Patents by Inventor Tetsuo Nakamura

Tetsuo Nakamura 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: 20050287396
    Abstract: An organic electroluminescent device and a method for producing the same, the organic electroluminescent device including a luminescent layer produced by a vapor-deposition method disposed between a pair of electrodes, the luminescent layer containing at least one host material and at least one metal complex including a partial structure represented by formula (I): wherein M represents a metal atom, R1, R2 and R4 to R8 each independently represent a hydrogen atom or a substituent, and R3 represents a group represented by formula (II), an alkoxy group or an aryloxy group: wherein R11 to R13 each independently represent a hydrogen atom or a substituent, provided that at least two of them each independently represent an alkyl group or an aryl group.
    Type: Application
    Filed: June 27, 2005
    Publication date: December 29, 2005
    Inventors: Tetsuo Nakamura, Tatsuya Igarashi, Takeshi Murakami, Masayuki Mishima
  • Publication number: 20050191519
    Abstract: To provide an organic electroluminescent device having excellent durability and having high luminous efficiency and luminance, which can be effectively utilized for surface light sources such as full color displays, backlights, and illuminating light sources and light source arrays such as printers, the organic electroluminescent device includes at least one organic compound layer containing a light emitting layer between a pair of electrodes, wherein the light emitting layer contains a host material and a phosphorescent material; the host material is a five-coordinate metal complex; and the phosphorescent material is at least one Ir complex having a specific partial structure.
    Type: Application
    Filed: February 23, 2005
    Publication date: September 1, 2005
    Inventors: Masayuki Mishima, Tatsuya Igarashi, Kazumi Nii, Tetsuo Nakamura
  • Publication number: 20050170299
    Abstract: An image-forming method comprising: employing a silver halide color photographic light-sensitive material, comprising, on a support, at least one silver halide emulsion layer containing a yellow dye-forming coupler, at least one silver halide emulsion layer containing a magenta dye-forming coupler, at least one silver halide emulsion layer containing a cyan dye-forming coupler, at least one color-mix preventing layer and at least one protective layer, wherein the said silver halide emulsion layer containing a yellow dye-forming coupler includes a blue-sensitive silver halide emulsion having a silver chloride content of 90 mole % or more and containing at least one specific blue-sensitive sensitizing dye; and exposing the said silver halide color photographic light-sensitive material to a blue semiconductor laser of a wavelength shorter by 30 nm to 60 nm than the wavelength at which the said blue-sensitive silver halide emulsion has the spectral sensitivity maximum.
    Type: Application
    Filed: March 30, 2005
    Publication date: August 4, 2005
    Inventors: Akito Yokozawa, Tatsuya Ishizaka, Katsuyuki Takada, Yoshiro Ochiai, Tetsuo Nakamura
  • Patent number: 6916601
    Abstract: An image-forming method comprising: employing a silver halide color photographic light-sensitive material, comprising, on a support, at least one silver halide emulsion layer containing a yellow dye-forming coupler, at least one silver halide emulsion layer containing a magenta dye-forming coupler, at least one silver halide emulsion layer containing a cyan dye-forming coupler, at least one color-mix preventing layer and at least one protective layer, wherein the said silver halide emulsion layer containing a yellow dye-forming coupler includes a blue-sensitive silver halide emulsion having a silver chloride content of 90 mole % or more and containing at least one specific blue-sensitive sensitizing dye; and exposing the said silver halide color photographic light-sensitive material to a blue semiconductor laser of a wavelength shorter by 30 nm to 60 nm than the wavelength at which the said blue-sensitive silver halide emulsion has the spectral sensitivity maximum.
    Type: Grant
    Filed: December 27, 2002
    Date of Patent: July 12, 2005
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Akito Yokozawa, Tatsuya Ishizaka, Katsuyuki Takada, Yoshiro Ochiai, Tetsuo Nakamura
  • Publication number: 20050037296
    Abstract: A silver halide photographic material including at least one methine dye represented by the following general formula (I) and at least one coupler represented by the following general formula (XX): wherein X1 and X2 each represents an oxygen atom, a sulfur atom, a selenium atom, a tellurium atom, or a nitrogen atom; Y1 represents a furan, pyrrole or thiophene ring which may be condensed with another 5- or 6-membered carbon ring or heterocycle or may have a substituent group; Y2 represents an atomic group necessary for forming a benzene ring or a 5- or 6-membered unsaturated heterocycle, which may be further condensed with another 5- or 6-membered carbon ring or heterocycle or may have a substituent group; a bond between two carbon atoms by which Y1 and Y2 are each condensed with the carbon ring or the heterocycle may be a single bond or a double bond; R1 and R2 each represents a substituted or unsubstituted alkyl, aryl or heterocyclic group; L1, L2 and L3 each represents a methine group; n1 represents 0
    Type: Application
    Filed: August 27, 2004
    Publication date: February 17, 2005
    Inventor: Tetsuo Nakamura
  • Publication number: 20050008982
    Abstract: A silver halide color photosensitive material, which has: at least each one layer of yellow-, magenta- and cyan-color-forming photosensitive silver halide emulsion layers on a reflective support, and at least one non-light-sensitive non-color-forming hydrophilic colloidal layer; wherein at least one of the photosensitive silver halide emulsion layers contains a silver halide emulsion containing 90 mol % or more of silver chloride, and a compound having a repetitive unit of formula (I) is contained: wherein R1 is —OR, —SR or —N—R(—R?), where R and R? are a hydrogen atom, or an alkyl, aryl, aralkyl, cycloalkyl or heterocyclic group, or R and R? may form a saturated carbon ring or a heterocycle; R2 and R3 are a hydrogen atom or an alkyl group; Y1 and Y2 are a polymethylene, arylene or cycloalkylene group; Z is —O—, —SO2— or —CH2—; and m is 0 or 1.
    Type: Application
    Filed: May 11, 2004
    Publication date: January 13, 2005
    Inventors: Akito Yokozawa, Tetsuo Nakamura, Katsuyuki Takada
  • Publication number: 20050003314
    Abstract: An image-forming method comprising: employing a silver halide color photographic light-sensitive material, comprising, on a support, at least one silver halide emulsion layer containing a yellow dye-forming coupler, at least one silver halide emulsion layer containing a magenta dye-forming coupler, at least one silver halide emulsion layer containing a cyan dye-forming coupler, at least one color-mix preventing layer and at least one protective layer, wherein the said silver halide emulsion layer containing a yellow dye-forming coupler includes a blue-sensitive silver halide emulsion having a silver chloride content of 90 mole % or more and containing at least one specific blue-sensitive sensitizing dye; and exposing the said silver halide color photographic light-sensitive material to a blue semiconductor laser of a wavelength shorter by 30 nm to 60 nm than the wavelength at which the said blue-sensitive silver halide emulsion has the spectral sensitivity maximum.
    Type: Application
    Filed: July 13, 2004
    Publication date: January 6, 2005
    Inventors: Akito Yokozawa, Tatsuya Ishizaka, Katsuyuki Takada, Yoshiro Ochiai, Tetsuo Nakamura
  • Publication number: 20040262487
    Abstract: This invention relates to a quake-absorbing device and installation method therefor.
    Type: Application
    Filed: April 28, 2004
    Publication date: December 30, 2004
    Inventors: Mitsuji Kawashima, Tetsuo Nakamura, Takumi Kikuchi, Tamotsu Kohno, Nobuo Hatano
  • Patent number: 6828087
    Abstract: A silver halide photographic material comprising at least one methine dye of formula (I) and at least one coupler of formula (X): wherein X1 and X2 each represents O, S, Se, Te, N or C; Y1 represents a furan, pyrrole or thiophene ring which may be condensed and substituted with the specific ring; Y2 represents an atomic group necessary for forming a benzene ring or a 5- or 6-membered unsaturated heterocycle; R1 and R2 each represents a substituted or unsubstituted alkyl, aryl or heterocyclic group; L1, L2 and L3 each represents a methine group; n1 represents 0 or 1; M1 represents a counter ion; and m1 represents a number of 0 or more necessary for neutralizing a charge in a molecule; wherein Z1 and Z2 each represents —C(Q3)═ or —N═; Q1 and Q3 each represents a hydrogen atom or a monovalent substituent group; Q2 represents a hydrogen atom or a coupling release group.
    Type: Grant
    Filed: September 23, 2002
    Date of Patent: December 7, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Tetsuo Nakamura
  • Patent number: 6824967
    Abstract: A method of preparing a dye solution having a high concentration and high stability, wherein a counter ion-free dye and a base having a pKa value of from 6.6 to 9.0 are dissolved in a solvent having a relative dielectric constant of at least 10 at 20° C., and a silver halide emulsion and a silver halide photographic material which are reduced in fogging by the use of the dye solution prepared in accordance with the aforesaid method.
    Type: Grant
    Filed: August 18, 2003
    Date of Patent: November 30, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Tetsuo Nakamura, Katsuyuki Takada
  • Publication number: 20040236080
    Abstract: Provided is a cell growth inhibitor that can be used for treating diseases based on abnormal cell proliferation, and in particular cancer. The cell growth inhibitor contains an anti-glypican 3 antibody as an active ingredient.
    Type: Application
    Filed: June 30, 2004
    Publication date: November 25, 2004
    Inventors: Hiroyuki Aburatani, Tetsuo Nakamura, Masayuki Tsuchiya
  • Patent number: 6794122
    Abstract: A silver halide photographic material comprising a support having thereon at least one silver halide photographic emulsion layer, wherein the emulsion layer contains at least one compound of formulae (Ia), (Ib) and (Ic) and at least one compound of formula (II): wherein Z1 represents S, O, Se, Te, N or C; R, R31 and R32 each are an alkyl, aryl or heterocyclic group; D is a group necessary for forming a methine dye; V1 to V4 represent H or a monovalent substituent; M and M3 each are a charge-balancing counter ion; m and m3 each are a number or 0 or more necessary for neutralizing the charge of the molecule; Z31 and Z32 each are an atomic group necessary for forming the nitrogen-containing hetero-ring; L31 to L37 each represent a methine group; p31 and p32 each are 0 or 1; n3 is 0, 1, 2, 3 or 4, but the compound of formula (II) does not include the compounds of formulae (Ia), (Ib) and (Ic).
    Type: Grant
    Filed: December 4, 2002
    Date of Patent: September 21, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takanori Hioki, Tetsuo Nakamura
  • Patent number: 6762015
    Abstract: A silver halide photographic emulsion which contains at least two sensitizing dyes represented by the following formula (I): Dye-((A)rQ)q(M)m  (I) wherein Dye represents a dye moiety; A represents a linking group; Q represents a dissociable group; r represents 0 or 1; q represents an integer of 2 or more; provided that at least one Q represents —SO3H and at least one Q represents a dissociable group other than —SO3H; M represents a counter ion; and m represents a number of 0 or more necessary to neutralize the electric charge in the molecule, and when 2 represents 2 or more, M's need not be the same.
    Type: Grant
    Filed: May 1, 2001
    Date of Patent: July 13, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Tetsuo Nakamura, Takanori Hioki
  • Patent number: 6759186
    Abstract: A silver halide photographic material is disclosed, comprising at least one silver halide emulsion layer provided on a support, the emulsion layer comprising a silver halide emulsion containing at least two sensitizing dyes represented by the following general formula (I): wherein X represents an oxygen atom, sulfur atom, selenium atom or NR′; R and R′ each represent a substituted or unsubstituted alkyl, aryl or heterocyclic group; D represents a group required to form a methine dye; M represents a counter ion; and m represents a number of not smaller than 0 required to neutralize the electric charge in the molecule.
    Type: Grant
    Filed: January 30, 2002
    Date of Patent: July 6, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Tetsuo Nakamura, Kimiyasu Morimura, Takanori Hioki
  • Publication number: 20040115570
    Abstract: An image-forming method comprising:
    Type: Application
    Filed: December 27, 2002
    Publication date: June 17, 2004
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Akito Yokozawa, Tatsuya Ishizaka, Katsuyuki Takada, Yoshiro Ochiai, Tetsuo Nakamura
  • Publication number: 20040043339
    Abstract: A method of preparing a dye solution having a high concentration and high stability, wherein a counter ion-free dye and a base having a pKa value of from 6.6 to 9.0 are dissolved in a solvent having a relative dielectric constant of at least 10 at 20° C., and a silver halide emulsion and a silver halide photographic material which are reduced in fogging by the use of the dye solution prepared in accordance with the aforesaid method.
    Type: Application
    Filed: August 18, 2003
    Publication date: March 4, 2004
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Tetsuo Nakamura, Katsuyuki Takada
  • Publication number: 20040038159
    Abstract: A silver halide photographic material comprising at least one methine dye of formula (I) and at least one coupler of formula (X): 1
    Type: Application
    Filed: September 23, 2002
    Publication date: February 26, 2004
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventor: Tetsuo Nakamura
  • Patent number: 6649336
    Abstract: A silver halide photographic light-sensitive material is disclosed, including at least one silver halide emulsion layer, wherein the silver halide grain contained in the emulsion layer is silver chloroiodide or silver chloroiodobromide having a silver chloride content of 90 mol % or more and a silver iodide content of 0.01 to 1.0 mol %, at least one hexacyano complex is doped in an amount of at least 1×10−7 mol % based on the total silver amount, and the emulsion layer contains a methine dye represented by the formula (I) as defined.
    Type: Grant
    Filed: September 25, 2001
    Date of Patent: November 18, 2003
    Assignee: Fuji Photo Film Co., LTD
    Inventors: Katsuhisa Ohzeki, Tetsuo Nakamura
  • Publication number: 20030190564
    Abstract: A silver halide photographic material comprising a support having thereon at least one silver halide photographic emulsion layer, wherein the emulsion layer contains at least one compound of formulae (Ia), (Ib) and (Ic) and at least one compound of formula (II): 1
    Type: Application
    Filed: December 4, 2002
    Publication date: October 9, 2003
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Takanori Hioki, Tetsuo Nakamura
  • Patent number: 6566044
    Abstract: The present invention provides a silver halide photographic material that is excellent in photographic speed as well as image graininess and exhibits low residual color even after rapid processing. The silver halide photographic material contains a compound represented by formula (I) and a compound represented by formula (II), as defined.
    Type: Grant
    Filed: March 26, 2001
    Date of Patent: May 20, 2003
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Katsuhisa Ohzeki, Tetsuo Nakamura, Takanori Hioki