Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Takeshita; Fusayuki
Address:
Chiba, JP
No. of patents:
34
Patents:












Patent Number Title Of Patent Date Issued
7081279 Alkenyl compound having a negative .DELTA..epsilon. value, liquid crystal composition, and liqui July 25, 2006
Liquid crystalline compounds having a large negative .DELTA..epsilon. low viscosity, a large K.sub.33/K.sub.11 value, a small .DELTA..epsilon./.DELTA..perp. and mutually excellent solubility even at low temperature, compositions containing at least one of the compounds and liquid cry
6692657 Alkenyl compound having a negative .DELTA..epsilon. value, liquid crystal composition, and liqui February 17, 2004
Liquid crystalline compounds having a large negative .DELTA..di-elect cons. low viscosity, a large K.sub.33 /K.sub.11 value, a small .DELTA..di-elect cons./.DELTA..perp. and mutually excellent solubility even at low temperature, compositions containing at least one of the compounds and
6685995 Ester compounds, liquid crystal compositions and liquid crystal display devices February 3, 2004
Liquid crystalline compounds suitable for driving at a low voltage and at a wide temperature range, and suitable for high speed response, liquid crystal compositions comprising the compound, and liquid crystal display devices comprising the liquid crystal composition. The crystalline
6576303 Liquid crystal compounds exhibiting negative anisotropy of permittivity June 10, 2003
Novel liquid crystal compound having a negative and absolutely large value of dielectric anisotropy, being excellent in compatibility with other liquid crystalline compounds at a low temperature and being stable chemically and physically, as well as a liquid crystal composition compr
6485799 Aniline derivatives, liquid-crystal composition containing the same, and liquid-crystal display November 26, 2002
A aniline derivative represented by general formula (1) ##STR1##wherein R and R' represent independently each other alkyl with 1 to 10 carbon, alkoxyalkyl with 1 to 10 carbon, or hydrogen; x represents cyano, halogen, haloalkyl, haloalkyloxy, or 2-cyanoethynyl; Y represents fluorine
6458433 Difluorophenyl derivatives, liquid-crystal compounds, and liquid-crystal composition October 1, 2002
Disclosed are liquid crystalline compounds which (i) are characterized in that the compounds have a wide temperature range in which the compounds exhibit a liquid crystal phase, are low in viscosity, and have a negative and large .DELTA..epsilon., (ii) are readily mixed with other variou
6372153 Fluoroalkoxybenzene derivatives having ether bond, liquid-crystal composition, and liquid-crysta April 16, 2002
Liquid crystalline compounds superior in having an eminent dielectric anisotropy, being stable against environment and having improved miscibility with other liquid crystalline compounds, as well as a liquid crystal composition with driving-ability at a low voltage and responsibility
6348244 Liquid-crystal compounds having large negative value of permittivity anisotropy, liquid-crystal February 19, 2002
An object of the present invention is to provide novel liquid crystalline compounds having a negative and extremely large dielectric anisotropy value and a small optical anisotropy value together, to provide liquid crystal compositions comprising the liquid crystalline compound, and to
6329027 Chlorobenzene derivatives, liquid-crystal composition, and liquid-crystal display elements December 11, 2001
Provided are liquid crystalline compounds having excellent physical properties and being excellent in miscibility with other liquid crystal materials; liquid crystal compositions comprising the crystalline compound; and liquid crystal display device fabricated by using the liquid cry
6326065 Pyrimidine derivative, liquid crystal composition comprising the derivative, and liquid crystal December 4, 2001
Liquid crystalline compounds having a comparatively high voltage holding ratio, high .DELTA.n and high .DELTA..epsilon., and excellent miscibility with known liquid crystalline compounds at low temperatures. The novel compounds have the formula (1) ##STR1##wherein R represents hydrog
6325949 Liquid crystal composition and liquid crystal display element December 4, 2001
The present invention provides a liquid crystal composition comprising a component A being at least one compound selected from the group of compounds represented by Formulas (1-1) and (1-2) described in the specification and a component B being at least one compound selected from the
6319570 Liquid crystalline compound, liquid crystal composition comprising the liquid crystal-line compo November 20, 2001
The invention is to provide liquid crystalline compounds which have a low viscosity, high negative dielectric anisotropy, high resistivity, and high voltage holding ratio, and are stable against heat and ultraviolet light; to provide liquid crystal compositions comprising the liquid crys
6315922 Liquid crystal composition and liquid crystal display element November 13, 2001
The present invention provides a liquid crystal composition comprising a component A being at least one compound selected from the group of compounds represented by Formulas (1-1) and (1-2) in the specification and a component B being at least one compound selected from the group of
6248260 Liquid-crystal compounds having fluorinated alkyl groups, liquid-crystal composition, and liquid June 19, 2001
Provided are liquid crystalline compounds which are excellent in the miscibility with existing liquid crystalline compounds even at low temperatures and are electrically and chemically stable while having a high voltage holding ratio and a high .DELTA..di-elect cons.; liquid crystal
6210761 Liquid crystal compounds exhibiting negative anisotropy of permittivity, liquid crystal composit April 3, 2001
The present invention is to provide liquid crystalline compounds which exhibit a negative dielectric anisotropy value, have an extremely high voltage holding ratio and a low threshold voltage, are remarkably small in their dependency on temperature, hardly exhibit smectic phase, and are
6210603 Fluorine-substituted benzene derivative, liquid-crystal composition, and liquid-crystal display April 3, 2001
Liquid crystalline compounds are provided which have an extremely high voltage holding ratio, altered only slightly by change of temperature, and which have a low threshold voltage and a high .DELTA.n. Also provided are liquid crystal compositions containing the liquid crystalline compou
6207076 Fluorovinyl derivative compound, liquid crystal composition, and liquid crystal display device March 27, 2001
There are herein disclosed a fluorovinyl derivative compound represented by the general formula (1) and having characteristics of a liquid crystal, a liquid crystal composition, and a liquid crystal display device formed by using this composition: ##STR1##wherein R.sub.1 is an alkyl
6207075 Liquid crystal composition and liquid crystal display element March 27, 2001
A liquid crystal composition which has a superior voltage transmittance (sharpness) for good color and high-speed response characteristics. The composition contains at least one of the following first component (I-a, I-b), second component (II-a to II-d) and third component (III-a to III
6197217 3,3'-difluorobiphenyl derivatives, liquid crystal compositions, and liquid crystal display eleme March 6, 2001
Liquid crystalline compounds which exhibit a negative dielectric anisotropy value, have an extremely high voltage holding ratio and a low threshold voltage, are small in their dependency on temperature, hardly exhibit smectic phase, and are excellent in miscibility with other liquid crys
6190576 Liquid crystal compounds, liquid crystal compostions containing the compounds, and liquid crysta February 20, 2001
The invention is to provide liquid crystalline compounds which have a low viscosity, high negative dielectric anisotropy, high resistivity, and high voltage holding ratio, and are stable against heat and ultraviolet light; to provide liquid crystal compositions comprising the liquid crys
6177154 Alkoxybenzene derivative, liquid-crystal composition, and liquid-crystal display element January 23, 2001
Disclosed are(a) liquid crystalline compounds which are essential as component of the liquid crystal compositions, are excellent in miscibility with other liquid crystal compositions, particularly in the miscibility at low temperatures, and expressed by the general formula (1) ##STR1
6174457 Compound having alkadienyl group as side chain, and liquid crystal composition using same January 16, 2001
A compound represented by the general formula (1) ##STR1##wherein R.sub.1 is an alkadienyl group having 4 to 10 carbon atoms in which a hydrogen atom may be substituted by a fluorine atom or the like; R.sub.2 is an alkenyl group having 2 to 10 carbon atoms in which a hydrogen atom ma
6168839 Cyclohexane derivatives, liquid-crystal composition, and liquid-crystal display element January 2, 2001
Novel liquid crystalline compounds which have a wide temperature range of liquid crystal phase, are excellent in miscibility with other liquid crystalline compounds, have a low viscosity, are low in toxicity, and are safe; liquid crystal compositions comprising the liquid crystalline
6149838 Conjugated nitrile derivative, liquid crystal composition, and liquid crystal display elements November 21, 2000
Liquid crystalline compounds having a wide temperature range of liquid crystal phase, a high dielectric anisotropy, and a high optical anisotropy; and liquid crystal compositions and display devices containing the composition. The liquid crystalline compounds are conjugated nitrile d
5879585 Liquid crystalline compound having alkynyl group, and liquid crystal compositions and liquid cry March 9, 1999
A liquid crystalline compound having a remarkably high .DELTA.n and good miscibility with other liquid crystalline compounds, and expressed by the general formula (1) ##STR1## wherein R.sub.1 represents, for example, a halogen atom, cyano group, or an alkyl or alkenyl group of 1
5858272 Phenyldioxane derivatives, liquid crystal compositions, and liquid crystal display elements January 12, 1999
There is provided an electrically and chemically stable liquid crystalline compound which exhibits a significantly large value of De and a high voltage holding ratio. The compound is a phenyldioxane derivative represented by formula (1): ##STR1## wherein R represents a C1-C20 alk
5840208 Liquid crystal composition and liquid crystal display element November 24, 1998
A chiral nematic liquid crystal composition which has a broad d/P margin, particularly for corresponding to a large size of LCD panel, while satisfying various characteristics sought for STN display mode, and which contains as a first component, at least one member of compounds expressed
5837161 Liquid crystal composition and liquid crystal display device November 17, 1998
Liquid crystal compositions having a small value of .gamma. (V.sub.10 /V.sub.90) and a small .tau. (fast response speed) in order to cope especially with high speed response, while satisfying various characteristics required of STN display mode. These compositions comprise at least o
5776366 Liquid crystal composition and electro-optic display device July 7, 1998
A chiral, nematic liquid crystal composition suitable to STN-LCD, having superior steepness, rapid response and being able to prevent occurrence of high order and low order domain of LCD, which composition contains as a first component, at least one compound expressed by the formula (1)
5198150 Ferroelectric liquid crystal composition March 30, 1993
A ferroelectric liquid crystal composition is provided which includes at least one achiral compound represented by formula (I) ##STR1## wherein each of R.sup.1 and R.sup.2 is an alkyl group having 1 to 18 carbon atoms, at least one optically active compound represented by formula
5116529 Ferroelectric liquid crystal composition and liquid crystal display element May 26, 1992
The present invention is directed to a ferroelectric liquid crystal composition having quick response properties and assuming a smectic C* phase in an extensive temperature range inclusive of room temperature, and an optical switching element having a quick response property containing
5053163 Ferroelectric liquid crystal composition October 1, 1991
A ferroelectric liquid crystal composition having a negative dielectric anisotropy, a good AC-stabilizing effect and still high-speed response properties, and a light switching element, are provided, which composition comprises a compound expressed by the formula ##STR1## wherein
5035928 Liquid crystal display device July 30, 1991
Disclosed is an improvement of an active matrix type liquid crystal display device using a combination of a specific mixed liquid crystal and a specific polyimide orientation film.
5021190 Ferroelectric liquid crystal composition June 4, 1991
The present invention relates to a ferroelectric liquid crystal composition having quick response and comprising a smectic liquid crystal compound and an optically active compound.The ferroelectric liquid crystal composition comprises components A and B, said component A comprising a com










 
 
  Recently Added Patents
Systems and methods for arranging and labeling cardiac episodes
Image forming apparatus, information processing method, and storage medium for generating screen information
Sharing networks determined by sharing of items between individuals
Partial response decision feedback equalizer with distributed control
Method and apparatus for supporting management actions for very high throughput in wireless communications
Spark plug
Telecommunications system and method
  Randomly Featured Patents
Process for reacting acid and base
Financial transaction approval system and method
Internal combustion engine and supercharger
Antenna device
Production of acetyl compound
Cold-walled vessel process for compounding, homogenizing and consolidating semiconductor compounds
Toddler's potty
Server apparatus for providing a realtime visualization of at least one image
Copper phthalocyanine photosensitive material for electrophotography with binder and an oxadiazole
Segmenting access to electronic message boards