Patents by Inventor Yasuharu Sugawara
Yasuharu Sugawara 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).
-
Publication number: 20240185561Abstract: An aerial image change detection apparatus: acquires N-number of first aerial images and M-number of second aerial images; obtains, with respect to a plurality of image pairs among N×M-number of image pairs of the first aerial images and the second aerial images, a change index for each pixel that represents a change in a pixel value between one first aerial image and one second aerial image; adopts a pixel of which the change index is larger than a change threshold as a change location candidate, wherein the change threshold is chosen in accordance with the pair of the first aerial image and the second aerial image; and determines, as a change location, a pixel considered to be a change location candidate in a prescribed percentage or more of the plurality of pairs.Type: ApplicationFiled: October 18, 2023Publication date: June 6, 2024Inventors: Yasuharu Sugawara, Shinji Shimasaki
-
Publication number: 20160133793Abstract: According to one embodiment, a semiconductor light emitting element includes a conductive substrate, a bonding portion, an intermediate metal film, a first electrode, a semiconductor stacked body and a second electrode. The bonding portion is provided on the support substrate and including a first metal film. The intermediate metal film is provided on the bonding portion and having a larger linear expansion coefficient than the first metal film. The first electrode is provided on the intermediate metal film and includes a second metal film having a larger linear expansion coefficient than the intermediate metal film. The semiconductor stacked body is provided on the first electrode and including a light emitting portion. The second electrode is provided on the semiconductor stacked body.Type: ApplicationFiled: December 28, 2015Publication date: May 12, 2016Inventors: Yasuharu SUGAWARA, Yuko KATO, Eiji MURAMOTO
-
Patent number: 9252335Abstract: According to one embodiment, a semiconductor light emitting element includes a conductive substrate, a bonding portion, an intermediate metal film, a first electrode, a semiconductor stacked body and a second electrode. The bonding portion is provided on the support substrate and including a first metal film. The intermediate metal film is provided on the bonding portion and having a larger linear expansion coefficient than the first metal film. The first electrode is provided on the intermediate metal film and includes a second metal film having a larger linear expansion coefficient than the intermediate metal film. The semiconductor stacked body is provided on the first electrode and including a light emitting portion. The second electrode is provided on the semiconductor stacked body.Type: GrantFiled: February 19, 2013Date of Patent: February 2, 2016Assignee: Kabushiki Kaisha ToshibaInventors: Yasuharu Sugawara, Yuko Kato, Eiji Muramoto
-
Publication number: 20150280084Abstract: According to an embodiment, a semiconductor light emitting device includes a semiconductor layer, a first and a second interconnect parts and a first and a second insulating films. The semiconductor layer has a first side and a second side opposite to the first side, and includes a first conductivity type layer, a second conductivity type layer and a light emitting layer. The first interconnect part is electrically connected to the first conductivity type layer. The second interconnect part is electrically connected to the second conductivity type layer. The first insulating film is provided between the semiconductor layer and the first interconnect part, and between the semiconductor layer and the second interconnect part. The second insulating film is in contact with the semiconductor layer on the first side, and has a density different from that of the first insulating film.Type: ApplicationFiled: September 10, 2014Publication date: October 1, 2015Inventor: Yasuharu Sugawara
-
Publication number: 20140203296Abstract: According to an embodiment, a semiconductor light emitting device includes a light emitting body including a semiconductor light emitting layer, a support substrate supporting the light emitting body, and a bonding layer provided between the light emitting body and the support substrate, the bonding layer bonding the light emitting body and the support substrate together. The device also includes a first barrier metal layer provided between the light emitting body and the bonding layer, and an electrode provided between the light emitting body and the first barrier metal layer. The first barrier layer includes a first layer made of nickel and a second layer made of a metal having a smaller linear expansion coefficient than nickel, and the first layer and the second layer are alternately disposed in a multiple-layer structure. The electrode is electrically connected to the light emitting body.Type: ApplicationFiled: March 25, 2014Publication date: July 24, 2014Applicant: KABUSHIKI KAISHA TOSHIBAInventor: Yasuharu SUGAWARA
-
Patent number: 8723336Abstract: According to an embodiment, a semiconductor light emitting device includes a light emitting body including a semiconductor light emitting layer, a support substrate supporting the light emitting body, and a bonding layer provided between the light emitting body and the support substrate, the bonding layer bonding the light emitting body and the support substrate together. The device also includes a first barrier metal layer provided between the light emitting body and the bonding layer, and an electrode provided between the light emitting body and the first barrier metal layer. The first barrier layer includes a first layer made of nickel and a second layer made of a metal having a smaller linear expansion coefficient than nickel, and the first layer and the second layer are alternately disposed in a multiple-layer structure. The electrode is electrically connected to the light emitting body.Type: GrantFiled: May 15, 2012Date of Patent: May 13, 2014Assignee: Kabushiki Kaisha ToshibaInventor: Yasuharu Sugawara
-
Publication number: 20130153920Abstract: According to an embodiment, a semiconductor light emitting device includes a light emitting body including a semiconductor light emitting layer, a support substrate supporting the light emitting body, and a bonding layer provided between the light emitting body and the support substrate, the bonding layer bonding the light emitting body and the support substrate together. The device also includes a first barrier metal layer provided between the light emitting body and the bonding layer, and an electrode provided between the light emitting body and the first barrier metal layer. The first barrier layer includes a first layer made of nickel and a second layer made of a metal having a smaller linear expansion coefficient than nickel, and the first layer and the second layer are alternately disposed in a multiple-layer structure. The electrode is electrically connected to the light emitting body.Type: ApplicationFiled: May 15, 2012Publication date: June 20, 2013Applicant: Kabushiki Kaisha ToshibaInventor: Yasuharu SUGAWARA
-
Patent number: 8426878Abstract: A semiconductor light emitting device includes: a support substrate; a metal layer provided on the support substrate; a semiconductor layer provided on the metal layer and including a light emitting layer; a contact layer containing a semiconductor, selectively provided between the semiconductor layer and the metal layer, and being in contact with the semiconductor layer and the metal layer; and an insulating film provided between the semiconductor layer and the metal layer at a position not overlapping the contact layer.Type: GrantFiled: June 25, 2012Date of Patent: April 23, 2013Assignee: Kabushiki Kaisha ToshibaInventors: Hidefumi Yasuda, Yuko Kato, Yasuharu Sugawara, Toshiyuki Terada, Kazuyoshi Furukawa
-
Publication number: 20130015480Abstract: According to one embodiment, in a semiconductor light emitting device, a substrate has a first surface and a second surface to face to each other, and side surfaces each having a first region extending approximately vertically from the first surface toward the second surface side and a second region sloping broadly from the first region toward the second surface side. A semiconductor laminated body is provided on the first surface of the substrate and includes a first semiconductor layer of a first conductivity type, an active layer and a second semiconductor layer of a second conductivity type which are laminated in the order. A reflection film is provided on the second surface of the substrate.Type: ApplicationFiled: February 24, 2012Publication date: January 17, 2013Applicant: Kabushiki Kaisha ToshibaInventors: Yasuharu SUGAWARA, Yuko Kato
-
Publication number: 20120261707Abstract: A semiconductor light emitting device includes: a support substrate; a metal layer provided on the support substrate; a semiconductor layer provided on the metal layer and including a light emitting layer; a contact layer containing a semiconductor, selectively provided between the semiconductor layer and the metal layer, and being in contact with the semiconductor layer and the metal layer; and an insulating film provided between the semiconductor layer and the metal layer at a position not overlapping the contact layer.Type: ApplicationFiled: June 25, 2012Publication date: October 18, 2012Applicant: Kabushiki Kaisha ToshibaInventors: Hidefumi Yasuda, Yuko Kato, Yasuharu Sugawara, Toshiyuki Terada, Kazuyoshi Furukawa
-
Patent number: 8237183Abstract: A semiconductor light emitting device includes: a support substrate; a metal layer provided on the support substrate; a semiconductor layer provided on the metal layer and including a light emitting layer; a contact layer containing a semiconductor, selectively provided between the semiconductor layer and the metal layer, and being in contact with the semiconductor layer and the metal layer; and an insulating film provided between the semiconductor layer and the metal layer at a position not overlapping the contact layer.Type: GrantFiled: August 14, 2008Date of Patent: August 7, 2012Assignee: Kabushiki Kaisha ToshibaInventors: Hidefumi Yasuda, Yuko Kato, Yasuharu Sugawara, Toshiyuki Terada, Kazuyoshi Furukawa
-
Publication number: 20120100695Abstract: A manufacturing method of a semiconductor device according to one embodiment includes attaching a front-side protecting member to a first main surface of a semiconductor wafer having an element region formed therein; laser-dicing the semiconductor wafer by applying a laser beam from a second main surface opposite to the first main surface of the semiconductor wafer; forming a backside metal film on the second main surface of the semiconductor wafer; and pressing a spherical surface against the front-side protecting member to expand the front-side protecting member and form individually divided semiconductor chips having the backside metal film attached thereto.Type: ApplicationFiled: September 30, 2011Publication date: April 26, 2012Applicant: KABUSHIKI KAISHA TOSHIBAInventors: YASUHARU SUGAWARA, HIDEFUMI YASUDA, SHUJI ITONAGA
-
Publication number: 20110215364Abstract: According to one embodiment, a semiconductor light emitting element includes a conductive substrate, a bonding portion, an intermediate metal film, a first electrode, a semiconductor stacked body and a second electrode. The bonding portion is provided on the support substrate and including a first metal film. The intermediate metal film is provided on the bonding portion and having a larger linear expansion coefficient than the first metal film. The first electrode is provided on the intermediate metal film and includes a second metal film having a larger linear expansion coefficient than the intermediate metal film. The semiconductor stacked body is provided on the first electrode and including a light emitting portion. The second electrode is provided on the semiconductor stacked body.Type: ApplicationFiled: September 9, 2010Publication date: September 8, 2011Applicant: Kabushiki Kaisha ToshibaInventors: Yasuharu Sugawara, Yuko Kato, Eiji Muramoto
-
Publication number: 20110133216Abstract: According to one embodiment, a method is disclosed for manufacturing a semiconductor light emitting device. The method can include forming a plurality of semiconductor stacked bodies on a first major surface of a support substrate with a gap between two neighboring semiconductor stacked bodies. The semiconductor stacked bodies includes a first semiconductor layer, a second semiconductor layer, and a light emitting layer provided between the first semiconductor layer and the second semiconductor layer. The method can bond the plurality of semiconductor stacked bodies to one other support substrate with a bonding member. In addition, the method can remove the support substrate from the plurality of semiconductor stacked bodies by irradiating the plurality of semiconductor stacked bodies with a laser light from a second major surface of the support substrate on a side opposite to the first major substrate. The bonding member is not irradiated with the laser light.Type: ApplicationFiled: September 3, 2010Publication date: June 9, 2011Applicant: Kabushiki Kaisha ToshibaInventor: Yasuharu SUGAWARA
-
Publication number: 20100207249Abstract: A wafer with an orientation notch being cut in a portion of its circumference, the wafer includes: a reinforcing flange formed upright at periphery; and a thin section surrounded by the reinforcing flange and having a smaller thickness than the reinforcing flange. The reinforcing flange includes a circumferential portion formed upright along the circumference and a notch portion formed upright near the orientation notch, and a width of the circumferential portion as viewed parallel to a major surface of the wafer is smaller than a depth of the orientation notch as viewed parallel to the major surface.Type: ApplicationFiled: April 29, 2010Publication date: August 19, 2010Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Yasuharu SUGAWARA, Motoshige KOBAYASHI
-
Patent number: 7737531Abstract: A wafer with an orientation notch being cut in a portion of its circumference, the wafer includes: a reinforcing flange formed upright at periphery; and a thin section surrounded by the reinforcing flange and having a smaller thickness than the reinforcing flange. The reinforcing flange includes a circumferential portion formed upright along the circumference and a notch portion formed upright near the orientation notch, and a width of the circumferential portion as viewed parallel to a major surface of the wafer is smaller than a depth of the orientation notch as viewed parallel to the major surface.Type: GrantFiled: October 17, 2008Date of Patent: June 15, 2010Assignee: Kabushiki Kaisha ToshibaInventors: Yasuharu Sugawara, Motoshige Kobayashi
-
Patent number: 7667224Abstract: A semiconductor light emitting device comprises: a substrate; a semiconductor stacked structure; a first electrode; a second electrode; and a reflective film. The substrate has a top face and a rear face electrode forming portion opposed thereto, and is translucent to light in a first wavelength band. The rear face electrode forming portion is surrounded by a rough surface. The semiconductor stacked structure is provided on the top face of the substrate and includes an active layer that emits light in the first wavelength band. The first electrode is provided on the semiconductor stacked structure, and the second electrode is provided on the rear face electrode forming portion. The reflective film is coated on at least a portion of the rough surface.Type: GrantFiled: March 1, 2007Date of Patent: February 23, 2010Assignee: Kabushiki Kaisha ToshibaInventors: Kenichi Ohashi, Yasuharu Sugawara, Shuji Itonaga, Yasuhiko Akaike
-
Publication number: 20090102020Abstract: A wafer with an orientation notch being cut in a portion of its circumference, the wafer includes: a reinforcing flange formed upright at periphery; and a thin section surrounded by the reinforcing flange and having a smaller thickness than the reinforcing flange. The reinforcing flange includes a circumferential portion formed upright along the circumference and a notch portion formed upright near the orientation notch, and a width of the circumferential portion as viewed parallel to a major surface of the wafer is smaller than a depth of the orientation notch as viewed parallel to the major surface.Type: ApplicationFiled: October 17, 2008Publication date: April 23, 2009Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Yasuharu SUGAWARA, Motoshige Kobayashi
-
Publication number: 20090045425Abstract: A semiconductor light emitting device includes: a support substrate; a metal layer provided on the support substrate; a semiconductor layer provided on the metal layer and including a light emitting layer; a contact layer containing a semiconductor, selectively provided between the semiconductor layer and the metal layer, and being in contact with the semiconductor layer and the metal layer; and an insulating film provided between the semiconductor layer and the metal layer at a position not overlapping the contact layer.Type: ApplicationFiled: August 14, 2008Publication date: February 19, 2009Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Hidefumi YASUDA, Yuko Kato, Yasuharu Sugawara, Toshiyuki Terada, Kazuyoshi Furukawa
-
Patent number: 7488989Abstract: A light emitting element comprises a GaP substrate and a mesa portion. The GaP substrate includes a major surface inclined to the <011> direction from the {100} plane and a side surface covered with inequalities substantially. The mesa portion has a light emitting multi-layer of InGaAlP based material provided on the major surface. A part of a light emitted from the light emitting multi-layer is extracted through the side surface of the GaP substrate.Type: GrantFiled: June 9, 2004Date of Patent: February 10, 2009Assignee: KabushikI Kaisha ToshibaInventors: Koichi Nitta, Takafumi Nakamura, Akihiro Fujiwara, Kuniaki Konno, Yasuharu Sugawara