10900 patents
Page 28 of 545
Utility
Semiconductor package with plurality of grooves on lower surface
24 Oct 23
A semiconductor package includes: a plurality of die pads; a plurality of semiconductor chips provided on the plurality of die pads respectively; a plurality of lead terminals connected to the plurality of semiconductor chips respectively; and a package sealing the plurality of die pads, the plurality of semiconductor chips, and the plurality of lead terminals, the plurality of die pads and the plurality of lead terminals are exposed from a lower surface of the package, and on the lower surface of the package, grooves are provided among the die pads adjacent to one another and among the lead terminals adjacent to one another.
Yuki Terado, Shiori Uota, Shinji Sakai
Filed: 16 Aug 21
Utility
Semiconductor device comprising a buffer layer including a complex defect of interstice carbon and interstice oxygen
24 Oct 23
A semiconductor device includes: a drift layer of a first conduction type provided in a semiconductor substrate having a first principal plane and a second principal plane opposed to the first principal plane; a first semiconductor layer of a second conduction type provided between the first principal plane of the semiconductor substrate and the drift layer and having impurity concentration higher than impurity concentration of the drift layer; a first buffer layer of a first conduction type provided between the second principal plane of the semiconductor substrate and the drift layer and having hydrogen-induced donors with impurity concentration higher than impurity concentration of the drift layer; and a second semiconductor layer of a first conduction type or a second conduction type provided between the second principal plane of the semiconductor substrate and the first buffer layer and having impurity concentration higher than impurity concentration of the drift layer, wherein the first buffer layer includes a complex defect of interstice carbon and interstice oxygen having density decreasing from the second principal plane side toward the first principal plane side.
Kakeru Otsuka, Hayato Okamoto, Katsumi Nakamura, Koji Tanaka, Koichi Nishi
Filed: 28 Apr 21
Utility
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24 Oct 23
A semiconductor device includes: a semiconductor substrate including an upper surface and a lower surface opposing each other and a drift layer of a first conductivity type; a base layer of a second conductivity type; an emitter layer of the first conductivity type and a contact layer of the second conductivity type; an active trench; dummy trenches; a trench gate electrode formed in the active trench; a dummy trench gate electrode formed in each of the dummy trenches; an embedded insulating film formed on the trench gate electrode in the active trench, formed on the dummy trench gate electrode in the dummy trench, and having an upper end lower than the upper surface; and an emitter electrode contacting the emitter layer on the upper surface and an inner wall of the active trench, and contacting the contact layer on the upper surface and an inner wall of the dummy trench.
Koichi Nishi, Shinya Soneda
Filed: 18 Aug 21
Utility
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24 Oct 23
A rotating electric machine including a rotor including a rotor core arranged coaxially with a stator core via an air gap formed between the stator core and the rotor core, and a plurality of permanent magnet groups each forming one magnetic pole, A flux barrier is formed between one set of permanent magnets adjacent to each other in the circumferential direction in each permanent magnet group forming one magnetic pole.
Junji Kitao, Kosho Yamane, Tomohira Takahashi, Yoshihiro Miyama
Filed: 4 Feb 19
Utility
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24 Oct 23
In sensorless control for a rotary machine, when variations in inductances for U, V, W phases due to manufacturing error are great, imbalance occurs among detected currents for the respective phases.
Yosuke Hachiya, Masato Ito, Akihiro Maruyama, Kunihiro Kawahara
Filed: 23 Apr 19
Utility
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24 Oct 23
To provide a controller for AC rotary electric machine which can suppress that the control accuracy of current is deteriorated, when switching from the all phase short circuit state to the switching control.
Shingo Harada
Filed: 29 Jul 21
Utility
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24 Oct 23
A communication system includes a first device and a plurality of second devices, and each of the second devices includes a pairing processing unit, a device information storage unit, and a data control unit.
Koichi Orito
Filed: 9 Jun 21
Utility
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24 Oct 23
A motor drive device includes a case including a first surface and a housing portion that opens to the first surface side, a terminal block including a terminal to which an electric wire extending to an outside of the case is connectable and being housed in the housing portion, an openable and closable cover covering the opening, and a lock unit restricting opening and closing of the cover and bringing the cover into a locked state in a state where the cover is closed.
Hideaki Yamamoto, Toshio Nakayama, Akihiro Gonda, Nichika Moriguchi, Yorimasa Yasuda
Filed: 12 Feb 21
Utility
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19 Oct 23
A device control apparatus (110) includes a personality-information acquiring unit (114) that acquires personality information indicating a personality of a user, a control-method specifying unit (115) that specifies a device control method that is a control method for a device (101) used by the user from the personality information and a lifestyle pattern of the user, and a control unit (116) that controls the device (101) in accordance with the device control method.
Takeaki SHIMOKAWA, Tetsuro SHIDA
Filed: 6 Nov 20
Utility
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19 Oct 23
To provide a control calculation apparatus which can generate the target trajectory according to the state of deviating, and can suppress that the riding comfort is deteriorated, even if the vehicle deviates from the initial trajectory for the lane change due to disturbance, such as the override.
Kenta TOMINAGA, Tomoki UNO, Yuko OMAGARI, Ryota OKAMOTO
Filed: 26 Jan 23
Utility
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19 Oct 23
An air conditioning apparatus for a railway vehicle includes a compressor to compress a refrigerant, a condenser to condense the compressed refrigerant, an expander to expand the condensed refrigerant, an evaporator to vaporize the expanded refrigerant, and refrigerant piping connecting the compressor, the condenser, the expander, and the evaporator.
Katsuhiro FUJIKI
Filed: 25 May 21
Utility
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19 Oct 23
The failure diagnosis apparatus whether or not a failure exists in a fuel-evaporation-gas purging system that a negative pressure in an intake system of an internal combustion engine is introduced into an accumulator and pressure accumulation is performed in a time period from a time when a driver turns off an ignition key to a time when the internal combustion engine stops its rotation, that the accumulated negative pressure is introduced into a fuel-evaporation-gas path before the internal combustion engine stops the rotation or after the internal combustion engine has stopped the rotation, and that in a time from a time when after the internal combustion engine has stopped the rotation, the driver again turns on the ignition key to a time when the internal combustion engine starts, it is determined whether or not a pressure change in the fuel-evaporation-gas path exists.
Hiroshi SURUGA, Shuichi Wada, Yosuke Fukuzawa
Filed: 19 Sep 22
Utility
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19 Oct 23
In a turbofan, a first curve, formed by projecting a leading edge onto a plane perpendicular to a rotating shaft, has a first inflection point and has a portion that is convex at a point closer to the first inflection point than the first point is in a counter-rotational direction and a portion that is convex at a point closer to the second point than the first inflection point is in the rotational direction, the first point is located forward of the second point in the rotational direction, a second curve, formed by projecting the trailing edge onto a plane perpendicular to the rotating shaft, follows an arc centered on the rotating shaft in a top view, a third curve, formed by projecting the trailing edge onto a cylindrical plane coaxial with the rotating shaft, is formed so as to be convex in the rotational direction, and a junction point of the third curve and the shroud is located behind the junction point of the third curve and the main plate in the rotational direction.
Ryutaro ASANO, Tomoya FUKUI, Kazuki ISOMURA, Makoto KURIHARA
Filed: 25 Nov 20
Utility
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19 Oct 23
An indoor heat exchanger includes: a plurality of heat transfer tubes including respective flow passages therein through which water flows as a heat medium; and a header that distributes water that flows into the header from an inflow tube connected to a heat source side to the plurality of heat transfer tubes.
Kazunori FUKUDA, Masahiko TAKAGI, Koichi OBARA, Kodai MIYAKAWA
Filed: 12 Nov 20
Utility
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19 Oct 23
An air conditioning control device includes a storage device that stores a plurality of analysis conditions to which respective priorities are assigned, and a result of an airflow analysis for each of the analysis conditions, and an arithmetic device that controls an air-conditioning apparatus.
Masae SAWADA, Ryoma UDAKA, Mio MOTODANI
Filed: 21 Oct 20
Utility
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19 Oct 23
An air-conditioning apparatus includes: a refrigerant circuit; a casing configured to accommodate therein a heat exchanger and an internal refrigerant pipe, the heat exchanger and the internal refrigerant pipe each forming a part of the refrigerant circuit; a refrigerant pipe connection portion; an opening port formed on the casing, and configured to allow an interior of the casing to communicate with an exterior of the casing; a cover portion configured to cover a periphery of the refrigerant pipe connection portion, and cover, the opening port; and a refrigerant sensing unit provided in a refrigerant leakage sensing space, the refrigerant leakage sensing space being made up of an outside space of the casing and an inside space of the casing, the outside space being covered by the cover portion, the inside space communicating with the outside space through the opening port.
Shunji UEDA, Kota NAGANO
Filed: 17 Nov 20
Utility
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19 Oct 23
A position estimation apparatus comprises: a satellite positioning device for calculating satellite positioning position-information based on satellite information; an autonomous positioning device for calculating autonomous positioning position-information based on vehicle information; a geographic map information storage device for storing geographic map information; a positioning-device estimation device for estimating a positioning device whose error of estimation position on a mobile object becomes minimum based on first position information and the geographic map information, and for calculating positioning-device information related to the positioning device; and a position estimation device for calculating second position information based on the satellite and autonomous positioning position-information and the positioning-device information, wherein the positioning-device estimation device estimates a positioning device to be changed over thereto, before its positioning accuracy will be reduced; and the position estimation device verifies go/no-go determination of usage on the positioning device estimated, and estimates a position of the mobile object.
Ken HIKASA, Kohei Mori, Nariaki Takehara
Filed: 7 Mar 23
Utility
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19 Oct 23
An air conditioner system in which an outdoor unit and a plurality of indoor units are connected via a communication line includes: a communication unit configured to communicate with an external device and one indoor unit of the plurality of indoor units; and a communication control unit configured to, as information for identifying each of the outdoor unit and the plurality of indoor units, associate first identification information uniquely set to each of the outdoor unit and the plurality of indoor units with second identification information uniquely set to the communication unit, and transmit the associated information from the one indoor unit to the external device via the communication unit.
Koji YAMAGUCHI
Filed: 5 Feb 21
Utility
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19 Oct 23
A dynamic map generation device includes processing circuitry configured to acquire dynamic map generation information; detect whether or not there is deficient dynamic information or static information in the dynamic map generation information; infer a deficiency-related value on the basis of the dynamic map generation information and a machine learning model when it is detected that there is deficient dynamic information; generate deficiency interpolation information corresponding to the deficient dynamic information on the basis of the deficiency-related value; synchronize the deficiency interpolation information with the dynamic map generation information in which the deficient dynamic information is deficient; and generate the dynamic map on the basis of the synchronized dynamic map generation information.
Taiki NAKAURA
Filed: 4 Dec 20
Utility
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19 Oct 23
An outdoor heat exchanger includes a first heat exchange module and a second heat exchange module, as heat exchange modules each including a plurality of heat transfer tubes and a securing connector that holds the heat transfer tubes.
Atsushi MORITA, Tsuyoshi MAEDA, Akira YATSUYANAGI, Akira ISHIBASHI
Filed: 6 Nov 20