Patents by Inventor Tadashi Sakai

Tadashi Sakai 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: 11467277
    Abstract: An object recognition apparatus groups reflection points detected by a radar device, and recognizes an object around the own vehicle, based on a radar-based target detected using the grouped plurality of reflection points and an image-based target detected using an image captured by an image capturing device. The object recognition apparatus includes a reflection point acquiring unit that acquires reflection point information related to the grouped plurality of reflection points, and an object determining unit that determines that a plurality of objects have been detected as a single object by the radar device, based on the reflection point information acquired by the reflection point acquiring unit and the information on the image-based target, if the image-based target detected by the imaging device includes an image-only target not detected by the radar device.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: October 11, 2022
    Assignees: DENSO CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yohei Masui, Tadashi Sakai, Takashi Maeda, Takeshi Nanami, Minoru Nakadori
  • Patent number: 11346922
    Abstract: An object recognition device recognizes an object around the own vehicle by using a radar device and an imaging device. The object recognition apparatus includes: information combining unit that generates combined target information by combining radar-based target information with image-based target information if the object is being detected by the radar device and the imaging device, the radar-based target information being information on an object detected by the radar device, the image-based target information being information on an object detected by the imaging device; and an identical object determining unit that determines that an object detected by the imaging device is identical with an object detected by the radar device, based on time-dependent change of the combined target information.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: May 31, 2022
    Assignees: DENSO CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yohei Masui, Tadashi Sakai, Takashi Maeda, Takeshi Nanami, Minoru Nakadori
  • Patent number: 11086011
    Abstract: A target detection device mounted in a vehicle includes: a radar specification unit; a same target determination unit; and an image specification unit that specifies, as image target position information, an image detection region of an image detection target detected on the basis of a captured image, the image detection region representing the position of the image detection target relative to the base point on an XY-plane with the X-axis representing the vehicle width direction of the vehicle and the Y-axis representing the vehicle length direction of the vehicle. The image specification unit sets the Y-axis range of the image detection region in the Y-axis direction on the basis of the bearing from the base point to each of the two X-directional ends of the image detection target in the captured image and of an expected width minimum value and an expected width maximum value in the X-axis direction.
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: August 10, 2021
    Assignees: DENSO CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tadashi Sakai, Yohei Masui, Ryoma Niihara, Takashi Maeda, Takeshi Nanami, Minoru Nakadori
  • Patent number: 11003927
    Abstract: In a target recognition apparatus that recognizes a target in a periphery of an own vehicle, a radar target acquiring unit acquires, as a radar target, the target that is detected by transmission and reception of radar waves. An image target acquiring unit acquires, as an image target, the target that is included in a captured image captured by an imaging apparatus. A target recognizing unit recognizes, as a first target, one of a plurality of radar targets included in a predetermined area relative to the image target and recognizes, as a second target, at least one of the plurality of radar targets other than the first target. A sameness determining unit determines whether the first target and the second target are the same object.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: May 11, 2021
    Assignees: DENSO CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tomohiko Inoue, Tadashi Sakai, Yohei Masui, Takashi Maeda
  • Patent number: 10847364
    Abstract: A laminated body of an embodiment includes: a silicon layer; a first beryllium oxide layer on the silicon layer; and a diamond semiconductor layer on the first beryllium oxide layer.
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: November 24, 2020
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hisao Miyazaki, Tadashi Sakai
  • Publication number: 20200300969
    Abstract: An object recognition device recognizes an object around the own vehicle by using a radar device and an imaging device. The object recognition apparatus includes: information combining unit that generates combined target information by combining radar-based target information with image-based target information if the object is being detected by the radar device and the imaging device, the radar-based target information being information on an object detected by the radar device, the image-based target information being information on an object detected by the imaging device; and an identical object determining unit that determines that an object detected by the imaging device is identical with an object detected by the radar device, based on time-dependent change of the combined target information.
    Type: Application
    Filed: March 29, 2017
    Publication date: September 24, 2020
    Inventors: Yohei MASUI, Tadashi SAKAI, Takashi MAEDA, Takeshi NANAMI, Minoru NAKADORI
  • Patent number: 10741443
    Abstract: According to one embodiment, a method for manufacturing a semiconductor device is disclosed. The method includes forming a co-catalyst layer and catalyst layer above a surface of a semiconductor substrate. The co-catalyst layer and catalyst layer have fcc structure. The fcc structure is formed such that (111) face of the fcc structure is to be oriented parallel to the surface of the semiconductor substrate. The catalyst includes a portion which contacts the co-catalyst layer. The portion has the fcc structure. An exposed surface of the catalyst layer is planarized by oxidation and reduction treatments. A graphene layer is formed on the catalyst layer.
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: August 11, 2020
    Assignee: Kioxia Corporation
    Inventors: Masayuki Kitamura, Atsuko Sakata, Makoto Wada, Yuichi Yamazaki, Masayuki Katagiri, Akihiro Kajita, Tadashi Sakai, Naoshi Sakuma, Ichiro Mizushima
  • Patent number: 10580737
    Abstract: A graphene wiring structure of an embodiment has: an amorphous or polycrystalline insulating film; and a multilayer graphene on the insulating film. The multilayer graphene including a plurality of graphene crystals having a zigzag direction is oriented at 17 degrees or less with respect to an electric conduction direction on the insulating film.
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: March 3, 2020
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hisao Miyazaki, Tadashi Sakai, Yasutaka Nishida, Takashi Yoshida, Yuichi Yamazaki, Masayuki Katagiri, Naoshi Sakuma
  • Publication number: 20190348284
    Abstract: A laminated body of an embodiment includes: a silicon layer; a first beryllium oxide layer on the silicon layer; and a diamond semiconductor layer on the first beryllium oxide layer.
    Type: Application
    Filed: March 1, 2019
    Publication date: November 14, 2019
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Hisao MIYAZAKI, Tadashi Sakai
  • Publication number: 20190293758
    Abstract: An object recognition apparatus groups reflection points detected by a radar device, and recognizes an object around the own vehicle, based on a radar-based target detected using the grouped plurality of reflection points and an image-based target detected using an image captured by an image capturing device. The object recognition apparatus includes a reflection point acquiring unit that acquires reflection point information related to the grouped plurality of reflection points, and an object determining unit that determines that a plurality of objects have been detected as a single object by the radar device, based on the reflection point information acquired by the reflection point acquiring unit and the information on the image-based target, if the image-based target detected by the imaging device includes an image-only target not detected by the radar device.
    Type: Application
    Filed: March 29, 2017
    Publication date: September 26, 2019
    Inventors: Yohei MASUI, Tadashi SAKAI, Takashi MAEDA, Takeshi NANAMI, Minoru NAKADORI
  • Publication number: 20190293787
    Abstract: A target detection device mounted in a vehicle includes: a radar specification unit; a same target determination unit; and an image specification unit that specifies, as image target position information, an image detection region of an image detection target detected on the basis of a captured image, the image detection region representing the position of the image detection target relative to the base point on an XY-plane with the X-axis representing the vehicle width direction of the vehicle and the Y-axis representing the vehicle length direction of the vehicle. The image specification unit sets the Y-axis range of the image detection region in the Y-axis direction on the basis of the bearing from the base point to each of the two X-directional ends of the image detection target in the captured image and of an expected width minimum value and an expected width maximum value in the X-axis direction.
    Type: Application
    Filed: May 19, 2017
    Publication date: September 26, 2019
    Inventors: Tadashi SAKAI, Yohei MASUI, Ryoma NIIHARA, Takashi MAEDA, Takeshi NANAMI, Minoru NAKADORI
  • Patent number: 10422634
    Abstract: An estimating device includes: a movement amount computing section that, on the basis of a position of a predetermined region within an image picked-up at a first time, and a position of a region that corresponds to the predetermined region and is within an image picked-up in a same direction at a second time that is after the first time, computing a movement amount of the predetermined region in a vertical direction; a movement amount integrating section that computes an integrated value of the movement amounts, each time the movement amount is computed; a correcting section that corrects the integrated value of a current point in time on the basis of time series data of the integrated values of the movement amounts within a past predetermined time period; and an estimating section that estimates a pitch angle of the vehicle on the basis of a corrected integrated value.
    Type: Grant
    Filed: June 24, 2016
    Date of Patent: September 24, 2019
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, DENSO CORPORATION
    Inventors: Akihiro Watanabe, Yusuke Kataoka, Tadashi Sakai, Naoki Kawasaki
  • Publication number: 20190259707
    Abstract: A graphene wiring structure of an embodiment has: an amorphous or polycrystalline insulating film; and a multilayer graphene on the insulating film. The multilayer graphene including a plurality of graphene crystals having a zigzag direction is oriented at 17 degrees or less with respect to an electric conduction direction on the insulating film.
    Type: Application
    Filed: April 30, 2019
    Publication date: August 22, 2019
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Hisao MIYAZAKI, Tadashi Sakai, Yasutaka Nishida, Takashi Yoshida, Yuichi Yamazaki, Masayuki Katagiri, Naoshi Sakuma
  • Publication number: 20190259659
    Abstract: According to one embodiment, a method for manufacturing a semiconductor device is disclosed. The method includes forming a co-catalyst layer and catalyst layer above a surface of a semiconductor substrate. The co-catalyst layer and catalyst layer have fcc structure. The fcc structure is formed such that (111) face of the fcc structure is to be oriented parallel to the surface of the semiconductor substrate. The catalyst includes a portion which contacts the co-catalyst layer. The portion has the fcc structure. An exposed surface of the catalyst layer is planarized by oxidation and reduction treatments. A graphene layer is formed on the catalyst layer.
    Type: Application
    Filed: April 30, 2019
    Publication date: August 22, 2019
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Masayuki KITAMURA, Atsuko Sakata, Makoto Wada, Yuichi Yamazaki, Masayuki Katagiri, Akihiro Kajita, Tadashi Sakai, Naoshi Sakuma, Ichiro Mizushima
  • Patent number: 10325805
    Abstract: According to one embodiment, a method for manufacturing a semiconductor device is disclosed. The method includes forming a co-catalyst layer and catalyst layer above a surface of a semiconductor substrate. The co-catalyst layer and catalyst layer have fcc structure. The fcc structure is formed such that (111) face of the fcc structure is to be oriented parallel to the surface of the semiconductor substrate. The catalyst includes a portion which contacts the co-catalyst layer. The portion has the fcc structure. An exposed surface of the catalyst layer is planarized by oxidation and reduction treatments. A graphene layer is formed on the catalyst layer.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: June 18, 2019
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Masayuki Kitamura, Atsuko Sakata, Makoto Wada, Yuichi Yamazaki, Masayuki Katagiri, Akihiro Kajita, Tadashi Sakai, Naoshi Sakuma, Ichiro Mizushima
  • Patent number: 10325851
    Abstract: A graphene wiring structure of an embodiment has: an amorphous or polycrystalline insulating film; and a multilayer graphene on the insulating film. The multilayer graphene including a plurality of graphene crystals having a zigzag direction is oriented at 17 degrees or less with respect to an electric conduction direction on the insulating film.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: June 18, 2019
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hisao Miyazaki, Tadashi Sakai, Yasutaka Nishida, Takashi Yoshida, Yuichi Yamazaki, Masayuki Katagiri, Naoshi Sakuma
  • Publication number: 20190080187
    Abstract: In a target recognition apparatus that recognizes a target in a periphery of an own vehicle, a radar target acquiring unit acquires, as a radar target, the target that is detected by transmission and reception of radar waves. An image target acquiring unit acquires, as an image target, the target that is included in a captured image captured by an imaging apparatus. A target recognizing unit recognizes, as a first target, one of a plurality of radar targets included in a predetermined area relative to the image target and recognizes, as a second target, at least one of the plurality of radar targets other than the first target. A sameness determining unit determines whether the first target and the second target are the same object.
    Type: Application
    Filed: September 7, 2018
    Publication date: March 14, 2019
    Inventors: Tomohiko INOUE, Tadashi SAKAI, Yohei MASUI, Takashi MAEDA
  • Patent number: 10181515
    Abstract: Provided is a semiconductor device according to an embodiment including an i-type or first-conductivity-type first diamond semiconductor layer having a first side surface, a second-conductivity-type second diamond semiconductor layer provided on the first diamond semiconductor layer and having a second side surface, a third diamond semiconductor layer being in contact with the first side surface and the second side surface, the third diamond semiconductor containing nitrogen, a first electrode electrically connected to the first diamond semiconductor layer, and a second electrode electrically connected to the second diamond semiconductor layer.
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: January 15, 2019
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Mariko Suzuki, Tadashi Sakai
  • Patent number: 10170561
    Abstract: In one embodiment, a diamond semiconductor device includes a first diamond semiconductor layer of a first conductivity type which has a main surface, a second diamond semiconductor layer of an i-type or a second conductivity type which is provided on the main surface of the first diamond semiconductor layer, and has a first side surface with a plane orientation of a {111} plane, a third diamond semiconductor layer of the first conductivity type which is provided on the first side surface, and a fourth diamond semiconductor layer of the second conductivity type which is provided on the main surface of the first diamond semiconductor layer and on a side surface of the second diamond semiconductor layer at a side opposite to a side of the third diamond semiconductor layer.
    Type: Grant
    Filed: February 20, 2018
    Date of Patent: January 1, 2019
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Mariko Suzuki, Tadashi Sakai
  • Publication number: 20180277487
    Abstract: A graphene wiring structure of an embodiment has: an amorphous or polycrystalline insulating film; and a multilayer graphene on the insulating film. The multilayer graphene including a plurality of graphene crystals having a zigzag direction is oriented at 17 degrees or less with respect to an electric conduction direction on the insulating film.
    Type: Application
    Filed: August 30, 2017
    Publication date: September 27, 2018
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Hisao MIYAZAKI, Tadashi SAKAI, Yasutaka NISHIDA, Takashi YOSHIDA, Yuichi YAMAZAKI, Masayuki KATAGIRI, Naoshi SAKUMA