Patents by Inventor Yasuhiro Akiyama

Yasuhiro Akiyama 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: 11491084
    Abstract: Medical devices are provided comprising a spike including proximal and distal ends, and a central axis extending from the proximal to the distal end; a valve body; a biasing body which biases the valve body; a distal tube that moves integrally with the valve body to both sides in the axial direction relative to the spike; a proximal tube fixed in the axial direction relative to the spike, the distal tube comprising a guided portion guided toward the proximal tube, and an engagement control unit which moves the guided portion toward one side in the radial direction by connection of the different medical device to the distal tube allowing the guided portion to engage with the proximal tube, and moves the guided portion toward the other side in the radial direction releasing engagement with the proximal tube when the different medical device is detached from the distal tube.
    Type: Grant
    Filed: June 29, 2020
    Date of Patent: November 8, 2022
    Assignee: TERUMO KABUSHIKI KAISHA
    Inventors: Yasuhiro Ueda, Kazuya Akiyama
  • Publication number: 20220314954
    Abstract: A self-driving work vehicle, including: a traveling apparatus; a vehicle body supported by the traveling apparatus on ground; a variable traveling power supply apparatus configured to supply rotational drive power to the traveling apparatus; a travel operation interface configured to adjust a rate of the rotational drive power; a parking brake provided for a transmission shaft of the variable traveling power supply apparatus; a rotation detector configured to detect rotation of the traveling apparatus or the transmission shaft; and a controller configured or programmed to: control the parking brake to a braking state or a non-braking state by a parking brake control module; manage the braking state or the non-braking state as a vehicle body state by a condition management module, the braking state and the non-braking state being operating states of the parking brake.
    Type: Application
    Filed: November 17, 2021
    Publication date: October 6, 2022
    Inventors: Yasuhiro Manji, Nozomu Akiyama
  • Patent number: 11461595
    Abstract: An image processing apparatus includes: an object detection section that performs convolution computation on an input image based on a captured image obtained by capturing the image with a camera, and that detects an object; a feature map validation section that performs feature map validation validating a likelihood that the input image contains the object on the basis of a feature map obtained by the convolution computation; a time series validation section that performs time series validation validating a result of the feature map validation performed by the feature map validation section in time series; and a detection result correction section that corrects a detection result about the object output by the object detection section on the basis of a result of the time series validation performed by the time series validation section.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: October 4, 2022
    Assignee: CLARION CO., LTD.
    Inventors: Yasuhiro Akiyama, Koichi Hamada
  • Patent number: 11459264
    Abstract: Provided is a method of manufacturing a glass film, including: a conveying step of conveying an elongated glass film (G) along a longitudinal direction thereof; and a cutting step of irradiating the glass film (G) with a laser beam (L) from a laser irradiation apparatus (19) while conveying the glass film (G) through the conveying step, to thereby separate the glass film (G). The cutting step includes generating a thread-like peeled material (Ge) in a helical shape from an end portion of the separated glass film (G) in a width direction. The thread-like peeled material (Ge) has a width (W) of 180 ?m or more and 300 ?m or less. In addition, the thread-like peeled material (Ge) has a helical diameter (D) of 80 mm or more and 200 mm or less.
    Type: Grant
    Filed: January 29, 2018
    Date of Patent: October 4, 2022
    Assignee: NIPPON ELECTRIC GLASS CO., LTD.
    Inventors: Hiroki Mori, Koichi Mori, Shuji Akiyama, Yasuhiro Uemura, Naoyuki Matsumoto
  • Patent number: 11451211
    Abstract: A gallium nitride structure that includes: a substrate; a gallium nitride layer opposed to the substrate and containing gallium nitride as a main component thereof; and a first electrode between the gallium nitride layer and the substrate. The first electrode includes at least one hafnium layer containing a single metal of hafnium as a main component thereof, and the at least one hafnium layer is in contact with the gallium nitride layer.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: September 20, 2022
    Assignees: MURATA MANUFACTURING CO., LTD., NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: Keiichi Umeda, Takaaki Mizuno, Yasuhiro Aida, Masato Uehara, Toshimi Nagase, Morito Akiyama
  • Patent number: 11429046
    Abstract: A rotatable endless fixing belt configured to fix a toner image borne on a recording material includes a base body and a polyimide layer. The polyimide layer is formed on an inner-circumferential-surface of the base body and configured to slide on a backup member in contact with the backup member. The polyimide layer includes filler having shape anisotropy. An orientation ratio of the filler inclined with respect to a generating line of the fixing belt by a predetermined angle or less is smaller in a first area than in a second area in a cross section of the fixing belt taken along the generating line of the fixing belt, the first area being an area formed in an inner-circumferential-surface side of the polyimide layer in a thickness direction, the second area being an area formed in a base-body side of the polyimide layer in the thickness direction.
    Type: Grant
    Filed: August 27, 2021
    Date of Patent: August 30, 2022
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Akeshi Asaka, Naoki Akiyama, Hiroto Sugimoto, Hiroki Muramatsu, Yasuhiro Miyahara, Noriaki Kobayashi
  • Patent number: 11339969
    Abstract: Adhesion of particulate matters to the burner accompanying combustion in a lean-combustion gas turbine combustor is suppressed, and the structural reliability is improved. In a gas turbine combustor including: a tubular liner that forms a combustion chamber; and a burner including an air hole plate that is arranged at an inlet of the liner and includes a plurality of air holes for guiding compressed air to the combustion chamber, and a plurality of fuel nozzles that are arranged on a side opposite to the combustion chamber with the air hole plate being sandwiched therebetween, the plurality of fuel nozzles each injecting a fuel toward a corresponding air hole, the air holes and the fuel nozzles forming a plurality of concentric annular lines, a plurality of small holes having opening diameters smaller than those of the air holes are provided through the air hole plate such that the plurality of small holes are positioned in an inner area of an innermost annular line of the air holes.
    Type: Grant
    Filed: September 29, 2020
    Date of Patent: May 24, 2022
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Tomohiro Asai, Shohei Yoshida, Yoshitaka Hirata, Akinori Hayashi, Yasuhiro Akiyama
  • Publication number: 20220134428
    Abstract: In order to stably produce a structured article made of a metal with a complex shape, such as a turbine stator blade, while securing a sufficient mechanical strength, there is provided a method for manufacturing a cobalt-based alloy structure, the cobalt-based alloy structure including a first structure region comprising a hollow space and a second structure region filled in the hollow space. The method includes the steps of: forming the first structure region by additive manufacturing from a first cobalt-based alloy powder having a particle size distribution within a range of 5-85 ?m and in D90 within a range of 40-80 ?m; and forming the second structure region in the hollow space by hot isostatic pressing, the hollow space being filled with a second cobalt-based alloy powder with a particle size distribution within a range of 5-85 ?m and in D90 within a range of 40-80 ?m.
    Type: Application
    Filed: August 31, 2021
    Publication date: May 5, 2022
    Applicant: MITSUBISHI POWER, LTD.
    Inventors: Yasuhiro AKIYAMA, Takashi SHIBAYAMA, Shinya IMANO
  • Patent number: 11215364
    Abstract: A combustor includes: a first cylindrical body which is configured to hold a fuel nozzle extending in an axial line direction and through which air flows toward a downstream side thereof; a second cylindrical body that is connected to a downstream side of the first cylindrical body; and an outer shell that has an inner peripheral surface configured to define an air introduction channel through which air is introduced such that the air reverses course at an upstream end of the first cylindrical body and flows toward the downstream side together with an outer peripheral surface of the first cylindrical body. The inner peripheral surface has an outside narrowing surface that is formed to extend inward in a radial direction toward the upstream end of the first cylindrical body.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: January 4, 2022
    Assignee: MITSUBISHI POWER, LTD.
    Inventors: Kenji Miyamoto, Satoshi Takiguchi, Koichi Nishida, Yoshitaka Hirata, Shohei Numata, Keita Yunoki, Yasuhiro Akiyama, Tomoki Uruno
  • Publication number: 20210381084
    Abstract: There is provided a cobalt-based alloy product comprising: in mass %, 0.08-0.25% C; more than 0.04% and 0.2% or less N, the total amount of C and N being more than 0.12% and 0.28% or less; 0.1% or less B; 10-30% Cr; 5% or less Fe and 30% or less Ni, the total amount of Fe and Ni being 30% or less; W and/or Mo, the total amount of W and Mo being 5-12%; 0.5% or less Si; 0.5% or less Mn; 0.5 to 2 mass % of an M component being a transition metal other than W and Mo and having an atomic radius of more than 130 pm; and the balance being Co and impurities. The product comprises matrix phase crystal grains, in which particles of MC carbides, M(C,N) carbonitrides and/or MN nitrides including the M component are precipitated at an average interparticle distance of 0.13-2 ?m.
    Type: Application
    Filed: September 4, 2020
    Publication date: December 9, 2021
    Applicant: MITSUBISHI POWER, LTD.
    Inventors: Atsuo OTA, Shinya IMANO, Yuting WANG, Yasuhiro AKIYAMA
  • Patent number: 11109843
    Abstract: Alignment of an ultrasonograph and volume data obtained beforehand is correctly performed without requiring a user to perform complicated operation. First volume data for an ultrasonograph and second volume data obtained by another imaging apparatus are received and aligned. A predetermined imaging part selected from a plurality of imaging parts of a subject is received from a user. The second volume data are initially rotated by a rotation angle corresponding to the imaging part received by the receptor, and alignment of the initially rotated second volume data and the first volume data after is further carried out.
    Type: Grant
    Filed: November 27, 2015
    Date of Patent: September 7, 2021
    Assignee: HITACHI, LTD.
    Inventors: Zisheng Li, Tsuneya Kurihara, Yasuhiro Akiyama
  • Publication number: 20210095849
    Abstract: To suppress occurrence of combustion oscillation in a lean-combustion gas turbine combustor, and to improve the structural reliability. In a gas turbine combustor including: a tubular liner that forms a combustion chamber; and a burner having an air hole plate that is arranged at an inlet of the liner and that is provided with a plurality of air holes for guiding compressed air to the combustion chamber, and a plurality of fuel nozzles arranged on a side opposite to the combustion chamber with the air hole plate being sandwiched therebetween, the plurality of fuel nozzles each injecting a fuel toward a corresponding air hole, the air holes and the fuel nozzles forming a plurality of concentric annular lines, an orifice is provided on a fuel flow passage of each of the plurality of fuel nozzles, the plurality of fuel nozzles are grouped into a plurality of nozzle groups, and axial positions of the orifices are different between the nozzle groups.
    Type: Application
    Filed: September 29, 2020
    Publication date: April 1, 2021
    Inventors: Tomohiro ASAI, Shohei YOSHIDA, Yoshitaka HIRATA, Yasuhiro AKIYAMA
  • Publication number: 20210095599
    Abstract: A hydrogen content fuel can be stably ignited using a gaseous fuel that does not contain hydrogen and dispersibility of the hydrogen content fuel is enhanced. A gas turbine combustor including a burner including: a startup fuel pipe in which a startup fuel circulates; a first main fuel pipe in which a main fuel circulates, a second main fuel pipe in which the main fuel circulates; a fuel mixer to which the startup fuel pipe and the first main fuel pipe are connected; an inner fuel nozzle to which the fuel mixer is connected; a plurality of outer fuel nozzles to which the second main fuel pipe is connected; a startup fuel control valve provided in the startup fuel pipe; a first fuel control valve provided in the first main fuel pipe; and a second fuel control valve provided in the second main fuel pipe.
    Type: Application
    Filed: September 29, 2020
    Publication date: April 1, 2021
    Inventors: Tomohiro ASAI, Shohei YOSHIDA, Yoshitaka HIRATA, Akinori HAYASHI, Yasuhiro AKIYAMA, Yoshinori MATSUBARA
  • Publication number: 20210095850
    Abstract: Adhesion of particulate matters to the burner accompanying combustion in a lean-combustion gas turbine combustor is suppressed, and the structural reliability is improved. In a gas turbine combustor including: a tubular liner that forms a combustion chamber; and a burner including an air hole plate that is arranged at an inlet of the liner and includes a plurality of air holes for guiding compressed air to the combustion chamber, and a plurality of fuel nozzles that are arranged on a side opposite to the combustion chamber with the air hole plate being sandwiched therebetween, the plurality of fuel nozzles each injecting a fuel toward a corresponding air hole, the air holes and the fuel nozzles forming a plurality of concentric annular lines, a plurality of small holes having opening diameters smaller than those of the air holes are provided through the air hole plate such that the plurality of small holes are positioned in an inner area of an innermost annular line of the air holes.
    Type: Application
    Filed: September 29, 2020
    Publication date: April 1, 2021
    Inventors: Tomohiro ASAI, Shohei YOSHIDA, Yoshitaka HIRATA, Akinori HAYASHI, Yasuhiro AKIYAMA
  • Patent number: 10956757
    Abstract: An image processing device includes: a road surface detecting section to detect a road surface region from an input image based on a shot image obtained by shooting with a camera; a time-series verifying section to perform time-series verification to verify a result of detection of the road surface region in the input image in a time-series manner; a detection region selecting section to set a detection region for detection of an object in the input image according to the result of detection of the road surface region by the road surface detecting section and a result of the time-series verification by the time-series verifying section; and a detecting section to detect the object in the detection region.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: March 23, 2021
    Assignee: Clarion Co., Ltd.
    Inventors: Yasuhiro Akiyama, Yasusi Kanada, Koichi Hamada
  • Patent number: 10794296
    Abstract: The gas turbine combustor and the operation method thereof are designed to minimize visualization of exhaust gas from the gas turbine upon switching of the gas turbine fuel from the oil fuel to the gas fuel. Upon switching of the combustion by the pilot burner from the oil burning to the gas burning, the gas fuel is supplied to the main burners so as to start the gas burning. Then the gas fuel is supplied to the pilot burner to start the gas burning.
    Type: Grant
    Filed: October 23, 2017
    Date of Patent: October 6, 2020
    Assignee: Mitsubishi Hitachi Power Systems, Ltd.
    Inventors: Yasuhiro Akiyama, Mitsuhiro Karishuku, Keita Naito, Kanetsugu Nakamura, Satoshi Dodo, Tomohiro Asai, Yoshitaka Hirata, Akinori Hayashi
  • Patent number: 10755384
    Abstract: The objective of the present invention is to provide an object detection method such that an object such as a vehicle can be detected from an image captured by an on-board camera even when a lens of the on-board camera is dirty. In order to achieve the objective, in this object detection method for detecting an object included in a captured image, an original image including the object to be detected is prepared from the captured image, a processed image is generated from the prepared original image by applying predetermined processing to the original image, and learning regarding restoration of an image of the object to be detected is performed using the original image and the processed image.
    Type: Grant
    Filed: November 2, 2016
    Date of Patent: August 25, 2020
    Assignee: Clarion Co., Ltd.
    Inventors: Yasuhiro Akiyama, Koichi Hamada, Yoshitaka Uchida, Takehito Ogata
  • Publication number: 20200072466
    Abstract: The present invention provides a gas turbine combustor which reduces NOx emissions for a hydrogen-containing fuel, is improved in reliability and realizes stable operation. The gas turbine combustor of the present invention includes a combustion chamber which burns a fuel and air, an air hole plate which is located on an upstream side of the combustion chamber and has air holes which are concentrically arranged plurally in line and plurally in number, and fuel nozzles which are arranged plurally in line and plurally in number, and a fuel nozzle inner wall has a fuel nozzle tapered shape which extends in an outer circumferential direction on a leading end part of the fuel nozzle.
    Type: Application
    Filed: August 6, 2019
    Publication date: March 5, 2020
    Inventors: Yasuhiro AKIYAMA, Yuki KAMIKAWA, Tomohiro ASAI, Mitsuhiro KARISHUKU, Tatsuya HAGITA, Yoshinori MATSUBARA
  • Patent number: 10571127
    Abstract: The gas turbine combustor includes a swirler lip on the air hole plate periphery, protruding toward a chamber, and a spring seal in an area for fitting the liner and the plate/lip. The spring seal has an air hole for passage of part of the combustion air introduced in the gap between the outer periphery of the air hole plate and the liner. The swirler lip has an air hole which introduces part of the combustion air passing through the spring seal air hole into the chamber. The liner has an air hole facing the spring seal air hole, to introduce part of air from outside the liner into the gap between the outer periphery of the air hole plate and the liner. A turn guide for rectifying a combustion air flow is provided at the liner end portion on the side for fitting the liner and air hole plate.
    Type: Grant
    Filed: October 23, 2017
    Date of Patent: February 25, 2020
    Assignee: Mitsubishi Hitachi Power Sytems, Ltd.
    Inventors: Keisuke Miura, Yasuhiro Akiyama, Tomohiro Asai, Kazuki Abe, Mitsuhiro Karishuku, Satoshi Dodo, Akinori Hayashi, Yoshitaka Hirata, Noboru Okuyama
  • Publication number: 20190370609
    Abstract: An image processing apparatus includes: an object detection section that performs convolution computation on an input image based on a captured image obtained by capturing the image with a camera, and that detects an object; a feature map validation section that performs feature map validation validating a likelihood that the input image contains the object on the basis of a feature map obtained by the convolution computation; a time series validation section that performs time series validation validating a result of the feature map validation performed by the feature map validation section in time series; and a detection result correction section that corrects a detection result about the object output by the object detection section on the basis of a result of the time series validation performed by the time series validation section.
    Type: Application
    Filed: December 13, 2017
    Publication date: December 5, 2019
    Applicant: CLARION CO., LTD.
    Inventors: Yasuhiro AKIYAMA, Koichi HAMADA