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).
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Patent number: 11879822Abstract: 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: GrantFiled: May 27, 2019Date of Patent: January 23, 2024Assignee: HORIBA, LTD.Inventors: Hisashi Akiyama, Tetsuya Mori, Eiichi Nagaoka
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Publication number: 20230384160Abstract: 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: ApplicationFiled: September 16, 2021Publication date: November 30, 2023Inventor: HISASHI AKIYAMA
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Patent number: 11777466Abstract: 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: GrantFiled: June 9, 2021Date of Patent: October 3, 2023Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Hisashi Akiyama, Kenichi Ishizuka
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Publication number: 20230031081Abstract: 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: ApplicationFiled: December 11, 2020Publication date: February 2, 2023Applicant: SONY SEMICONDUCTOR SOLUTIONS CORPORATIONInventor: Hisashi AKIYAMA
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Patent number: 11545953Abstract: 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: GrantFiled: July 9, 2021Date of Patent: January 3, 2023Assignee: MURATA MANUFACTURING CO., LTD.Inventor: Hisashi Akiyama
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Patent number: 11448579Abstract: 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: GrantFiled: May 27, 2019Date of Patent: September 20, 2022Assignee: HORIBA, LTD.Inventors: Tetsuya Mori, Hisashi Akiyama, Makoto Nagura
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Publication number: 20220026330Abstract: 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: ApplicationFiled: October 15, 2019Publication date: January 27, 2022Inventors: Hisashi AKIYAMA, Yasuhiro TATEWAKI, Yohei OKA, Takeshi AKAMATSU, Makoto NAGURA, Takashi KIMBA
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Publication number: 20210351217Abstract: 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: ApplicationFiled: June 14, 2019Publication date: November 11, 2021Inventor: HISASHI AKIYAMA
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Publication number: 20210349007Abstract: 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: ApplicationFiled: July 5, 2019Publication date: November 11, 2021Inventors: Hiroyuki KOSHIKAWA, Hisashi AKIYAMA, Tetsuya MORI, Kosuke MATSUO, Hitoshi NAKATANI, Toshihiro KATSUDA
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Publication number: 20210336598Abstract: 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: ApplicationFiled: July 9, 2021Publication date: October 28, 2021Inventor: Hisashi AKIYAMA
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Publication number: 20210310926Abstract: 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: ApplicationFiled: May 27, 2019Publication date: October 7, 2021Inventors: Tetsuya MORI, Hisashi AKIYAMA, Makoto NAGURA
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Publication number: 20210297052Abstract: 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: ApplicationFiled: June 9, 2021Publication date: September 23, 2021Inventors: Hisashi AKIYAMA, Kenichi ISHIZUKA
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Patent number: 11095265Abstract: 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: GrantFiled: March 27, 2020Date of Patent: August 17, 2021Assignee: MURATA MANUFACTURING CO., LTD.Inventor: Hisashi Akiyama
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Publication number: 20210208048Abstract: 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: ApplicationFiled: May 27, 2019Publication date: July 8, 2021Inventors: Hisashi AKIYAMA, Tetsuya MORI, Eiichi NAGAOKA
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Patent number: 10823688Abstract: 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: GrantFiled: November 28, 2017Date of Patent: November 3, 2020Assignee: HORIBA, LTD.Inventors: Hisashi Akiyama, Kusuo Ueno, Takeshi Akamatsu
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Publication number: 20200228086Abstract: 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: ApplicationFiled: March 27, 2020Publication date: July 16, 2020Inventor: Hisashi AKIYAMA
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Publication number: 20190317032Abstract: 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: ApplicationFiled: November 28, 2017Publication date: October 17, 2019Inventors: Hisashi AKIYAMA, Kusuo UENO, Takeshi AKAMATSU
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Patent number: 10263324Abstract: 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: GrantFiled: July 28, 2017Date of Patent: April 16, 2019Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Hisashi Akiyama, Kenichi Ishizuka
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Patent number: 10038864Abstract: 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: GrantFiled: January 16, 2015Date of Patent: July 31, 2018Assignee: SONY CORPORATIONInventor: Hisashi Akiyama
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Publication number: 20170324158Abstract: 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: ApplicationFiled: July 28, 2017Publication date: November 9, 2017Inventors: Hisashi AKIYAMA, Kenichi ISHIZUKA