Patents by Inventor Tadashi Yasui
Tadashi Yasui 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: 9917011Abstract: A semiconductor wafer is provided with a substrate, a GaN type semiconductor film which is laminated on the substrate, a plurality of element regions which are provided on the GaN type semiconductor film, a dielectric film which is laminated on the GaN type semiconductor film, and a dicing region which has a dicing groove which is provided in a lattice form without passing through the dielectric film described above so as to partition the element regions described above. Then, an end on the element region side of the dicing groove is higher or lower than a central portion of the dicing groove in a width direction in a bottom surface of the dicing groove.Type: GrantFiled: April 30, 2015Date of Patent: March 13, 2018Assignee: Sharp Kabushiki KaishaInventors: Satoshi Morishita, Tadashi Yasui, Takao Kinoshita, Tomotoshi Satoh
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Patent number: 9855162Abstract: A spinal orthosis includes: a pair of waist mounting members (2) fixed to both side surfaces of the waist; and a chest pressing member (3) installed to each waist mounting member. The chest pressing member includes: an arched arm (4) pivotally supported by pivots provided on both side surfaces of the waist mounting members and capable of swinging; a chest pressing body (4a) provided at an upper end portion of the arm; a pressing force giving portion (5, 6) provided at a middle part of the arm and giving a pressing force for pressing the chest pressing body to a chest.Type: GrantFiled: October 1, 2012Date of Patent: January 2, 2018Assignee: KAWAMURA GISHI CO., LTD.Inventors: Tadashi Yasui, Hiromitsu Nakajima, Kazuyoshi Horiuchi, Junji Katsuhira, Takane Mitomi
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Publication number: 20170005001Abstract: A semiconductor wafer is provided with a substrate, a GaN type semiconductor film which is laminated on the substrate, a plurality of element regions which are provided on the GaN type semiconductor film, a dielectric film which is laminated on the GaN type semiconductor film, and a dicing region which has a dicing groove which is provided in a lattice form without passing through the dielectric film described above so as to partition the element regions described above. Then, an end on the element region side of the dicing groove is higher or lower than a central portion of the dicing groove in a width direction in a bottom surface of the dicing groove.Type: ApplicationFiled: April 30, 2015Publication date: January 5, 2017Applicant: SHARP KABUSHIKI KAISHAInventors: Satoshi MORISHITA, Tadashi YASUI, Takao KINOSHITA, Tomotoshi SATOH
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Patent number: 9387795Abstract: A headlamp device of a vehicle is configured as follows: A headlamp housing 30 is provided with a shock-absorbing portion 33 which protrudes from the rear wall of the headlamp housing 30 toward the rear of the vehicle, and whose longitudinal section is formed in a U-shape which opens toward the front of the vehicle. The shock-absorbing portion 33 is provided with a lamp mounting foot which protrudes from a posterior wall 33c of the shock-absorbing portion 33 toward the rear of the vehicle, and which has a leading end attached to a vehicle body 2.Type: GrantFiled: October 2, 2012Date of Patent: July 12, 2016Assignee: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHAInventors: Toshiki Inamura, Takanobu Toritani, Katsuhiko Takashina, Tadashi Yasui, Yasushi Saeki
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Publication number: 20150223962Abstract: The spinal orthosis of the invention comprises: a pair of waist mounting members (2) fixed to both side surfaces of the waist; and a chest pressing member (3) installed to the each waist mounting member, wherein the chest pressing member includes: an arched arm (4) pivotally supported by pivots provided on both side surfaces of the waist mounting members and capable of swinging; a chest pressing body (4a) provided at an upper end portion of the arm; a pressing force giving portion (5,6) provided at a middle part of the arm and giving a pressing force for pressing the chest pressing body to a chest.Type: ApplicationFiled: October 1, 2012Publication date: August 13, 2015Applicant: Kawamura Gishi Co., Ltd.Inventors: Tadashi Yasui, Hiromitsu Nakajima, Kazuyoshi Horiuchi, Junji Katsuhira, Takane Mitomi
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Patent number: 9082834Abstract: A nitride semiconductor device is provide that can reduce contact resistance of an ohmic electrode and a nitride semiconductor layer. In a GaN HFET, recesses (106, 109) are formed in a nitride semiconductor multilayer body (20) composed of an undoped GaN layer (1) and an undoped AlGaN layer (2) formed on an Si substrate (10), and a source electrode (11) and a drain electrode (12) are formed in the recesses (106, 109). In a region deeper than an interface (S1, S2) between the GaN layer (1) and the source electrode (11) and drain electrode (12), which are formed from a TiAl material, a first chlorine concentration peak (P11) is formed in vicinity of the interface, and a second chlorine concentration peak (P22) having a chlorine concentration of 1.3×1017 cm?3 or lower is formed at a position deeper than the first chlorine concentration peak (P11).Type: GrantFiled: March 21, 2013Date of Patent: July 14, 2015Assignee: SHARP KABUSHIKI KAISHAInventors: Tadashi Yasui, Satoshi Morishita, Koichiro Fujita, Daisuke Kurita
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Publication number: 20150076562Abstract: A nitride semiconductor device is provide that can reduce contact resistance of an ohmic electrode and a nitride semiconductor layer. In a GaN HFET, recesses (106, 109) are formed in a nitride semiconductor multilayer body (20) composed of an undoped GaN layer (1) and an undoped AlGaN layer (2) formed on an Si substrate (10), and a source electrode (11) and a drain electrode (12) are formed in the recesses (106, 109). In a region deeper than an interface (S1, S2) between the GaN layer (1) and the source electrode (11) and drain electrode (12), which are formed from a TiAl material, a first chlorine concentration peak (P11) is formed in vicinity of the interface, and a second chlorine concentration peak (P22) having a chlorine concentration of 1.3×1017 cm?3 or lower is formed at a position deeper than the first chlorine concentration peak (P11).Type: ApplicationFiled: March 21, 2013Publication date: March 19, 2015Applicant: SHARP KABUSHIKI KAISHAInventors: Tadashi Yasui, Satoshi Morishita, Koichiro Fujita, Daisuke Kurita
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Publication number: 20140233255Abstract: A headlamp device of a vehicle is configured as follows: A headlamp housing 30 is provided with a shock-absorbing portion 33 which protrudes from the rear wall of the headlamp housing 30 toward the rear of the vehicle, and whose longitudinal section is formed in a U-shape which opens toward the front of the vehicle. The shock-absorbing portion 33 is provided with a lamp mounting foot which protrudes from a posterior wall 33c of the shock-absorbing portion 33 toward the rear of the vehicle, and which has a leading end attached to a vehicle body 2.Type: ApplicationFiled: October 2, 2012Publication date: August 21, 2014Applicant: Mitsubishi Jidosha Kogyo Kabushiki KaishaInventors: Toshiki Inamura, Takanobu Toritani, Katsuhiko Takashina, Tadashi Yasui, Yasushi Saeki
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Patent number: 8709300Abstract: The present invention relates to a nickel oxide-stabilized zirconia composite in which nickel oxide is dispersed uniformly, a process for readily producing the composite oxide, and an anode for a solid oxide fuel cell having excellent output characteristics. More specifically, the present invention provides a nickel oxide-stabilized zirconia composite that is produced by sintering a mixture of nickel hydroxide and/or nickel carbonate and a hydroxide of stabilized zirconium.Type: GrantFiled: August 7, 2009Date of Patent: April 29, 2014Assignee: Daiichi Kigenso Kagaku Kogyo Co., Ltd.Inventors: Kyosuke Domae, Takeshi Usui, Tadashi Yasui, Satoshi Watanabe
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Patent number: 8419983Abstract: The present invention relates to a nickel oxide-stabilized zirconia composite in which nickel oxide is dispersed uniformly, a process for readily producing the composite oxide, and an anode for a solid oxide fuel cell having excellent output characteristics. More specifically, the present invention provides a nickel oxide-stabilized zirconia composite that is produced by sintering a mixture of nickel hydroxide and/or nickel carbonate and a hydroxide of stabilized zirconium.Type: GrantFiled: August 7, 2009Date of Patent: April 16, 2013Assignees: Tanaka Chemical Corporation, Daiichi Kigenso Kagaku Kogyo Co., Ltd.Inventors: Kyosuke Domae, Takeshi Usui, Tadashi Yasui, Satoshi Watanabe
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Publication number: 20110133119Abstract: The present invention relates to a nickel oxide-stabilized zirconia composite in which nickel oxide is dispersed uniformly, a process for readily producing the composite oxide, and an anode for a solid oxide fuel cell having excellent output characteristics. More specifically, the present invention provides a nickel oxide-stabilized zirconia composite that is produced by sintering a mixture of nickel hydroxide and/or nickel carbonate and a hydroxide of stabilized zirconium.Type: ApplicationFiled: August 7, 2009Publication date: June 9, 2011Applicants: TANAKA CHEMICAL CORPORATION, DAIICHI KIGENSO KAGAKU KOGYO CO., LTD.Inventors: Kyosuke Domae, Takeshi Usui, Tadashi Yasui, Satoshi Watanabe
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Patent number: 7401630Abstract: A wheel for a wheelchair according to the present invention includes: an outer wheel or ring mounted on the inner periphery of a tire; an inner ring connected with a wheelchair frame (concentric with the outer ring and positioned inside the outer ring); a plurality of rolling elements interposed between the outer ring and the inner ring, arranged with an interval between each other in a circumferential direction; and a plurality of spacers (retainers or interval-holding members) for holding intervals between the rolling elements. Each spacer is in a shape extending along a circumferential direction of the outer ring and the inner ring, and is provided between the rolling elements respectively. The wheel does not have a hub and spokes, and the inner peripheral side does not rotate, and further the wheel weight is light. The wheelchair of the present invention includes the wheel for a wheelchair.Type: GrantFiled: May 20, 2004Date of Patent: July 22, 2008Assignee: THK Co., Ltd.Inventors: Yasushi Matsuda, Tadashi Yasui, Kaoru Hoshide, Takashi Ogata
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Publication number: 20060244227Abstract: A wheel for a wheelchair according to the present invention includes: an outer wheel 13 mounted on the inner periphery of a tire; an inner wheel 15 connected with a wheelchair frame 65 (concentric with the outer wheel 13 and positioned inside the outer wheel 13); a plurality of balls (rolling elements) 17 interposed between the outer wheel 13 and the inner wheel 15, arranged with an interval between each other in a circumferential direction; and a plurality of retainers (interval-holding members) 18 for holding intervals between the rolling elements 17. The retainer 18 is in a shape extending almost along a circumferential direction of the outer wheel 13 and the inner wheel 15, and is provided between the balls 17 respectively. The wheel does not have a hub and spokes, and the inner peripheral side does not rotate, and further the wheel weight is light. The wheelchair of the present invention includes the wheel for a wheelchair.Type: ApplicationFiled: May 20, 2004Publication date: November 2, 2006Applicant: THK CO., LTDInventors: Yasushi Matsuda, Tadashi Yasui, Kaoru Hoshide, Takashi Ogata
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Patent number: 6703755Abstract: It is to provide a brush-equipped motor enabled to be used for a long time without performing operations and without interruption even when the brush wears out. When a rotor is caused to perform a turning operation, cam projections similarly start to perform a turning operation. Then, an abutting part, at which each of the cam projections contacts with a spring piece part of a corresponding one of the first brushes, gradually moves to an end of the first brush. Thus, the spring piece part of each of the first brushes is gradually and elastically deformed in a direction in which brush bodies come away from a commutator. When the turning operation continues still more, an end of each of the second brushes comes off a corresponding one of the cam projections, so that the brush bodies thereof contact with the surface of the commutator.Type: GrantFiled: September 6, 2002Date of Patent: March 9, 2004Assignee: Japan Storage Battery Co., Ltd.Inventors: Shinichi Miyamoto, Tadashi Yasui
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Publication number: 20030048027Abstract: It is to provide a brush-equipped motor enabled to be used for a long time without performing operations and without interruption even when the brush wears out. When a rotor is caused to perform a turning operation, cam projections similarly start to perform a turning operation. Then, an abutting part, at which each of the cam projections contacts with a spring piece part of a corresponding one of the first brushes, gradually moves to an end of the first brush. Thus, the spring piece part of each of the first brushes is gradually and elastically deformed in a direction in which brush bodies come away from a commutator. When the turning operation continues still more, an end of each of the second brushes comes off a corresponding one of the cam projections, so that the brush bodies thereof contact with the surface of the commutator.Type: ApplicationFiled: September 6, 2002Publication date: March 13, 2003Applicant: JAPAN STORAGE BATTERY CO., LTD.Inventors: Shinichi Miyamoto, Tadashi Yasui
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Patent number: 5195354Abstract: A motor driven hydraulic tool including a portable battery is preferably employable for a cable laying operation. To displace a movable die toward and away from a stationary die, a piston is driven by pressurized hydraulic oil fed from a hydraulic pump section. The hydraulic pump section is operatively connected to a driving mechanism including a motor via a cam link mechanism. A plunger of the cam link mechanism includes a ring-shaped fitting portion which has an eccentric shaft fitted therein to rotate freely. The eccentric shaft is made integral with the rotational shaft of a motor for the driving mechanism.Type: GrantFiled: March 17, 1992Date of Patent: March 23, 1993Assignees: Japan Storage Battery Co., Ltd., Izumi Products Co.Inventors: Tadashi Yasui, Masayuki Kobayashi
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Patent number: D481403Type: GrantFiled: August 14, 2002Date of Patent: October 28, 2003Assignees: Japan Storage Battery Co., Ltd., Izumi Products CompanyInventors: Tadashi Yasui, Shigeru Hirabayashi
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Patent number: D481745Type: GrantFiled: August 14, 2002Date of Patent: November 4, 2003Assignees: Japan Storage Battery Co., Ltd., Izumi Products CompanyInventors: Tadashi Yasui, Shigeru Hirabayashi
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Patent number: D386661Type: GrantFiled: April 15, 1996Date of Patent: November 25, 1997Assignees: Japan Storage Battery Co., Ltd., Izumi Products CompanyInventors: Shigeru Hirabayashi, Tadashi Yasui
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Patent number: D387961Type: GrantFiled: April 15, 1996Date of Patent: December 23, 1997Assignees: Japan Storage Battery Co., Ltd., Izumi Products CompanyInventors: Tadashi Yasui, Kiyoko Yamaichi