tank is arranged in front of a front end of a crawler belt and in the rear of a front end of a track frame in a fore/aft direction. The reducing agent tank is arranged as being superimposed on the crawler belt in a front view, below an engine frame at a distance therefrom.Type: ApplicationFiled: August 25, 2014Publication date: September 29, 2016Applicant: KOMATSU LTD.Inventors: Yasukuni SUEMITSU, Yasutaka NISHIDA, Takahito HASHINO
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Patent number: 9355668Abstract: A hard-disk drive having a structurally efficient magnetic head slider utilizes a MAMR-based spin torque oscillator (STO) for head-disk contact detection and for flying height sensing. Contact detection and spacing estimation techniques consider the nominal temperature difference, and thus different criteria, between read and write operations.Type: GrantFiled: May 21, 2013Date of Patent: May 31, 2016Assignee: HGST Netherlands B.V.Inventors: Yasutaka Nishida, Masato Shiimoto, Hiroyuki Katada, Ikuya Tagawa, Junguo Xu
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Publication number: 20150259210Abstract: A wiring includes a graphene having a five-seven-membered ring-dense region. The graphene has a plurality of unit cells each including a five-seven-membered ring. The length of the unit cell is 1 nm or more. The shortest distance between most closely adjacent unit cells among the unit cells is 5 nm or less in the five-seven-membered ring-dense region.Type: ApplicationFiled: February 23, 2015Publication date: September 17, 2015Applicant: Kabushiki Kaisha ToshibaInventors: Yuichi YAMAZAKI, Takashi YOSHIDA, Yasutaka NISHIDA, Hisao MIYAZAKI, Fumihiko AlGA, Tadashi SAKAI
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Publication number: 20150200044Abstract: A magnet material of an embodiment includes a composition represented by a formula 1: (Fe1-x-yCoxTy)2(B1-aAa)b, and a metallic structure having a CuAl2 crystal phase as a main phase. T is at least one element selected from V, Cr, and Mn. A is at least one element selected from C, N, Si, S, P, and Al. An atomic ratio x of Co and an atomic ratio y of the element T satisfy 0.01?y?0.5 and x+y?0.5. When the element T includes at least one element selected from V and Cr, a total atomic ratio of V and Cr is 0.03 or more. When the element T includes Mn, an atomic ratio of Mn is 0.3 or less. An atomic ratio a of the element A satisfies 0?a?0.4. A total atomic ratio b of B and the element A satisfies 0.8?b?1.2.Type: ApplicationFiled: March 19, 2015Publication date: July 16, 2015Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Masaki ENDO, Yasutaka Nishida, Shinya Sakurada, Keiko Okamoto, Fumihiko Aiga
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Publication number: 20140347969Abstract: A hard-disk drive having a structurally efficient magnetic head slider utilizes a MAMR-based spin torque oscillator (STO) for head-disk contact detection and for flying height sensing. Contact detection and spacing estimation techniques consider the nominal temperature difference, and thus different criteria, between read and write operations.Type: ApplicationFiled: May 21, 2013Publication date: November 27, 2014Applicant: HGST Netherlands B.V.Inventors: Yasutaka Nishida, Masato Shiimoto, Hiroyuki Katada, Ikuya Tagawa, Junguo Xu
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Patent number: 8848317Abstract: A magnetic disk drive system configured for shingled magnetic data recording wherein data tracks are recorded in an overlapping fashion on a magnetic media. The disk drive system includes magnetic write heads that are asymmetric so as to have increased writing at one side of the write head. The magnetic disk drive system includes magnetic write heads that are mirror images of one another so that write heads located at opposite surfaces of the magnetic media (e.g. one head facing up and one facing down) end up having preferential writing in the location relative to inner and outer diameters of the magnetic media.Type: GrantFiled: December 21, 2012Date of Patent: September 30, 2014Assignee: HGST Netherlands B.V.Inventors: Masato Shiimoto, Ikuya Tagawa, Yasutaka Nishida, Hiroyuki Katada
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Patent number: 8802974Abstract: A solar cell includes a p-n junction formed by joining a p-type semiconductor and an n-type semiconductor. The p-type semiconductor is a chalcopyrite compound semiconductor with a band gap of 1.5 eV or more within which an intermediate level exists with a half bandwidth of 0.05 eV or more. The intermediate level is different from an impurity level. The chalcopyrite compound semiconductor includes a first element having first electronegativity of 1.9 or more in Pauling units, the first element occupying a lattice site of the semiconductor. A portion of the first element is substituted with a second element having second electronegativity different from the first electronegativity, the second element being a congeneric element of the first element. The intermediate level is created by substituting the first element with the second element.Type: GrantFiled: September 24, 2009Date of Patent: August 12, 2014Assignee: Kabushiki Kaisha ToshibaInventors: Yasutaka Nishida, Michihiko Inaba, Shinya Sakurada, Satoshi Itoh
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Publication number: 20140177105Abstract: A magnetic disk drive system configured for shingled magnetic data recording wherein data tracks are recorded in an overlapping fashion on a magnetic media. The disk drive system includes magnetic write heads that are asymmetric so as to have increased writing at one side of the write head. The magnetic disk drive system includes magnetic write heads that are mirror images of one another so that write heads located at opposite surfaces of the magnetic media (e.g. one head facing up and one facing down) end up having preferential writing in the location relative to inner and outer diameters of the magnetic media.Type: ApplicationFiled: December 21, 2012Publication date: June 26, 2014Applicant: HGST Netherlands B.V.Inventors: Masato Shiimoto, Ikuya Tagawa, Yasutaka Nishida, Hiroyuki Katada
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Patent number: 8677576Abstract: A side release buckle includes a plug and a socket into which the plug is inserted for engagement. The plug includes: a base provided with a belt attachment; a pair of legs projecting from the base; an engaging portion formed to the legs; and a connecting portion connecting the legs to each other. The socket includes: a body provided with a belt attachment and an insertion opening; a housing space formed in the body and housing the legs inserted from the insertion opening; an engaged portion formed in the body and engageable with the engaging portion; and a cutout dented toward the insertion opening from an edge of the belt attachment. The cutout is formed over an area surrounded by the legs and the connecting portion when the legs and the connecting portion are housed in the housing space while the engaging portion and the engaged portion are engaged.Type: GrantFiled: December 25, 2009Date of Patent: March 25, 2014Assignee: YKK CorporationInventors: Ryoichiro Uehara, Tomoko Yagami, Yasutaka Nishida, Takeshi Harada, Kenichi Yoshie
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Patent number: 8643967Abstract: The present invention enhances reliability by correcting a write error due to unstable oscillation of a spin torque oscillator. In the present invention, a resistance value of a spin torque oscillator is monitored to detect that oscillation becomes unstable during recording. When a measured resistance value is out of a predefined normal range, information for which the recording operation is already performed is rewritten.Type: GrantFiled: February 23, 2012Date of Patent: February 4, 2014Assignee: Hitachi, Ltd.Inventors: Hiroyuki Katada, Yasutaka Nishida, Masato Shiimoto
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Patent number: 8601652Abstract: A side release buckle includes a plug and a socket into which the plug is inserted for engagement. The plug includes: a base provided with a belt attachment; a pair of legs projecting from the base; an engaging portion formed to the legs; and a connecting portion connecting the legs to each other. The socket includes: a body provided with a belt attachment and an insertion opening; a housing space formed in the body and housing the legs inserted from the insertion opening; an engaged portion formed in the body and engageable with the engaging portion; and a cutout dented toward the insertion opening from an edge of the belt attachment. The cutout is formed over an area surrounded by the legs and the connecting portion when the legs and the connecting portion are housed in the housing space while the engaging portion and the engaged portion are engaged.Type: GrantFiled: October 8, 2012Date of Patent: December 10, 2013Assignee: YKK CorporationInventors: Ryoichiro Uehara, Tomoko Yagami, Yasutaka Nishida, Takeshi Harada, Kenichi Yoshie
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Patent number: 8583322Abstract: A mobile crusher includes: a crusher that crushes raw material; a discharge conveyor being disposed on a downstream side of the crusher to discharge the material crushed by the crusher; an engine that serves as a driving source at least for the crusher and the discharge conveyer; a fuel injection quantity controlling unit that controls a speed of the engine; a crusher pressure sensor that determines a change in a load of the crushed material in the crusher; and a pressure sensor that determines presence or absence of the crushed material to be discharged on the discharge conveyor. When the crusher pressure sensor determines that the load on the crusher is reduced and the pressure sensor determines that the crushed material is not present on the discharge conveyor, the fuel injection quantity controlling unit lowers the speed of the engine to a decelerated speed.Type: GrantFiled: May 1, 2009Date of Patent: November 12, 2013Assignee: Komatsu Ltd.Inventors: Masaho Yamaguchi, Yasutaka Nishida, Mitsunobu Yamada, Tooru Nakayama, Ryouichi Togashi
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Patent number: 8522409Abstract: A side release buckle includes a plug and a socket into which the plug is inserted for engagement. The plug includes: a base being provided with a belt attachment and a pair of legs; and an engaging portion being formed to each of the legs. The socket includes: a body being provided with a belt attachment and an insertion opening; a housing space being formed in the body and capable of housing the legs inserted from the insertion opening (22); and an engaged portion being formed in the body and engageable with the engaging portion. The body includes an undulation being continuously formed in an insertion direction of the legs on at least one of top and bottom surfaces of the body.Type: GrantFiled: October 8, 2012Date of Patent: September 3, 2013Assignee: YKK CorporationInventors: Ryoichiro Uehara, Yasutaka Nishida
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Publication number: 20130091671Abstract: A front release buckle of the invention includes a plug and a socket. The plug includes: a base; a leg that projects from the base; and an engaging portion formed to the leg. The socket includes: a body having an insertion opening; a housing space that is defined inside the body and capable of housing the leg inserted through the insertion opening; an engaged portion that is formed on the body and engageable with the engaging portion; and a manipulation portion that disengages an engagement between the engaging portion and the engaged portion. The plug and the socket are formed to be flat. The leg is flat and flexible in a thickness direction. The engaging portion and the engaged portion are engaged with each other in the thickness direction. The engaging portion projects in a width direction of the leg and is formed within the thickness of the leg.Type: ApplicationFiled: June 24, 2010Publication date: April 18, 2013Applicant: YKK CorporationInventors: Yasutaka Nishida, Takeshi Harada