Patents by Inventor Norbert Rosch
Norbert Rosch has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8197415Abstract: The present invention discloses an apparatus for non-invasive heart monitoring comprising a pulse wave transit time (PWTT) determining device for determining a PWTT at predefined intervals, a first storing means for storing PWTT values resulting of the determining, a blood pressure measuring device for measuring a blood pressure close in time with the determining and a second storing means for storing blood pressure values resulting of the measuring. Furthermore, the apparatus comprises a cardiovascular dynamic change calculating device for calculating a relative change of the PWTT values and the blood pressure values as a function of time. The apparatus further comprises an alarm emitting device for emitting an alarm if the blood pressure values are substantially constant as a function of time and the PWTT values decrease as a function of time. A method for non-invasive heart monitoring is also disclosed.Type: GrantFiled: July 19, 2005Date of Patent: June 12, 2012Assignee: Centre de Recherche Public Henri TudorInventors: Norbert Rösch, Patrick Harpes, Daniel Wagner, Pierre Plumer
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Publication number: 20070225609Abstract: The present invention discloses an apparatus for non-invasive heart monitoring comprising a pulse wave transit time (PWTT) determining device for determining a PWTT at predefined intervals, a first storing means for storing PWTT values resulting of the determining, a blood pressure measuring device for measuring a blood pressure close in time with the determining and a second storing means for storing blood pressure values resulting of the measuring. Furthermore, the apparatus comprises a cardiovascular dynamic change calculating device for calculating a relative change of the PWTT values and the blood pressure values as a function of time. The apparatus further comprises an alarm emitting device for emitting an alarm if the blood pressure values are substantially constant as a function of time and the PWTT values decrease as a function of time. A method for non-invasive heart monitoring is also disclosed.Type: ApplicationFiled: July 19, 2005Publication date: September 27, 2007Inventors: Norbert Rosch, Patrick Harpes, Daniel Wagner, Pierre Plumer
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Patent number: 6884409Abstract: Deodorants and antiperspirants comprising aluminum chlorohydrates according to the formula I Al2(OH)nClz??(I) where n is a number between 4.5 and 5.1 and z is a number between 1.5 and 0.9 and n+z is always 6, with an iron content of less than 20 ppm, preferably less than 10 ppm, based on the dry substance.Type: GrantFiled: December 18, 2002Date of Patent: April 26, 2005Assignee: Clariant GmbHInventors: Peter Klug, Norbert Rösch, Karl Werner Reiser
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Patent number: 5702639Abstract: A ferroelectric liquid crystal mixture containing two or more components, at least one of which is a complex ligand for ions, in particular for cations, is particularly suitable for use in ferroelectric liquid crystal displays.Type: GrantFiled: May 31, 1995Date of Patent: December 30, 1997Assignee: Hoechst AktiengesellschaftInventors: Claus Escher, Takamasa Harada, Gerhard Illian, Norbert Rosch, Rainer Wingen
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Patent number: 5702777Abstract: An alignment film for liquid crystals comprising a quasi-monomolecular layer of compounds of the formula IIC.sub.y --S.sub.p --A.sub.n (II)in whichC .sub.y is a mediocyclic or macrocyclic carbon ring having 8 or more ring members, it also being possible for this ring to contain fused benzene rings and --O--, --N--, --S--, --Si-- and --B-- as heteroatoms;S.sub.p is an alkyl group having from 1 to 20 carbon atoms, in which one or more non-adjacent --CH.sub.2 --groups may be replaced by --O--, --S--, --CO--, --O--CO--, --NH--CO--, --O--COO--, --NH--CO--NH--, --NH--CO--O--, --SO.sub.2 --, --Si(CH.sub.3).sub.2 --, --CH.dbd.CH-- or --C.tbd.C--;A.sub.n is SiX.sup.1 X.sup.2 X.sup.3, where X.sup.1 is a single bond, and X.sup.2 and X.sup.3, independently of one another, are a single bond or an alkyl or alkoxy group,where the compound of the formula (II) is bonded to an oxidic layer via the single bond(s) of the group A.sub.n.Type: GrantFiled: May 20, 1996Date of Patent: December 30, 1997Inventors: Norbert Rosch, Peter Wegener
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Patent number: 5644016Abstract: Use of a polymer containing maleimide units of the formula I ##STR1## in which R.sup.1 is hydrogen, an acyclic or cyclic, aliphatic, aromatic or araliphatic radical which is chiral or achiral, can be monosubstituted or polysubstituted by functional groups and in which one or more CH.sub.2 groups can be replaced by functional groups, as alignment layer in liquid-crystal displays.Alignment layers containing a polymer conforming to the formula I effect, in particular, a suppression of twist states and ghost images and thus an improvement in the optical contrast.Type: GrantFiled: November 17, 1994Date of Patent: July 1, 1997Inventors: Horst Roschert, Norbert Rosch, Peter Wegener
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Patent number: 5445762Abstract: Decomposition-sensitive complex ligands can be stabilized by derivatizing them with the aid of bulky secondary or tertiary carboxylic acids or sulfonic acids. These stabilized derivatives can be added to alignment layers and liquid-crystal mixtures and increase the contrast and brightness in the FLC display.Type: GrantFiled: January 18, 1994Date of Patent: August 29, 1995Assignee: Hoechst AktiengesellschaftInventors: Javier Manero, Norbert Rosch
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Patent number: 5430564Abstract: A process for producing a liquid-crystal cell by using a ferroelectric liquid crystal (FLC) composition containing at least one oleophilic substance that exhibits liquid crystallinity and at least one additive having lower boiling point than said substance, characterized in that said FLC composition is charged into the cell under high-temperature and high-vacuum conditions, provided that the two conditions will not overlap, or will overlap for a sufficiently short time to effectively prevent the evaporation of said additive.Type: GrantFiled: February 5, 1993Date of Patent: July 4, 1995Assignee: Hoechst AktiengesellschaftInventors: Takamasa Harada, Claus Escher, Gerhard Illian, Dieter Ohlendorf, Heinz Rieger, Norbert Rosch
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Patent number: 5409635Abstract: An alignment layer for liquid-crystal displays which contains at least one compound containing, as structural element, a mediocyclic or macrocyclic carbon ring, results, in displays, in significantly increased contrast, inter alia.The mediocyclic or macrocyclic structural elements may also contain heteroatoms, such as, for example, O, N and S atoms.Type: GrantFiled: September 11, 1992Date of Patent: April 25, 1995Assignee: Hoechst AktiengesellschaftInventors: Norbert Rosch, Peter Wegener, Rainer Wingen
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Patent number: 5405552Abstract: Modified polysugar as an alignment layer for liquid-crystal displaysAn alignment layer for liquid-crystal displays (LCDs) containsa) at least one oligomer/polymer of a 6-membered cyclic sugar unit all or some of whose free OH groups may be derivatized and which carries equatorial substituents in the 2-, 3- and 6-positions on the ring, andb) at least one compound from the group consisting of macrocyclic compounds, cryptands, coronands, podands, mercapto compounds and ionophores.LCDs which contain an alignment layer according to the invention are particularly distinguished by good contrast and bright-transmission values and by good alignment of the liquid crystal.Type: GrantFiled: August 9, 1993Date of Patent: April 11, 1995Assignee: Hoechst AktiengesellschaftInventors: Dietmar Jungbauer, Norbert Rosch, Javier Manero
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Patent number: 5384168Abstract: Ferroelectric liquid-crystal display of high contrast and brightness. The use of alignment layers containing compounds having an amphiphilicity-providing effect increases the contrast and brightness of the image in FLC displays.Type: GrantFiled: April 19, 1991Date of Patent: January 24, 1995Assignee: Hoechst AktiengesellschaftInventors: Hans-Rolf Dubal, Takamasa Harada, Heinz Rieger, Norbert Rosch, Peter Wegener
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Patent number: 5373380Abstract: Ferroelectric liquid crystal display comprising outer substrates, electrodes, polarizer(s), ferroelectric liquid crystalline material and alignment layer(s), in which the ferroelectric liquid crystalline material has a spontaneous polarization of Ps>20 nC.cm.sup.-2 and a natural helical pitch of less than half of the cell thickness, and the alignment layer comprises at least one lipophilizing, lipophilic and/or amphiphilic compound. The liquid crystal display according to the invention exhibits a short switching time and a significantly reduced surface memory effect, and thus achieves an improved display contrast.Type: GrantFiled: April 15, 1993Date of Patent: December 13, 1994Assignee: Hoechst AktiengesellschaftInventors: Takamasa Harada, Claus Escher, Gerd Illian, Anke Kaltbeitzel, Norbert Rosch
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Patent number: 5361152Abstract: A process for producing a liquid-crystal cell which comprises the steps of:(a) providing a curable sealant portion in the periphey of the side of an electrode plate that has an electrode or electrodes;(b) (i) coating a ferroelectric liquid-crystal composition on the portion surrounded by said sealant portion, with a spacer being preliminarily provided in said portion;(ii) coating spacer-containing ferroelectric liquid-crystal composition on the portion surrounded by said sealant portion; or(iii) coating a ferroelectric liquid-crystal composition on the portion surrounded by said sealant portion and thereafter providing a spacer over said composition;(c) defoaming the coated layer of the liquid-crystal composition by heating during or after evacuation;(d) placing the other electrode plate in such a way that the side of said other electrode plate which has an electrode or electrodes faces the side of said one electrode plate containing the thermally defoamed coated layer of the liquid-crystal composition and coType: GrantFiled: February 5, 1993Date of Patent: November 1, 1994Assignee: Hoechst AktiengesellschaftInventors: Takamasa Harada, Claus Escher, Gerhard Illian, Dieter Ohlendorf, Heinz Rieger, Norbert Rosch
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Patent number: 5333075Abstract: Electro-optical display devices having a cell thickness of 1 to 10 .mu.m, and containing ferroelectric liquid crystalline mixture, electrodes, alignment layer(s), in which the ferroelectric liquid crystalline mixture has a spontaneous polarization of Ps>20nC.cm.sup.-2 and a natural helical pitch of less than a half of the cell thickness, and contains lipophilizing, lipophilic or amphiphilic compounds for eliminating ionic impurities, Ferroelectric liquid crystal compositions according to the invention show a significantly reduced surface memory effect and an improved display contrast.Type: GrantFiled: April 15, 1993Date of Patent: July 26, 1994Assignee: Hoechst AktiengesellschaftInventors: Takamasa Harada, Claus Escher, Gerd Illian, Anke Kaltbeitzel, Norbert Rosch
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Patent number: 5250215Abstract: A liquid-crystalline mixture comprising at least two components, the first being an aromatic mercapto compound of the formula (I) ##STR1## R.sup.1, R.sup.2, R.sup.3 and R.sup.4, independently of one another, are hydrogen, alkyl having 1 to 8 carbon atoms or alkoxy having 1 to 8 carbon atoms,--X-- is --O--, --S-- or --NH--,k and m, independently of one another, are 1, 2, or 3, andl is zero or 1, results in high contrasts in electrooptical switching and display devices.Type: GrantFiled: August 7, 1991Date of Patent: October 5, 1993Assignee: Hoechst AktiengesellschaftInventors: Michael Magerstadt, Norbert Rosch, Rainer Wingen
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Patent number: 5206751Abstract: Addition of coronands and cryptands to FLC-mixtures makes it possible to bring the FLC material into a homogeneous "bookshelf" or "quasi-bookshelf" geometry. When such a FLC mixture is used, displays which have been shock-damaged can be regenerated by applying a suitable electric field for a short period of time.Type: GrantFiled: April 10, 1991Date of Patent: April 27, 1993Assignee: Hoechst AktiengesellschaftInventors: Claus Escher, Gerhard Illian, Norbert Rosch, Takamasa Harada
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Patent number: 5178792Abstract: A liquid crystal mixture composed of at least two components containing as one component a macrocyclic compound of the general formula (1) ##STR1## in which a, b, c, d, e, f, independently of one another, are an integer from zero to 4, a+b+c+d+e+f being greater than 7, and--A--, --B--, --C--, --D--, --E--, --F--, identical or different, are, for example, --CH.sub.2 --, --CH.dbd.CH--, --CO-- or --COO--, leads in FLC displays to the formation of a uniform alignment and avoids twist states, which is reflected in a significantly improved contrast.Type: GrantFiled: April 10, 1991Date of Patent: January 12, 1993Assignee: Hoechst AktiengesellschaftInventors: Takamasa Harada, Norbert Rosch, Peter Wegener
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Patent number: 5167856Abstract: The occurrence of twist states in FLC displays can be suppressed by adding ionophores to FLC mixtures. Applicable ionophores are amides of the general formula I ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 e.g. are alkyl, cyclohexyl, phenyl or benzyl and X is alkylene with --CH.sub.2 -groups being replaced by --O--, 1,2-phenylene or 1,2-cyclohexylene.Type: GrantFiled: April 10, 1991Date of Patent: December 1, 1992Assignee: Hoechst AktiengesellschaftInventors: Takamasa Harada, Norbert Rosch, Rainer Wingen