Patents by Inventor Nobuaki Matsui
Nobuaki Matsui 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: 20230128301Abstract: The disclosure includes a hot water circulation device, and a hot water device monitoring system including a circulation passage; a circulation pump circulating hot water in the circulation passage; a closed expansion tank in which a water chamber communicating with the circulation passage and an air chamber filled with a predetermined pressure in initial state are partitioned by a diaphragm; and a control unit controlling hot water circulation. The hot water circulation device includes an air chamber pressure sensor detecting pressure in the air chamber; a closing valve cutting off water chamber from the circulation passage; and an open valve opening to atmosphere from between closing valve and water chamber. The control unit closes closing valve and opens opening valve during hot water circulation, detects pressure in the air chamber by the air chamber pressure sensor, and issues a warning notification when the pressure is not within predetermined pressure range.Type: ApplicationFiled: October 14, 2022Publication date: April 27, 2023Applicant: NORITZ CORPORATIONInventor: Nobuaki Matsui
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Patent number: 10820385Abstract: An LED drive circuit drives an LED module. The LED module has a light-emitting diode, and an identification unit having characteristic information relating to light-emitting characteristics of the light-emitting diode. The LED drive circuit includes a detection unit and a drive circuit. The detection unit is provided for detecting characteristic information, and generates a detection signal that corresponds to the characteristic information. The drive circuit generates drive current by a drive signal supplied according to the characteristic information based on the detection signal, and supplies the drive current to drive the light-emitting diode.Type: GrantFiled: January 31, 2018Date of Patent: October 27, 2020Assignee: Rohm Co., Ltd.Inventors: Kenichi Fukumoto, Koji Katsura, Ryosuke Kanemitsu, Junichi Itai, Nobuaki Matsui, Seiji Nakashima, Kouji Miyamoto
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Patent number: 10811563Abstract: In a light-emitting element (1), a light-emitting layer (4), a second conductivity type semiconductor layer (5), a transparent electrode layer (6), a reflecting electrode layer (7) and an insulating layer (8) are stacked in this order on a first conductivity type semiconductor layer (3), while a first electrode layer (10) and a second electrode layer (12) are stacked on the insulating layer (8) in an isolated state.Type: GrantFiled: April 30, 2019Date of Patent: October 20, 2020Assignee: ROHM CO., LTD.Inventors: Nobuaki Matsui, Hirotaka Obuchi
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Patent number: 10529903Abstract: A light emitting device includes a light emitting layer, a substrate that is transparent to an emission wavelength of the light emitting layer and positioned to receive an emission wavelength from the light emitting layer, a convex pattern including a collection of a plurality of convex portions discretely arranged on a front surface of the substrate with a first pitch, an n type nitride semiconductor layer located on the front surface of the substrate to cover the convex pattern and a p type nitride semiconductor layer located on the light emitting layer. The light emitting layer is located on the n type semiconductor layer. Each of the convex portions includes a sub convex pattern comprising a plurality of fine convex portions discretely formed at the top of the convex portion with a second pitch smaller than the first pitch, and a base supporting the sub convex pattern.Type: GrantFiled: November 29, 2017Date of Patent: January 7, 2020Assignee: ROHM CO., LTD.Inventors: Nobuaki Matsui, Hirotaka Obuchi, Yasuo Nakanishi, Kazuaki Tsutsumi, Takao Fujimori
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Publication number: 20190387591Abstract: An LED drive circuit drives an LED module. The LED module has a light-emitting diode, and an identification unit having characteristic information relating to light-emitting characteristics of the light-emitting diode. The LED drive circuit includes a detection unit and a drive circuit. The detection unit is provided for detecting characteristic information, and generates a detection signal that corresponds to the characteristic information. The drive circuit generates drive current by a drive signal supplied according to the characteristic information based on the detection signal, and supplies the drive current to drive the light-emitting diode.Type: ApplicationFiled: January 31, 2018Publication date: December 19, 2019Applicant: ROHM CO., LTD.Inventors: Kenichi FUKUMOTO, Koji Katsura, Ryosuke Kanemitsu, Junichi ITAI, Nobuaki MATSUI, Seiji NAKASHIMA, Kouji Miyamoto
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Publication number: 20190259912Abstract: In a light-emitting element (1), a light-emitting layer (4), a second conductivity type semiconductor layer (5), a transparent electrode layer (6), a reflecting electrode layer (7) and an insulating layer (8) are stacked in this order on a first conductivity type semiconductor layer (3), while a first electrode layer (10) and a second electrode layer (12) are stacked on the insulating layer (8) in an isolated state.Type: ApplicationFiled: April 30, 2019Publication date: August 22, 2019Applicant: ROHM CO., LTD.Inventors: Nobuaki MATSUI, Hirotaka OBUCHI
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Patent number: 10312411Abstract: In a light-emitting element (1), a light-emitting layer (4), a second conductivity type semiconductor layer (5), a transparent electrode layer (6), a reflecting electrode layer (7) and an insulating layer (8) are stacked in this order on a first conductivity type semiconductor layer (3), while a first electrode layer (10) and a second electrode layer (12) are stacked on the insulating layer (8) in an isolated state.Type: GrantFiled: December 22, 2016Date of Patent: June 4, 2019Assignee: ROHM CO., LTD.Inventors: Nobuaki Matsui, Hirotaka Obuchi
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Patent number: 9997682Abstract: A light emitting element unit according to the present invention includes a semiconductor light emitting element that has a surface, a back surface, and a side surface, where the surface or the back surface is a light extracting surface from which light generated inside is emitted, a submount which has a bottom wall and a side wall, has a recess portion defined by the bottom wall and the side wall, and supports the semiconductor light emitting element by the bottom wall in a position in which the light extracting surface is directed upward at the recess portion, and has an inclined surface on the side wall, inclined at a predetermined angle with respect to the bottom wall so as to face the side surface of the semiconductor light emitting element, and a light reflecting film formed on the inclined surface of the submount.Type: GrantFiled: June 4, 2015Date of Patent: June 12, 2018Assignee: ROHM CO., LTD.Inventors: Takao Fujimori, Yasuo Nakanishi, Nobuaki Matsui, Hirotaka Obuchi
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Patent number: 9991430Abstract: A light emitting device includes a light emitting layer, a substrate that is transparent to an emission wavelength of the light emitting layer and positioned to receive an emission wavelength from the light emitting layer, a convex pattern including a collection of a plurality of convex portions discretely arranged on a front surface of the substrate with a first pitch, an n type nitride semiconductor layer located on the front surface of the substrate to cover the convex pattern and a p type nitride semiconductor layer located on the light emitting layer. The light emitting layer is located on the n type semiconductor layer. Each of the convex portions includes a sub convex pattern comprising a plurality of fine convex portions discretely formed at the top of the convex portion with a second pitch smaller than the first pitch, and a base supporting the sub convex pattern.Type: GrantFiled: February 25, 2016Date of Patent: June 5, 2018Assignee: ROHM CO., LTD.Inventors: Nobuaki Matsui, Hirotaka Obuchi, Yasuo Nakanishi, Kazuaki Tsutsumi, Takao Fujimori
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Publication number: 20180083172Abstract: A light emitting device includes a light emitting layer, a substrate that is transparent to an emission wavelength of the light emitting layer and positioned to receive an emission wavelength from the light emitting layer, a convex pattern including a collection of a plurality of convex portions discretely arranged on a front surface of the substrate with a first pitch, an n type nitride semiconductor layer located on the front surface of the substrate to cover the convex pattern and a p type nitride semiconductor layer located on the light emitting layer. The light emitting layer is located on the n type semiconductor layer. Each of the convex portions includes a sub convex pattern comprising a plurality of fine convex portions discretely formed at the top of the convex portion with a second pitch smaller than the first pitch, and a base supporting the sub convex pattern.Type: ApplicationFiled: November 29, 2017Publication date: March 22, 2018Applicant: ROHM CO., LTD.Inventors: Nobuaki MATSUI, Hirotaka OBUCHI, Yasuo NAKANISHI, Kazuaki TSUTSUMI, Takao FUJIMORI
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Patent number: 9799808Abstract: A light emitting element includes: a sapphire substrate having a front surface and a rear surface opposite the front surface; a first conductive type semiconductor layer stacked on the front surface of the sapphire substrate; a light emitting layer stacked on the first conductive type semiconductor layer; a second conductive type semiconductor layer stacked on the light emitting layer; a reflective layer which contains Ag and is disposed on the rear surface of the sapphire substrate, the reflective layer reflecting light from the sapphire substrate toward the front surface of the sapphire substrate; and an adhesive layer which is interposed between the sapphire substrate and the reflective layer and is made of ITO, the adhesive layer being adhered to the reflective layer.Type: GrantFiled: January 21, 2014Date of Patent: October 24, 2017Assignee: ROHM CO., LTD.Inventors: Nobuaki Matsui, Seiji Kamida, Tadateru Shibata
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Patent number: 9663050Abstract: A vehicle body front section structure capable of suppressing deformation of a vehicle body in a small overlap collision is obtained. A vehicle body front section structure includes a front side member with a crash box attached to a vehicle front end, a coupling member that is interposed between and joined to the crash box and the front side member at a vehicle front end side, and that is joined to a fender apron section at a vehicle rear end, and a spacer that is disposed at a portion overlapping with the front side member in a vehicle vertical direction between the front side member and the coupling member.Type: GrantFiled: January 8, 2014Date of Patent: May 30, 2017Assignee: Toyota Jidosha Kabushiki KaishaInventors: Gen Nishida, Nobuaki Matsui, Reiji Iwaihara, Tatsuya Ayukawa, Tsutomu Hamabe
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Publication number: 20170098734Abstract: In a light-emitting element (1), a light-emitting layer (4), a second conductivity type semiconductor layer (5), a transparent electrode layer (6), a reflecting electrode layer (7) and an insulating layer (8) are stacked in this order on a first conductivity type semiconductor layer (3), while a first electrode layer (10) and a second electrode layer (12) are stacked on the insulating layer (8) in an isolated state.Type: ApplicationFiled: December 22, 2016Publication date: April 6, 2017Applicant: ROHM CO., LTD.Inventors: Nobuaki MATSUI, Hirotaka OBUCHI
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Patent number: 9559263Abstract: In a light-emitting element 1, a light-emitting layer 4, a second conductivity type semiconductor layer 5, a transparent electrode layer 6, a reflecting electrode layer 7 and an insulating layer 8 are stacked in this order on a first conductivity type semiconductor layer 3, while a first electrode layer 10 and a second electrode layer 12 are stacked on the insulating layer 8 in an isolated state.Type: GrantFiled: September 17, 2015Date of Patent: January 31, 2017Assignee: ROHM CO., LTD.Inventors: Nobuaki Matsui, Hirotaka Obuchi
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Patent number: 9553239Abstract: A light emitting device includes a first conductive-type semiconductor layer laminated on a substrate; a light emitting layer laminated on the first conductive-type semiconductor layer; a second conductive-type semiconductor layer laminated on the light emitting layer; a first ITO layer laminated at a side of the first conductive-type semiconductor layer opposite to the substrate; a second ITO layer laminated at a side of the second conductive-type semiconductor layer opposite to the substrate; a first metal layer laminated on the first ITO layer; and a second metal layer laminated on the second ITO layer. The first and second metal layers have the same structure and each includes a lower metal layer which contacts a corresponding ITO layer of the first ITO layer and the second ITO layer; and an upper metal layer laminated on the lower metal layer, the upper metal layer being thicker than the lower metal layer.Type: GrantFiled: February 5, 2014Date of Patent: January 24, 2017Assignee: ROHM CO., LTD.Inventors: Takao Fujimori, Nobuaki Matsui
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Patent number: 9539968Abstract: A vehicle front section structure includes a front side member that is formed with a front flange at a vehicle front-rear direction front end; a crash box that is joined to the front flange at a rear flange formed at a vehicle front-rear direction rear end; and a coupling member that is joined to a fender apron section at a vehicle rear end. The coupling member includes a joining plate formed at a vehicle front end side joined to the front flange in an interposed state between the front flange and the rear flange, with a front end side of a portion of the coupling member positioned at a vehicle width direction outer side of the front side member angled such that in plan view a rear side is separated further to the vehicle width direction outer side from the front side member than the vehicle front side.Type: GrantFiled: January 8, 2014Date of Patent: January 10, 2017Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Gen Nishida, Nobuaki Matsui, Reiji Iwaihara, Tatsuya Ayukawa
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Publication number: 20160181489Abstract: A light emitting device includes a light emitting layer, a substrate that is transparent to an emission wavelength of the light emitting layer and positioned to receive an emission wavelength from the light emitting layer, a convex pattern including a collection of a plurality of convex portions discretely arranged on a front surface of the substrate with a first pitch, an n type nitride semiconductor layer located on the front surface of the substrate to cover the convex pattern and a p type nitride semiconductor layer located on the light emitting layer. The light emitting layer is located on the n type semiconductor layer. Each of the convex portions includes a sub convex pattern comprising a plurality of fine convex portions discretely formed at the top of the convex portion with a second pitch smaller than the first pitch, and a base supporting the sub convex pattern.Type: ApplicationFiled: February 25, 2016Publication date: June 23, 2016Applicant: ROHM CO., LTD.Inventors: Nobuaki MATSUI, Hirotaka OBUCHI, Yasuo NAKANISHI, Kazuaki TSUTSUMI, Takao FUJIMORI
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Patent number: 9281444Abstract: A light emitting device includes a light emitting layer, a substrate that is transparent to an emission wavelength of the light emitting layer and positioned to receive an emission wavelength from the light emitting layer, a convex pattern including a collection of a plurality of convex portions discretely arranged on a front surface of the substrate with a first pitch, an n type nitride semiconductor layer located on the front surface of the substrate to cover the convex pattern and a p type nitride semiconductor layer located on the light emitting layer. The light emitting layer is located on the n type semiconductor layer. Each of the convex portions includes a sub convex pattern comprising a plurality of fine convex portions discretely formed at the top of the convex portion with a second pitch smaller than the first pitch, and a base supporting the sub convex pattern.Type: GrantFiled: March 10, 2014Date of Patent: March 8, 2016Assignee: ROHM CO., LTD.Inventors: Nobuaki Matsui, Hirotaka Obuchi, Yasuo Nakanishi, Kazuaki Tsutsumi, Takao Fujimori
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Patent number: 9244692Abstract: An information processing apparatus includes a first processing unit, a second processing unit which is different from the first processing unit, a supply unit configured to supply a clock to the first processing unit and the second processing unit, and a control unit configured to control the supply unit in such a manner as to stop a supply of the clock to the second processing unit in response to completion of activation of the second processing unit, and to resume the supply of the clock to the second processing unit in response to completion of activation of the first processing unit.Type: GrantFiled: April 25, 2014Date of Patent: January 26, 2016Assignee: CANON KABUSHIKI KAISHAInventor: Nobuaki Matsui
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Publication number: 20160005929Abstract: In a light-emitting element 1, a light-emitting layer 4, a second conductivity type semiconductor layer 5, a transparent electrode layer 6, a reflecting electrode layer 7 and an insulating layer 8 are stacked in this order on a first conductivity type semiconductor layer 3, while a first electrode layer 10 and a second electrode layer 12 are stacked on the insulating layer 8 in an isolated state.Type: ApplicationFiled: September 17, 2015Publication date: January 7, 2016Applicant: ROHM CO., LTD.Inventors: Nobuaki MATSUI, Hirotaka OBUCHI