Mitsubishi Chemical Corporation

Ntt Docomo, Inc.

Ntt Mobile Communications Network, Inc.

Mu Ionic Solutions Corporation

Sumitomo Electric Industries, Limited

Nippon Telegraph and Telephone Corporation

Ryo Yamaguchi

Takeshi Nakamura

Takashi Fujii

Daisuke Kawakami

Shinji Uebayashi

Hiromu Watanabe

Hiroyuki Tokuda

Masahiro Takehara

Shuhei Sawa

Kanako Ito

Toshio Nojima

Koji Fukamizu

Noriyoshi Terada

Takemi Hasegawa

Minoru Kotato

Takayuki Aoshima

Tadao Nagatsuma

Hideaki Takahashi

Masamichi Onuki

Tsuyoshi Inoue

Hiroyoshi Togo

Kiyotaka Murashima

Kanako Takiguchi

Teruo Onishi

Yoshio Ebine

Taisuke Ihara

Naofumi Shimizu

Shin Nakamatsu

The present invention relates to a method for producing lithium fluorosulfonate which comprises reacting a lithium salt and fluorosulfonic acid in a nonaqueous solvent, wherein the lithium salt is a lithium salt not generating water through the reaction step.

Method for producing lithium fluorosulfonate, lithium fluorosulfonate, nonaqueous electrolytic solution, and nonaqueous electrolytic solution secondary battery

A nonaqueous electrolytic solution that includes lithium fluorosulfonate and a sulfate ion in an amount of from 1.0&#xd7;10mol/L to 1.0&#xd7;10mol/L.

A nonaqueous electrolytic solution, containing an electrolyte, a nonaqueous solvent and an aromatic carboxylate ester of formula (): 

Nonaqueous electrolytic solution and nonaqueous electrolyte secondary battery using the same

A nonaqueous electrolytic solution, containing an electrolyte, a nonaqueous solvent, an aromatic carboxylate ester and a compound is provided. The compound is fluorine-containing cyclic carbonates, sulfur-containing organic compounds, phosphonate esters, cyano group-containing organic compounds, isocyanate group-containing organic compounds, silicon-containing compounds, aromatic compounds, cyclic compounds having a plurality of ether bonds, monofluorophosphate salts, difluorophosphate salts, borate salts, oxalate salts or fluorosulfonate salts.

The present invention is to provide: a nonaqueous-electrolyte battery excellent in terms of safety during overcharge and high-temperature storability; and a nonaqueous electrolytic solution which gives the battery. The present invention relates to a nonaqueous electrolytic solution comprising an electrolyte and a nonaqueous solvent, wherein the nonaqueous electrolytic solution comprises at least one of specific compounds.

Nonaqueous electrolytic solution and nonaqueous-electrolyte battery employing the same

An object of the invention is to provide nonaqueous electrolyte batteries having high initial efficiency, excellent initial capacity and excellent overcharge safety, and nonaqueous electrolytic solutions realizing such batteries. A nonaqueous electrolytic solution includes an electrolyte and a nonaqueous solvent, and further includes an aromatic compound represented by Formula (I) (in which Rto Rare independently hydrogen, a halogen, or an unsubstituted or halogen-substituted hydrocarbon group having 1 to 20 carbon atoms, Rand Rare independently a hydrocarbon group having 1 to 12 carbon atoms, at least two of Rto Rmay be bonded together to form a ring, and Formula (I) satisfies at least one of the requirements (A) and (B): (A) at least one of Rto Ris a halogen, or an unsubstituted or halogen-substituted hydrocarbon group having 1 to 20 carbon atoms, (B) the total number of carbon atoms in Rto Ris 3 to 20). A nonaqueous electrolyte battery includes the nonaqueous electrolytic solution.

Nonaqueous electrolytic solution and nonaqueous electrolyte battery using the same

An optical probe has an optical fiber, a deflecting element, and a protective tube. The optical fiber includes a glass filament having a first diameter for transmitting light between the proximal and distal ends thereof and a resin layer for covering the filament except for the distal end thereof. The deflecting element is made of glass in a circular form having a second diameter larger than the first diameter, and it is connected with the optical fiber and has an end-face having a normal vector whose angle relative to the central axis is larger than the critical angle. The protective tube surrounds a portion of the optical fiber and the entire length of the deflecting element and is adhered to the side of a deflecting optical element, whereas the inside diameter of the part covering the optical fiber is smaller than that of the part covering the deflecting element.

Optical probe

A weighting parameter estimation system for estimating a weight parameter for the antenna elements of a mobile terminal is provided. The system includes a prohibited space forming part to which electromagnetic waves should not be directed when the mobile terminal transmits a signal in wireless communications, and a weighting parameter determination unit configured to determine the weighting parameter for each of the antenna elements of the mobile terminal such that the power level of a test wave transmitted from or received in the prohibited space becomes the minimum.

System and method for estimating weighting parameters for antenna elements

A biological tissue equivalent phantom unit to be used by the specific absorption rate measuring system for evaluating absorption of electromagnetic wave energy includes a biological tissue equivalent phantom for absorbing an electromagnetic wave. In addition, two or more electro-optical crystals are arranged at two or more measurement points in the biological tissue equivalent phantom. The electro-optical crystals have a dielectric constant that is approximately equal to that of the biological tissue equivalent phantom. Two or more optical fibers are laid in the biological tissue equivalent phantom for optically connecting each of the electro-optical crystals to an external destination.

Specific absorption rate measuring system, and a method thereof

A weight determining apparatus is disclosed. The weight determining apparatus includes two or more antenna elements that receive a test wave transmitted by one or more test wave sources prepared outside of a phantom that simulates an object that attenuates a radio wave, the antenna elements being prepared in a mobile terminal. The weight determining apparatus further includes a weight determining unit that determines weights for the antenna elements such that a signal received by the antenna elements as a whole may be maximized.

Weight determining apparatus, a weight determination method, a radiation power measuring apparatus, and a radiation power measuring method

To provide a super directional gain in a multi-element array antenna. An array antenna comprising a plurality of antenna elements A-&#x2013;A-spaced at intervals (equal to or less than a quarter of a wavelength) that provides a supergain is used. A weight generator circuit generates weight data in accordance with phase difference and amplitude difference among the antenna elements A-&#x2013;A-and directivity data of each of the antenna elements A-&#x2013;A-The generated weight data is used to weight each of the antenna elements A-&#x2013;A-

Supergain array antenna system and method for controlling supergain array antenna

A mobile communication base station determines the oncoming direction of a radio wave with a simple arrangement and transmits a narrow angle beam in this direction. Received signals from a pair of wide angle beam antennae-and-having an equal configuration and a common orientation and which are located close to each other are fed to a direction finder receiverand a communication receiver. By utilizing the fact that the both received signals have a coincident amplitude, a phase difference between the received signals is detected. The oncoming direction of the received radio wave (or the direction of a mobile station) is determined on the basis of the phase difference. A beam switcheris controlled so as to connect a transmitterto a narrow angle beam antenna (one of-to-) which is directed in the oncoming direction thus determined.

Mobile communication base station equipment

An adaptive array antenna having a plurality of array antennas including a plurality of antenna elements which are spaced at first intervals at which a large first correlation is exhibited, the array antennas being spaced at second intervals at which a second correlation is negligible, where a diversity of effects are produced, such as fading compensation, eliminating by interference waves coming from the same direction, and augmenting the gain by main beam tracking, providing one or more calibration signal coupling parts and multi-beam synthesizing circuit are so as to remove individual variations in calibration signals and to perform highly reliable calibration.

Adaptive array antenna

An adaptive array antenna for use in a base station according to the CDMA mobile communication system. A number of antenna elements greater than the number of elements (a reference number) which would be required when directional antenna elements each having a beam width which is the same as a sector angle are used to provide a service area having a sector angle which is narrower than the element beam width, or a number of antenna elements each having a beam width broader than the sector angle which is less than the reference number may be used to define a service area.

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Kanagawa, Japan

Ryo Yamaguchi