Dainippon Ink and Chemicals, Incorporated

Kawamura Institute of Chemical Research

Hitachi, Ltd.

Sharp Corporation

Dainippon Ink Institute of Chemical Research

Kawamura Institute of Chemical Res.

Yoshi Arai

Toru Fujisawa

Sadao Takehara

Jitsuo Kurokawa

Hisato Sato

Yutaka Fujita

Hiroshi Ogawa

Kazuo Kimura

Haruyoshi Takatsu

Masashi Osawa

Tadao Shoji

Masayuki Tazume

Takasi Yamaki

Katsuhiko Morita

Kazunori Maruyama

Kiyohumi Takeuchi

Kazuhisa Toriyama

Tamihito Nakagomi

Koichiro Adachi

Tesshu Miyahara

Hisashi Yamamoto

Fumiaki Funada

Masanao Ohzeki

Yukichi Toyoshima

Masatoshi Sakuma

Akio Kojima

Shoichi Kinoshita

Eizi Hayakawa

Tomio Wada

A liquid crystal device comprising a pair of substrate, at least one of them being transparent, and a light-control layer supported therebetween, wherein said light-control layer comprises a liquid crystal material showing positive dielectric anisotropy and a transparent solid substance, said liquid crystal material forming a continuous phase, and said transparent solid substance existing in said continuous phase in the form of dispersed particles or a three-dimensional network. The device exhibits a clear threshold voltage, a high fast response time and a highly contrast display with a low applied voltage.

Liquid crystal devices and process for producing the same

A liquid crystalline compound represented by formula ##STR1## wherein R denotes an alkyl or alkoxy group having 1 to 20 carbon atoms,

Liquid crystalline compounds having substituents

An optically active carboxylic acid derivative represented by the general formula ##STR1## wherein R represents a normal alkyl group having 1 to 20 carbon atoms, m and n represent 0 or 1 but are not 1 at the same time, X represents a hydrogen or halogen atom, Y represents a hydrogen or fluorine atom, provided that when Y is a hydrogen atom, X is a halogen atom, and that when n is 0, Y is ahydrogen atom, and Q* represents an optically active alkyl or 1-alkoxyethyl group having an asymmetric carbon atom.

Optically active carboxylic acid derivatives and liquid crystalline

An optically active carboxylic acid derivative represented by the general formula ##STR1## wherein R represents a normal alkyl group having 1 to 20 carbon atoms, m and n represent 0 or 1 but are not 1 at the same time, X represents a hydrogen or halogen atom, Y represents a hydrogen or fluorine atom, provided that when Y is a hydrogen atom, X is a halogen atom, and that when n is 0, Y is a hydrogen atom, and Q* represents an optically active alkyl or 1-alkoxyethyl group having an asymmetric carbon atom.

Novel liquid crystalline compounds having substituents

In a master plate for dry lithographic printing comprising (1) a substrate and (3) an ink-repellent silicone layer formed thereon, the improvement wherein a toner anchoring layers (2) composed of a resin having compatibility with an image layer (5) to be superimposed on the silicone layer (3) during image making or a resin containing an active group capable of reacting with the image layer (5) during image making is formed between the substrate (1) and the silicone layer (3), and wherein the silicone layer (3) is composed of a silicone resin containing a fluorine-containing surface-active compound of the formula

Master plate for dry lithographic printing

A nematic liquid crystal composition composed of (i) at least one compound of the general formula ##STR1## wherein R.sub.1 represents n-C.sub.m H.sub.2m+1, R.sub.2 represents n-C.sub.q H.sub.2q+1 -O, and m and q are integers of 1 to 10, (ii) at least one compound selected from the group consisting of nematic liquid crystalline compounds having positive dielectric anisotropy and homologs thereof, and (iii) as an optional ingredient, at least one compound selected from the group consisting of nematic liquid crystalline compounds having negative dielectric anisotropy and homologs thereof. This liquid crystal composition is colorless and chemically stable and has superior multiplexing drive characteristics. These properties render it useful as a display element.

Nematic liquid crystals for display devices

A process for producing a magnetic metal powder having improved oxidation resistance and magnetic properties, which comprises wetting a magnetic metal powder in an atmosphere of a non-oxidizing gas with a solution of a boron trialkoxide in a solvent being inert to the magnetic metal powder and capable of dissolving the boron trialkoxide; and thereafter evaporating off the solvent.

Process for producing magnetic metal powder

A liquid crystalline composition comprising a nematic liquid crystalline substance and as an additive, a 1,8-diazo-bicyclo(5,4,0) undecene-7 alkyl ammonium salt of benzoic acid optionally having a substituent at the paraposition.

Liquid crystalline composition

A nematic liquid crystal composition comprising (I) 4-n-valeryloxy-4'-cyanobiphenyl, (II) 4-n-caproyloxy-4'-cyanobiphenyl and (III) 4'-cyanophenyl-4-n-heptylbenzoate, and either (IV) 4'-cyanophenyl-4-n-butylbenzoate or (V) 4'-cyanophenyl-4-n-nonylbenzoate, said composition having a crystal-nematic transition temperature of -40.degree. to -20.degree. C and a nematic-isotropic transition temperature of 50.degree. to 65.degree. C.

Nematic liquid crystal composition

A liquid crystal composition comprising a nematic liquid crystal and a quaternary ammonium compound selected from the group consisting of the quaternary ammonium salts of carboxylic acids and the quaternary ammonium hydroxides.

Liquid crystal compositions

Growing community of inventors

Hasuda, Japan

Yoshi Arai