Patents by Inventor Hiroshi Akiyama

Hiroshi 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: 12012836
    Abstract: A mining riser pipe is extended from above water toward a water bottom containing water bottom resources, and a lower portion of an insertion pipe connected to a lower portion of the mining riser pipe is inserted into the water bottom. A liquid is supplied into the insertion pipe and a rotation shaft extends axially inside both of pipes is rotated to rotate stirring blades attached to a lower portion of the rotation shaft inside the insertion pipe, thereby drilling and dissolving mud S inside the insertion pipe into a slurry form by is raised to an upper portion of the insertion pipe by a stirring flow generated by the rotation of the stirring blades, and the raised mud is lifted above the water through the mining riser pipe by a lifting force.
    Type: Grant
    Filed: February 8, 2022
    Date of Patent: June 18, 2024
    Assignees: TOA Corporation, Japan Agency for Marine-Earth Science and Technology
    Inventors: Tomohiro Morisawa, Shinya Omori, Ryutaro Murakami, Hiroshi Iida, Eigo Miyazaki, Keita Akiyama, Masanori Kyo, Ikuo Sawada, Yoshihisa Kawamura
  • Patent number: 11999615
    Abstract: An object is to provide a piezoelectric body having a value indicating a higher performance index (d33, e33, C33, g33, and/or k2) than aluminum nitride not doped with any element. The piezoelectric body is represented by a chemical formula Al1-X-YMgXMYN where X+Y is less than 1, X is in a range of more than 0 and less than 1, and Y is in a range of more than 0 and less than 1.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: June 4, 2024
    Assignee: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: Kenji Hirata, Hiroshi Yamada, Masato Uehara, Sri Ayu Anggraini, Morito Akiyama
  • Publication number: 20240175811
    Abstract: An ATR apparatus includes a prism having a reflection surface, a holding unit holding a sample including a suspension on the reflection surface, and an adjustment unit adjusting a fluidal state of the sample held on the reflection surface. The adjustment unit adjusts the fluidal state of the sample to a first fluidal state in order to acquire a first detection result relating to the sample in the first fluidal state and adjusts the fluidal state of the sample to a second fluidal state in order to acquire a second detection result relating to the sample in the second fluidal state.
    Type: Application
    Filed: January 31, 2022
    Publication date: May 30, 2024
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Kazuki HORITA, Kouichiro AKIYAMA, Yoichi KAWADA, Hiroshi SATOZONO
  • Publication number: 20240141769
    Abstract: A mining riser pipe is extended from above water toward a water bottom containing water bottom resources, and a lower portion of an insertion pipe connected to a lower portion of the mining riser pipe is inserted into the water bottom. A liquid is supplied into the insertion pipe and a rotation shaft extends axially inside both of pipes is rotated to rotate stirring blades attached to a lower portion of the rotation shaft inside the insertion pipe, thereby drilling and dissolving mud S inside the insertion pipe into a slurry form is raised to an upper portion of the insertion pipe by a stirring flow generated by the rotation of the stirring blades, and the raised mud is lifted above the water through the mining riser pipe by lifting force.
    Type: Application
    Filed: February 8, 2022
    Publication date: May 2, 2024
    Inventors: Tomohiro MORISAWA, Shinya OMORI, Ryutaro MURAKAMI, Hiroshi IIDA, Eigo MIYAZAKI, Keita AKIYAMA, Masanori KYO, Ikuo SAWADA, Yoshihisa KAWAMURA
  • Publication number: 20240142360
    Abstract: A dispersion stability evaluation method is a method for evaluating a dispersion stability of dispersoid dispersed in a dispersion medium. The dispersion stability evaluation method includes a first step of holding a sample including the dispersion medium and the dispersoid on a reflective surface, and a second step of causing terahertz waves to be incident on the reflective surface from a side opposite to the sample and detecting the terahertz waves reflected by the reflective surface. In the second step, while a state where the dispersoid are allowed to move toward the reflective surface is maintained, a plurality of detection results respectively corresponding to a plurality of times apart from each other are acquired.
    Type: Application
    Filed: March 24, 2022
    Publication date: May 2, 2024
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Kazuhiro TAKAHASHI, Kouichiro AKIYAMA, Hiroshi SATOZONO
  • Patent number: 11968902
    Abstract: There are provided a piezoelectric body of ytterbium-doped aluminum nitride, having a greater piezoelectric coefficient d33 or g33 than those not doped with ytterbium, and a MEMS device using the piezoelectric body. The piezoelectric body is represented by a chemical formula Al1-xYbxN where a value of x is more than 0 and less than 0.37 and having a lattice constant ratio c/a in a range of 1.53 or more and less than 1.6. The piezoelectric body with such a configuration has a greater piezoelectric coefficient d33 or g33 than those not doped with ytterbium.
    Type: Grant
    Filed: November 26, 2019
    Date of Patent: April 23, 2024
    Assignee: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: Masato Uehara, Hiroshi Yamada, Morito Akiyama, Sri Ayu Anggraini, Kenji Hirata
  • Patent number: 11951692
    Abstract: The purpose of the present invention is to provide a fiber-reinforced resin material having minimal directionality of strength as well as excellent productivity, a method and device for manufacturing a fiber-reinforced resin material whereby a molded article is obtained, and a device for inspecting a fiber bundle group. A method for manufacturing a sheet-shaped fiber-reinforced resin material in which a paste (P1) is impregnated between cut fiber bundles (CF), the method for manufacturing a fiber-reinforced resin material including a coating step applying a coating of a paste (P1) on a first sheet (S11) conveyed in a predetermined direction, a cutting step for cutting a long fiber bundle (CF) using a cutter (113A), a scattering step for dispersing the cut fiber bundles (CF) and scattering the cut fiber bundles (CF) on the paste (P1), and an impregnation step for pressing a fiber bundle group (F1) and the paste (P1) on the first sheet (S11) and impregnating the paste (P1) between the fiber bundles (CF).
    Type: Grant
    Filed: January 18, 2023
    Date of Patent: April 9, 2024
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Hiroshi Iwata, Nobuyuki Yamamoto, Hajime Okutsu, Ryuichi Ishikawa, Koichi Akiyama, Takayuki Kobayashi
  • Publication number: 20240099679
    Abstract: According to one embodiment, an X-ray diagnostic apparatus comprising: an arm, a pair of grooved portions, a plurality of rollers, and a plurality of belts. The arm is configured to support an X-ray tube at one end and an X-ray detector at another end and has a shape of an arc. The grooved portions are formed on side surfaces of the arm. The plurality of rollers are configured to run in the grooved portions and slidably support the arm along the arc. Each of the belts passes over at least two of the rollers and at least partially abuts on inner walls of the grooved portions.
    Type: Application
    Filed: September 25, 2023
    Publication date: March 28, 2024
    Applicant: Canon Medical Systems Corporation
    Inventors: Masaki AKIYAMA, Shumpei OHASHI, Hiroshi YOSHIDA, Kensei NARAHARA, Masashi HIRASAWA
  • Publication number: 20240101423
    Abstract: Provided is a scandium-doped aluminum nitride with nitrogen polarity. The nitride material is represented by the chemical formula ScXMYAl1-X-YN. M is at least one or more elements among C, Si, Ge, and Sn, X is greater than 0 and not greater than 0.4, Y is greater than 0 and not greater than 0.2, and X/Y is less than or equal to 5. The nitride material has piezoelectricity with a polarization direction of nitrogen polarity opposite to the direction of thin film growth.
    Type: Application
    Filed: November 24, 2021
    Publication date: March 28, 2024
    Inventors: Sri Ayu Anggraini, Morito AKIYAMA, Masato UEHARA, Hiroshi YAMADA, Kenji HIRATA
  • Publication number: 20240067043
    Abstract: A battery management device to be mounted on an electric vehicle including a driving wheel, a traveling motor configured to generate a driving force for the driving wheel, and a battery configured to store electric power to be consumed by the traveling motor. The battery management device includes a detector configured to detect a state of the battery, and a controller configured to calculate a characteristic value indicating performance of the battery based on an output of the detector, and manage charging and discharging of the battery based on the characteristic value. The controller is configured to, when the characteristic value has deterioration, determine whether the deterioration of the characteristic value is reversible deterioration based on the output of the detector. The controller is configured to, upon determining that the deterioration of the characteristic value is the reversible deterioration, return the characteristic value to a value before the deterioration.
    Type: Application
    Filed: August 16, 2023
    Publication date: February 29, 2024
    Inventors: Toshiyuki ICHIKI, Hiroshi ABE, Hiroshi KUSANO, Daichi AKIYAMA
  • Publication number: 20220299523
    Abstract: A highly sensitive allergen measurement method is provided. A method for detecting an allergen in a sample, comprising: treating a sample with a protease; and detecting presence or absence of an allergen marker in the enzyme-treated sample by analysis that utilizes chromatographic separation. The allergen comprises buckwheat and wheat.
    Type: Application
    Filed: July 9, 2020
    Publication date: September 22, 2022
    Applicants: JAPAN AS REPRESENTED BY DIRECTOR GENERAL OF NATIONAL INSTITUTE OF HEALTH SCIENCES, NISSHIN SEIFUN GROUP INC.
    Inventors: Hiroshi AKIYAMA, Hiroyuki KIKUCHI, Yusuke SEKI, Chisato ARIMOTO
  • Publication number: 20210290437
    Abstract: A photocoagulation apparatus of some embodiment examples stores a first OCT image of a retina. The photocoagulation apparatus performs moving image photography of the retina to which aiming light is being applied, and repeatedly detects an aiming light image from a moving image. The photocoagulation apparatus moves a scan target area to include an aiming light application position. After treatment light application in response to user's instruction, the photocoagulation apparatus applies OCT scanning to the scan target area at a time of reception of the instruction, and constructs a second OCT image from acquired data. The photocoagulation apparatus compares the first and second OCT images to acquire change information representing a tissue change caused by the treatment light, and displays a change image based on the change information together with a retinal image.
    Type: Application
    Filed: June 6, 2019
    Publication date: September 23, 2021
    Applicant: Topcon Corporation
    Inventor: Hiroshi AKIYAMA
  • Publication number: 20210267801
    Abstract: A photocoagulation apparatus of some embodiment examples is configured to apply both treatment light for subthreshold coagulation and an OCT scan to a retina via a probe inserted in an eye. Upon receiving a user's instruction, the apparatus applies the treatment light to the retina, and applies an OCT scan to the retina at least after the treatment light application. The apparatus compares the first OCT image constructed from OCT data of the retina acquired prior to the treatment light application and the second OCT image constructed from OCT data of the retina acquired after the treatment light application, thereby acquiring change information that represents a tissue change in the retina caused by the treatment light. The apparatus displays a change image based on the change information together with a retinal image.
    Type: Application
    Filed: June 6, 2019
    Publication date: September 2, 2021
    Applicant: Topcon Corporation
    Inventor: Hiroshi AKIYAMA
  • Publication number: 20200266643
    Abstract: A dual port charging architecture is generally disclosed. For example, the dual charging architecture may include a first board portion having a first battery port configured to be coupled to a first set of battery terminals of a battery, a second board portion having a second battery port configured to be coupled to a second set of battery terminals of the battery, a connection portion electrically coupled between the first board portion and the second board portion, a first power path coupling a power input port of the second board portion to the first battery port via the connection portion, and a second power path coupling the power input port to the second battery port.
    Type: Application
    Filed: February 13, 2020
    Publication date: August 20, 2020
    Inventors: Zhen Ning LOW, Hiroshi AKIYAMA, Todd Robert SUTTON, Haoyan LI, Jonathan LUTY
  • Patent number: 10306188
    Abstract: A photographic image exchange system includes an imaging device having an imager that performs imaging, a communicator that performs communication with a server, and a controller that controls the communicator such that an image that includes a registered target among images captured by the imager is transmitted to the server, and the server provides the image received from the imaging device to a device used by a user who is related to the registration.
    Type: Grant
    Filed: June 9, 2015
    Date of Patent: May 28, 2019
    Assignee: Honda Motor Co., Ltd.
    Inventors: Tamotsu Kawamura, Kotaro Shigeno, Hiroshi Akiyama, Masaki Negoro, Yoshinori Matsuo, Naoki Sugimoto, Dennis Clark, John Moon
  • Patent number: 10285585
    Abstract: An ophthalmic surgical apparatus includes an observation optical system, an illumination optical system, an interference optical system, and an image forming unit. The observation optical system is configured to observe an eye through an objective lens. The illumination optical system is configured to illuminate the eye through the objective lens. The interference optical system includes a reference optical path and a signal optical path which leads to the eye through the deflecting member located between the objective lens and the eye, and is configured to detect interference light based on light having passed through the signal optical path and returning from the eye and the reference light having passed through the reference optical path. The image forming unit forms an image of the eye based on a detection result obtained by the interference optical system.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: May 14, 2019
    Assignee: KABUSHIKI KAISHA TOPCON
    Inventors: Michiko Nakanishi, Takefumi Hayashi, Hiroshi Akiyama, Masahiro Akiba, Makoto Fujino
  • Publication number: 20180123385
    Abstract: A method of enabling a battery hot swap in a mobile device includes detecting when a removable first battery will be removed. The removable first battery may power the mobile device. The method includes reducing a system current to a predetermined level in response to the detecting. The method may further include sourcing current from a second battery when the removable first battery is removed.
    Type: Application
    Filed: May 1, 2017
    Publication date: May 3, 2018
    Inventors: Hiroshi AKIYAMA, Eric MIKUTEIT, Hardik PATEL, Todd SUTTON
  • Patent number: 9949635
    Abstract: An ophthalmic surgical apparatus includes an observation optical system, an illumination optical system, an interference optical system, and an image forming unit. The observation optical system is configured to observe an eye through an objective lens. The illumination optical system is configured to illuminate the eye through the objective lens. The interference optical system includes a reference optical path and a signal optical path which leads to the eye through the deflecting member located between the objective lens and the eye, and is configured to detect interference light based on light having passed through the signal optical path and returning from the eye and the reference light having passed through the reference optical path. The image forming unit forms an image of the eye based on a detection result obtained by the interference optical system.
    Type: Grant
    Filed: February 23, 2015
    Date of Patent: April 24, 2018
    Assignee: KABUSHIKI KAISHA TOPCON
    Inventors: Michiko Nakanishi, Takefumi Hayashi, Hiroshi Akiyama, Masahiro Akiba, Makoto Fujino
  • Publication number: 20180055352
    Abstract: An ophthalmic surgical apparatus includes an observation optical system, an illumination optical system, an interference optical system, and an image forming unit. The observation optical system is configured to observe an eye through an objective lens. The illumination optical system is configured to illuminate the eye through the objective lens. The interference optical system includes a reference optical path and a signal optical path which leads to the eye through the deflecting member located between the objective lens and the eye, and is configured to detect interference light based on light having passed through the signal optical path and returning from the eye and the reference light having passed through the reference optical path. The image forming unit forms an image of the eye based on a detection result obtained by the interference optical system.
    Type: Application
    Filed: October 24, 2017
    Publication date: March 1, 2018
    Applicant: KABUSHIKI KAISHA TOPCON
    Inventors: Michiko NAKANISHI, Takefumi Hayashi, Hiroshi Akiyama, Masahiro Akiba, Makoto Fujino
  • Patent number: 9717408
    Abstract: An ophthalmologic imaging apparatus includes: a first optical system that applies an accommodation stimulus to a subject's eye; a tomographic image forming unit that includes a second optical system that splits light from a light source into signal light and reference light, and detects interference light between the signal light having travelled via the subject's eye and the reference light, and creates a tomographic image of the subject's eye based on a detection result of the interference light; and an analyzer that compares a first tomographic image with a second tomographic image to acquire change information indicating a change in a tissue of the subject's eye due to an accommodation stimulus change. The first and second tomographic images are respectively created by the tomographic image forming unit for the subject's eye, to which first and second accommodation stimuli are respectively applied by the first and second optical systems.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: August 1, 2017
    Assignee: KABUSHIKI KAISHA TOPCON
    Inventors: Masahiro Akiba, Yasufumi Fukuma, Hiroshi Akiyama, Hisashi Tsukada, Eiichi Yanagi