Patents by Inventor Kazuya Okada
Kazuya Okada 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: 12125758Abstract: A power semiconductor device in which the size of an insulating substrate is reduced and connection failure can be suppressed includes an insulating substrate, a semiconductor element, and a printed circuit board. The semiconductor element is bonded to one main surface of the insulating substrate. The printed circuit board is bonded to face the semiconductor element. The semiconductor element has a main electrode and a signal electrode. The printed circuit board includes a core member, a first conductor layer, and a second conductor layer. The second conductor layer has a bonding pad. The printed circuit board has a missing portion. A metal column portion is arranged to pass through the inside of the missing portion and reach the insulating substrate. The signal electrode and the bonding pad are connected by a metal wire. The metal column portion and the insulating substrate are bonded.Type: GrantFiled: November 18, 2020Date of Patent: October 22, 2024Assignee: Mitsubishi Electric CorporationInventors: Nobuhiro Asaji, Kazuya Okada, Hidetoshi Ishibashi
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Publication number: 20240344032Abstract: An organoid production method includes culturing a human stem cell in a culture medium containing a cyclic peptide having an amino acid sequence set forth in Formula (1) or a pharmaceutically acceptable salt of the cyclic peptide [in Formula (1), X1 to X6 each represent a specific modified amino acid, X7 represents any amino acid residue, R is absent or represents a C-terminal modification group, n is an integer of 0 or 1, PeG is N-(2-phenylethyl)-glycine, and Nal1 is ?-(1-naphthyl)-L-alanine].Type: ApplicationFiled: March 22, 2024Publication date: October 17, 2024Applicant: JSR CORPORATIONInventors: Kazuya ARAI, Manabu ITOH, Kentaro SHOJI, Natsumi SUGIMOTO, Ryo OKADA
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Publication number: 20240274498Abstract: A semiconductor module includes a semiconductor chip, an insulating substrate, a relay board, and a heat-dissipating component. The insulating substrate includes a main circuit pattern and an insulating layer. The main circuit pattern is electrically connected to the semiconductor chip. The relay board sandwiches the semiconductor chip together with the main circuit pattern in a direction in which the insulating layer and the semiconductor chip sandwich the main circuit pattern. The relay board is electrically connected to the main circuit pattern through the semiconductor chip. The heat-dissipating component is sandwiched between the insulating substrate and the relay board in the sandwiching direction. The main circuit pattern at least partially surrounds the heat-dissipating component on the insulating layer.Type: ApplicationFiled: June 9, 2021Publication date: August 15, 2024Applicant: Mitsubishi Electric CorporationInventors: Shotaro YAMAMOTO, Yoshiko TAMADA, Kazuya OKADA, Seiji OKA
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Publication number: 20240266315Abstract: An object is to provide a technique capable of reducing variations in gate-source voltage among a plurality of semiconductor elements. The semiconductor device includes the plurality of semiconductor elements, a metal electrode, and a control wire. Each of the plurality of semiconductor elements has a control electrode configured to control a main current. The main current of the plurality of semiconductor element flows through the metal electrode. The control wire connects each of the control electrodes of the plurality of semiconductor elements in series, and interlinks with a magnetic field generated when the main current flows through the metal electrode.Type: ApplicationFiled: November 2, 2023Publication date: August 8, 2024Applicant: Mitsubishi Electric CorporationInventor: Kazuya OKADA
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Publication number: 20240155002Abstract: A first controller of a first device monitors communication to a first vehicle connected to the network. Further, when it is detected that an attack on the first vehicle is being carried out from the attack source device, the first controller transmits a first command for activating a honeypot server simulating a vehicle system of the first vehicle to the second device and transmits a second command for transferring packets transmitted from the attacking device to the first vehicle to the second device to a communication device that relays communication to the first vehicle in the network. Further, a second controller of a second device processes packets transmitted from the attack source device to the first vehicle and transferred to the second device by the communication device.Type: ApplicationFiled: November 1, 2023Publication date: May 9, 2024Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Kazuya OKADA
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Publication number: 20240106791Abstract: An information processing apparatus comprises a controller configured to execute: obtaining, from a user device, a query requesting name resolution of a first device accessible via a wide area network by DNS protocol; obtaining a first IP address, which is an IP address of the first device, based on the query; generating a second IP address that is a dummy IP address corresponding to the first IP address; replacing the first IP address with the second IP address, and transmitting a response to the query to the user device, with the second IP address as result of the name resolution; when a connection request addressed to the second IP address is received from the user device, transmitting the connection request to the wide area network, after replacing a destination from the second IP address to the first IP address.Type: ApplicationFiled: September 25, 2023Publication date: March 28, 2024Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Kazuya OKADA
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Publication number: 20230374236Abstract: A prepreg containing a matrix resin containing: a polyetherimide resin (A) having a repeating unit represented by General Formula (A); and carbon fibers, in which the matrix resin satisfies Condition (1). Condition (1): A tensile elongation at break (T1) of a film, obtained by extrusion-molding the matrix resin into a film shape, in a TD direction, and a tensile elongation at break (T2) of the film in the TD direction after immersing of the film for 1,000 hours in a specific oil at 23° C. are measured, and a tensile elongation retention rate obtained by Expression (1) is 15% or greater and 90% or less. Tensile Elongation Retention Rate=(Tensile Elongation at Break (T2)/Tensile Elongation at Break (T1))×100 . . . (1) (in Formula (a), m is a number of 5 to 1,500.Type: ApplicationFiled: August 3, 2023Publication date: November 23, 2023Applicant: Mitsubishi Chemical CorporationInventors: Yuma FURUHASHI, Kazuya OKADA
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Publication number: 20230197668Abstract: A power semiconductor module includes a plurality of self-arc-extinguishing semiconductor elements, a printed wiring board, a plurality of conductive joining members, and a plurality of conductive gate wires. The printed wiring board includes an insulating substrate, a source conductive pattern, and a gate conductive pattern. The plurality of self-arc-extinguishing semiconductor elements each include a source electrode and a gate electrode. The source electrodes are joined to the source conductive pattern by means of the plurality of conductive joining members. The plurality of conductive gate wires connect the gate electrodes and the gate conductive pattern.Type: ApplicationFiled: July 8, 2020Publication date: June 22, 2023Applicant: Mitsubishi Electric CorporationInventors: Yoshiko TAMADA, Seiji OKA, Shota MORISAKI, Kazuya OKADA
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Publication number: 20220415738Abstract: A power semiconductor device in which the size of an insulating substrate is reduced and connection failure can be suppressed includes an insulating substrate, a semiconductor element, and a printed circuit board. The semiconductor element is bonded to one main surface of the insulating substrate. The printed circuit board is bonded to face the semiconductor element. The semiconductor element has a main electrode and a signal electrode. The printed circuit board includes a core member, a first conductor layer, and a second conductor layer. The second conductor layer has a bonding pad. The printed circuit board has a missing portion. A metal column portion is arranged to pass through the inside of the missing portion and reach the insulating substrate. The signal electrode and the bonding pad are connected by a metal wire. The metal column portion and the insulating substrate are bonded.Type: ApplicationFiled: November 18, 2020Publication date: December 29, 2022Applicant: Mitsubishi Electric CorporationInventors: Nobuhiro ASAJI, Kazuya OKADA, Hidetoshi ISHIBASHI
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Patent number: 10601307Abstract: The object is to provide a technology for enabling detection of the voltage resistance in an assembled snubber substrate. A semiconductor device includes: a snubber substrate fixed to a base while being spaced from a p electrode and an n electrode; a snubber circuit disposed on the snubber substrate and electrically connected to the p electrode and the n electrode; and a semiconductor element electrically connected to the snubber circuit. The base includes an insulating component insulating the p electrode, the n electrode, and the snubber substrate from one another.Type: GrantFiled: June 24, 2019Date of Patent: March 24, 2020Assignee: Mitsubishi Electric CorporationInventors: Yasutaka Shimizu, Yuji Miyazaki, Kazuya Okada
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Publication number: 20200083801Abstract: The object is to provide a technology for enabling detection of the voltage resistance in an assembled snubber substrate. A semiconductor device includes: a snubber substrate fixed to a base while being spaced from a p electrode and an n electrode; a snubber circuit disposed on the snubber substrate and electrically connected to the p electrode and the n electrode; and a semiconductor element electrically connected to the snubber circuit. The base includes an insulating component insulating the p electrode, the n electrode, and the snubber substrate from one another.Type: ApplicationFiled: June 24, 2019Publication date: March 12, 2020Applicant: Mitsubishi Electric CorporationInventors: Yasutaka Shimizu, Yuji Miyazaki, Kazuya Okada
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Patent number: 10504817Abstract: Provided is a technique for improving product attachment. In a semiconductor device, the following expression is satisfied by an angle A formed by an imaginary line connecting two attachment holes together and an imaginary line connecting together a lowest point of one of two projections positioned in a surrounding portion of one of the two attachment holes and a contact point between a bulge and a heat sink, with a screw fastened to the heat sink through the one attachment hole, where M represents a vertical direction between the lower end of a body and the lower end of a case, where W represents a bulge amount of the bulge, where T represents a height of the projection, where L represents a horizontal distance from the outer peripheral end of the case to the outer peripheral end of the heat dissipation plate: 0<A<arctan((M+W?T)/L).Type: GrantFiled: June 11, 2018Date of Patent: December 10, 2019Assignee: Mitsubishi Electric CorporationInventors: Kazuya Okada, Hiroki Muraoka, Koichi Masuda, Yasutaka Shimizu, Shoji Izumi
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Publication number: 20190074238Abstract: Provided is a technique for improving product attachment. In a semiconductor device, the following expression is satisfied by an angle A formed by an imaginary line connecting two attachment holes together and an imaginary line connecting together a lowest point of one of two projections positioned in a surrounding portion of one of the two attachment holes and a contact point between a bulge and a heat sink, with a screw fastened to the heat sink through the one attachment hole, where M represents a vertical direction between the lower end of a body and the lower end of a case, where W represents a bulge amount of the bulge, where T represents a height of the projection, where L represents a horizontal distance from the outer peripheral end of the case to the outer peripheral end of the heat dissipation plate: 0<A<arctan ((M+W?T)/L).Type: ApplicationFiled: June 11, 2018Publication date: March 7, 2019Applicant: Mitsubishi Electric CorporationInventors: Kazuya OKADA, Hiroki MURAOKA, Koichi MASUDA, Yasutaka SHIMIZU, Shoji IZUMI
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Patent number: 10069998Abstract: An image forming apparatus according to an embodiment includes a paper supply unit. An image forming unit forms an image on paper supplied from the paper supply unit. A reading unit generates image information by reading an original document, the generated image information corresponding to the original document. An input unit receives input designation of a memo region in the generated image information. A control unit determines a color of the original document based on the generated image information. The image forming unit forms a memo image in the designated memo region on the paper supplied from the paper supply unit with a color different from the determined color of the original document.Type: GrantFiled: February 2, 2017Date of Patent: September 4, 2018Assignees: Kabushiki Kaisha Toshiba, Toshiba TEC Kabushiki KaishaInventors: Kazuya Okada, Tsukasa Tanda
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Patent number: 9860401Abstract: An image forming apparatus comprises a sensor, a base, a clamping section and a limiting section. The sensor includes a hook having a claw section. The sensor is held on the base. The clamping section and the limiting section are arranged on the base. The claw section is clamped with the clamping section. The limiting section is elastically deformable when the sensor is mounted on the base. When the claw section is clamped with the clamping section, the limiting section faces the hook from the opposite side of the clamping section so as to limit the position of the hook.Type: GrantFiled: December 22, 2016Date of Patent: January 2, 2018Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHAInventor: Kazuya Okada
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Publication number: 20170230530Abstract: An image forming apparatus according to an embodiment includes a paper supply unit. An image forming unit forms an image on paper supplied from the paper supply unit. A reading unit generates image information by reading an original document, the generated image information corresponding to the original document. An input unit receives input designation of a memo region in the generated image information. A control unit determines a color of the original document based on the generated image information. The image forming unit forms a memo image in the designated memo region on the paper supplied from the paper supply unit with a color different from the determined color of the original document.Type: ApplicationFiled: February 2, 2017Publication date: August 10, 2017Inventors: Kazuya OKADA, Tsukasa TANDA
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Publication number: 20170104883Abstract: An image forming apparatus comprises a sensor, a base, a clamping section and a limiting section. The sensor includes a hook having a claw section. The sensor is held on the base. The clamping section and the limiting section are arranged on the base. The claw section is clamped with the clamping section. The limiting section is elastically deformable when the sensor is mounted on the base. When the claw section is clamped with the clamping section, the limiting section faces the hook from the opposite side of the clamping section so as to limit the position of the hook.Type: ApplicationFiled: December 22, 2016Publication date: April 13, 2017Inventor: Kazuya Okada
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Patent number: 9565325Abstract: An image forming apparatus comprises a sensor, a base, a clamping section and a limiting section. The sensor includes a hook having a claw section. The sensor is held on the base. The clamping section and the limiting section are arranged on the base. The claw section is clamped with the clamping section. The limiting section is elastically deformable when the sensor is mounted on the base. When the claw section is clamped with the clamping section, the limiting section faces the hook from the opposite side of the clamping section so as to limit the position of the hook.Type: GrantFiled: July 24, 2015Date of Patent: February 7, 2017Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHAInventor: Kazuya Okada
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Publication number: 20170026531Abstract: An image forming apparatus comprises a sensor, a base, a clamping section and a limiting section. The sensor includes a hook having a claw section. The sensor is held on the base. The clamping section and the limiting section are arranged on the base. The claw section is clamped with the clamping section. The limiting section is elastically deformable when the sensor is mounted on the base. When the claw section is clamped with the clamping section, the limiting section faces the hook from the opposite side of the clamping section so as to limit the position of the hook.Type: ApplicationFiled: July 24, 2015Publication date: January 26, 2017Inventor: Kazuya Okada
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Patent number: 9298096Abstract: An alkaline development-type curable resin composition having an excellent strength against tearing, breaking, distortion and torsion, and excellent toughness, a cured product of the curable resin composition, a printed circuit board having the cured product, and a process for manufacturing the cured product are disclosed. A curable resin composition is obtained, which contains (A) a thermoplastic resin, (B) a thermosetting component, (C) an alkali-soluble component, and at least one of (D-1) a photopolymerization initiator and (D-2) a photo-base generator, the thermoplastic resin (A) having two or more glass transition points including two glass transition points Tgx and Tgy, which satisfy Tgx>30° C. and Tgy<0° C. and the thermosetting component (B) having a glass transition point Tgz, which satisfies Tgz?Tgy+20° C. Moreover, a cured product of the curable resin composition, a printed circuit board having the cured product, and a process for manufacturing the cured product are obtained.Type: GrantFiled: July 7, 2014Date of Patent: March 29, 2016Assignee: Taiyo Ink Mfg. Co., Ltd.Inventors: Kazuya Okada, Shuichi Yamamoto, Shoji Minegishi, Daichi Okamoto, Xiaozhu Wei