Patents by Inventor Takashi Doi
Takashi Doi 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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Publication number: 20250034735Abstract: A hydrogen production system includes a hydrogen generation device to generate hydrogen, and a compressor to compress the hydrogen. The hydrogen generation device and the compressor are connected by a first line. The compressor and a hydrogen utilization equipment to utilize the hydrogen compressed by the compressor are connected by a second line. A hydrogen storage unit to store the hydrogen compressed by the compressor is connected to the first line by a first bypass line. The first bypass line has a first control valve to control a flow of the hydrogen in the first bypass line.Type: ApplicationFiled: October 14, 2024Publication date: January 30, 2025Inventors: Toshihisa NAKAJIMA, Kota SHIBATA, Yasutoshi DOI, Shota CHATANI, Daichi SAKURAI, Shinji KAWADA, Hideaki OKAWA, Seiichiro WASHINO, Takashi KANEKO
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Publication number: 20240379318Abstract: Provided is a charged particle beam device that can precisely manage a temperature at which a cold field emitter is heated. A charged particle beam device includes: a cold field emitter including a tip having a sharpened distal end, a filament connected to the tip, and an auxiliary electrode covering the filament and having an opening from which the tip protrudes; an extraction electrode to which an extraction voltage for extracting electrons from the cold field emitter is applied; and an acceleration electrode to which an acceleration voltage for accelerating the electrons extracted from the cold field emitter is applied. When the tip and the filament are heated, thermionic electrons emitted from the tip and the filament are collected by the auxiliary electrode to measure a current by applying a positive voltage with respect to the tip to the auxiliary electrode.Type: ApplicationFiled: October 19, 2021Publication date: November 14, 2024Inventors: Keigo KASUYA, Shuhei ISHIKAWA, Kenji TANIMOTO, Shunichi WATANABE, Takashi DOI, Yusuke SAKAI
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Publication number: 20240323480Abstract: According to one embodiment, an image display system includes a source device, a sink device, and an HDMI cable that connects the source device and the sink device. The source device includes a transmitter configured to transmit a plurality of pieces of image data via the HDMI cable. The sink device includes a receiver configured to receive the transmitted plurality of pieces of image data, a storage configured to store the received plurality of pieces of image data, and a display controller configured to execute display control processing of repeatedly displaying the plurality of pieces of image data stored in the storage. The transmitter does not transmit image data while the display control processing is being executed.Type: ApplicationFiled: October 26, 2023Publication date: September 26, 2024Applicant: KABUSHIKI KAISHA TOSHIBAInventor: Takashi DOI
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Patent number: 12066019Abstract: An electric oil pump includes a pump unit, rotating to make oil flow, a motor driving the pump unit, a control unit exerting driving control on the motor, and a housing accommodating the pump unit, the motor, and the motor control unit. In the electric oil pump, the motor control unit directly receives detection information of a temperature sensor detecting a temperature of the oil and exerts driving control on the motor based on the detection information.Type: GrantFiled: July 21, 2022Date of Patent: August 20, 2024Assignee: MIKUNI CORPORATIONInventors: Osamu Miura, Yasuaki Ota, Takashi Doi
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Patent number: 11961704Abstract: There is provided a charged particle beam system having a computer system for controlling an acceleration voltage of a charged particle beam emitted from a charged particle source, the system including: a first diaphragm group having first and second diaphragms which are diaphragms that act on the charged particle beam and have different thicknesses; and a first diaphragm switching mechanism for switching the diaphragm in the first diaphragm group, in which the computer system controls the first diaphragm switching mechanism so as to switch from the first diaphragm to the second diaphragm according to an increase or decrease of the acceleration voltage.Type: GrantFiled: July 2, 2019Date of Patent: April 16, 2024Assignee: Hitachi High-Tech CorporationInventors: Naoki Akimoto, Takashi Doi, Yuzuru Mochizuki
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Publication number: 20240111281Abstract: A deterioration prediction system for a semiconductor manufacturing equipment or a semiconductor inspection equipment, including: an input device receiving, as an input, time series data indicating a state of the equipment; a deterioration prediction device having an estimation unit discriminating fluctuation in the time series data into fluctuation caused by changing setting of the equipment and fluctuation caused by deterioration of the equipment and estimating a time point when the setting is changed, a division unit dividing the time series data into the plurality of periods bounded by the time points, a discrimination unit discriminating at least a trend component from the fluctuation in the time series data in the period, and a prediction unit predicting the deterioration of the equipment based on at least the trend component; and an output device outputting a result of the prediction.Type: ApplicationFiled: October 2, 2023Publication date: April 4, 2024Inventors: Kenji TAMAKI, Wataru KANNO, Takashi DOI, Fumihiro SASAJIMA
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Patent number: 11929230Abstract: A large current electron beam is stably emitted from an electron gun of a charged particle beam device. The electron gun of the charged particle beam device includes: a SE tip 202; a suppressor 303 disposed rearward of a distal end of the SE tip; a cup-shaped extraction electrode 204 including a bottom surface and a cylindrical portion and enclosing the SE tip and the suppressor; and an insulator 208 holding the suppressor and the extraction electrode. A shield electrode 301 of a conductive metal having a cylindrical portion 302 is provided between the suppressor and the cylindrical portion of the extraction electrode. A voltage lower than a voltage of the SE tip is applied to the shield electrode.Type: GrantFiled: April 18, 2019Date of Patent: March 12, 2024Assignee: HITACHI HIGH-TECH CORPORATIONInventors: Keigo Kasuya, Akira Ikegami, Kazuhiro Honda, Masahiro Fukuta, Takashi Doi, Souichi Katagiri, Aki Takei, Soichiro Matsunaga
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Publication number: 20240068080Abstract: A hot-stamped product with improved delayed-fracture resistance is provided. The hot-stamped product 1 includes: a steel substrate 10; and an Al film 20 formed on the steel substrate 10, the Al film 20 including: an interface layer 21 located at the interface with the steel substrate 10 and with part of the ?Fe substituted by Al and Si; an intermediate layer 22 formed on the interface layer 21; and an oxide layer formed on the intermediate layer, the intermediate layer 22 including an Fe—Al—Si phase 22a with part of the ?Fe substituted by Al and Si, the Fe—Al—Si phase 22a including one or more elements selected from the group consisting of Zr, Ce, Y, Ta, Ni, Cu, Nb, Cr, Co, V and Ti, the oxide layer 23 including one or more elements selected from the group consisting of Be, Mg, Ca, Sr, Ba, Sc and Zn.Type: ApplicationFiled: March 14, 2022Publication date: February 29, 2024Inventors: Takashi DOI, Kenji KOBAYASHI, Naomi INATOMI, Yuki SUZUKI, Soshi FUJITA, Masahiro FUDA
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Patent number: 11902617Abstract: According to one embodiment, a source device generates a multistream signal transmitted to a plurality of sink devices which are connected by daisy-chaining and generates the multistream signal by associating daisy chain stage numbers of the sink devices with contents streams for the sink devices.Type: GrantFiled: September 7, 2022Date of Patent: February 13, 2024Assignee: KABUSHIKI KAISHA TOSHIBAInventor: Takashi Doi
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Patent number: 11894211Abstract: The invention provides an electron beam apparatus that reduces a time required for an electron gun chamber to which a sputter ion pump and a non-evaporable getter pump are connected to reach an extreme high vacuum state. The electron beam apparatus includes an electron gun configured to emit an electron beam and the electron gun chamber to which the sputter ion pump and the non-evaporable getter pump are connected. The electron beam apparatus further includes a gas supply unit configured to supply at least one of hydrogen, oxygen, carbon monoxide, and carbon dioxide to the electron gun chamber.Type: GrantFiled: July 2, 2019Date of Patent: February 6, 2024Assignee: HITACHI HIGH-TECH CORPORATIONInventors: Erina Kawamoto, Soichiro Matsunaga, Souichi Katagiri, Keigo Kasuya, Takashi Doi, Tetsuya Sawahata, Minoru Yamazaki
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Publication number: 20230365212Abstract: A straddle type vehicle includes a front detection unit configured to detect an object in front of a self-vehicle, a first determination unit configured to determine whether there is an avoidance space for avoiding contact with the object by turning in a case where there is a possibility of contact of the self-vehicle with the object, and a notification unit configured to give notification of information regarding the avoidance space in a case where the first determination unit determines that there is the avoidance space. The notification unit gives notification of information, as the information regarding the avoidance space, indicating that it is possible to avoid contact with the object by turning in a travel lane in which the self-vehicle is traveling.Type: ApplicationFiled: July 27, 2023Publication date: November 16, 2023Inventors: Kazuki AKAMI, Satoru KAMIJO, Hiromi SUZUKI, Takashi DOI, Daiki KODAIRA, Satoshi OCHIAI
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Publication number: 20230352262Abstract: In an electron source including a suppressor electrode having an opening at one end portion thereof in a direction along a central axis and an electron emission material having a distal end protruding from the opening, the suppressor electrode further includes a receding portion receding to a position farther from the distal end of the electron emission material than the opening in the direction along the central axis at a position in an outer peripheral direction than the opening, and at least a part of the receding portion is disposed within a diameter of 2810 ?m from a center of the opening. Accordingly, an electron source, an electron gun, and a charged particle beam device such as an electron microscope using the same, in which a machine difference in a device performance due to an axial shift between the electron emission material and the suppressor electrode is reduced, are implemented.Type: ApplicationFiled: June 29, 2020Publication date: November 2, 2023Applicant: Hitachi High-Tech CorporationInventors: Keigo KASUYA, Shuhei ISHIKAWA, Kenji TANIMOTO, Takashi DOI, Soichiro MATSUNAGA, Hiroshi MORITA, Daigo KOMESU, Kenji MIYATA
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Publication number: 20230341731Abstract: According to one embodiment, a liquid crystal display apparatus includes a display region including a plurality of display pixels arrayed in a matrix, an array substrate including a plurality of first electrodes which are arrayed in a matrix, second electrodes which are arranged on the same layer as a layer of the first electrodes and connect the first electrodes to each other, and third electrodes which are arrayed in a matrix on the first electrodes and the second electrodes, a countersubstrate which is arranged to face the array substrate, and a liquid crystal layer which is interposed between the array substrate and the countersubstrate.Type: ApplicationFiled: June 28, 2023Publication date: October 26, 2023Applicant: Japan Display Inc.Inventors: Takashi DOI, Toshihiro NINOMIYA
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Publication number: 20230298845Abstract: A decelerating electrode of this energy filter comprises: an electrode pair that has an opening; and a cavity portion that provided in a rotationally symmetrical manner with the center of the opening as the optical axis. Voltages with electric potentials that are substantially the same as that of a charged particle beam are independently applied to the both sides of the decelerating electrode. When an electrical field protrudes into the cavity portion provided in the decelerating electrode, a saddle point having the same electric potential as that of incident charged particles is formed inside the decelerating electrode. The saddle point acts as a high pass filter for incident charged particles at an energy resolution of 1 mV or less. By analyzing charged particles which have been energy-separated, it is possible to measure the energy spectrum and ?E at the high resolution of 1 mV or less.Type: ApplicationFiled: July 20, 2020Publication date: September 21, 2023Inventors: Kazuhiro HONDA, Hiroyuki ITO, Takashi DOI, Soichiro MATSUNAGA
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Publication number: 20230291961Abstract: According to one embodiment, a source device generates a multistream signal transmitted to a plurality of sink devices which are connected by daisy-chaining and generates the multistream signal by associating daisy chain stage numbers of the sink devices with contents streams for the sink devices.Type: ApplicationFiled: September 7, 2022Publication date: September 14, 2023Applicant: KABUSHIKI KAISHA TOSHIBAInventor: Takashi DOI
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Patent number: 11733569Abstract: According to one embodiment, a liquid crystal display apparatus includes a display region including a plurality of display pixels arrayed in a matrix, an array substrate including a plurality of first electrodes which are arrayed in a matrix, second electrodes which are arranged on the same layer as a layer of the first electrodes and connect the first electrodes to each. other, and third electrodes which are arrayed in a matrix on the first electrodes and the second electrodes, a countersubstrate which is arranged to face the array substrate, and a liquid crystal layer which is interposed between the array substrate and the countersubstrate.Type: GrantFiled: June 23, 2022Date of Patent: August 22, 2023Assignee: Japan Display Inc.Inventors: Takashi Doi, Toshihiro Ninomiya
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Patent number: 11709788Abstract: An adapter device communicates with a sink device and a source device using first and second communication schemes, respectively. The adapter device includes: a transceiver receiving a state read request by detecting that a serial data line connected between the adapter device and the sink device is driven to a low level when a serial clock line connected therebetween is at a high level, and drive the serial data line to the low level and drive the serial clock line to a low level; a transmitter transmitting the state read request to the source device after the serial clock line is driven to the low level; and a receiver receiving a state read signal to read data of a state register in the sink device from the source device, wherein the transceiver transmits the state read signal to the sink device via the serial data line.Type: GrantFiled: February 26, 2021Date of Patent: July 25, 2023Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Kenji Komori, Takashi Doi, Hideki Miyazato
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Patent number: 11673174Abstract: A bridle device and a method for producing a steel strip in which snaking of a steel strip that occurs during production of a high-silicon steel strip is suppressed. The bridle device includes a pair of upper and lower rotatable endless belts or a pair of upper and lower rotatable caterpillars configured to pinch a steel strip. The bridle device is movable or swingable in a steel strip width direction by using a steering mechanism. The bridle device further includes a rolling reduction mechanism configured to perform rolling reduction on a pinched portion of the steel strip by using the pair of upper and lower endless belts or the pair of upper and lower caterpillars. The steering mechanism moves or swings the bridle device in the steel strip width direction, and the rolling reduction mechanism performs rolling reduction on one of end portions in the steel strip width direction.Type: GrantFiled: October 16, 2019Date of Patent: June 13, 2023Assignee: JFE STEEL CORPORATIONInventors: Takashi Doi, Shoji Kasai, Teruhiko Tobe
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Patent number: 11641291Abstract: According to one embodiment, a signal transmission device AC-coupled with a reception device through a digital transmission line, includes transmitting circuitry configured to transmit a differential signal to the digital transmission line, the differential signal including a first signal and a second signal that are based on an encoded bit serial input signal, wherein absolute values of amplitudes of the first and second signals are 857.14 (mV) or larger.Type: GrantFiled: September 13, 2021Date of Patent: May 2, 2023Assignee: Kabushiki Kaisha ToshibaInventor: Takashi Doi
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Publication number: 20230083488Abstract: A detection device includes a substrate, a plurality of photodiodes arranged on the substrate, a plurality of transistors provided correspondingly to each of the photodiodes, an insulating film that covers the transistors, and a plurality of lower electrodes each of which is provided above the insulating film correspondingly to each of the photodiodes, and is electrically coupled to the transistors. The lower electrodes and the photodiodes are stacked in this order above the insulating film, and one of the lower electrodes and one of the photodiodes are provided so as to overlap the transistors in a plan view from a direction orthogonal to the substrate.Type: ApplicationFiled: November 22, 2022Publication date: March 16, 2023Inventors: Ryuji MORI, Isao SUZUMURA, Masahiro TADA, Takashi DOI