Patents by Inventor Andrea Walter

Andrea Walter 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).

  • Publication number: 20080191197
    Abstract: A memory cell reversibly switchable between different stable electrical resistance states, the memory cell having a first electrode and a second electrode and an active layer arranged between the first and the second electrode, the active layer including a compound represented by general formula , wherein R1 and R2 are independently selected from —H, —(CH2)mCH3, -phenyl, —O—(CH2)mCH3, —O-phenyl, —S(CH2)mCH3, —S-aryl, —NR3R4, —SR3 and -halogen; R1 and R2 may together form a ring; R5 and R6 are independently selected from —H, -alkyl, -aryl and -heteroaryl; m is either 0 or an integer ranging from 1 to 10; n is an integer ranging from 2 to 1000; and a compound represented by general formula wherein R7, R8, R9, R10, R11, R12, R13, and R14 are independently selected from the group consisting of —H, —(CH2)mCH3, -phenyl, —O—(CH2)mCH3, —O-phenyl, —CO(CH2)mCH3, -halogen, —CN and —NO2; R7 and R8 may together form a ring; R8 and R9 may together form a ring; R9 and R10 may together form a ring; R11 and R12 may to
    Type: Application
    Filed: July 21, 2005
    Publication date: August 14, 2008
    Applicant: QIMONDA AG
    Inventors: Andreas Walter, Recai Sezi, Reimund Engl, Anna Maltenberger, Joerg Schumann, Thomas Weitz
  • Publication number: 20080142774
    Abstract: An integrated circuit having resistive memory is disclosed. In one embodiment, the memory includes novel memory cells which have two electrodes and a layer arranged in between and including an active material which contains [1,2]dithiolo[4,3-[c]-1,2-dithiol-3,6-dithione, (2,4,7-trinitro-9-fluorenylidene)malonodinitrile and a polymer are disclosed. In one embodiment, a process for the production of the cells according to the invention is provided, as well as the novel use of a composition which can be used as active material for the memory cells.
    Type: Application
    Filed: July 20, 2005
    Publication date: June 19, 2008
    Applicant: QIMONDA AG
    Inventors: Andreas Walter, Thomas Weitz, Reimund Engl, Recai Sezi, Anna Maltenberger, Joerg Schumann
  • Publication number: 20080089855
    Abstract: The present invention relates to non-fluid hair treatment products comprising a fluid composition which is absorbed on a waxy carrier, wherein the fluid composition contains at least one hair fixing agent, e.g. a hair fixing polymer. The products can be made by pulverizing a fluid hair styling composition on a non-fluid, waxy carrier, especially by first dissolving a gas in a fluid hair styling composition at high pressure, then expanding the liquid/gas solution, wherein a solid, waxy carrier is added in solid form before, during or shortly after the expansion. The product can be in the form of snow-like flakes which are easily melting in the hand and can be easily distributed on human hair.
    Type: Application
    Filed: October 3, 2007
    Publication date: April 17, 2008
    Inventors: Andrea Walter, Susanne Birkel, Monika Moenks
  • Publication number: 20070242496
    Abstract: A memory arrangement includes: a first line for applying a reference voltage, a second line for applying an operating voltage, and a plurality of resistive memory elements, each element includes a resistive memory cell and a MOS memory cell selection transistor. A NOR memory arrangement is configured with each memory element including the resistive memory cell and selection transistor connected in series with the transistor connected to the first line, and the memory cell connected to the second line. A NAND memory arrangement is configured with a series of resistive memory elements forming a chain with each memory element including the resistive memory cell and selection transistor connected in parallel. The chain is connected to the first line disposed on a side of the memory cells facing the selection transistors and the second line disposed on a side of the memory cells which is remote from the selection transistors.
    Type: Application
    Filed: April 19, 2007
    Publication date: October 18, 2007
    Applicant: QIMONDA AG
    Inventors: Kurt Hoffmann, Christine Dehm, Recai Sezi, Andreas Walter
  • Publication number: 20070224145
    Abstract: Described is a hair-treatment agent in the form of a thickened preparation on an aqueous basis and containing at least one polymeric gel former bearing acid groups, water glass in an amount sufficient for partly or completely neutralizing the acid groups of the polymeric gel former and at least one hair-fixing polymer.
    Type: Application
    Filed: October 23, 2004
    Publication date: September 27, 2007
    Inventors: Andrea Walter, Manuela Hannich, Susanne Birkel, Axel Kalbfleisch
  • Publication number: 20070202068
    Abstract: The present invention relates to hair styling creams comprising a crosslinked silicone polymer; an alkoxylated compound selected from polyethylenoxides and polyalkoxylated silicone compounds; emulsifier; a fatty phase; and an aqueous phase. The cream can be transferred into rope-, thread-, or fiber-like structures when distributed in the hands. It gives a powdery feel after drying and improves stability and gloss of hair.
    Type: Application
    Filed: December 1, 2006
    Publication date: August 30, 2007
    Inventors: Andrea Walter, Manuela Hannich, Bianka Schmich, Marina Loifenfeld
  • Publication number: 20070197704
    Abstract: The compositions of the present invention relate to improved aqueous or aqueous-alcoholic hair styling compositions comprising a combination of two copolymers. The first copolymer is a copolymer of (a1) acidic vinyl monomers, e.g., acrylic or methacrylic acid, with (a2) hydrophobic nonionic vinyl monomers, e.g., acrylic or methacrylic acid esters, with (a3) a first associative monomer and (a4) at least one other monomer which can be a second associative monomer different from the first associative monomer or a semihydrophobic monomer. The associative monomers having (i) an ethylenically unsaturated end group, (ii) a hydrophilic midsection and (iii) a hydrophobic or semi-hydrophobic end group. The second copolymer is a copolymer of (b1) C3 to C8 monoethylenically unsaturated monocarboxylic acid monomers, (b2) acrylic or methacrylic acid alkyl esters, and (b3) acrylic or methacrylic acid hydroxyalkyl esters. Preferred product forms are gels, additionally containing a gel forming agent.
    Type: Application
    Filed: April 17, 2007
    Publication date: August 23, 2007
    Applicant: The Procter & Gamble Company
    Inventors: Andrea Walter, Susanne Birkel, Michael Franzke, Katja Schmitt
  • Publication number: 20070194301
    Abstract: One aspect of the invention relates to a semiconductor arrangement having at least one nonvolatile memory cell which has a first electrode comprising at least two layers; and having an organic material, the organic material forming a compound with that layer of the first electrode which is in direct contact. One aspect of the invention furthermore relates to a method for producing the nonvolatile memory cell, a semiconductor arrangement having a plurality of memory cells according to the invention, and a method for producing the same.
    Type: Application
    Filed: November 24, 2004
    Publication date: August 23, 2007
    Inventors: Recai Sezi, Andreas Walter, Reimund Engl, Anna Maltenberger, Christine Dehm, Sitaram Arkalgud, Igor Kasko, Joachim Nuetzel, Jakob Kriz, Thomas Mikolajick, Cay-Uwe Pinnow
  • Publication number: 20070184007
    Abstract: The present invention relates to the use of fully esterified di- or oligosaccharide polyesters in hair styling products selected from hair styling waxes, hair styling creams, hair styling foam wax products, and hair styling spray wax products. Preferred saccharide polyesters are octaesters of sucrose and C8 to C30 fatty acids such as behenic acid and fatty acids derived from cotton seed oil.
    Type: Application
    Filed: December 1, 2006
    Publication date: August 9, 2007
    Inventors: Andrea Walter, Susanne Birkel
  • Publication number: 20070164276
    Abstract: Layers are produced, where the layers include a first layer formed of a metal and a second layer formed of an organic compound, the metal and the organic compound entering into an interaction, so that the layer serves as an electroactive layer for nonvolatile memories, the metal layer being deposited onto a substrate and, if appropriate, patterned, then being coated with an organic compound and being treated with a second organic compound.
    Type: Application
    Filed: January 10, 2007
    Publication date: July 19, 2007
    Applicant: Qimonda AG
    Inventors: Reimund Engl, Jorg Schumann, Andreas Walter, Recai Sezi, Anna Maltenberger
  • Patent number: 7244803
    Abstract: A dielectric for aluminum and copper metalizations is stable at high temperatures. Surprisingly, in spite of the elimination of water during the cyclization, the polymeric dielectrics are very suitable for filling narrow trenches. The filled trenches exhibit no defects and bubbles or cracks. The polybenzoxazoles have dielectric constants of k?2.7 and are suitable as an electrical insulator. Furthermore, these materials adhere very well on all surfaces relevant for micro-electronics.
    Type: Grant
    Filed: June 27, 2003
    Date of Patent: July 17, 2007
    Assignee: Infineon Technologies AG
    Inventors: Recai Sezi, Andreas Walter, Anna Maltenberger, Klaus Lowack, Marcus Halik
  • Patent number: 7238964
    Abstract: A memory cell is provided which comprises two electrodes and a layer arranged in between and comprising an active material comprising (a) a compound selected from the group consisting of in which R1 and R4, independently of one another, may have the following meaning: —H, -alkyl, -aryl, -heteroaryl, —O-alkyl, —O-aryl, —O-heteroaryl, —SH, —S-alkyl, —S-aryl, —S-heteroaryl, —CO-alkyl, —CO-aryl, —CO-heteroaryl, —CS-alkyl, —CS-aryl, —CS-heteroaryl, -halogen, —CN and/or —NO2, in which R1 and R2, R2 and R3, R3 and R4 together may form a ring, (b) a compound of the general formula II: in which R5 to R7, independently of one another, may have the following meaning: —H, -alkyl, -aryl, -heteroaryl, —O-alkyl, —O-aryl, —O-heteroaryl, —NH2, —N(alkyl)2, —N(aryl)2, —N(heteroaryl)2, —SH, —S-alkyl, —S-aryl, —S-heteroaryl, —CO-alkyl, —CO-aryl, —CO-heteroaryl, —CS-alkyl, —CS-aryl, —CS-heteroaryl, -halogen, —CN and/or —NO2, in which R5 and R6 or R7 and R8 together may form a ring, and optionally (c) a polymer.
    Type: Grant
    Filed: January 27, 2005
    Date of Patent: July 3, 2007
    Assignee: Infineon Technologies AG
    Inventors: Andreas Walter, Recai Sezi, Reimund Engl, Anna Maltenberger, Joerg Schumann, Thomas Weitz
  • Publication number: 20070140500
    Abstract: For synthesizing at least three output channels using two stereo input channels, the stereo input channels are analyzed to detect signal components occurring in both input channels. A signal generator is operative to introduce at least a part of the detected signal components into the second channel associated with a second speaker in an intended speaker scheme, which is positioned between a first and a third speaker in the speaker scheme. When, however, feeding of the complete detected signal components would result in a clipping situation, then only a part of the detected signal components is fed into the second channel as a real center channel and the remainder is located in the first and third channels as a phantom center channel.
    Type: Application
    Filed: December 20, 2005
    Publication date: June 21, 2007
    Inventors: Oliver Hellmuth, Jurgen Herre, Harald Popp, Andreas Walter
  • Patent number: 7211856
    Abstract: Memory cells having two electrodes and a layer arranged in between and including an active material which contains hexakisbenzylthiobenzene, dichlorodicyano-p-benzoquinone and optionally a polymer are provided. Furthermore, a process for the production of the cells according to the invention is provided, as well as the novel use of a composition which can be used as active material for the memory cells.
    Type: Grant
    Filed: January 24, 2005
    Date of Patent: May 1, 2007
    Assignee: Infineon Technologies AG
    Inventors: Recai Sezi, Andreas Walter, Reimund Engl, Anna Maltenberger, Joerg Schumann, Thomas Weitz
  • Publication number: 20070009465
    Abstract: A cosmetic composition is described, said composition having a content of a block polymer having at least a first block, which block is a polyol selected from polyethers, dimerdiol, derivatives derived from dimerdiol and polyesters of dicarboxylic acids with diols and at least two additional blocks, which blocks are polyesters of hydroxycarboxylic acids or lactones thereof.
    Type: Application
    Filed: July 14, 2004
    Publication date: January 11, 2007
    Applicant: MNEMOSCIENCE GMBH
    Inventors: Andreas Lendlein, Tareq Ali Abdulla Hasson, Karl Kratz, Simone Moersheim, Yasmin Ghazlan, Susanne Birkel, Thomas Krause, Axel Kalbfleisch, Andrea Walter, Susanne Granner
  • Publication number: 20070006127
    Abstract: The invention relates to a flat dual security feature which comprises two different security components, one of which can be verified in the visible spectral region and one of which can be verified in the ultraviolet spectral region of light, and which comprises flake-form effect pigments and luminescent pigments in such a low concentration that the latter are evident to the naked eye as individual particles under the action of UV light; to a process for the production thereof, and to the use thereof.
    Type: Application
    Filed: April 30, 2004
    Publication date: January 4, 2007
    Inventors: Matthias Kuntz, Burkhard Krietsch, Andreas Walter
  • Publication number: 20060237716
    Abstract: The present invention relates to compositions for storage applications, relates to a memory cell which comprises the abovementioned composition and two electrodes and furthermore relates to a process for the production of microelectronic components and the use of the composition according to the invention in the production of these microelectronic components.
    Type: Application
    Filed: March 29, 2006
    Publication date: October 26, 2006
    Inventors: Recai Sezi, Andreas Walter, Reimund Engl, Anna Maltenberger, Joerg Schumann
  • Publication number: 20060214139
    Abstract: Poly-o-hydroxyamides include binaphthyl substituents as repeating units. The poly-o-hydroxyamides can be cyclized to give the polybenzoxazole by heating. Pore formation occurs, so that a dielectric having a very low dielectric constant k of less than 2.5 is obtained.
    Type: Application
    Filed: May 23, 2006
    Publication date: September 28, 2006
    Inventors: Recai Sezi, Andreas Walter, Klaus Lowack, Anna Maltenberger, Robert Banfic
  • Patent number: 7108807
    Abstract: Poly-o-hydroxyamides include binaphthyl substituents as repeating units. The poly-o-hydroxyamides can be cyclized to give the polybenzoxazole by heating. Pore formation occurs, so that a dielectric having a very low dielectric constant k of less than 2.5 is obtained.
    Type: Grant
    Filed: April 28, 2003
    Date of Patent: September 19, 2006
    Assignee: Infineon Technologies AG
    Inventors: Recai Sezi, Andreas Walter, Klaus Lowack, Anna Maltenberger, Robert Banfic
  • Publication number: 20060202198
    Abstract: Embodiments of the invention relate to an integrated circuit comprising an organic semiconductor, particularly an organic field effect transistor (OFET) that is provided with a dielectric layer. The integrated circuit is produced by means of a polymer formulation consisting of a) 100 parts of at least one crosslinkable basic polymer, b) 10 to 20 parts of at least one electrophilic crosslinking component, c) 1 to 10 parts of at least one thermal acid catalyst that generates an activating proton at temperatures ranging from 100 to 150° C., dissolved in d) at least one solvent. Other embodiments of the invention further relate to a method for producing an integrated circuit, which makes it possible to produce integrated circuits comprising dielectric layers, especially for OFET's at low temperatures.
    Type: Application
    Filed: February 28, 2006
    Publication date: September 14, 2006
    Inventors: Marcus Halik, Hagen Klauk, Guenter Schmid, Andreas Walter, Ute Zschieschang