Patents by Inventor Takatugu Suzuki

Takatugu Suzuki 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: 20060073403
    Abstract: An azomethine dye represented by the following Formula 1: wherein Y represents a substituent of 0.2??p?0.9, Z1 and Z2 each represent —CR1?, where R1 represents a hydrogen atom or a substituent, or —N?, L represents the group represented by the following Formula 1a, X represents an unsubstituted or substituted di-alkylamino group, R represents an unsubstituted or substituted alkyl group, and n represents an integer more than 0. wherein B represents a group of non-metallic atoms which are necessary to form a heterocyclic ring.
    Type: Application
    Filed: July 1, 2005
    Publication date: April 6, 2006
    Inventors: Emiko Kataoka, Takatugu Suzuki, Dai Ikemizu
  • Patent number: 7011701
    Abstract: A dye is disclosed, which is represented by the following formula: wherein Z is an atomic group necessary to form a 6-membered nitrogen containing aromatic ring; R11 is a hydrogen bonding group; R12, R13 and R14 are independently a hydrogen atom or a substituent; n11 and n13 are each an integer of 1 to 4; n12 is an integer of 1 to 3. There is also disclosed an ink for ink jet printing which contains the foregoing dye.
    Type: Grant
    Filed: November 19, 2003
    Date of Patent: March 14, 2006
    Assignee: Konica Minolta Holdings, Inc.
    Inventors: Kyoko Iwamoto, Hidetaka Ninomiya, Satoru Ikesu, Takatugu Suzuki, Mari Takahashi
  • Publication number: 20060046177
    Abstract: A metal complex dye is disclosed, containing a dye as a ligand represented by the following formula (1). A color toner and a color filter containing the metal complex dye are also disclosed.
    Type: Application
    Filed: August 18, 2005
    Publication date: March 2, 2006
    Applicant: KONICA MINOLTA HOLDINGS, INC.
    Inventors: Koji Daifuku, Takatugu Suzuki, Kaori Ono
  • Publication number: 20060003892
    Abstract: A thermal transfer recording material contains at least one colorant represented by the following general formula (II), wherein R21 and R22 each represent a substituted or unsubstituted aliphatic group; R23 represents a substituent; n represents an integer of 0 to 4; when n is 2 or more, R23 is the same or different each other; R25 and R26 represent alkyl groups respectively; and at least one of R25 and R26 represents a secondary alkyl group.
    Type: Application
    Filed: July 1, 2005
    Publication date: January 5, 2006
    Inventors: Dai Ikemizu, Emiko Kataoka, Takatugu Suzuki, Kazuya Yoshida, Hiroyuki Yamashita
  • Publication number: 20050250645
    Abstract: A thermal transfer recording material contains at least one colorant represented by the following general formula (I): wherein R1 represents a trifluoromethyl, alkyl, aryl, alkoxy, alkoxycarbonyl, acyl, acyloxy, amide, carbamoyl, amino, or cyano group; R2 represents alkyl, acyl, carbamoyl, or alkoxycarbonyl group; R3 represents alkyl, alkenyl or aryl group; a total number of carbon atoms in R1 and R2 is 3 or more; X represents —CR4R5—, —S—, —O— or —NR6—; R4 and R5 respectively represent hydrogen, halogen, or a substituent; R6 represents hydrogen or a substituent; and Y represents an atom group required for forming a 5- to 6-memberd ring.
    Type: Application
    Filed: July 1, 2005
    Publication date: November 10, 2005
    Inventors: Kaori Ono, Takatugu Suzuki, Kazuya Yoshida, Hiroyuki Yamashita
  • Publication number: 20050239920
    Abstract: A colored dispersion containing water and a plurality of microparticles having a core-shell structure, each microparticle containing: (a) a colorant; (b) a core forming resin; and (c) a shell forming resin, wherein the colorant has a hydrophobicity value (log P) larger than the core forming resin by 8.0 to 12.0.
    Type: Application
    Filed: April 14, 2005
    Publication date: October 27, 2005
    Applicant: KONICA MINOLTA HOLDINGS, INC.
    Inventors: Kaori Ono, Takatugu Suzuki
  • Publication number: 20050192181
    Abstract: A thermal transfer recording material including a support having thereon a metal containing compound derived from a divalent metal salt and a compound represented by Formula (I), the metal containing compound having a property to form a metal-chelated dye by heating with a metal chelating dyes represented by Formulas (1), (2) or (4).
    Type: Application
    Filed: February 17, 2005
    Publication date: September 1, 2005
    Applicant: KONICA MINOLTA PHOTO IMAGING, INC.
    Inventors: Dai Ikemizu, Satoru Ikesu, Takatugu Suzuki
  • Patent number: 6927020
    Abstract: A silver halide color photographic material is disclosed, comprising on a support a silver halide emulsion layer comprising an yellow dye forming coupler represented by formula (I): A—B??formula (I) wherein A is represented by formula (Ia), (Ia?), (Ia?), (Ib), (Ic), (Id), (Id?), (Ie), (Ie?), (Ie?), (If) or (If?); and B is represented by formula (II) described in the specification.
    Type: Grant
    Filed: February 5, 2004
    Date of Patent: August 9, 2005
    Assignee: Konica Minolta Holdings, Inc.
    Inventors: Rie Sakuragi, Satoru Ikesu, Takatugu Suzuki
  • Publication number: 20050103226
    Abstract: An anthraquinone dye represented by the Formula (1), (2) or (3), and an ink jet recording liquid containing a compound represented by the following Formula (1), (2) or (3):
    Type: Application
    Filed: November 12, 2004
    Publication date: May 19, 2005
    Inventors: Takatugu Suzuki, Satoru Ikesu, Mari Takahashi
  • Publication number: 20040254262
    Abstract: An ink jet recording liquid exhibiting superior image color and improved color image fastness is disclosed, comprising a medium and an oil-soluble dye represented by the following formulas.
    Type: Application
    Filed: June 4, 2004
    Publication date: December 16, 2004
    Applicant: Konica Minolta Holdings, Inc.
    Inventors: Satoru Ikesu, Takatugu Suzuki, Mari Takahashi
  • Publication number: 20040157173
    Abstract: A silver halide color photographic material is disclosed, comprising on a support a silver halide emulsion layer comprising an yellow dye forming coupler represented by formula (I):
    Type: Application
    Filed: February 5, 2004
    Publication date: August 12, 2004
    Applicant: KONICA MINOLTA HOLDINGS, INC.
    Inventors: Rie Sakuragi, Satoru Ikesu, Takatugu Suzuki
  • Publication number: 20040106782
    Abstract: A dye is disclosed, which is represented by the following formula: 1
    Type: Application
    Filed: November 19, 2003
    Publication date: June 3, 2004
    Applicant: KONICA MINOLTA HOLDINGS, INC.
    Inventors: Kyoko Iwamoto, Hidetaka Ninomiya, Satoru Ikesu, Takatugu Suzuki, Mari Takahashi
  • Publication number: 20040010056
    Abstract: A colored dispersion comprising a polymer and a dye represented by General Formula (1):
    Type: Application
    Filed: June 20, 2003
    Publication date: January 15, 2004
    Applicant: KONICA CORPORATION
    Inventors: Mari Takahashi, Satoru Ikesu, Takatugu Suzuki, Kyoko Iwamoto
  • Patent number: 6399815
    Abstract: Disclosed is a process to prepare a sulfinate, which is useful for preparing a synthetic intermediate of an organic compound, especially for a color coupler, characterized by reducing a sulfonyl chloride with a sulfite or a hydrogensulfite in the presence of a hydrogenphosphate.
    Type: Grant
    Filed: June 26, 2001
    Date of Patent: June 4, 2002
    Assignee: Konica Corporation
    Inventor: Takatugu Suzuki
  • Publication number: 20020013493
    Abstract: Disclosed is a process to prepare a sulfinate, which is useful for preparing a synthetic intermediate of an organic compound, especially for a color coupler, characterized by reducing a sulfonyl chloride with a sulfite or a hydrogensulfite in the presence of a hydrogenphosphate.
    Type: Application
    Filed: June 26, 2001
    Publication date: January 31, 2002
    Inventor: Takatugu Suzuki
  • Patent number: 6284448
    Abstract: A silver halide light sensitive color photographic material is disclosed, comprising a support having thereon a silver halide emulsion layer, the photographic material further comprising a 2-equivalent yellow coupler exhibiting superior dye forming capability and enhanced solubility in a solvent, and represented by the following formula:
    Type: Grant
    Filed: June 27, 2000
    Date of Patent: September 4, 2001
    Assignee: Konica Corporation
    Inventors: Takatugu Suzuki, Noriko Ueda, Takayuki Suzuki, Katsuji Ota, Satoru Ikesu
  • Patent number: 6025120
    Abstract: A silver halide color photographic light sensitive material is disclosed.
    Type: Grant
    Filed: July 10, 1998
    Date of Patent: February 15, 2000
    Assignee: Konica Corporation
    Inventors: Takatugu Suzuki, Shuichi Sugita
  • Patent number: 5968723
    Abstract: A silver halide color photographic light sensitive material is disclosed, comprising a support having thereon photographic component layers including a blue-sensitive silver halide emulsion layer, green-sensitive silver halide emulsion layer and a red-sensitive silver halide emulsion layer, wherein the green-sensitive silver halide emulsion layer comprises a magenta coupler represented by the following formula: ##STR1##
    Type: Grant
    Filed: May 28, 1997
    Date of Patent: October 19, 1999
    Assignee: Konica Corporation
    Inventors: Takatugu Suzuki, Shuichi Sugita
  • Patent number: 5576166
    Abstract: A silver halide light-sensitive color photographic material is disclosed. A green-sensitive silver halide emulsion layer of the material comprises a coupler the formula M-I or formula M-II defined in the specification, and the color photographic material provides enhanced sensitivity and excellent color reproduction property when it is printed, and improved resistance against formalin gas and storage preservation property before exposure.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: November 19, 1996
    Assignee: Konica Corporation
    Inventors: Shuichi Sugita, Shinri Tanaka, Takatugu Suzuki, Manabu Kaneko
  • Patent number: 5556740
    Abstract: A heat-developable photosensitive material for use in diffusion transfer process is disclosed, comprising a support having in one or more layers a hydrophilic binder, photosensitive silver halide and dye-providing compound represented by the following formula,[A-(J.sub.1).sub.a -(X).sub.b ].sub.c -J.sub.2 -Dyewhich is capable of releasing [-(J.sub.1).sub.a -(X).sub.b ].sub.c -J.sub.2 -Dye residue upon cleavage in the presence of a silver ion or a soluble silver complex.
    Type: Grant
    Filed: November 20, 1995
    Date of Patent: September 17, 1996
    Assignee: Konica Corporation
    Inventors: Takatugu Suzuki, Atsushi Tomotake, Hidenobu Ohya, Nobuyuki Takiyama