Hitachi, Ltd.

Hitachi Chemical Company, Ltd.

Central Glass Company, Limited

Nof Corporation

Shin Nishimura

Yoshihiro Ashi

Yukio Nakano

Hiroyuki Nakano

Satoshi Aoki

Shinya Sasaki

Masahiro Takatori

Naohiro Sakakida

Hironari Matsuda

Keiji Tomooka

Toru Kazawa

Ryoji Takeyari

Akio Takahashi

Takefumi Okumura

Akira Nagai

Masahiro Suzuki

Norio Iwayasu

Takeshi Yabe

Akira Satou

Akio Mukoh

Hitoshi Yamamoto

Masao Suzuki

Satoru Amou

Makoto Morishima

Junichi Katagiri

Shoichi Yokoyama

Yoshinori Kawai

Norikazu Ueyama

Tetsuya Itoh

Haruo Akahoshi

Tohru Kazawa

Yuichi Satsu

Takao Miwa

Hideaki Tsushima

Takeyuki Itabashi

Akira Kageyama

Yoshihiro Nomura

Yoshiaki Okabe

Masamichi Maruta

Toshiyasu Kawai

Youichi Igarashi

Masashi Miyazaki

Tadashi Narita

Shinji Iioka

Akihiro Fukui

Tokio Hagiwara

Toshinari Takada

Hiroshi Hamana

Rituji Toba

Yoshihiro Yano

Akio Mukoo

Yoshihiko Honda

Satoru Amo

Fujiko Yutani

Kenji Tomooka

Ryoji Tateyari

Kyoji Takeyari

A polymerizable boric compound for electrochemical devices represented by the formula (1), wherein, B represents a boron atom, Z represents a polymerizable functional group, X represents a divalent Chydrocarbon group or in the absence of X, Z and B form a direct bond, AO represents a Coxyalkylene group, m and n are each the number of moles of the oxyalkylene group added and each independently stands for 2 or greater but less than 6, and Rand Reach represents a Chydrocarbon group. 

Polymerizable boric compounds, methods of producing the same, polymerizable compositions and ionic-conductive polymeric electrolytes

The disclosure discloses a polymer represented by the general formula, wherein Ris a residue of a polymer of a compound having a polymerizable unsaturated bond, Q is an organic residue of n+1 valences and connected directly or through another group to Rby means of a single bond, Mis a cation of k valence, Z is an organic function group capable of forming an ionic bond with cation Mor an organic function group having a coordination capability with M, and m, n and k are integers of one or more. The disclosure also discloses an intermediate of the polymer mentioned above.

Cationic conductor, its intermediate, and lithium secondary battery using the conductor

The object of the present invention is to provide a lithium secondary battery of high output. According to the present invention, there is provided a lithium secondary battery having a positive electrode and a negative electrode which reversibly intercalate and deintercalate lithium and an electrolyte containing an ion conductive material and an electrolytic salt, where said electrolyte contains an electrolytic salt and a boron-containing compound represented by the following formula (1) or a polymer thereof, or a copolymer of the compounds of the following formulas (2) and (3). 

Lithium secondary battery

An optical transmission system accomplishes optical transmission over a long distance by combining a multiplexing line terminal with optical amplifiers, linear repeaters, and regenerators with optical amplifiers combined together. The system also accomplishes the optical transmission over a short distance by directly connecting the linear terminals therebetween, with an electric-to-optic converter replaced by an electric-to-optic converter having a semiconductor amplifier, with an optic-toelectric converter by an optic-to-electric converter having an avalanche photodiode as light receiver, and with no use of any optical booster amplifier and optical preamplifier in multiplexing line terminal. With these, the optical transmission system can be easily constructed depending on the transmission distance required.

Optical transmission system constructing method and system

The present invention provides a cationic conductor comprising a block copolymer comprising: a polymer moiety having a structural unit represented by formula (1): wherein R represents an organic group obtained via polymerization of monomer compounds having polymerizable unsaturated linkages; Q represents an n+1-valence organic group bonded to R through a single bond; Z represents a functional group capable of forming an ionic bond to or having coordination ability to a cation; Mrepresents a k-valence cation; and n and m are each independently an integer of 1 or larger, provided that Z forms an ionic or coordination bond to a cation; and a polymer moiety having addition polymerizable monomers.

Cationic conductor

An object of the present invention is to provide a boron-containing compound capable of forming an ion-conductive polyelectrolyte having high ion-conductive properties, and a polymer of said compound. According to the present invention, there are provided a polymerizable boron-containing compound of (formula 1), a polymer thereof, a polymer of a compound of (formula 2) and a compound of (formula 3), and a polyelectrolyte for electrochemical device comprising either of these polymers and at least one electrolyte salt: 

Boron-containing compound, ion-conductive polymer and polyelectrolyte for electrochemical devices

An optical transmission system accomplishes optical transmission to a long distance by combining a multiplexing line terminal with optical amplifiers, linear repeaters, and regenerators with optical amplifiers combined together. The system also accomplishes the optical transmission to a short distance by directly connecting the linear terminals therebetween, with an electric-to-optic converter replaced by an electric-to-optic converter having a semiconductor amplifier, with an optic-to-electric converter by an optic-to-electric converter having an avalanche photodiode as light receiver, an with no use of any optical booster amplifier and optical preamplifier in the multiplexing line terminal. With these, the optical transmission system can be easily constructed depending on the transmission distance required.

A resin composition useful as an adhesive film and insulating material for a multilayer wiring substrate or electronic parts comprises (A) a polymer containing a quinoline ring represented by the formula (1) in the structure such as 6,6&prime;-bis(2-(4-fluorophenyl)-4-phenylquinoline) and 4,4&prime;-(1,1,1,3,3,3-hexafluoro-2,2-propylidene)bisphenol, and (B) a bismaleimide compound represented by the formula (2) such as 2,2-bis((4-maleimidophenoxy)phenyl)propane.

Adhesive film of quinoline polymer and bismaleimide

An optical transmission system accomplishes optical transmission over a long distance by combining a multiplexing line terminal with optical amplifiers, linear repeaters, and regenerators with optical amplifiers combined together. The system also accomplishes the optical transmission over a short distance by directly connecting the linear terminals therebetween, with an electric-to-optic converter replaced by an electric-to-optic converter having a semiconductor amplifier, with an optic-to-electric converter by an optic-to-electric converter having an avalanche photodiode as light receiver, and with no use of any optical booster amplifier and optical preamplifier in the multiplexing line terminal. With these, the optical transmission system can be easily constructed depending on the transmission distance required.

Optical transmission equipment which transmits an amplified optical data signal and an optical surveillance signal

An optical transmission system accomplishes optical transmission over a long distance by combining a multiplexing line terminal with optical amplifiers, linear repeaters, and regenerators with optical amplifiers combined together. The system also accomplishes the optical transmission over a short distance by directly connecting the linear terminals therebetween, with an electric-to-optic converter replaced by an electric-to-optic converter having a semiconductor amplifier, with an optic-toelectric converter by an optic-to-electric converter having an avalanche photodiode as light receiver, and with no use of any optical booster amplifier and optical preamplifier in the multiplexing line terminal. With these, the optical transmission system can be easily constructed depending on the transmission distance required.

Optical transmission equipment which transmits an amplified optical data

Optical wavelength multiplexing system

Growing community of inventors

Hitachi, Japan

Shin Nishimura