Canon Kabushiki Kaisha

Sony Corporation

Kabushiki Kaisha Toshiba

Ulvac, Inc.

Sony Semiconductor Solutions Corporation

Nippon Seiko Kabushiki Kaisha

Aida Engineering, Ltd.

Nec Corporation

Nippon Telegraph and Telephone Corporation

The Torrington Company

Namco Limited

Namiki Seimitsu Houseki Kabushiki Kaisha

Aida Engineering Co., Ltd.

Toshio Suzuki

Nobuhiko Shigyo

Shuji Koyama

Makoto Shibata

Manabu Sueoka

Takumi Suzuki

Hisashi Yamamoto

Tomonari Tanaka

Yukio Kawajiri

Hirokazu Komuro

Keiichi Murakami

Ryota Kashu

Shuichi Yamaguchi

Toru Nakakubo

Tadayoshi Inamoto

Masayuki Katakura

Yasuto Kodera

Motoyasu Yano

Moichi Chiba

Masahiro Ichihashi

Kazutoshi Ono

Kazumasa Nishimura

Kenya Kondou

Hideaki Mashio

Kenji Hashimoto

Syou Mitsuishi

Hitoshi Yoshino

Yasuyuki Tamura

Junichi Kobayashi

Hisanobu Kanamaru

Takashi Nakano

Asao Saito

Toshihiro Mori

Toshio Nojima

Nobuo Kobayashi

Yohei Nakamura

Sakai Yokoyama

Shinan Wang

Naoto Sasagawa

Ryoichi Koizumi

Toshiki Mori

Itaru Murakami

Nobuyuki Ishinaga

Kenichi Okuno

Tomohide Aoyagi

Tsunenori Soma

Tadayoshi Uehara

Masami Yokota

Kouzi Tsukamoto

Hiroyasu Tagami

Kazuto Kobayashi

Hirotsugu Kodama

Hironobu Konishi

Hideaki Inoue

Kouji Shibayama

Yoshikatsu Jingu

Hideo Maeda

Atsuhide Suzuki

Ryou Oda

Yoriharu Murata

Chikashi Itoh

Takeshi Kogawa

Sadayuki Nishiki

Hisao Takahashi

Teruya Fujii

Yoshihiro Sugimoto

Hideo Ouchi

Hitoshi Odate

Masatomo Okamoto

Naoto Yanase

Koji Shibayama

Koichi Hashikaki

Seigou Sakai

Daisuke Ide

Manabu Komiyama

Provided are a power supply circuit and a transmitting device that can achieve lowering of power supply voltage. Provided is a power supply circuit including a current feedback unit, in which the current feedback unit has two p-type MOS transistors, a control element, and a first resistor, the two p-type MOS transistors and the control element configure a current turnback circuit that turns back the current, current substantially the same as the reference current in the circuit flows through the control element and the first resistor, and the output voltage is determined at least depending on the first resistor and the reference current.

Power supply circuit and transmitting device

Duty signal ratio and signal generation circuits with clock signal duty ratio stabilization under decreased power supply conditions are disclosed. In one example, a duty ratio correction circuit includes an inverting buffer, a capacitor, a low pass filter, an error amplifier, and an adjusting unit. The capacitor adjusts the rising and falling times of an inverted signal output from the inverting buffer. The low pass filter extracts a low frequency component of the inverted signal. The error amplifier adjusts a duty ratio of the inverted signal by controlling at least one of an output source current and an output sink current of the inverting buffer on the basis of a difference between the extracted low frequency component and a reference signal. The adjusting unit adjusts the control of the inverting buffer by the error amplifier.

Duty ratio correction circuit and signal generation circuit

A charge pump circuit by which fundamental issues involved in the voltage feedback type charge pump circuit have been solved is realized. A power supply circuit includes a charge pump circuit, a feedback circuit feeding an output of the charge pump circuit back to an input of the charge pump circuit, a first current source causing a constant current to flow through the feedback circuit, a MOS transistor element interposed in a middle of the feedback circuit, a resistor element interposed at a position closer to the output of the charge pump circuit than the MOS transistor element in the feedback circuit, a bias circuit applying a constant voltage to a control terminal of the MOS transistor element, and a control section controlling a value of the constant current which the first current source flows through the feedback circuit.

Power supply circuit comprising a charge pump circuit and a feedback circuit for the charge pump circuit

An object of the present technology is to stably operate a power supply circuit. A charge switch is connected to a first terminal of a capacitor and charges the capacitor with an input voltage on the basis of a control signal inputted to a control terminal. A discharge switch is complementary with the charge switch, is connected to the first terminal of the capacitor, and discharges on the basis of the control signal inputted to the control terminal the voltage charged to the capacitor, thereby generating an output voltage. A charge control signal converting section converts a charge control signal that controls the charge into a control signal referenced to the input voltage and inputs the resulting control signal to the control terminal of the charge switch. A discharge control signal converting section converts a discharge control signal that controls the discharge into a control signal referenced to the output voltage and inputs the resulting control signal to the control terminal of the discharge switch. A pulse voltage supplying section supplies a pulse voltage to a second terminal. A control signal generating section exclusively generates the charge control signal and the discharge control signal and supplies the charge control signal and the discharge control signal.

Power supply circuit and power supply apparatus

A vacuum pump includes a pump main body and a sound muffling device. The pump main body includes a housing including an intake port and an exhaust port, and a rotor that is rotatably arranged inside the housing and transports gas from the intake port to the exhaust port. The sound muffling device includes a casing, a first passage portion, and a second passage portion. The casing includes an opening end portion that is airtightly connected to an outer wall surface of the housing, a bottom wall portion that faces the opening end portion, and a peripheral wall portion, the casing defining an expansion chamber by the outer wall surface of the housing and respective inner wall surfaces of the bottom wall portion and the peripheral wall portion.

Vacuum pump

A vacuum pump according to an embodiment of the present invention includes a pump housing and a cooling pipe. The pump housing is constituted by cast iron. The cooling pipe includes an outer circumferential surface and an inner circumferential surface and is constituted by stainless steel. The cooling pipe passes through the pump housing and the outer circumferential surface which is in close contact with the pump housing, is constituted by a sensitized layer. This vacuum pump is formed such that the pump housing constituted by cast iron is casted around the cooling pipe constituted by stainless steel. The sensitized layer is provided on the outer circumferential surface of the cooling pipe, the sensitized layer is in contact with the pump housing, and the pump housing is efficiently cooled.

According to one embodiment, a multiplexing apparatus includes a processor and a multiplexer. The processor is configured to identify the version of the video transmission standard of each of input packets, and to convert the version of the packet into a reference version of a predetermined video transmission standard if the identified version is different from the reference version. The multiplexer is configured to multiplex the input packets, based on the reference version.

Multiplexing apparatus and method for video transmission

The present technology relates to a regulator circuit and a control method capable of coping with steep change in load. An output transistor provided between an input terminal and an output terminal, a differential amplifying unit that amplifies a difference between reference voltage and voltage fed back from the output transistor, a voltage feedback path, and a current feedback path are provided, in which the current feedback path includes a current source and a transistor. The transistor included in the current feedback path is formed of an NMOS, a gate is connected to an output terminal of the differential amplifying unit, a drain is connected to the current source, and a source is connected to an input terminal of the differential amplifying unit. The present technology is applicable to a regulator circuit.

Regulator circuit and control method

A liquid discharge head including plural liquid discharge portions each including a discharge port for discharging liquid, plural discharge ports forming a discharge port array; a common liquid supply flow path extending adjacent to the discharge port array on one side of the discharge port array; and a common liquid collection flow path extending adjacent to the discharge port array on the other side of the discharge port array. Each liquid discharge portion includes a pressure chamber having the discharge port, and a piezoelectric element facing the discharge port. The pressure chamber includes an inlet and an outlet end portion respectively connected to the common liquid supply and collection flow paths, and has an elongated shape connecting the inlet and outlet end portions. A plurality of inlet and outlet end portions are respectively arranged along the common liquid supply flow path and the common liquid collection flow path.

Liquid discharge head and head unit using the same

A method of manufacturing a liquid ejection head includes forming a hole in an SOI substrate including a first silicon layer, a second silicon layer, and a silicon oxide layer interposed between the first and second silicon layers such that the hole extends through the first silicon layer and the silicon oxide layer to the second silicon layer, forming a first protective film on the first silicon layer and an inner wall of the hole, forming a water-repellent film on the first protective film, attaching a support substrate to part of the water-repellent film facing away from the first silicon layer, removing the second silicon layer to remove a bottom of the hole, removing part of the water-repellent film disposed on the inner wall of the hole, and releasing the support substrate from the water-repellent film.

Method for manufacturing liquid ejection head

A semiconductor memory storage apparatus includes a packetization unit receiving content data includes a plurality of variable-length frames, and adding management data showing frame data inherent information to frame data of each variable-length frame, and further, packetizing the content data storing the frame data and the management data in each fixed-length packet for every variable-length frame, a buffer temporarily storing the content data at a fixed-length packet unit in write/read operation of the content data packetized at the fixed-length packet unit, a storage unit using a non-volatile memory as an information storage medium, and storing the content data supplied from the buffer, and a controller writing/reading content data packetized at the fixed-length packet unit with respect to the storage unit at a fixed-length packet unit.

Semiconductor memory storage apparatus and method for storing variable length frames in fixed length packets in nonvolatile memories

Provided is a coupling structure for vacuum exhaust devices each including a pump chamber and a casing that demarcates the pump chamber. The coupling structure includes a first end surface formed on a first side of the casing, and a second end surface formed on the second side of the casing, the second side being the opposite side of the first side. The casing of a first vacuum exhaust device and the casing of a second vacuum exhaust device among a plurality of vacuum exhaust devices are arranged to be directly superposed on each other such that the first end surface provided to the first vacuum exhaust device and the second end surface provided to the second vacuum exhaust device come into contact with each other. By fastening the first end surface and the second end surface, the first vacuum exhaust device and the second vacuum exhaust device are connected to each other such that gas can flow between the casing of the first vacuum exhaust device and the casing of the second vacuum exhaust device.

Coupling structure for vacuum exhaust device and vacuum exhaust system

A signal-line driving circuit configured to supply a signal voltage having the positive or negative polarity to each of signal lines connected to display cells arranged to form a matrix as cells each to be subjected to a polarity inversion driving operation according to inversion of the polarity of the signal voltage, the signal-line driving circuit including an output buffer section, wherein the output buffer section employs a positive-polarity operating amplifier, a negative-polarity operating amplifier, a first output buffer, a second output buffer, and a switch group.

Signal-line driving circuit, display device and electronic equipments

Disclosed herein is a switch for turning on/off the connection between a first terminal and a second terminal. The switch includes a first transistor circuit configured from two transistors connected in series between the first terminal and the second terminal; and a second transistor circuit having a gate terminal connected to source terminals of the two transistors and a source terminal connected to gate terminals of the two transistors. The connection between the first terminal and the second terminal is changed over between on and off states by changing over a potential to the source terminal of the second transistor circuit between high and low levels.

Switch, charge monitoring apparatus and rechargeable battery module

A liquid ejection head includes a plurality of ejection orifices which eject a liquid, a plurality of pressure chambers which store the liquid ejected from the ejection orifices and eject the liquid from the ejection orifices in accordance with expansion and contraction of an inner wall of the pressure chambers, and a plurality of recess portions which are formed around the pressure chambers, wherein a piezoelectric member is present between at least one of the recess portions and the pressure chambers.

Liquid ejection head and method of manufacturing liquid ejection head

Growing community of inventors

Kanagawa, Japan

Toshio Suzuki