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).

  • Patent number: 10820385
    Abstract: 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: Grant
    Filed: January 31, 2018
    Date of Patent: October 27, 2020
    Assignee: Rohm Co., Ltd.
    Inventors: Kenichi Fukumoto, Koji Katsura, Ryosuke Kanemitsu, Junichi Itai, Nobuaki Matsui, Seiji Nakashima, Kouji Miyamoto
  • Patent number: 10811563
    Abstract: 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: Grant
    Filed: April 30, 2019
    Date of Patent: October 20, 2020
    Assignee: ROHM CO., LTD.
    Inventors: Nobuaki Matsui, Hirotaka Obuchi
  • Patent number: 10529903
    Abstract: 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: Grant
    Filed: November 29, 2017
    Date of Patent: January 7, 2020
    Assignee: ROHM CO., LTD.
    Inventors: Nobuaki Matsui, Hirotaka Obuchi, Yasuo Nakanishi, Kazuaki Tsutsumi, Takao Fujimori
  • Publication number: 20190387591
    Abstract: 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: Application
    Filed: January 31, 2018
    Publication date: December 19, 2019
    Applicant: ROHM CO., LTD.
    Inventors: Kenichi FUKUMOTO, Koji Katsura, Ryosuke Kanemitsu, Junichi ITAI, Nobuaki MATSUI, Seiji NAKASHIMA, Kouji Miyamoto
  • Publication number: 20190259912
    Abstract: 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: Application
    Filed: April 30, 2019
    Publication date: August 22, 2019
    Applicant: ROHM CO., LTD.
    Inventors: Nobuaki MATSUI, Hirotaka OBUCHI
  • Patent number: 10312411
    Abstract: 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: Grant
    Filed: December 22, 2016
    Date of Patent: June 4, 2019
    Assignee: ROHM CO., LTD.
    Inventors: Nobuaki Matsui, Hirotaka Obuchi
  • Patent number: 9997682
    Abstract: 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: Grant
    Filed: June 4, 2015
    Date of Patent: June 12, 2018
    Assignee: ROHM CO., LTD.
    Inventors: Takao Fujimori, Yasuo Nakanishi, Nobuaki Matsui, Hirotaka Obuchi
  • Patent number: 9991430
    Abstract: 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: Grant
    Filed: February 25, 2016
    Date of Patent: June 5, 2018
    Assignee: ROHM CO., LTD.
    Inventors: Nobuaki Matsui, Hirotaka Obuchi, Yasuo Nakanishi, Kazuaki Tsutsumi, Takao Fujimori
  • Publication number: 20180083172
    Abstract: 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: Application
    Filed: November 29, 2017
    Publication date: March 22, 2018
    Applicant: ROHM CO., LTD.
    Inventors: Nobuaki MATSUI, Hirotaka OBUCHI, Yasuo NAKANISHI, Kazuaki TSUTSUMI, Takao FUJIMORI
  • Patent number: 9799808
    Abstract: 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: Grant
    Filed: January 21, 2014
    Date of Patent: October 24, 2017
    Assignee: ROHM CO., LTD.
    Inventors: Nobuaki Matsui, Seiji Kamida, Tadateru Shibata
  • Patent number: 9663050
    Abstract: 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: Grant
    Filed: January 8, 2014
    Date of Patent: May 30, 2017
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Gen Nishida, Nobuaki Matsui, Reiji Iwaihara, Tatsuya Ayukawa, Tsutomu Hamabe
  • Publication number: 20170098734
    Abstract: 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: Application
    Filed: December 22, 2016
    Publication date: April 6, 2017
    Applicant: ROHM CO., LTD.
    Inventors: Nobuaki MATSUI, Hirotaka OBUCHI
  • Patent number: 9559263
    Abstract: 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: Grant
    Filed: September 17, 2015
    Date of Patent: January 31, 2017
    Assignee: ROHM CO., LTD.
    Inventors: Nobuaki Matsui, Hirotaka Obuchi
  • Patent number: 9553239
    Abstract: 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: Grant
    Filed: February 5, 2014
    Date of Patent: January 24, 2017
    Assignee: ROHM CO., LTD.
    Inventors: Takao Fujimori, Nobuaki Matsui
  • Patent number: 9539968
    Abstract: 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: Grant
    Filed: January 8, 2014
    Date of Patent: January 10, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Gen Nishida, Nobuaki Matsui, Reiji Iwaihara, Tatsuya Ayukawa
  • Publication number: 20160181489
    Abstract: 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: Application
    Filed: February 25, 2016
    Publication date: June 23, 2016
    Applicant: ROHM CO., LTD.
    Inventors: Nobuaki MATSUI, Hirotaka OBUCHI, Yasuo NAKANISHI, Kazuaki TSUTSUMI, Takao FUJIMORI
  • Patent number: 9281444
    Abstract: 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: Grant
    Filed: March 10, 2014
    Date of Patent: March 8, 2016
    Assignee: ROHM CO., LTD.
    Inventors: Nobuaki Matsui, Hirotaka Obuchi, Yasuo Nakanishi, Kazuaki Tsutsumi, Takao Fujimori
  • Patent number: 9244692
    Abstract: 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: Grant
    Filed: April 25, 2014
    Date of Patent: January 26, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Nobuaki Matsui
  • Publication number: 20160005929
    Abstract: 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: Application
    Filed: September 17, 2015
    Publication date: January 7, 2016
    Applicant: ROHM CO., LTD.
    Inventors: Nobuaki MATSUI, Hirotaka OBUCHI
  • Publication number: 20150360632
    Abstract: 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: Application
    Filed: January 8, 2014
    Publication date: December 17, 2015
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Gen NISHIDA, Nobuaki MATSUI, Reiji IWAIHARA, Tatsuya AYUKAWA, Tsutomu HAMABE