Patents by Inventor Keisuke Kobayashi
Keisuke Kobayashi 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: 20240120793Abstract: Provided are a stator for a rotary electric machine and the rotary electric machine. The stator includes a stator core, and a stator winding formed in a plurality of phases, the stator winding including a slot conductor and a crossover conductor configured to connect ends of a pair of the slot conductors, the ends placed at a same side of the pair of slot conductors.Type: ApplicationFiled: August 31, 2021Publication date: April 11, 2024Applicant: HITACHI ASTEMO, LTD.Inventors: Miku TAKAHASHI, Yuji KOBAYASHI, Yasuyuki SAITO, Noriaki HINO, Shinji YAMAZAKI, Takuya MIYAGI, Keisuke TATENO
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Motion state monitoring system, training support system, motion state monitoring method, and program
Patent number: 11925458Abstract: A motion state monitoring system, a training support system, a motion state monitoring method, and a program capable of suitably managing measurement results according to an attaching direction of a sensor are provided. A motion state monitoring system according to the present disclosure monitors a motion state of a target part of a subject's body. The motion state monitoring system includes an acquisition unit, an attaching direction detection unit, and a control processing unit. The acquisition unit acquires sensing information of a sensor attached to the target part. The attaching direction detection unit detects an attaching direction of the sensor. The control processing unit outputs information related to the sensing information in association with the attaching direction.Type: GrantFiled: August 13, 2021Date of Patent: March 12, 2024Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Makoto Kobayashi, Toru Miyagawa, Issei Nakashima, Keisuke Suga, Masayuki Imaida, Manabu Yamamoto, Yohei Otaka, Masaki Katoh, Asuka Hirano, Taiki Yoshida -
Publication number: 20240080590Abstract: Photoelectric conversion apparatus includes read circuit for reading signals of pixel array, and signal processing unit for generating pixel signal by performing CDS on signals read by the read circuit and performing shading correction on the pixel signal. The read circuit has function of reading signal of the pixel array with first and second gain. The read circuit reads noise level with the first gain and reads optical signal level with the first or second gain from selected effective pixel for the correlated double sampling. In the shading correction, pixel signal of effective pixel from which optical signal level has been read with the first gain is corrected based on first correction value, and pixel signal of effective pixel from which optical signal level has been read with the second gain is corrected based on second correction value.Type: ApplicationFiled: August 22, 2023Publication date: March 7, 2024Inventors: TAKESHI SHIMADA, KEISUKE TAKAHASHI, KEITA MASUDA, HIDEO KOBAYASHI
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Publication number: 20240080591Abstract: Photoelectric conversion apparatus includes pixel array having effective pixel, a readout circuit configured to read out signal of the pixel array, and signal processing unit configured to perform correlated double sampling process and correction process on signals read out from the effective pixel by the readout circuit. The readout circuit has function of reading out signal of the pixel array with first gain, and function of reading out signal of the pixel array with second gain. Correction value for the correction process is generated based on difference between signal read out from the pixel array with the first gain when noise level is output from the pixel array, and signal read out from the pixel array with the second gain when noise level is output from the pixel array.Type: ApplicationFiled: August 22, 2023Publication date: March 7, 2024Inventors: KEISUKE TAKAHASHI, HIDEO KOBAYASHI, ATSUSHI SHIMADA
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Publication number: 20240072132Abstract: A semiconductor device includes: an insulated gate electrode structure provided in a semiconductor substrate; a base region; a first main electrode region; a contact plug buried in a trench penetrating the first main electrode region to reach the base region with a barrier metal film interposed; an interlayer insulating film provided with a contact hole integrally connected to the trench; a contact region provided in contact with a bottom of the trench; and a second main electrode region, wherein an opening width at a lower end of the contact hole conforms to a width at an opening of the trench, an upper part of a side wall continued from the opening of the trench has a curved surface convex to an outside, and a lower part of the side wall continuously connected to the bottom of the trench has a curved surface convex to the outside.Type: ApplicationFiled: July 25, 2023Publication date: February 29, 2024Applicant: FUJI ELECTRIC CO., LTD.Inventors: Keisuke KOBAYASHI, Makoto ENDOU, Shiomi INOUE
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Publication number: 20230308598Abstract: An image processing device includes an angle detection unit configured to detect an angle between a front portion of a movable apparatus and a rear portion of the movable apparatus, a combining unit configured to combine an image captured by a front portion imaging unit provided at the front portion and an image captured by a rear portion imaging unit provided at the rear portion, and a boundary calculation unit configured to calculate a boundary between the images combined in the combining unit on the basis of the angle.Type: ApplicationFiled: March 9, 2023Publication date: September 28, 2023Inventors: TERUYUKI HIGASHIYAMA, IKUNARI NAKAHARA, KEISUKE KOBAYASHI
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Publication number: 20220376109Abstract: To provide a technique capable of improving performance and reliability of a semiconductor device. An n?-type epitaxial layer (12) is formed on an n-type semiconductor substrate (11), and a p+-type body region (14), n+-type current spreading regions (16, 17), and a trench. TR are formed in the n?-type epitaxial layer (12). A bottom surface B1 of the trench TR is located in the p+-type body region (14), a side surface S1 of the trench TR is in contact with the n+-type current spreading region (17), and a side surface S2 of the trench TR is in contact with the n+-type current spreading region (16). Here, a ratio of silicon is higher than a ratio of carbon in an upper surface T1 of the n?-type epitaxial layer (12), and the bottom surface B1, the side surface S1, and the side surface 32 of the trench.Type: ApplicationFiled: June 18, 2020Publication date: November 24, 2022Inventors: Keisuke Kobayashi, Kumiko Konishi, Akio Shima, Norihito Yabuki, Yusuke Sudoh, Satoru Nogami, Makoto Kitabatake
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Publication number: 20220291155Abstract: [Problem] The present invention aims to solve the problems that size of X-ray monochromater crystal assembly is restricted and the vacuum of the X-ray source and the vacuum of the analysis chamber cannot be separated.Type: ApplicationFiled: April 28, 2022Publication date: September 15, 2022Inventors: Keisuke Kobayashi, Yoshiko Kobayashi
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Publication number: 20210280677Abstract: A SiC wafer including a SiC substrate and an epitaxial layer formed on the SiC substrate and containing SiC is provided, and a composition ratio of C—Si of an upper surface of the epitaxial layer is 50 atm % or less.Type: ApplicationFiled: February 24, 2021Publication date: September 9, 2021Applicant: HITACHI METALS, LTD.Inventors: Keisuke KOBAYASHI, Akio SHIMA
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Patent number: 11031238Abstract: In a silicon carbide stacked substrate, the efficiency of converting the basal plane dislocation (BPD) which is a fault to deteriorate the current-carrying reliability into a threading edge dislocation (TED) which is a harmless fault is improved, thereby improving the reliability of the silicon carbide stacked substrate. As means therefor, in a silicon carbide stacked substrate including a SiC substrate and a buffer layer and a drift layer which are epitaxial layers sequentially formed on the SiC substrate, a semiconductor layer having an impurity concentration lower than those of the SiC substrate and the buffer layer and higher than that of the drift layer is formed between the SiC substrate and the buffer layer so as to be in contact with an upper surface of the SiC substrate.Type: GrantFiled: January 30, 2018Date of Patent: June 8, 2021Assignee: Hitachi Metals, Ltd.Inventors: Kumiko Konishi, Kiyoshi Oouchi, Keisuke Kobayashi, Akio Shima
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Patent number: 10983424Abstract: An image projection apparatus configured to project a projection image on a projected surface via a projection optical system that includes a first optical system capable of adjusting a curvature amount of an image plane and is interchangeably attached to the image projection apparatus includes an acquirer configured to acquire information on a reference position of the first optical system, and a controller configured to move the first optical system to the reference position when detecting an interchange of the projection optical system or when accepting an instruction from a user.Type: GrantFiled: April 10, 2019Date of Patent: April 20, 2021Assignee: CANON KABUSHIKI KAISHAInventor: Keisuke Kobayashi
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Patent number: 10638103Abstract: An image projection apparatus displays includes a lens attachable portion to which a plurality of projection lenses having different optical characteristics are interchangeably attached, a drive signal producer configured to produce, for each color light beam, a drive signal used to drive the light modulation element based on an input image signal, and an information acquirer configured to acquire information on an optical characteristic of the projection lens attached to the lens attachable portion. The information on the optical characteristic of the projection lens contains information on a chromatic aberration of the projection lens. The drive signal producer reduces influence of a shift below the modulation pixel caused by the chromatic aberration of the projection lens by using the information on the optical characteristic, and produces the drive signal corresponding to at least one of the plurality of color light beams.Type: GrantFiled: March 8, 2018Date of Patent: April 28, 2020Assignee: CANON KABUSHIKI KAISHAInventor: Keisuke Kobayashi
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Publication number: 20200006066Abstract: In a silicon carbide stacked substrate, the efficiency of converting the basal plane dislocation (BPD) which is a fault to deteriorate the current-carrying reliability into a threading edge dislocation (TED) which is a harmless fault is improved, thereby improving the reliability of the silicon carbide stacked substrate. As means therefor, in a silicon carbide stacked substrate including a SiC substrate and a buffer layer and a drift layer which are epitaxial layers sequentially formed on the SiC substrate, a semiconductor layer having an impurity concentration lower than those of the SiC substrate and the buffer layer and higher than that of the drift layer is formed between the SiC substrate and the buffer layer so as to be in contact with an upper surface of the SiC substrate.Type: ApplicationFiled: January 30, 2018Publication date: January 2, 2020Inventors: Kumiko KONISHI, Kiyoshi OOUCHI, Keisuke KOBAYASHI, Akio SHIMA
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Patent number: 10466574Abstract: An image projection apparatus includes an acquirer configured to acquire information on a lens unit, and a controller configured to set, based on the information on the lens unit, at least one of an image orientation of a projection image and a shift direction of the lens unit.Type: GrantFiled: July 17, 2018Date of Patent: November 5, 2019Assignee: CANON KABUSHIKI KAISHAInventor: Keisuke Kobayashi
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Publication number: 20190313066Abstract: An image projection apparatus configured to project a projection image on a projected surface via a projection optical system that includes a first optical system capable of adjusting a curvature amount of an image plane and is interchangeably attached to the image projection apparatus includes an acquirer configured to acquire information on a reference position of the first optical system, and a controller configured to move the first optical system to the reference position when detecting an interchange of the projection optical system or when accepting an instruction from a user.Type: ApplicationFiled: April 10, 2019Publication date: October 10, 2019Inventor: Keisuke Kobayashi
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Patent number: 10229974Abstract: To solve a problem of realizing a large current and highly reliable power semiconductor device while shrinking a unit cell. A semiconductor device according to the present invention includes a plurality of p-type body regions extending in a first direction. The semiconductor device further includes: a JFET region formed to extend in the first direction between p-type body regions which are adjacent to each other in a second direction orthogonal to the first direction; an n+-type source region formed to extend in the first direction within a p-type body region and separate from an end side surface of the p-type body; and a channel region formed to extend in the first direction and in a top layer portion of a p-type body region between an end side surface of the p-type body region and an end side surface of an n+-type source region.Type: GrantFiled: May 18, 2015Date of Patent: March 12, 2019Assignee: HITACHI, LTD.Inventors: Mieko Matsumura, Junichi Sakano, Naoki Tega, Yuki Mori, Haruka Shimizu, Keisuke Kobayashi
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Publication number: 20190025677Abstract: An image projection apparatus includes an acquirer configured to acquire information on a lens unit, and a controller configured to set, based on the information on the lens unit, at least one of an image orientation of a projection image and a shift direction of the lens unit.Type: ApplicationFiled: July 17, 2018Publication date: January 24, 2019Inventor: Keisuke Kobayashi
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Publication number: 20180262728Abstract: An image projection apparatus displays includes a lens attachable portion to which a plurality of projection lenses having different optical characteristics are interchangeably attached, a drive signal producer configured to produce, for each color light beam, a drive signal used to drive the light modulation element based on an input image signal, and an information acquirer configured to acquire information on an optical characteristic of the projection lens attached to the lens attachable portion. The information on the optical characteristic of the projection lens contains information on a chromatic aberration of the projection lens. The drive signal producer reduces influence of a shift below the modulation pixel caused by the chromatic aberration of the projection lens by using the information on the optical characteristic, and produces the drive signal corresponding to at least one of the plurality of color light beams.Type: ApplicationFiled: March 8, 2018Publication date: September 13, 2018Inventor: Keisuke Kobayashi
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Patent number: 10066364Abstract: A construction machine includes: a cover that covers an engine and a radiator; a radiator fan that is arranged at the rear of a vehicle body frame and discharges exhaust gas toward the rear of the vehicle body frame from the inner space of the cover; an injection device that injects a reducing agent into exhaust gas of the engine; a tank housing section that is arranged at one side of the vehicle body frame, includes an introduction section for introducing outside air, and houses a tank for storing the reducing agent injected by the injection device; and a connection section that is arranged in either the cover or the vehicle body frame and in the tank housing section, connects the inner space of the tank housing section and the inner space of the cover, and allows the outside air and the pipe to pass therethrough, the outside air having been introduced from the introduction section by the suction pressure of the radiator fan, the pipe supplying the reducing agent to the injection device.Type: GrantFiled: October 23, 2015Date of Patent: September 4, 2018Assignee: KCM CorporationInventors: Yasuo Yamazaki, Takashi Takeyama, Keigo Kikuchi, Akira Shimohira, Keisuke Kobayashi
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Patent number: 10062759Abstract: A MOSFET using a SiC substrate has a problem that a carbon-excess layer is formed on a surface by the application of mechanical stress due to thermal oxidation and the carbon-excess layer degrades mobility of channel carriers. In the invention, (1) a layer containing carbon-carbon bonds is removed; (2) a gate insulating film is formed by a deposition method; and (3) an interface between a crystal surface and the insulating film is subjected to an interface treatment at a low temperature for a short time. Due to this, the carbon-excess layer causing characteristic degradation is effectively eliminated, and at the same time, dangling bonds can be effectively eliminated by subjecting an oxide film and an oxynitride film to an interface treatment.Type: GrantFiled: March 29, 2013Date of Patent: August 28, 2018Assignee: HITACHI, LTD.Inventors: Digh Hisamoto, Keisuke Kobayashi, Naoki Tega, Toshiyuki Ohno, Hirotaka Hamamura, Mieko Matsumura