997 patents
Page 24 of 50
Utility
Driving apparatus and switching apparatus
7 Sep 21
Provided is a driving apparatus that includes a gate driving circuit that turns off a first semiconductor element upon receiving a turn-off signal, a measuring circuit that measures a parameter according to a voltage applied to the second semiconductor element, a timing generating circuit that generates a timing signal if the parameter satisfies a first condition during a time period in which the first semiconductor element is tuned off; and a driving condition change circuit that, in response to the timing signal, further decreases a changing speed of a gate voltage of the first semiconductor element than a reference speed during the time period in which the first semiconductor element is tuned off, wherein the gate driving circuit turns off the first semiconductor element in response to that the parameter satisfies a second condition during a time period in which the first semiconductor element is tuned on.
Kunio Matsubara, Tsuyoshi Nagano
Filed: 19 Feb 20
Utility
Binary power generation system and control apparatus
31 Aug 21
Provided is a new binary power generation system that, in the binary power generation system using exhaust gas as a heating source, maximizes the power generation amount while considering the sulfuric acid dew point temperature of the exhaust gas.
Shinya Ui, Tadashi Komatsu, Kuniyuki Takahashi
Filed: 20 Jun 17
Utility
Semiconductor module and vehicle
31 Aug 21
A semiconductor module is provided to downsize the module, the semiconductor module including a terminal case made of a resin for housing a semiconductor chip; and a cooling portion including a refrigerant circulating portion through which a refrigerant flows and a joining portion surrounding the refrigerant circulating portion, the refrigerant circulating portion being arranged below the terminal case, and the cooling portion being arranged directly or indirectly in close contact with the terminal case at the joining portion, wherein the terminal case is provided above the joining portion, and has a side wall provided so as to surround the semiconductor chip when seen in a top view, and a temperature sensor for sensing a temperature of the refrigerant is provided on the side wall.
Shinichiro Adachi
Filed: 1 Aug 19
Utility
Semiconductor device
31 Aug 21
A semiconductor includes a semiconductor element, a connecting terminal electrically connected to the semiconductor element, and a case including an opening space for housing the semiconductor element, a frame which surrounds the opening space and in which the connecting terminal is partially embedded, and a terminal arrangement portion protruding from the frame towards the opening space.
Seiichi Takahashi
Filed: 30 Jan 19
Utility
Semiconductor device having circuit board to which contact part is bonded
31 Aug 21
A semiconductor device includes: a multilayer substrate which includes a circuit board and an insulating plate on which the circuit board is formed; and a contact part having a cylindrical hollow hole therein and an open end bonded to a bonding area on the front surface of the circuit board via bonding material.
Rikihiro Maruyama, Masaoki Miyakoshi, Masayuki Soutome, Kazuya Adachi, Takeshi Yokoyama
Filed: 25 Feb 20
Utility
Member for semiconductor device
31 Aug 21
A member for semiconductor device includes a metal portion configured to be bonded to another member by solder, and a treated coating covering a surface of the metal portion, the treated coating including a treatment agent.
Shinji Sano, Yoshihiro Kodaira, Masayuki Soutome, Kazunaga Onishi
Filed: 8 Nov 18
Utility
Semiconductor device
31 Aug 21
Provided is a semiconductor device that includes: a first conductivity type anode region provided in the semiconductor substrate in the diode region; a second conductivity type drift region that is located below the anode region in the semiconductor substrate; a second conductivity type accumulation region that is located between the anode region and the drift region in a depth direction of the semiconductor substrate; and an insulating film that includes a plurality of contact portions extending in a first direction and is provided on an upper surface of the semiconductor substrate; wherein the plurality of contact portions include a first contact portion provided in the diode region; and the first contact portion includes a first non-overlapping region in which an end of the first contact portion and the accumulation region in the first direction do not overlap in the depth direction.
Yuichi Harada, Misaki Takahashi, Kouta Yokoyama
Filed: 27 Jan 20
Utility
Semiconductor device
31 Aug 21
In an effective region of an active region, main semiconductor elements that are vertical MOSFETs and a source pad of the main semiconductor elements are provided.
Yasuyuki Hoshi
Filed: 24 Jan 20
Utility
DC-DC converter
31 Aug 21
A DC-DC converter includes current resonant converter units connected in parallel.
Masakazu Gekinozu
Filed: 25 Feb 20
Utility
Semiconductor device having terminals and semiconductor elements electrically connected to a respective side surface of the terminals
24 Aug 21
The semiconductor device includes, on the cooling substrate, first main terminal, second main terminal, third main terminal, and fourth main terminal, each having a polygonal-shape.
Hideyo Nakamura
Filed: 3 Jun 19
Utility
Detection device, power conditioner, detection method, and storage medium
24 Aug 21
A detection device includes a first detection unit that detects whether a power source may be in an islanding operation based on a frequency of an power supplied from a power source connected to a system, a power processing unit that changes the amount of power supplied from the power supply to the system in response to that the first detection unit detects that the power source may be in the islanding operation, a second detection unit that detects a voltage of a system with the power supply amount having been changed, and a disconnection processing unit that determines whether to disconnect a power source from a system in response to a change in a voltage of a system with the power supply amount having been changed.
Takayuki Nagakura
Filed: 29 Jul 19
Utility
Drive signal generating circuit and power supply circuit
24 Aug 21
A power supply circuit having a rectifier circuit that rectifies an AC voltage, an inductor, a transistor that controls an inductor current flowing through the inductor, a drive signal generating circuit that generates a drive signal based on the inductor current and an output voltage generated from the AC voltage, and a drive signal output circuit outputting the drive signal.
Ryuji Yamada
Filed: 26 Dec 19
Utility
Semiconductor device
17 Aug 21
A semiconductor device includes a semiconductor chip including a semiconductor substrate with a top surface electrode deposited on a top surface of the semiconductor substrate.
Takafumi Yamada
Filed: 1 Jun 20
Utility
Method of manufacturing semiconductor device and semiconductor device
17 Aug 21
There is provided a method of manufacturing a semiconductor device including: forming a cell having a plurality of trench portions, a contact region, being formed by implanting a dopant of a second conductivity type by a first depth and a first implantation amount, and an emitter region, the cell having a length, which is smaller than or equal to a width between the trench portions, the emitter region, having a length, which is greater than a length of the contact region; forming a contact hole, having an opening width which is smaller than the length of the contact region; and forming a plug region by implanting the dopant of the second conductivity type by a second depth, being shallower than the first depth, and a second implantation amount, being greater than or equal to the first implantation amount, in the depth direction of the semiconductor substrate.
Tetsutaro Imagawa
Filed: 24 May 20
Utility
Semiconductor device
17 Aug 21
A semiconductor device includes a first trench section provided from an upper surface of a semiconductor substrate to inside the semiconductor substrate; a base region of a second conductivity type in direct contact with the first trench section between the upper surface of the semiconductor substrate and a drift region; a first accumulation region of a first conductivity type that is provided between the base region and the drift region and that has a higher doping concentration than the drift region; a second accumulation region of a first conductivity type that is provided at a position deeper than the first accumulation region and that has a higher doping concentration than the drift region; and an intermediate region of a second conductivity type that is provided between the first accumulation region and the second accumulation region, where the second accumulation region has a first opening section.
Tatsuya Naito
Filed: 23 Apr 19
Utility
Power module and reverse-conducting IGBT
17 Aug 21
A power module which includes a power semiconductor module chip, a driver chip and a charge storage element.
Shigeki Sato
Filed: 30 Aug 19
Utility
Semiconductor device and manufacturing method of semiconductor device
17 Aug 21
There is provided a semiconductor device comprising: a semiconductor substrate; an emitter region of a first conductivity type provided inside the semiconductor substrate; a base region of a second conductivity type provided below the emitter region inside the semiconductor substrate; an accumulation region of the first conductivity type provided below the base region inside the semiconductor substrate, and containing hydrogen as an impurity; and a trench portion provided to pass through the emitter region, the base region and the accumulation region from an upper surface of the semiconductor substrate.
Tatsuya Naito
Filed: 10 Aug 20
Utility
Uninterruptible power supply
17 Aug 21
In an uninterruptible power supply, first connection members that connect input side-switches of a plurality of uninterruptible power supply modules to each other and that connect output-side switches of the plurality of uninterruptible power supply modules to each other, and second connection members connected in parallel to the first connection members are disposed at positions accessible from a front side of the uninterruptible power supply modules.
Seiitsu Kin, Daisuke Kawasaki, Yoshihiko Yamagata, Hiroki Muratsu, Tomo Kurozaki, Yosuke Iwamaru, Keita Koshii
Filed: 4 Jul 17
Utility
Door control device and door control method
17 Aug 21
A door control device includes: a speed control unit configured to perform speed control of an electric motor that drives a door; a speed detection unit configured to detect a speed of the door; and an obstruction detection unit configured to detect obstruction between the door and a door pocket, upon a value of the speed of the door detected by the speed detection unit decreasing by a first predetermined value or more with respect to a speed command value in the speed control during a door opening operation of the door.
Satoru Ozaki, Kenji Fujita
Filed: 26 Mar 19
Utility
Magnetic recording medium having magnetic layer with a granular structure
10 Aug 21
The invention provides a magnetic recording medium including a magnetic layer or a magnetic recording layer having a granular structure in which magnetic crystal grains are well separated from each other.
Tomohiro Moriya, Hitoshi Nakata, Takehito Shimatsu
Filed: 31 May 18