Patents by Inventor William Marritt
William Marritt 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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Publication number: 20080011193Abstract: [Object] To provide a water-based pigment dispersion having superior ejection stability, long-term storage stability and clogging resistance. [Solving Means] A water-based pigment dispersion comprising: a pigment dispersoid containing a pigment and a sulfonate-based polymerizable surfactant adsorbed to the pigment, wherein the water-based pigment dispersion is produced by a process including the steps of: pulverizing and mixing a mixture containing the pigment, the sulfonate-based polymerizable surfactant, and an aqueous medium to prepare a water-based dispersion; treating the water-based dispersion in the presence of a peroxodisulfate to prepare a modified water-based dispersion; and subjecting the modified water-based dispersion to ultrafiltration until the dissolved portion of the sulfonate-based polymerizable surfactant in the aqueous medium is reduced to less than 10 ppm.Type: ApplicationFiled: March 20, 2007Publication date: January 17, 2008Inventor: William Marritt
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Patent number: 7195666Abstract: A self-dispersed pigment ink composition is provided which gives reliable printing performance and yields printed images that have excellent print quality and a dispersant which can realize the ink composition. New polyuronic acid derivatives, as a dispersant, according to the present invention characterized in that polyuronic acids are attached by reductively amination, through reducing termini of the polyuronic acids, to glyceryl poly(oxypropylene) triamine.Type: GrantFiled: July 30, 2003Date of Patent: March 27, 2007Assignee: Seiko Epson CorporationInventor: William Marritt
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Publication number: 20060155060Abstract: A self-dispersed pigment ink composition is provided which gives reliable printing performance and yields printed images that have excellent print quality and a dispersant which can realize the ink composition. New polyuronic acid derivatives, as a dispersant, according to the present invention characterized in that polyuronic acids are attached by reductively amination, through reducing termini of the polyuronic acids, to glyceryl poly(oxypropylene) triamine.Type: ApplicationFiled: July 30, 2003Publication date: July 13, 2006Inventor: William Marritt
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Patent number: 6903209Abstract: Disclosed is a polyuronic acid having an average degree of polymerization less than 20. The method of the present invention comprises the steps: (a) providing a solution containing 5 wt. % or more of a high molecular weight polyuronic acid predominantly as its lithium salt; (b) adding hydrogen peroxide and a ferrous salt to the solution prepared in step (a) to oxidatively degrade the high molecular weight polyuronic acid; and (c) isolating a polyuronic acid having an average degree of polymerization less than 20 obtained in step (b).Type: GrantFiled: May 14, 2001Date of Patent: June 7, 2005Assignee: Seiko Epson CorporationInventor: William Marritt
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Patent number: 6776830Abstract: It is an object of the present invention to provide a pigment dispersed aqueous ink composition for use in ink jet printing which gives reliable printing performance and yields rapidly drying printed images with levels of color bleed, which are equal to or better than those obtained from comparable dye based inks. According to the present invention, there is provided a pigment dispersed aqueous ink jet ink composition comprising water as the principal solvent, a water-soluble organic solvent, and a polysaccharide compound represented by the formula: wherein A represents a polyamine.Type: GrantFiled: April 15, 2002Date of Patent: August 17, 2004Assignee: Seiko Epson CorporationInventor: William Marritt
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Publication number: 20020185038Abstract: It is an object of the present invention to provide a pigment dispersed aqueous ink composition for use in ink jet printing which gives reliable printing performance and yields rapidly drying printed images with levels of color bleed, which are equal to or better than those obtained from comparable dye based inks.Type: ApplicationFiled: April 15, 2002Publication date: December 12, 2002Applicant: SEIKO EPSON CORPORATIONInventor: William Marritt
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Publication number: 20020016453Abstract: Disclosed is a polyuronic acid having an average degree of polymerization less than 20. The method of the present invention comprises the steps: (a) providing a solution containing 5 wt. % or more of a high molecular weight polyuronic acid predominantly as its lithium salt; (b) adding hydrogen peroxide and a ferrous salt to the solution prepared in step (a) to oxidatively degrade the high molecular weight polyuronic acid; and (c) isolating a polyuronic acid having an average degree of polymerization less than 20 obtained in step (b).Type: ApplicationFiled: May 14, 2001Publication date: February 7, 2002Applicant: SEIKO EPSON CORPORATIONInventor: William Marritt
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Patent number: 6051057Abstract: An ink for ink jet recording and an ink jet recording method are provided which can realize a print having high color density and, even on recycled paper, a print having no significant feathering.Type: GrantFiled: May 18, 1998Date of Patent: April 18, 2000Assignee: Seiko Epson CorporationInventors: Masahiro Yatake, William Marritt
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Patent number: 5847566Abstract: A battery capacity meter and a method for precisely calculating a battery capacity are obtained by measuring a terminal voltage of the battery and sequentially calculating the measured terminal voltages. In a battery capacity meter of the present invention, a calculation process is carried out. After a power source is connected to the battery capacity meter, an initial value S.sub.0 under non-consistent charge state S.sub.i is calculated from an initial value V.sub.0 of a terminal voltage V.sub.i. Next, V.sub.i and S.sub.i are related to a current I.sub.i, and an equation for relating a variation amount .DELTA.S.sub.i of S.sub.i to S.sub.i is formed. Under this relationship, .DELTA.S.sub.i is obtained from V.sub.i and S.sub.i in a time interval .DELTA.t. A value of S.sub.i is updated. Either a remaining capacity or a fuel-gauge normalized remaining capacity are obtained from the updated value of S.sub.i. A process operation is returned to a step where .DELTA.S.sub.Type: GrantFiled: June 7, 1995Date of Patent: December 8, 1998Assignee: Seiko Epson CorporationInventors: William A. Marritt, Toshihiko Yamazaki
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Patent number: 4990638Abstract: Disclosed is a method of making a tri- or tetrahydrocarbylammonium hexahydroxyantimonate,[R.sub.3 R'N]Sb(OH).sub.6 .multidot.xH.sub.2 O (1)containing 3 to 30 C atoms, which process comprises the steps of (1) contacting a compound selected fromR.sub.3 N and R.sub.4 NOHwith the H.sup.+ form of a solid cation exchange resin, and allowing the amine or the tetrahydrocarbylammonium hydroxide to react with the cation exchange resin, and thereafter (2) contacting the reacted resin with an aqueous solution of KSb(OH).sub.6,wherein each R contains 1-10 C atoms and is independently selected from alkyl, aralkyl and alkylaralkyl, R' is H or H, and wherein x is an indeterminate number of moles of H.sub.2 O.Type: GrantFiled: December 21, 1987Date of Patent: February 5, 1991Assignee: The Standard Oil CompanyInventors: Charles J. Besecker, William A. Marritt
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Patent number: 4921985Abstract: Disclosed is a method of making a tri- or tetrahydrocarbylammonium hexahydroxyantimonate,[R.sub.3 R'N]Sb(OH).sub.6.xH.sub.2 O formula (1)containing 3 to 30 C atoms, which process comprises the steps of (1) contacting a compound selected fromR.sub.3 N and R.sub.4 NOHwith the H.sup.+ form of a solid cation exchange resin, and allowing the amine or the tetrahydrocarbylammonium hydroxide to react with the cation exchange resin, and thereafter (2) contacting the reacted resin with an aqueous solution of KSb(OH).sub.6,wherein each R contains 1-10 C atoms and is independently selected from alkyl, aralkyl and alkylaralkyl, R' is H or R, and wherein x is an indeterminate number of moles of H.sub.2 O.Type: GrantFiled: October 21, 1988Date of Patent: May 1, 1990Assignee: The Standard Oil CompanyInventors: Charles J. Besecker, William A. Marritt
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Patent number: 4900853Abstract: Tetraalkylammonium salts of 1:4 organoarsonate molybdenum polyoxoanions and resinoid products thereof. The salts have the formula[R.sub.4 N].sub.2 {[R.sup.1 As(OH)O.sub.2 ]Mo.sub.4 O.sub.13 H}where R is an alkyl group having from one to about 18 carbon atoms and R.sup.1 is an aryl group having the formula ##STR1## where G is selected from the group consisting of --NH.sub.2, --NH(CH.sub.3), --N(CH.sub.3).sub.2, --OH, --OCH.sub.3 and --H and at least one G is --NH.sub.2 to form 3-, 4-, 3,4-, 3,5- or 3,4,5-substituted aryl-arsonic acids. The resinoids comprise from about 7 to 17 parts by weight of the salt and from about 1 to 3 parts by weight of a dicarboxylic acid halide having the formula ##STR2## where R.sup.2 is selected from the group consisting of all organic radicals and X is Cl or Br. Processes for the preparation of the salts and resinoids are provided as is a method for the treatment of steel surfaces with the resinoids.Type: GrantFiled: August 5, 1987Date of Patent: February 13, 1990Assignee: The Standard Oil CompanyInventors: Charles J. Besecker, William A. Marritt
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Patent number: 4515732Abstract: The vapor phase oxidation of acetonitrile with molecular oxygen in the presence or absence of water vapor to produce glycolonitrile or glycolamide.Type: GrantFiled: May 29, 1984Date of Patent: May 7, 1985Assignee: The Standard Oil CompanyInventors: James F. Brazdil, Jr., William A. Marritt, Michael D. Ward