Nec Corporation

Mitsubishi Heavy Industries Limited

Nissan Jidosha Kabushiki-kaisha

Taisuke Nakamura

Takeshi Matsuo

Shinsuke Sato

Yasushi Okano

Shigeto Hirai

Chuuhachi Gotou

Tomohiro Numajiri

Shinya Momokawa

Akihiro Sugita

Minoru Yoshida

Provided is a wind turbine generator in which the intake air temperature of an air-cooled heat exchanger disposed in a nacelle is decreased to allow efficient heat exchange. A wind turbine generator that generates electric power in such a manner that a rotor head that rotates when receiving wind power drives a generator installed inside a nacelle, the nacelle being installed at the upper end of a tower that is vertically erected on a foundation, and the wind turbine generator including a closed-circuit lubricating-oil circulation system in which lubricating oil circulates through devices installed inside the nacelle, wherein an air-cooled heat exchanger installed in the lubricating-oil circulation system to cool the lubricating oil by heat exchange with air is provided in a region separate from nacelle air.

Wind turbine generator including air-cooled heat exchanger

A wind power generating apparatus provided with heat exhausting measures for an in-rotor-head device is provided. In a wind power generating apparatus in which a rotor head that rotates upon receiving wind power on a wind turbine blade drives a generator that is installed inside a nacelle and thereby generates electric power, the nacelle is installed on an upper end portion of a tower that is erected on a foundation, and a hub control panel is installed inside the rotor head, a ventilating fan that forms a flow inside and outside of an enclosure of the hub control panel is provided in the enclosure.

Wind power generating apparatus

Vehicle body, toy replica and/or other replicas

Incoming call tones and program numbers as numbers used to specify respective incoming call tones are stored in a memory of a cellular phone so as to be set in correspondence to each other. The program numbers are used to specify corresponding incoming call tone melodies, data of which is stored in the memory. A control circuit of the cellular phone, whenever an incoming call is received, increments a value of a counter indicating the corresponding program number by one, and uses an incoming call tone corresponding to the program number corresponding to the value of the counter.

Cellular phone and incoming call reception informing method

Current flowing through a plurality of light emission diodes is individually controlled, thereby an image with a desired color is displayed according to color lights emitted from the light emission diodes. A sum of current flowing through the light emission diodes is maintained at a predetermined current, thereby brightness of the image is maintained at a predetermined brightness.

Display device, portable electronic device and method of controlling display device

In a substrate on which a ball grid allay type electrical part is mounted includes a substrate body, a normal land, an integrated land and a connection reinforcement section. The substrate body provided with a ball grid allay type electrical part. On the normal land, a normal electrode of the ball grid array type electrical part is connected. On the integrated land, a plurality of integrated electrodes of the ball grid allay type electrical part is connected. The connection reinforcement section connects to the integrated land to the substrate body

Substrate on which ball grid array type electrical part is mounted and method for mounting ball grid array type electrical part on substrate

A foldable portable telephone set is foldable so as to be conveniently carried, and allows a speech communication when it is open. A light-emitting portion which emits light when an incoming call is received, and a light-detecting portion which detects light from the light-emitting portion. When the telephone set is folded, the light-detecting portion can detect light from the light-emitting portion. When the telephone set is open, the light-detecting portion cannot detect light from the light-emitting portion. This foldable portable telephone set includes an automatic off-hook function. Hence, after light emission of the light-emitting portion is started when an incoming call is received, if light from the light-emitting portion is detected once by the light-detecting portion but is not detected by the light-detecting portion again immediately thereafter, the foldable portable telephone set automatically shifts to a speech communication mode even if speech communication start operation is not performed.

Foldable portable telephone set with automatic off-hook function

A wireless device includes a switching portion which has a common switch (,) operated in both transmission and reception of radio signals and a reception dedicated switch (,) operated only in signal reception. A switch controller (,) is also included in the wireless device and controls the common switch to connect between the transmitting portion and one of the antennas that is selected and further controls the reception dedicated switch to separate the receiving portion from the common switch on signal transmission. The switch controller further controls both the common switch and the reception dedicated switch to connect between the receiving portion and one of the antennas that is designated on signal reception.

Wireless device for high power transmission radio signal

A first bypass capacitor and a second bypass capacitor are connected in series between an input terminal and an output terminal for high frequency signals. A quart-wave line and a diode are connected between the connecting point of the first and second bypass capacitors and the ground, and a choke coil is connected between the connecting point and a D.C. voltage input terminal. When input signals are not to be attenuated, a D.C. voltage is fed from the D.C. voltage input terminal, and no D.C. voltage is fed when the signals are to be attenuated.

Attenuating circuit using quarter-wave lines

A radio receiving apparatus includes a high-frequency amplifier, an intermediate-frequency amplifier, a reception electric field strength detector, and a control section. The high-frequency amplifier is connected to a signal line of a reception system for a radio signal and can be disconnected from the signal line. The intermediate-frequency amplifier is connected to the signal line on an output side of the first circuit element and can be disconnected from the signal line. The reception electric field strength detector detects the reception electric field level of a radio signal. The control section performs control to disconnect at least one of the first and second circuit elements from the signal line and also performs control to stop supplying power to the disconnected circuit element in accordance with the electric field level detected by the reception electric field strength detector.

Radio receiving apparatus having current consumption reducing function

A circuit selection device includes a first terminal, a plurality of transmission lines, a plurality of second terminals, a plurality of loads for impedance matching, and a plurality of switches. An RF signal is input/output to/from the first terminal. Each transmission line has one end connected to the first terminal. Each of the second terminals is arranged in correspondence with the other end of each of the transmission lines to selectively input/output an RF signal input/output to/from the first terminal. Each load is arranged in correspondence with the other end of each of the transmission lines. Each switch is switched/connected to one of the second terminal and the load which correspond to the other end of each of the transmission lines. When one of the switches is switched to the second terminal side, the remaining switches are switched to the load side.

Circuit selection device

A mobile telephone receiver, utilized in a cellular communications system, is provided with a group of IF bandpass filters which are arranged in parallel and which respectively have different passbands with each other. The IF filter group allows an incoming IF signal to be filtered out using one of the IF bandpass filters. A signal contamination determiner is operatively coupled to the IF filter group and detemines a degree of signal contamination by examining a signal which has passed through the IF. bandpass filter selected for filtering the incoming IF signal. The selector changes the selection of the IF bandpass filters according to the degree of signal contamination.

Growing community of inventors

Tokyo, Japan

Taisuke Nakamura