Patents by Inventor Prakash Patel

Prakash Patel 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: 20100167025
    Abstract: A mixture of phthalocyanine dyes of Formula (1) and salts thereof: wherein M is Cu or Ni; Pc represents a phthalocyanine nucleus; L is, for example, C1-20 alkylene; R1, R2, R3 and R4 independently are H or optionally substituted C1-4alkyl; R5 is H or an optionally substituted hydrocarbyl; or R4 and R5 together with the nitrogen atom to which they are attached represent an optionally substituted aliphatic or aromatic ring system; x, y and z are each 0.1 to 3.8 where the sum of (x+y+z) is 4; and the substituents, represented by x, y and z, are attached only to a ?-position on the phthalocyanine ring. This mixture can be used to make inks suitable for use in an ink jet printer.
    Type: Application
    Filed: January 29, 2010
    Publication date: July 1, 2010
    Inventor: Prakash Patel
  • Patent number: 7678899
    Abstract: A mixture of phthalocyanine dyes of Formula (1) and salts thereof: wherein M is Cu or Ni; Pc represents a phthalocyanine nucleus; L is, for example, C1-20 alkylene; R1, R2, R3 and R4 independently are H or optionally substituted C1-4alkyl; R5 is H or an optionally substituted hydrocarbyl; or R4 and R5 together with the nitrogen atom to which they are attached represent an optionally substituted aliphatic or aromatic ring system; x, y and z are each 0.1 to 3.8 where the sum of (x+y+z) is 4; and the substituents, represented by x, y and z, are attached only to a ?-position on the phthalocyanine ring. This mixture can be used to make inks suitable for use in an ink jet printer.
    Type: Grant
    Filed: July 2, 2004
    Date of Patent: March 16, 2010
    Assignee: Fujifilm Imaging Colorants Limited
    Inventor: Prakash Patel
  • Patent number: 7641726
    Abstract: A mixture of compounds of Formula (1) and salts thereof: wherein: M is 2H, Si, a metal, an oxymetal group, a hydroxymetal group or a halometal group; Pc represents a phthalocyanine nucleus of formula; R1 is H or optionally substituted C1-4alkyl; R2 is optionally substituted alkyl; R3 is H or optionally substituted C1-4alkyl; R4 is optionally substituted heterocycyl; L is a direct covalent bond or a divalent linking group; w, x, y and z are each independently greater than zero. Also compositions and inks, printing processes, printed material and ink-jet printer cartridges.
    Type: Grant
    Filed: March 30, 2007
    Date of Patent: January 5, 2010
    Assignee: Fujifilm Imaging Colorants Limited
    Inventor: Prakash Patel
  • Patent number: 7641725
    Abstract: A mixture of compounds of Formula (1) and salts thereof: wherein: M is 2H, Si, a metal, an oxymetal group, a hydroxymetal group or a halometal group; Pc represents a phthalocyanine nucleus; R1 is H or optionally substituted C1-4alkyl; R2 is optionally substituted alkyl or optionally substituted heterocyclyl; R3 is H or optionally substituted C1-4alkyl; R4 is optionally substituted hydrocarbyl; w is 0.1 to 3.7 x is 0.1 to 3.7; y is 0.1 to 3.7; z is 0.1 to 3.7: and provided that the groups represented by y and z are different. Also compositions and inks, printing processes, printed material and ink-jet printer cartridges.
    Type: Grant
    Filed: April 11, 2006
    Date of Patent: January 5, 2010
    Assignee: Fujifilm Imaging Colorants Limited
    Inventor: Prakash Patel
  • Publication number: 20090286048
    Abstract: Compounds of Formula (1) and salts thereof: wherein: M is 2H, Si, a metal, an oxymetal group, a hydroxymetal group or a halometal group; Pc represents a phthalocyanine nucleus of formula; R1 is optionally substituted alkyl other than methyl: R2 is H, optionally substituted alkyl or optionally substituted aryl; R3 is H, optionally substituted alkyl or optionally substituted aryl; R4 is a group comprising a heterocycle and an ionisable group; L is a direct bond or a divalent linking group; x is 0.1 to 3.8; y is 0.1 to 3.8; and z is 0.1 to 3.8. Also compositions, inks, printed material and in-jet processes and cartridges.
    Type: Application
    Filed: October 30, 2006
    Publication date: November 19, 2009
    Inventor: Prakash Patel
  • Patent number: 7575627
    Abstract: A mixture of dyes of Formula (1) and salts thereof; wherein M is 2H, Si, a metal, an oxymetal group, a hydroxymetal group or a halometal group; Pc represents a phthalocyanine nucleus of formula (2); R1 is methyl; R2 is H or methyl; R3 and R4 independently are H or optionally substituted C1-4alkyl; L is a divalent linking group; A and B are independently H or a substituent. x is 0.1 to 3.8; y is 0.1 to 3.8; z is 0.1 to 3.8; the sum of (x+y+z) is 2 to 4; and the substituents, represented by x, y and z, are only attached to a ? position on the phthalocyanine ring and the dyes are free from fiber reactive groups. Also compositions, inks, printed material and in-jet processes and cartridges.
    Type: Grant
    Filed: December 2, 2005
    Date of Patent: August 18, 2009
    Assignee: Fujifilm Imaging Colorants Limited
    Inventor: Prakash Patel
  • Patent number: 7575626
    Abstract: A mixture of dyes of Formula (1) and salts thereof: wherein: M is 2H, Si, a metal, an oxymetal group, a hydroxymetal group or a halometal group; Pc represents a phthalocyanine nucleus of formula R1 and R2 independently are H or optionally substituted C1-4alkyl; L is a divalent linking group; B is a substituent. x is 0.1 to 3.8; y is 0.1 to 3.8; z is 0.1 to 3.8; the sum of (x+y+z) is 2 to 4; and the substituents, represented by x, y and z, are only attached to a ? position on the phthalocyanine ring and the dyes are free from fiber reactive groups. Also novel compositions and ink-jet printer inks, processes and cartridges.
    Type: Grant
    Filed: December 2, 2005
    Date of Patent: August 18, 2009
    Assignee: Fujifilm Imaging Colorants Limited
    Inventor: Prakash Patel
  • Publication number: 20090202798
    Abstract: A mixture of dyes of Formula (1) and salts thereof: wherein: Pc represents a phthalocyanine nucleus of formula x is 1 to 2; y is 0.1 to 2.9; z is 0.1 to 1; the sum of (x+y+z) is 2 to 4; and the substituents, represented by x, y and z, are only attached to a ? position on the phthalocyanine ring and the dye s are free from fibre reactive groups. Also novel compositions and inkjet printer inks, processes and cartridges.
    Type: Application
    Filed: June 12, 2007
    Publication date: August 13, 2009
    Inventor: Prakash Patel
  • Patent number: 7544236
    Abstract: A compound of Formula (1) in the free acid or salt form: wherein: M is 2H, Si, a metal, an oxymetal group, a hydroxymetal group or a halometal group; Pc represents a phthalocyanine nucleus of formula; each R1 and R2 independently is H, optionally substituted alkyl or optionally substituted aryl; each R3 independently is optionally substituted alkyl or optionally substituted aryl; each n independently is 1 or 2; x is 0 to 2; y is 0.1 to 2.5; x is 0.1 to 2.5; and the sum (x+y+z) is 2.2 to 4. Also compositions, ink jet printer inks, cartridges and processes and printed materials.
    Type: Grant
    Filed: October 21, 2005
    Date of Patent: June 9, 2009
    Assignee: Fujifilm Imaging Colorants Limited
    Inventors: John Mayall, Prakash Patel
  • Publication number: 20090053480
    Abstract: A mixture of compounds of Formula (1) and salts thereof: wherein: M is 2H, Si, a metal, an oxymetal group, a hydroxymetal group or a halometal group; Pc represents a phthalocyanine nucleus; R1 is H or optionally substituted C1-4alkyl; R2 is optionally substituted alkyl or optionally substituted heterocyclyl; R3 is H or optionally substituted C1-4alkyl; R4 is optionally substituted hydrocarbyl; w is 0.1 to 3.7 x is 0.1 to 3.7; y is 0.1 to 3.7; z is 0.1 to 3.7: and provided that the groups represented by y and z are different. Also compositions and inks, printing processes, printed material and ink-jet printer cartridges.
    Type: Application
    Filed: April 11, 2006
    Publication date: February 26, 2009
    Inventor: Prakash Patel
  • Patent number: 7485180
    Abstract: Compounds of Formula (1) and salts thereof: wherein: M is 2H, Si, a metal, an oxymetal group, a hydroxymetal group or a halometal group; Pc represents a phthalocyanine nucleus; R1 and R3 are H or optionally substituted C1-4 alkyl; R2 and R4 are H or optionally substituted hydrocarbyl; x is 0.0 to 3.9; y is 0.1 to 4.0; z is 0 to 3.9. Compositions, inks, ink-jet printing processes and cartridges, printed materials and ink jet printing cartridges are also disclosed.
    Type: Grant
    Filed: March 13, 2006
    Date of Patent: February 3, 2009
    Assignee: Fujifilm Imaging Colorants Limited
    Inventor: Prakash Patel
  • Publication number: 20090027466
    Abstract: A mixture of compounds of Formula (1) and salts thereof: wherein: M is 2H, Si, a metal, an oxymetal group, a hydroxymetal group or a halometal group; Pc represents a phthalocyanine nucleus of formula; R1 is H or optionally substituted C1-4alkyl; R2 is optionally substituted alkyl; R3 is H or optionally substituted C1-4alkyl; R4 is optionally substituted heterocycyl; L is a direct covalent bond or a divalent linking group; w, x, y and z are each independently greater than zero. Also compositions and inks, printing processes, printed material and ink-jet printer cartridges.
    Type: Application
    Filed: March 30, 2007
    Publication date: January 29, 2009
    Applicant: FUJIFILM IMAGING COLORANTS LIMITED
    Inventor: Prakash Patel
  • Publication number: 20090013318
    Abstract: An update system configured to provide software updates, software patches and/or other data packets to one or more computer systems via a network is disclosed. The update system may interact with a network management system, such as an enterprise management system, to distribute data packets and gather configuration information. The update system may generate and send commands to the network management system. The network management system may carry out the commands to distribute data packets and/or gather configuration information.
    Type: Application
    Filed: May 5, 2008
    Publication date: January 8, 2009
    Inventors: Harry Aderton, Richard Aderton, Prakash Patel, John Reckeweg, Gary Rietmann
  • Patent number: 7449058
    Abstract: A composition comprising: (a) a major dye component which is a mixture of phthalocyanine dyes of Formula (1) and salts thereof: wherein: Pc represents a phthalocyanine nucleus of formula; x is 0.1 to 3.8; y is 0.1 to 3.8; z is 0.1 to 3.8; the sum of x+y+z is 3 to 4; and the substituents, represented by x, y and z, are attached only to a ?-position on the phthalocyanine ring; and (b) a liquid medium. Also ink-jet inks and cartridges, printing processes, printed material and dye mixtures.
    Type: Grant
    Filed: January 6, 2006
    Date of Patent: November 11, 2008
    Assignee: Fujifilm Imaging Colorants Limited
    Inventor: Prakash Patel
  • Publication number: 20080220230
    Abstract: Process for forming an image on a substrate comprising applying an ink thereto by means of an ink-jet printer wherein the ink comprises a liquid medium and a phthalocyanine dye fraction obtainable by the fractionation of a solution and/or suspension of a mixture of phthalocyanine dyes of Formula (1), and salts thereof, by cross-flow filtration: wherein: M is 2H, copper or nickel; Pc represents a phthalocyanine nucleus; R1 and R3 independently are H or optionally substituted C1-4alkyl; R2 and R4 independently are H or optionally substituted hydrocarbyl; or R1 and R2, and, R3 and R4, independently, together with the nitrogen atom to which they are attached represent an optionally substituted aliphatic or aromatic ring system; x is 0 to 3.9; y is 0 to 3.9; z is 0.1 to 4; and the sum of (x+y+z) is 2.4 to 4.5.
    Type: Application
    Filed: November 24, 2004
    Publication date: September 11, 2008
    Applicant: AVECIA INKJET LIMITED
    Inventors: Graham Michael Watson, Jill Louise Johnson, Prakash Patel, William Albert Fern
  • Publication number: 20080134933
    Abstract: Compounds of Formula (1) and salts thereof: wherein: M is 2H, Si, a metal, an oxymetal group, a hydroxymetal group or a halometal group; Pc represents a phthalocyanine nucleus of formula; R1 is H or optionally substituted C1-4alkyl; R2 is H or optionally substituted hydrocarbyl; R3 is H or optionally substituted C1-4alkyl; R4 is H or optionally substituted hydrocarbyl; x is 0. to 3.9; y is 0.1 to 4.0; z is 0 to 3.9. Also compositions, inks, ink-jet printing processes and cartridges, printed materials and ink jet printing cartridges.
    Type: Application
    Filed: March 13, 2006
    Publication date: June 12, 2008
    Inventor: Prakash Patel
  • Publication number: 20080138592
    Abstract: A mixture of dyes of Formula (1) and salts thereof; wherein M is 2H, Si, a metal, an oxymetal group, a hydroxymetal group or a halometal group; Pc represents a phthalocyanine nucleus of formula (2); R1 is methyl; R2 is H or methyl; R3 and R4 independently are H or optionally substituted C1-4alkyl; L is a divalent linking group; A and B are independently H or a substituent. x is 0.1 to 3.8; y is 0.1 to 3.8; z is 0.1 to 3.8; the sum of (x+y+z) is 2 to 4; and the substituents, represented by x, y and z, are only attached to a ? position on the phthalocyanine ring and the dyes are free from fibre reactive groups. Also compositions, inks, printed material and in-jet processes and cartridges.
    Type: Application
    Filed: February 12, 2005
    Publication date: June 12, 2008
    Inventor: Prakash Patel
  • Publication number: 20080110369
    Abstract: A compound of Formula (1) in the free acid or salt form: wherein: M is 2H, Si, a metal, an oxymetal group, a hydroxymetal group or a halometal group; Pc represents a phthalocyanine nucleus of formula; each R1 and R2 independently is H, optionally substituted alkyl or optionally substituted aryl; each R3 independently is optionally substituted alkyl or optionally substituted aryl; each n independently is 1 or 2; x is 0 to 2; y is 0.1 to 2.5; x is 0.1 to 2.5; and the sum (x+y+z) is 2.2 to 4. Also compositions, ink jet printer inks, cartridges and processes and printed materials.
    Type: Application
    Filed: October 21, 2005
    Publication date: May 15, 2008
    Inventors: John Mayall, Prakash Patel
  • Patent number: 7370092
    Abstract: An update system configured to provide software updates, software patches and/or other data packets to one or more computer systems via a network is disclosed. The update system may interact with a network management system, such as an enterprise management system, to distribute data packets and gather configuration information. The update system may generate and send commands to the network management system. The network management system may carry out the commands to distribute data packets and/or gather configuration information.
    Type: Grant
    Filed: September 12, 2002
    Date of Patent: May 6, 2008
    Assignee: Computer Sciences Corporation
    Inventors: Harry Aderton, Richard Aderton, Prakash Patel, John Reckeweg, Gary Rietmann
  • Patent number: 7365117
    Abstract: An ethylene polymer composition having improved optical properties and masterbatch for producing the composition comprising a predetermined amount of clarifying agent, and a predetermined amount of an amide slip agent.
    Type: Grant
    Filed: December 2, 2004
    Date of Patent: April 29, 2008
    Assignee: Ampacet Corporation
    Inventors: Don Beuke, Phil Pickett, Prakash Patel, Shawn Lucas, Prashant Trivedi, Nilesh Savargaonkar