Patents by Inventor Kazuhiko Sugiura
Kazuhiko Sugiura 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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Publication number: 20240093119Abstract: Provided is a silicone based anti-foaming agent oil compound that has not only superior anti-foaming speed but also anti-foaming performance that does not degrade with repeated use or use over a long period. The silicone based anti-foaming agent oil compound comprises: (A) an essentially hydrophobic organopolysiloxane with a viscosity at 25° C. of 2,500 to 50,000 mPa·s: 20 to 80 parts by mass; (B) a hydrophobic organopolysiloxane or cyclic organopolysiloxane having silanol groups at least at both terminals: 20 to 80 parts by mass; (C) a silane or silane condensation product: 1 to 10 parts by mass; and (D) a fine powder silica with a specific surface area of 50 m2/g or more: 2 to 10 parts by mass; where the total amount of (A) and (B) combined is 100 parts by mass. Also provided is a method for manufacturing the silicone based anti-foaming agent oil compound.Type: ApplicationFiled: December 23, 2021Publication date: March 21, 2024Inventors: Kazuhiko KOJIMA, Ikutaro MORIKAWA, Tsunehito SUGIURA, Takeshi YOSHIZAWA
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Publication number: 20240076572Abstract: Provided is a silicone anti-foaming agent composition that not only has superior anti-foaming speed but also in which anti-foaming performance is not reduced even when used repeatedly or over a long period. The composition comprises: a polyorganosiloxane polymer crosslinked product having a polyoxyalkylene group, which includes: moiety structure (I): -R1-(R22SiO)d-R1(where R1 represents an alkylene group bonded to a silicon atom on the polysiloxane chain, R2 represents a monovalent hydrocarbon group, and d is 200 to 1000); and moiety structure (II): —(CeH2e)—O—(EO)x-(PO)y-(BO)z-R3 (where a single bond on the left end is bonded to a silicon atom on the polysiloxane chain, R3 represents a hydrogen atom, an alkyl group, an aryl group or an acyl group, e is 2 to 10, (x+y+z) is 40 to 100, x is 15 to 50, y is 15 to 50, and z is 0 to 50).Type: ApplicationFiled: December 23, 2021Publication date: March 7, 2024Inventors: Tsunehito SUGIURA, Kazuhiko KOJIMA, Ikutaro MORIKAWA, Takeshi YOSHIZAWA
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Patent number: 11189493Abstract: A silicon carbide semiconductor device includes a silicon carbide semiconductor substrate having a front surface and a rear surface, and an ohmic electrode in ohmic contact with silicon carbide of at least one of the front surface or the rear surface of the silicon carbide semiconductor substrate. The ohmic electrode is made of Ni containing 0.1 wt % or more and 15 wt % or less of P as an impurity. The ohmic electrode contains Ni silicide including NiSi. The ohmic electrode further contains Ni5P2 in the Ni silicide. A method for manufacturing the silicon carbide semiconductor device includes forming a metal thin film on the silicon carbide that is to be in ohmic contact with the ohmic electrode, and forming the ohmic electrode by laser annealing that includes irradiating the metal thin film with laser light and reacting the Ni with Si in the silicon carbide to generate Ni silicide.Type: GrantFiled: January 29, 2019Date of Patent: November 30, 2021Assignee: DENSO CORPORATIONInventors: Jun Kawai, Kazuhiko Sugiura
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Patent number: 11101246Abstract: In a semiconductor device, a first semiconductor chip and a second semiconductor chip are disposed between a first support member and a second support member. A first underlayer bonding material is disposed between the first semiconductor chip and the first support member. A second underlayer bonding material is disposed between the second semiconductor chip and the first support member. A first upper layer bonding material is disposed between the first semiconductor chip and the second support member. A second upper layer bonding material is disposed between the second semiconductor chip and the second support member.Type: GrantFiled: March 19, 2020Date of Patent: August 24, 2021Assignee: DENSO CORPORATIONInventors: Tomohito Iwashige, Takeshi Endo, Kazuhiko Sugiura
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Patent number: 10943847Abstract: A semiconductor device includes a semiconductor chip having an electrode portion and a joining member electrically connected to the electrode portion to allow an electric current to flow in the semiconductor chip through the joining member. The joining member contains a protective material that has a positive temperature coefficient of resistivity, and the positive temperature coefficient of resistivity has a larger value in a temperature range higher than a threshold temperature than in a temperature range lower than the threshold temperature, the threshold temperature being a predetermined temperature lower than a breakdown temperature of the semiconductor chip. The electrode portion of the semiconductor chip may contain the protective material.Type: GrantFiled: December 11, 2018Date of Patent: March 9, 2021Assignee: Mitsubishi Electric CorporationInventors: Kazuhiko Sugiura, Tomohito Iwashige, Jun Kawai
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Patent number: 10804237Abstract: A semiconductor device includes: a mounting member having an electrode; a conductive member facing the electrode; and a bonding member electrically and mechanically connecting the electrode and the conductive member. The bonding member is made of a sintered body in which an additive particle including a metal atom having aggregation energy higher than a silver atom is added to an silver particle.Type: GrantFiled: March 14, 2019Date of Patent: October 13, 2020Assignee: DENSO CORPORATIONInventors: Kazuhiko Sugiura, Tomohito Iwashige, Jun Kawai
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Publication number: 20200312818Abstract: In a semiconductor device, a first semiconductor chip and a second semiconductor chip are disposed between a first support member and a second support member. A first underlayer bonding material is disposed between the first semiconductor chip and the first support member. A second underlayer bonding material is disposed between the second semiconductor chip and the first support member. A first upper layer bonding material is disposed between the first semiconductor chip and the second support member. A second upper layer bonding material is disposed between the second semiconductor chip and the second support member.Type: ApplicationFiled: March 19, 2020Publication date: October 1, 2020Inventors: Tomohito IWASHIGE, Takeshi ENDO, Kazuhiko SUGIURA
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Patent number: 10763204Abstract: A semiconductor device includes: a semiconductor element; a support as a metallic member that includes a metallized layer having a first component as an iron group element and a second component as a periodic table group five or group six transition metal element other than chromium provided at an outermost surface of the support, and is arranged such that the outermost surface faces the semiconductor element; a joint material that is arranged between the outermost surface of the support and the semiconductor element, and is joined with the outermost surface to fix the semiconductor element to the support; and a molding resin that is arranged to cover a joint body having the support, the joint material and the semiconductor element.Type: GrantFiled: February 25, 2019Date of Patent: September 1, 2020Assignees: DENSO CORPORATION, C. Uyemura & Co., Ltd.Inventors: Tomohito Iwashige, Kazuhiko Sugiura, Kazuhiro Miwa, Yuichi Sakuma, Seigo Kurosaka, Yukinori Oda
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Patent number: 10441618Abstract: A moringa extract containing a benzyl glucosinolate in a content of 6% by mass or more, calculated as a dry solid content of the extract, wherein the extract does not substantially contain an alkaloid. The moringa extract of the present invention for solving a first aspect is useful in the field of foodstuff or the like. Also, the PPAR activator of the present invention for solving a second aspect has excellent PPAR activation action, and has no disadvantages in side effects, so that it can be ingested for long term, which can be preferably used in foodstuff and the like. Therefore, the PPAR activator of the present invention for solving a second aspect can be expected to be used as a food, a supplement or a medicament not only for prevention of disease such as insulin resistance, hyperinsulinism, Type 2 diabetes, hypertension, hyperlipidemia, arterial sclerosis and obesity, but also for fatigue recovery or endurance improvement by improving basal metabolism.Type: GrantFiled: October 21, 2016Date of Patent: October 15, 2019Assignee: TAIYO KAGAKU CO., LTD.Inventors: Kazuhiko Sugiura, Aditya Kulkarni
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Publication number: 20190259615Abstract: A silicon carbide semiconductor device includes a silicon carbide semiconductor substrate having a front surface and a rear surface, and an ohmic electrode in ohmic contact with silicon carbide of at least one of the front surface or the rear surface of the silicon carbide semiconductor substrate. The ohmic electrode is made of Ni containing 0.1 wt % or more and 15 wt % or less of P as an impurity. The ohmic electrode contains Ni silicide including NiSi. The ohmic electrode further contains Ni5P2 in the Ni silicide. A method for manufacturing the silicon carbide semiconductor device includes forming a metal thin film on the silicon carbide that is to be in ohmic contact with the ohmic electrode, and forming the ohmic electrode by laser annealing that includes irradiating the metal thin film with laser light and reacting the Ni with Si in the silicon carbide to generate Ni silicide.Type: ApplicationFiled: January 29, 2019Publication date: August 22, 2019Inventors: Jun KAWAI, Kazuhiko SUGIURA
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Patent number: 10361274Abstract: A silicon carbide semiconductor device includes: a semiconductor substrate that has a front surface and a rear surface, and is made of silicon carbide; and an ohmic electrode that is ohmically connected to the front surface or the rear surface of the semiconductor substrate. The ohmic electrode includes a metal silicide part and a metal carbide part. The metal silicide part surrounds a periphery of the metal carbide part that has a block shape. The metal silicide part is disposed between the semiconductor substrate and the metal carbide part.Type: GrantFiled: February 28, 2017Date of Patent: July 23, 2019Assignee: DENSO CORPORATIONInventors: Jun Kawai, Kazuhiko Sugiura, Yasuji Kimoto, Kayo Kondo
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Publication number: 20190214360Abstract: A semiconductor device includes: a mounting member having an electrode; a conductive member facing the electrode; and a bonding member electrically and mechanically connecting the electrode and the conductive member. The bonding member is made of a sintered body in which an additive particle including a metal atom having aggregation energy higher than a silver atom is added to an silver particle.Type: ApplicationFiled: March 14, 2019Publication date: July 11, 2019Inventors: Kazuhiko SUGIURA, Tomohito IWASHIGE, Jun KAWAI
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Publication number: 20190198441Abstract: A semiconductor device includes: a semiconductor element; a support as a metallic member that includes a metallized layer having a first component as an iron group element and a second component as a periodic table group five or group six transition metal element other than chromium provided at an outermost surface of the support, and is arranged such that the outermost surface faces the semiconductor element; a joint material that is arranged between the outermost surface of the support and the semiconductor element, and is joined with the outermost surface to fix the semiconductor element to the support; and a molding resin that is arranged to cover a joint body having the support, the joint material and the semiconductor element.Type: ApplicationFiled: February 25, 2019Publication date: June 27, 2019Inventors: Tomohito IWASHIGE, Kazuhiko SUGIURA, Kazuhiro MIWA, Yuichi SAKUMA, Seigo KUROSAKA, Yukinori ODA
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Publication number: 20190109067Abstract: A semiconductor device includes a semiconductor chip having an electrode portion and a joining member electrically connected to the electrode portion to allow an electric current to flow in the semiconductor chip through the joining member. The joining member contains a protective material that has a positive temperature coefficient of resistivity, and the positive temperature coefficient of resistivity has a larger value in a temperature range higher than a threshold temperature than in a temperature range lower than the threshold temperature, the threshold temperature being a predetermined temperature lower than a breakdown temperature of the semiconductor chip. The electrode portion of the semiconductor chip may contain the protective material.Type: ApplicationFiled: December 11, 2018Publication date: April 11, 2019Inventors: Kazuhiko SUGIURA, Tomohito IWASHIGE, Jun KAWAI
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Publication number: 20180323261Abstract: A silicon carbide semiconductor device includes: a semiconductor substrate that has a front surface and a rear surface, and is made of silicon carbide; and an ohmic electrode that is ohmically connected to the front surface or the rear surface of the semiconductor substrate. The ohmic electrode includes a metal silicide part and a metal carbide part. The metal silicide part surrounds a periphery of the metal carbide part that has a block shape. The metal silicide part is disposed between the semiconductor substrate and the metal carbide part.Type: ApplicationFiled: February 28, 2017Publication date: November 8, 2018Applicant: DENSO CORPORATIONInventors: Jun KAWAI, Kazuhiko SUGIURA, Yasuji KIMOTO, Kayo KONDO
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Publication number: 20180318367Abstract: A moringa extract containing a benzyl glucosinolate in a content of 6% by mass or more, calculated as a dry solid content of the extract, wherein the extract does not substantially contain an alkaloid. The moringa extract of the present invention for solving a first aspect is useful in the field of foodstuff or the like. Also, the PPAR activator of the present invention for solving a second aspect has excellent PPAR activation action, and has no disadvantages in side effects, so that it can be ingested for long term, which can be preferably used in foodstuff and the like. Therefore, the PPAR activator of the present invention for solving a second aspect can be expected to be used as a food, a supplement or a medicament not only for prevention of disease such as insulin resistance, hyperinsulinism, Type 2 diabetes, hypertension, hyperlipidemia, arterial sclerosis and obesity, but also for fatigue recovery or endurance improvement by improving basal metabolism.Type: ApplicationFiled: October 21, 2016Publication date: November 8, 2018Applicant: TAIYO KAGAKU CO., LTD.Inventors: Kazuhiko SUGIURA, Aditya KULKARNI
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Patent number: 9997432Abstract: A semiconductor device includes: a heat spreader; a semiconductor element on the heat spreader; and a connection member arranged between the heat spreader and the semiconductor element. The heat spreader is arranged in an order of the first heat spreader, the second heat spreader and the first heat spreader in one direction of a plane of the heat spreader. Each of the first and second heat spreaders includes multiple anisotropic heat conductive planes having a high heat conductivity. The anisotropic heat conductive plane of the first heat spreader is in parallel to both a stacking direction and a first direction perpendicular to the stacking direction. The anisotropic heat conductive plane of the second heat spreader is in parallel to both the stacking direction and a second direction perpendicular to the stacking direction. A projection region of the semiconductor element overlaps with the second heat spreader.Type: GrantFiled: October 16, 2015Date of Patent: June 12, 2018Assignee: DENSO CORPORATIONInventors: Takeo Yamamoto, Kazuhiko Sugiura
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Publication number: 20170213778Abstract: A semiconductor device includes: a heat spreader; a semiconductor element on the heat spreader; and a connection member arranged between the heat spreader and the semiconductor element. The heat spreader is arranged in an order of the first heat spreader, the second heat spreader and the first heat spreader in one direction of a plane of the heat spreader. Each of the first and second heat spreaders includes multiple anisotropic heat conductive planes having a high heat conductivity. The anisotropic heat conductive plane of the first heat spreader is in parallel to both a stacking direction and a first direction perpendicular to the stacking direction. The anisotropic heat conductive plane of the second heat spreader is in parallel to both the stacking direction and a second direction perpendicular to the stacking direction. A projection region of the semiconductor element overlaps with the second heat spreader.Type: ApplicationFiled: October 16, 2015Publication date: July 27, 2017Inventors: Takeo YAMAMOTO, Kazuhiko SUGIURA
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Patent number: 9263267Abstract: In a manufacturing method of a silicon carbide semiconductor device, a semiconductor substrate made of single crystal silicon carbide is prepared. At a portion of the semiconductor substrate where a first electrode is to be formed, a metal thin film made of electrode material including an impurity is formed. After the metal thin film is formed, the first electrode including a metal reaction layer in which the impurity is introduced is formed by irradiating the metal thin film with a laser light.Type: GrantFiled: November 19, 2014Date of Patent: February 16, 2016Assignee: DENSO CORPORATIONInventors: Jun Kawai, Norihito Tokura, Kazuhiko Sugiura
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Patent number: 9105558Abstract: A silicon carbide semiconductor device includes: a semiconductor substrate made of silicon carbide single crystal and having a principal surface and a backside; and an ohmic electrode contacting one of the principal surface and the backside of the semiconductor substrate in an ohmic manner. A boundary between the ohmic electrode and the one of the principal surface and the backside of the semiconductor substrate is terminated with an element, which has a Pauling electronegativity larger than silicon and a binding energy with silicon larger than a binding energy of Si—H.Type: GrantFiled: March 5, 2014Date of Patent: August 11, 2015Assignee: DENSO CORPORATIONInventors: Jun Kawai, Kazuhiko Sugiura