Patents by Inventor Hisashi Akiyama

Hisashi 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).

  • Publication number: 20240170514
    Abstract: The present disclosure relates to a solid-state imaging element and electronic apparatus that achieve image capturing with better image quality. A solid-state imaging element includes a semiconductor substrate in which a photoelectric conversion element is provided for each pixel, a filter layer stacked on a light-receiving surface side of the semiconductor substrate, and a plasmon filter disposed in the filter layer of at least some red pixels of a plurality of the red pixels that receives light in a red wavelength region, the plasmon filter including a plasmon resonator having a predetermined periodic pattern. Then, in the plasmon filter, a pitch of the pattern is corrected according to a position at which the red pixel is disposed. The present technology can be applied to, for example, an imaging element package.
    Type: Application
    Filed: January 18, 2022
    Publication date: May 23, 2024
    Inventor: HISASHI AKIYAMA
  • Patent number: 11879822
    Abstract: To enable the particle size distribution of a measurement target to be accurately measured regardless of the presence of a particle which is similar in shape to the measurement target and which is not the measurement target, a particle size distribution measuring device includes an image processing unit that receives image data obtained by capturing an image of a particle group including a first particle and a second particle of a type different from the first particle, at least the first particle being translucent; and a particle discriminating unit that discriminates whether a particle depicted in the image is the first particle or the second particle on the basis of light and dark regions that appear as a result of refraction of light passing through the particle.
    Type: Grant
    Filed: May 27, 2019
    Date of Patent: January 23, 2024
    Assignee: HORIBA, LTD.
    Inventors: Hisashi Akiyama, Tetsuya Mori, Eiichi Nagaoka
  • Publication number: 20230384160
    Abstract: A light receiving device according to an embodiment of the present disclosure includes a plurality of photoelectric conversion element units. Each of the photoelectric conversion element units includes a plurality of photoelectric conversion elements, the photoelectric conversion elements being M×N in total number, with M photoelectric conversion elements arranged in a first direction, and N photoelectric conversion elements arranged in a second direction. Each of the photoelectric conversion elements includes a quarter wavelength layer, a wire grid polarizer, and a photoelectric conversion section that are disposed in this order from a light entrance side. The M photoelectric conversion elements disposed side by side along the first direction include the quarter wavelength layers that have the same fast axis orientation. The N photoelectric conversion elements disposed side by side along the second direction include the quarter wavelength layers that have different fast axis orientations.
    Type: Application
    Filed: September 16, 2021
    Publication date: November 30, 2023
    Inventor: HISASHI AKIYAMA
  • Patent number: 11777466
    Abstract: A matching circuit includes first and second input/output ports; first, second, and third coils; and a capacitor. The first coil is connected in series between the first and second input/output ports, and the second coil is connected in shunt between a ground and an input/output line between the first and second input/output ports. The first and second coils are magnetically coupled to each other, the third coil is magnetically coupled to at least one of the first and second coils, the capacitor is directly or indirectly connected to the third coil, and a closed circuit including the capacitor and the third coil is provided.
    Type: Grant
    Filed: June 9, 2021
    Date of Patent: October 3, 2023
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Hisashi Akiyama, Kenichi Ishizuka
  • Publication number: 20230031081
    Abstract: A light receiving element of the present disclosure includes a wire grid polarizing element, wavelength selection means, and a photoelectric conversion portion from a light incident side, and the wavelength selection means includes a plurality of wavelength selection members, and the wavelength selection members constituted by a plasmon filter transmit light having different wavelengths.
    Type: Application
    Filed: December 11, 2020
    Publication date: February 2, 2023
    Applicant: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventor: Hisashi AKIYAMA
  • Patent number: 11545953
    Abstract: A matching circuit includes first and second ports, an autotransformer, and first and second capacitors. The autotransformer includes a first terminal coupled to a first port, a second terminal coupled to a second port, and a common terminal coupled to a reference potential, and includes a series parasitic inductor and a parallel parasitic inductor. The first capacitor is coupled in shunt to the second terminal, and defines a low pass filter together with the series parasitic inductor. The second capacitor is coupled in series between the first port and the first terminal, and defines a high pass filter together with the parallel parasitic inductor.
    Type: Grant
    Filed: July 9, 2021
    Date of Patent: January 3, 2023
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Hisashi Akiyama
  • Patent number: 11448579
    Abstract: A particle size distribution measuring device includes an actual spectrum obtaining unit obtaining an actual spectrum which is a light intensity spectrum; a non-target spectrum calculating unit that receives non-target particle size distribution data indicating a particle size distribution of a non-target particle group which is not a measurement target and which is accommodated in the cell and that calculates, on the basis of the non-target particle size distribution data, a non-target spectrum which is a light intensity spectrum to be obtained by irradiating the non-target particle group with light; a non-target spectrum removing unit that calculates a target spectrum which is a light intensity spectrum obtained by subtracting an influence of the non-target spectrum from the actual spectrum; and a target particle size distribution calculating unit that calculates the particle size distribution of the particle group which is the measurement target on the basis of the target spectrum.
    Type: Grant
    Filed: May 27, 2019
    Date of Patent: September 20, 2022
    Assignee: HORIBA, LTD.
    Inventors: Tetsuya Mori, Hisashi Akiyama, Makoto Nagura
  • Publication number: 20220026330
    Abstract: A complex particle measurement apparatus comprising a first light source that irradiates a first storage cell; a photodetector that detects intensity of light; a second light source that irradiates a second storage cell; an imaging unit that images a particle group; an image data output unit that outputs image data; a supporter that supports the first storage cell and the second storage cell; and a communication pipe that connects the first storage cell and the second storage cell to pass a sample solution, wherein the first storage cell and the second storage cell have bottom surfaces located at positions different from each other, and the communication pipe is laid such that a channel from the first storage cell to the second storage cell has an incline of not less than 0 or not more than 0.
    Type: Application
    Filed: October 15, 2019
    Publication date: January 27, 2022
    Inventors: Hisashi AKIYAMA, Yasuhiro TATEWAKI, Yohei OKA, Takeshi AKAMATSU, Makoto NAGURA, Takashi KIMBA
  • Publication number: 20210349007
    Abstract: In relation to application of artificial intelligence to image analysis of particles, to make it possible to provide data for machine learning corresponding to user demands while making it possible to reduce, as much as possible, man-hours taken to, for example, prepare vast amounts of actual image data obtained by actually capturing images of particles, the present invention generates virtual particle image data, which is image data of a virtual particle, on the basis of a predetermined condition, generates label data corresponding to the virtual particle, and associates the virtual particle image data with the label data.
    Type: Application
    Filed: July 5, 2019
    Publication date: November 11, 2021
    Inventors: Hiroyuki KOSHIKAWA, Hisashi AKIYAMA, Tetsuya MORI, Kosuke MATSUO, Hitoshi NAKATANI, Toshihiro KATSUDA
  • Publication number: 20210351217
    Abstract: A light receiving device includes plural photoelectric conversion element units 10A each including plural photoelectric conversion elements. Each of the photoelectric conversion elements 11 constituting the respective photoelectric conversion element units 10A includes a quarter wavelength layer 60, a wire grid polarizer 50, and a photoelectric conversion section 21 disposed in this order from a light entrance side.
    Type: Application
    Filed: June 14, 2019
    Publication date: November 11, 2021
    Inventor: HISASHI AKIYAMA
  • Publication number: 20210336598
    Abstract: A matching circuit includes first and second ports, an autotransformer, and first and second capacitors. The autotransformer includes a first terminal coupled to a first port, a second terminal coupled to a second port, and a common terminal coupled to a reference potential, and includes a series parasitic inductor and a parallel parasitic inductor. The first capacitor is coupled in shunt to the second terminal, and defines a low pass filter together with the series parasitic inductor. The second capacitor is coupled in series between the first port and the first terminal, and defines a high pass filter together with the parallel parasitic inductor.
    Type: Application
    Filed: July 9, 2021
    Publication date: October 28, 2021
    Inventor: Hisashi AKIYAMA
  • Publication number: 20210310926
    Abstract: A particle size distribution measuring device includes an actual spectrum obtaining unit obtaining an actual spectrum which is a light intensity spectrum; a non-target spectrum calculating unit that receives non-target particle size distribution data indicating a particle size distribution of a non-target particle group which is not a measurement target and which is accommodated in the cell and that calculates, on the basis of the non-target particle size distribution data, a non-target spectrum which is a light intensity spectrum to be obtained by irradiating the non-target particle group with light; a non-target spectrum removing unit 23 that calculates a target spectrum which is a light intensity spectrum obtained by subtracting an influence of the non-target spectrum from the actual spectrum; and a target particle size distribution calculating unit that calculates the particle size distribution of the particle group which is the measurement target on the basis of the target spectrum.
    Type: Application
    Filed: May 27, 2019
    Publication date: October 7, 2021
    Inventors: Tetsuya MORI, Hisashi AKIYAMA, Makoto NAGURA
  • Publication number: 20210297052
    Abstract: A matching circuit includes first and second input/output ports; first, second, and third coils; and a capacitor. The first coil is connected in series between the first and second input/output ports, and the second coil is connected in shunt between a ground and an input/output line between the first and second input/output ports. The first and second coils are magnetically coupled to each other, the third coil is magnetically coupled to at least one of the first and second coils, the capacitor is directly or indirectly connected to the third coil, and a closed circuit including the capacitor and the third coil is provided.
    Type: Application
    Filed: June 9, 2021
    Publication date: September 23, 2021
    Inventors: Hisashi AKIYAMA, Kenichi ISHIZUKA
  • Patent number: 11095265
    Abstract: A matching circuit includes first and second ports, an autotransformer, and first and second capacitors. The autotransformer includes a first terminal coupled to a first port, a second terminal coupled to a second port, and a common terminal coupled to a reference potential, and includes a series parasitic inductor and a parallel parasitic inductor. The first capacitor is coupled in shunt to the second terminal, and defines a low pass filter together with the series parasitic inductor. The second capacitor is coupled in series between the first port and the first terminal, and defines a high pass filter together with the parallel parasitic inductor.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: August 17, 2021
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Hisashi Akiyama
  • Publication number: 20210208048
    Abstract: To enable the particle size distribution of a measurement target to be accurately measured regardless of the presence of a particle which is similar in shape to the measurement target and which is not the measurement target, a particle size distribution measuring device includes an image processing unit that receives image data obtained by capturing an image of a particle group including a first particle and a second particle of a type different from the first particle, at least the first particle being translucent; and a particle discriminating unit that discriminates whether a particle depicted in the image is the first particle or the second particle on the basis of light and dark regions that appear as a result of refraction of light passing through the particle.
    Type: Application
    Filed: May 27, 2019
    Publication date: July 8, 2021
    Inventors: Hisashi AKIYAMA, Tetsuya MORI, Eiichi NAGAOKA
  • Patent number: 10823688
    Abstract: The radiation detection device is equipped with a sample holding unit; an irradiation unit for irradiating a sample held on the sample holding unit with radiations; a detection unit for detecting the radiations generated from the sample; an illumination unit for irradiating the sample with light; an observation unit for observing the sample; and a light transmitting plate for allowing the light from the illumination unit, with which the sample held on the sample holding unit is irradiated, to be transmitted therethrough. The light transmitting plate is disposed at a position between the sample holding unit and the irradiation unit, and has an opening portion for allowing the radiations from the irradiation unit, with which the sample is irradiated, to pass therethrough and a scattering portion for scattering light.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: November 3, 2020
    Assignee: HORIBA, LTD.
    Inventors: Hisashi Akiyama, Kusuo Ueno, Takeshi Akamatsu
  • Publication number: 20200228086
    Abstract: A matching circuit includes first and second ports, an autotransformer, and first and second capacitors. The autotransformer includes a first terminal coupled to a first port, a second terminal coupled to a second port, and a common terminal coupled to a reference potential, and includes a series parasitic inductor and a parallel parasitic inductor. The first capacitor is coupled in shunt to the second terminal, and defines a low pass filter together with the series parasitic inductor. The second capacitor is coupled in series between the first port and the first terminal, and defines a high pass filter together with the parallel parasitic inductor.
    Type: Application
    Filed: March 27, 2020
    Publication date: July 16, 2020
    Inventor: Hisashi AKIYAMA
  • Publication number: 20190317032
    Abstract: The radiation detection device is equipped with a sample holding unit; an irradiation unit for irradiating a sample held on the sample holding unit with radiations; a detection unit for detecting the radiations generated from the sample; an illumination unit for irradiating the sample with light; an observation unit for observing the sample; and a light transmitting plate for allowing the light from the illumination unit, with which the sample held on the sample holding unit is irradiated, to be transmitted therethrough. The light transmitting plate is disposed at a position between the sample holding unit and the irradiation unit, and has an opening portion for allowing the radiations from the irradiation unit, with which the sample is irradiated, to pass therethrough and a scattering portion for scattering light.
    Type: Application
    Filed: November 28, 2017
    Publication date: October 17, 2019
    Inventors: Hisashi AKIYAMA, Kusuo UENO, Takeshi AKAMATSU
  • Patent number: 10263324
    Abstract: A first end of a first conductor pattern of a first coil conductor is connected to a power supply terminal, and a second end of the first conductor pattern is connected to an antenna terminal. A second conductor pattern includes second coil conductors. A first end of the second conductor pattern is connected to the antenna terminal and the second end of the first conductor pattern, and a second end of the second conductor pattern is connected to a ground terminal. The second conductor pattern magnetically couples with the first conductor pattern. The second end of the first conductor pattern and the first end of the second conductor pattern are connected to the antenna terminal via a routing pattern that extends to magnetically couple with at least either the first conductor pattern or the second conductor pattern.
    Type: Grant
    Filed: July 28, 2017
    Date of Patent: April 16, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Hisashi Akiyama, Kenichi Ishizuka
  • Patent number: 10038864
    Abstract: A solid-state imaging device including a phase difference pixel that includes a photoelectric conversion unit formed in a semiconductor substrate, a light blocking film that is provided in an insulating layer stacked on the semiconductor substrate, and shields substantially a half of the phase difference pixel from light, with the boundary being the pupil position, and a polarizing structure that polarizes light passing through an opening portion not shielded from light by the light blocking film. The present technology can be applied to solid-state imaging devices capable of image plane phase difference autofocusing, for example.
    Type: Grant
    Filed: January 16, 2015
    Date of Patent: July 31, 2018
    Assignee: SONY CORPORATION
    Inventor: Hisashi Akiyama