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Inventor:
Kitamura; Teruo
Address:
Katsuta, JP
No. of patents:
21
Patents:












Patent Number Title Of Patent Date Issued
RE34885 Liquid crystal polyimide alignment free of scattering domains March 28, 1995
A liquid crystal display element comprising a pair of substrates, a pair of electrodes provided on the respective substrates, at least one of which is transparent and a liquid crystal layer disposed between said substrates, the liquid crystal layer comprising a nematic liquid crystal, wh
5602420 Stacked high mounting density semiconductor devices February 11, 1997
A semiconductor device is provided with a stack of a plurality of semiconductor elements each having a bump deposited on each of surface electrodes, and a plurality of leads disposed closely adjacent to the stacked semiconductor elements, the leads being bonded to the bumps respectiv
5328643 Optically active compounds, liquid crystal composition containing said compounds, and liquid cry July 12, 1994
The invention relates to optically active compounds represented by the general formula I ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, Q.sub.1, Q.sub.2, Q.sub.3, and M are defined as in the specification, methods and intermediates for their preparation, liquid crystal comp
5269965 Optically active compounds, liquid crystal compositions comprising said compounds and liquid cry December 14, 1993
The invention relates to optically active compounds represented by the general formula ##STR1## wherein R.sub.1, R.sub.2, Q.sub.1, Q.sub.2, Q.sub.3, ##STR2## and M are defined as in the specification, methods and intermediates for their preparation, liquid crystal composition
5220447 Liquid crystal display device and phase plate therefor June 15, 1993
A liquid crystal display device comprising: a liquid crystal display element formed by holding, between two substrates at least one of which has a light-permeable electrode, a liquid crystal layer in which liquid crystal molecules of a nematic liquid crystal having positive dielectric
5194973 Liquid crystal display device and display apparatus using same March 16, 1993
A liquid crystal display device characterized in comprising a set of substrates facing each other at least one of which is transparent, transparent electrodes provided respectively to each facing plane of the substrates, a light absorbing layer held between the transparent electrodes
5167863 Optically active compound, liquid crystal composition containing said compound, and liquid cryst December 1, 1992
There are disclosed an optically active compound represented by the general formula: ##STR1## wherein n, R.sub.1, R.sub.2, R.sub.3, R.sub.4, Q.sub.1, Q.sub.2, Q.sub.3, and M are defined as in the detailed explanation, and *-marked carbon atoms are each an asymmetric carbon atom;
5157526 Unabsorbing type polarizer, method for manufacturing the same, polarized light source using the October 20, 1992
The polarizer of the present invention is composed of mediums having different refractive indices, by which ordinary light in incidented light is wholly reflected at a boundary between laminated medium I and medium II and extraordinary light is transmitted through the medium II. The medi
5067797 Liquid crystal display cell and process for producing the same November 26, 1991
A liquid crystal display cell, wherein orientation films are made of an organic polymer such as polyimide, polyamide, liquid crystal polymer having one or more mesogen groups in a main chain or side chain and produced by spreading an organic polymer solution on a water surface, is ex
5061045 Liquid crystal light modulation device and liquid crystal light modulation apparatus October 29, 1991
The present invention provides a liquid crystal light modulation device which has a cell comprising a pair of substrates at least one of which is transparent and which have electrodes and are opposed through a spacer, a ferroelectric liquid crystal layer which is enclosed in said cell an
5020883 Ferroelectric liquid crystal device June 4, 1991
A ferroelectric liquid crystal device which comprises at least one pair of counterposed substrates, a ferroelectric liquid crystal material provided between the substrates, means for applying an electric field to the liquid crystal material and provided at the substrates, an alignment-co
4781439 Liquid crystal polyimide alignment free of scattering domains November 1, 1988
A liquid crystal display element comprising a pair of substrates, a pair of electrodes provided on the respective substrates, at least one of which is transparent and a liquid crystal layer disposed between said substrates, the liquid crystal layer comprising a nematic liquid crystal, wh
4759614 Ferroelectric liquid crystal element with particular alignment film and a method for manufacturi July 26, 1988
The element comprises a pair of transparent substrates, a pair of light-transmitting electrodes each provided on the respective substrates, a ferroelectric liquid crystal layer disposed between the pair of substrates and orientation control films for the molecules of the ferroelectri
4733949 Liquid crystal display device March 29, 1988
In a liquid crystal display device produced by forming an orientation controlling film on each surface of upper and lower substrates having an electrode, placing a liquid crystal composition between said substrates, and then sealing the periphery of the substrate, the response times,
4694098 Colorless liquid crystalline compounds September 15, 1987
A colorless liquid crystalline compound having at least one 6-membered ring and non-cyclic end groups in the molecular skeleton, said 6-membered ring containing two or more carbon atoms, at least one of which is directly bonded to a methylene group of a non-cyclic group having an alkoxy
4653866 Liquid crystal compound and liquid crystal composition including the same March 31, 1987
A liquid crystal compound of the formula: R.sub.2 --X.sub.1 --Y.sub.1 --C(O)S--Y.sub.2 --Z, wherein R.sub.2 is preferably C.sub.7-14 alkyl; X.sub.1 is --COO-- or --OCO; ##STR1## and Z is --NO.sub.2 or --CN, shows a smectic phase, is large in positive delectric anisotropy and can
4645305 Liquid-crystal compound, liquid crystal composition and liquid crystal display device February 24, 1987
The present liquid crystal compounds are novel ester-type compounds showing a smectic liquid crystal phase and being capable of increasing a dielectric constant anisotropy, represented by the following general formula: R--X.sub.1 --Y.sub.1 --X.sub.2 --Y.sub.2 --NO.sub.2, wherein R is
4584120 Liquid crystal compound and liquid crystal composition April 22, 1986
The liquid crystal compound of this invention is characterized by having the general formula.wherein R and R' each represent an alkyl group, and X, X', Y and Y' each represent ##STR1##
4576732 Ferroelectric liquid crystal compounds and liquid crystal compositions March 18, 1986
The present invention is characterized by a smectic liquid crystal compound represented by the following formula: ##STR1## wherein R is selected from alkyl and alkoxy groups; X from ##STR2## m and n are natural numbers; and R* is an optically active group containing an asymme
4564694 Colorless liquid crystalline compounds January 14, 1986
A colorless liquid crystalline compound having at least one 6-membered ring and non-cyclic end groups in the molecular skelton, said 6-membered containing two or more carbon atoms, at least one of which is directly bonded to a methylene group of a non-cyclic group having an alkoxy group
4381886 Liquid crystal display element May 3, 1983
A liquid crystal display element which may have a multi-layer structure comprising substrates having electrodes and liquid crystal orientation controlling films on the sides thereof facing a liquid crystal layer and one or more liquid crystal layers interposed between said substrates,










 
 
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