Nec Corporation

Hitachi, Ltd.

Sony Corporation

Other

Japan Aviation Electronics Industry, Limited

Citizen Watch Company, Ltd.

Nippon Electric Co., Ltd.

Mazda Motor Corporation

Hitachi Automotive Systems, Ltd.

Sony Computer Entertainment Inc.

Hitachi Chemical Company, Ltd.

Hitachi Construction Machinery Co., Ltd.

Yokogawa Electric Corporation

Sony Interactive Entertainment Inc.

Hitachi Astemo Ltd.

Takeshi Inoue

Osamu Ohnishi

Mitsuru Yamamoto

Osamu Myohga

Sadayuki Takahashi

Takayoshi Yokota

Tomohiro Ito

Yasuhiro Sasaki

Keiichiro Ohkawa

Atsushi Ochi

Youhei Kawahara

Takashi Nakahara

Kenichiro Yamane

Makoto Aikawa

Takumi Fushiki

Hiroyuki Takahashi

Kazuhisa Yamamoto

Hiroshi Sakamoto

Kenji Yamada

Yasuo Kitaoka

Mutsumi Kikuchi

Motoo Futami

Hiroshi Ogawa

Keizo Yamada

Daisuke Shiono

Masato Imai

Tetsuya Matsumoto

Masao Sakata

Kazuaki Utsumi

Takanori Yamazoe

Osamu Kuroda

Masanori Suzuki

Shuji Yamamoto

Kei Sakabe

Koichiro Tanikoshi

Hiroyuki Higaki

Hiroki Yamazaki

Shinji Iio

Mikio Bando

Yuichi Kitahara

Takayuki Wada

Kenichi Harada

Michihisa Suga

Yoichi Miyasaka

Ken Takeuchi

Masaya Horino

Masahiro Yonemoto

Shigeki Makino

Naoki Kiyohara

Mitsutoshi Honda

Takaaki Hirata

Shuko Yamauchi

Tadao Uchikawa

Ranko Inoue

Seiichi Yamagiwa

Kazuhiko Arai

Hisahiro Tanaka

Kenji Kuramoto

Harukaze Koga

Masashi Konno

Kaneo Uehara

Shoko Hatanaka

Yoshihisa Kudoh

Takuo Fujita

Mitsuhiro Nakajima

Norihiro Shinotsuka

Ryouta Doi

Toshiaki Shirai

Takeya Hashiguchi

Toshifumi Hiratsuka

Kazuhiro Murakami

Naoki Ura

Hideto Yamamoto

Eiji Kuwahara

Yasuhumi Kawado

Shinji Ikeda

Shinji Takashima

Hiroshi Kumagai

Keiji Kitane

Kazumi Hamano

Yukio Tanokura

Kazuki Yokokawa

Takashi Hara

Daiki Komatsu

Minji Sakaki

Masaharu Sakoda

Katsumi Watanabe

Koichi Zama

Takeshi Hosokawa

Shinji Imai

Daisuke Matsuo

Hachirou Kushida

Kenji Hanai

Hiroyo Hakamata

Michinori Nakamura

Naruhiko Ito

Kazuaki Teshima

Kazuaki Imaizumi

Yasushi Sawada

Hidekatsu Wada

A secondary-battery monitoring device includes: a use-state memory device that stores a transition of a load parameter indicating a use state of a secondary battery; and a battery capacity prediction device that predicts a temporal change of a battery capacity of the secondary battery on the basis of a prediction function. The prediction function is derived from a relation between growth of a film formed in an electrode surface of the secondary battery and a reduction of a precursor component of the film which is contained in an electrolyte of the secondary battery. The battery capacity prediction device determines a coefficient of the prediction function on the basis of the transition of the load parameter which is stored in the use-state memory device, and predicts the temporal change of the battery capacity of the secondary battery on the basis of the prediction function which uses the coefficient.

Secondary-battery monitoring device and prediction method of battery capacity of secondary battery

In a battery system that connects a plurality of types of batteries through a switch SW, when the switch SW is switched at a voltage (charge rate), it has been possible to increase a stored charge during charging, depending on the DC resistance of the battery. An object of the present invention is to provide switch SW switching control so that the stored charge can further be increased. A first feature of the present invention is to provide a battery system in which a first battery and a second battery are connected in parallel through the switch SW, including an estimator which estimates the charging current by measuring the resistance and OCV of each battery. The battery system can further increase the stored charge by switching to a switch SW combination that can increase the stored charge.

Battery system

Headphone

A secondary battery system capable of acquiring an SOC of a battery with a simple computation without acquiring battery characteristics is to be provided. The secondary battery system according to the present invention is adapted to acquire a momentary SOC (charging SOC) by obtaining an initial value of an SOC from a CCV acquired during a charging period and adding an integrated value of a charge or discharge current to the initial value of the SOC, acquire a momentary SOC (discharging SOC) by obtaining an initial value of an SOC from a CCV acquired during a discharging period and adding an integrated value of a charge or discharge current to the initial value of the SOC, and acquire an SOC close to a true value by averaging the charging SOC and the discharging SOC.

Secondary battery system

Provided are headphones with left and right sliders in linkage with each other. The headphones includes: a head band; a first slider that is provided on one end side of the head band and slides with respect to the head band; a second slider that is provided on the other end side of the head band and slides with respect to the head band; a connecting portion that connects the first slider and the second slider and slides the second slider in linkage with a slide operation of the first slider; and a pair of housings that are provided on the first slide portion and the second slide portion, respectively, and each house a sound output unit.

Headphones

Construction machine including: an inverter; a battery; a battery controller; a main controller controlling the inverter based on limited power modes prescribed; and a display device displaying a remaining battery electric power. The main controller calculates open circuit voltage and battery resistance values of the battery at the state of energy of the battery based on the specification information about the battery and state of energy of the battery which are input from the battery controller, calculates an amount of electric power stored in the battery in each of the limited power modes based on the open circuit voltage value and battery resistance value of the battery as well as limited power and operating voltage prescribed for each of the limited power modes, and outputs a display signal for displaying the amount of electric power stored in the battery in each of the limited power.

Construction machine and battery pack thereof

A battery system includes a plurality of battery packs connected in parallel each including a switch and a battery connected to the switch in series and a battery state determining unit determining a state of the battery. The battery state determining unit includes a disconnection determining unit controlling disconnection of the switch and a switch controller controlling open and close of the switch in accordance with a result of determining the state. The disconnection determining unit calculates allowable stop and demanded stop periods of the battery packs on the basis of the past data, season data, and allowable currents of the batteries and transmits data to the switch controller when the demanded stop period is smaller than the allowable stop period, and the switch controller makes the switch in an open state.

Electronic apparatus that can suppress the operating voltage of an incorporated semiconductor integrated circuit to a low voltage is provided. Electronic apparatusincludes a power supply circuit, a semiconductor integrated circuitthat operates by a supply voltage supplied from the power supply circuit, and a temperature sensorthat measures the temperature of the semiconductor integrated circuit. The power supply circuitdecreases the supply voltage according to a rise in the measured temperature.

Semiconductor integrated circuit

A semiconductor element or mobile terminal stores a user's biometric information pattern used for execution of a biometric authentication process and the residual number of trials indicating the number of allowed failures in the biometric authentication process, sends processing data to an external device so that the external device can use the processing data when the external device executes part of the biometric authentication process, and decreases the residual number of trials by a predetermined value while the processing data is output to the external device after start of communication with the external device.

Semiconductor element, biometric authentication method, biometric authentication system and mobile terminal

A biometric authentication systemincludes an IC cardincluding a reading unitsending generation information back to a terminal and a writing unitwriting biometric information in a storage area indicated in a write instruction, and a terminalincluding a card generation acquisition unitreceiving from the IC card the generation information, a device generation acquisition unitreceiving from a biometric authentication device the generation information, a biometric information acquisition unitreceiving biometric information from the biometric authentication device, a first write instruction unitidentifying a storage area of the same generation as the generation of the biometric authentication device and transmitting a write instruction of the biometric information to the IC card, and a second write instruction unittransmitting a write instruction for a storage area of the oldest generation to the IC card.

Biometric authentication method, biometric authentication system, IC card, and terminal

The present invention relates to a vehicle speed control device for controlling a speed of a vehicle. The vehicle speed control device includes a current location error estimation section for extracting area attribute information from the map information, for producing a location error probability distribution, a target speed calculation section for receiving the target speed correction instruction, for accessing preset data that shows an acceleration or a gradient of an acceleration which allows a driver not to feel uncomfortable, and for computing target speed values at nodes over the distance in such a way that the target speed values create a continuous curve, and a speed control section for sensing a speed of a vehicle, and for controlling a driving torque of the vehicle so that the sensed speed traces the continuous curve composed of the target speed values.

Vehicle speed control device, method of determining target speed by using the device, and program executing the method

Disclosed herein is an electronic equipment unit having a cradle, electronic equipment detachably mounted to the cradle, and a connecting mechanism for detachably connecting the electronic equipment to the cradle. The electronic equipment has a housing, an antenna case connected to the back side of the housing, and a recess formed on the back side of the housing for receiving the antenna case. The antenna case is pivotable between a retracted condition where the antenna case is retracted in the recess and a raised condition where the antenna case is raised from the back side of the housing. The cradle has a connecting portion adapted to be received in the recess in the raised condition of the antenna case. The connecting portion is detachably connected to the recess by the connecting mechanism in the condition where the antenna case is raised and the connecting portion is received in the recess.

Electronic equipment unit

A vibratory gyroscope including a vibrator () integrally having a plate-like body portion () spreading along a reference plane, three drive arms () extending in a first direction from the body portion along the reference plane, and two detection arms () extending in a second direction opposite to the first direction from the body portion along the reference plane. The three drive arms are composed of two exciting drive arms () that are excited in mutually opposite phases in the reference plane and a non-exciting drive arm () located between the two exciting drive arms. Each of the three drive arms has an arm width in a width direction along the reference plane and perpendicular to the first direction. Each of the two detection arms has an arm width greater than that of the drive arm in the width direction, thereby suppressing generation of vibrations along the reference plane.

Vibratory gyroscope

A coil springis provided in an empty room (inside of a fixing roller) of a main bodyof a roller. The coil springis in contact with an inside wallsurrounding the empty room of the roller main bodyand pushes the inside walloutward. The coil springand the inside wall faceare coated with a black filmexcept the contact portionof the coil springand the inside wall

Fixing roller, and method of producing the same, fixing device and image forming device

A six-legged type piezoelectric vibration gyroscope having a pair of exciting arms extending from a body () in a first direction (A) with a space therebetween, one non-exciting arm () extending in the first direction between the exciting arms from the body, a pair of detecting arms () extending from the body in a second direction (A) with a space therebetween, and one non-detecting arm () extending in the second direction between the detecting arms from the body. The exciting arms are coupled with a drive-side electrode. The detecting arms are coupled with a detection-side electrode. The exciting arms, non-exciting arm, detecting arms, and non-detecting arm respectively consist of a piezoelectric. The respective exciting arms differ in width size from the non-exciting arm. The respective exciting arms differ in width size from the respective detecting arms. The respective exciting arms differ in width size from the non-detecting arm.

Six-legged type piezoelectric vibration gyroscope

Growing community of inventors

Tokyo, Japan

Takeshi Inoue