997 patents
Page 43 of 50
Utility
Semiconductor device and method of manufacturing semiconductor device
16 Mar 20
A semiconductor layer may be subjected to etching to form a trench therein.
Takeyoshi Nishimura
Filed: 31 Mar 16
Utility
Power converter for railroad vehicle
16 Mar 20
A power converter for a railroad vehicle includes a first fin and a second fin having outer shapes different from each other as viewed in an alignment direction.
Akira Kamiya, Kimihisa Kaneko, Yoshihisa Uehara
Filed: 21 Jan 18
Utility
Heating and cooling device
9 Mar 20
A heating and cooling device including: an airtight processing chamber openable to load a member-to-be-processed in the airtight processing chamber; a transfer apparatus to adjust a distance between the member-to-be-processed and a cooling unit that cools the member-to-be-processed, by moving the member-to-be-processed and/or the cooling unit; an induction heating apparatus to heat the member-to-be-processed, including a induction heating coil; a cooling apparatus to cool the member-to-be-processed by cooling the cooling unit; a temperature sensor to determine a temperature of the member-to-be-processed; and a controller to control the induction heating apparatus and the cooling apparatus based on the temperature determined by the temperature sensor.
Shoji Yokoyama, Takeshi Matsushita, Hiroaki Nakahara, Masaki Takeuchi, Takenori Wada, Masahiro Momose, Masahiro Kikuchi, Yoshio Igarashi, Mitsuhiro Naruse
Filed: 3 Apr 17
Utility
Electrophotographic photoreceptor, method for producing the same, and electrophotographic device including the same
9 Mar 20
The invention provides an electrophotographic photoreceptor, which undergoes little abrasion over long term use and is able to develop a stable image, as well as a method of producing the same and an electrophotographic device including the same.
Shinjiro Suzuki, Tomoki Hasegawa, Fengqiang Zhu, Yuji Ogawa, Hirotaka Kobayashi
Filed: 1 Apr 18
Utility
Method of manufacturing silicon carbide semiconductor device
9 Mar 20
In a vertical MOSFET of a trench gate structure, a high-concentration implantation region is provided in a p-type base region formed from a p-type silicon carbide layer formed by epitaxial growth, so as to include a portion in which a channel is formed.
Setsuko Wakimoto, Masanobu Iwaya
Filed: 16 May 18
Utility
Drive circuit for insulated-gate semiconductor element
2 Mar 20
A drive circuit for an insulated-gate semiconductor element includes a current source which generates a current to be supplied to a gate of the insulated-gate semiconductor element, a current output circuit which controls supply of the current generated by the current source to the gate of the insulated-gate semiconductor element in accordance with a drive signal, an output current control circuit which controls a magnitude of the current generated by the current source in accordance with a control voltage according to an operating temperature of the insulated-gate semiconductor element, and a control voltage detection terminal which is provided in the output current control circuit and enables detection of the control voltage from outside.
Takahiro Mori
Filed: 30 Jul 18
Utility
Coin processing apparatus
2 Mar 20
A coin processing apparatus includes: a slit provided on a downstream-side conveyance path or at an entry of the downstream-side conveyance path in a coin drawing section for a storage to pass a coin having a coin diameter equal to or less than a diameter of a target type of coin to be drawn; a coin bias mechanism configured to bias a conveyed coin; an outer diameter sensor configured to detect whether a coin passing through the downstream-side conveyance path has an outer diameter of a target type of coin to be drawn; a material sensor configured to detect material of a coin passing through the downstream-side conveyance path; and a hole sensor that detects presence or absence of a hole of a coin passing through the downstream-side conveyance path.
Nobuyuki Niizuma
Filed: 21 May 18
Utility
Semiconductor device and method of manufacturing semiconductor device
2 Mar 20
A method of manufacturing a semiconductor device having an insulated gate bipolar transistor portion and a freewheeling diode portion.
Souichi Yoshida, Seiji Noguchi, Kenji Kouno, Hiromitsu Tanabe
Filed: 24 Aug 17
Utility
Method of manufacturing silicon carbide semiconductor device
2 Mar 20
A method of manufacturing a silicon carbide semiconductor device includes forming a first silicon carbide layer of a first conductivity type on a front surface of a silicon carbide semiconductor substrate.
Makoto Utsumi, Yasuhiko Oonishi, Fumikazu Imai
Filed: 3 Jan 19
Utility
Semiconductor device and semiconductor module
2 Mar 20
A p+-type anode region that forms a contact of an anode electrode on a front surface of a semiconductor substrate and a p+-type starting substrate of a rear surface of the semiconductor substrate is formed on the front surface of the semiconductor substrate, whereby an up-anode type vertical diode is configured.
Yoshiaki Toyoda, Hideaki Katakura
Filed: 23 Apr 18
Utility
Dimmer and power converter
2 Mar 20
A dimmer, according to an embodiment, includes a reference voltage circuit configured to output a reference voltage at a constant voltage when a power source voltage is higher than or equal to a predetermined threshold value, and output the reference voltage at a voltage proportional to the power source voltage when the power source voltage is lower than the predetermined threshold value.
Jun Yabuzaki
Filed: 25 Jun 18
Utility
Surge suppression circuit and inverter drive motor system
2 Mar 20
The present invention relates to a surge suppression circuit connected between an output end of an inverter INV and a cable 100 to drive a motor M that is connected to the output end of the inverter INV via the cable 100, and relates to a motor drive system in which the surge suppression circuit is used.
Miwako Fujita
Filed: 23 Jul 18
Utility
Semiconductor device
2 Mar 20
A semiconductor device includes a power semiconductor switching element, a comparator circuit, a filter circuit and an erroneous-detection prevention circuit.
Sho Nakagawa
Filed: 27 Dec 18
Utility
Power converter including component compartment and partition with airflow openings
2 Mar 20
A power converter includes a component compartment in which heat-generating components are housed, a duct for exhausting heat generated by the heat-generating components away from the component compartment, and a partition arranged between the component compartment and the duct in order to divide apart the component compartment and the duct.
Tomo Kurozaki, Keita Koshii
Filed: 6 Dec 18
Utility
Beverage supply device
24 Feb 20
A beverage supply device can suppress a decline of a temperature of hot water remaining in a hot-water delivery piping for guiding the hot water pumped up by a pump to a beverage extraction unit without increasing a cost.
Yoshika Tanida
Filed: 7 Jul 16
Utility
Method of manufacturing a silicon carbide semiconductor device including depositing a second silicon carbide semiconductor on an etched silicon carbide base region
24 Feb 20
A silicon carbide semiconductor device, including a silicon carbide semiconductor substrate of a first conductivity type, a first silicon carbide semiconductor deposition layer of the first conductivity type, deposited on a front surface of the silicon carbide semiconductor substrate and having an impurity concentration that is lower than that of the silicon carbide semiconductor substrate, a base region of a second conductivity type, selectively provided in the first silicon carbide semiconductor deposition layer at a front surface thereof, and a second silicon carbide semiconductor deposition layer of the second conductivity type, deposited on the front surface of the first silicon carbide semiconductor deposition layer.
Takeshi Tawara
Filed: 30 Jan 17
Utility
Coin storage device
24 Feb 20
A coin storage device includes: storage compartments that store therein coins by denomination; and screw-type conveying members, installed for the respective storage compartments, each of the screw-type conveying members including a shaft having an elongated shape and having an outer circumferential surface provided with a blade portion that protrudes radially outwards in a spiraling shape, and conveying coins toward a front side by being rotated in one direction about a central axis of the shaft.
Yoshihiro Taniguchi, Masashi Nagata, Yoshiyuki Fukushima, Takao Okuhara
Filed: 23 Jan 19
Utility
Controller for operating parallel converters in constant voltage, constant power and constant current modes to charge a battery
24 Feb 20
A battery charger is provided for charging the battery with the use of plural power converters, and the current balance control can be eliminated in the constant voltage charging operation.
Masakazu Gekinozu
Filed: 26 May 16
Utility
Load control system
24 Feb 20
In this load control system, when linkage security authentication based on hardware and software by linkage between at least a controller and a power converter has been established, a function that enables the power converter to be used for a predetermined purpose is generated by the software.
Nobuo Itoigawa, Koichi Tanaka
Filed: 23 Feb 17
Utility
Driving circuit and semiconductor module
24 Feb 20
Provided is a driving circuit for driving a switching element in accordance with an input signal.
Akira Nakamori
Filed: 26 Feb 17