Patents by Inventor Masayuki Kuramitsu
Masayuki Kuramitsu 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: 20230145144Abstract: The present invention provides a composition containing an antibacterial agent, which suppresses occurrence of rust even in a case of being applied to a metal base material such as SUS; a wet wiper; a spray; a mask with an antibacterial agent; a face guard with an antibacterial agent; and an antibacterial liquid material. The composition of the present invention contains a hydrophilic component selected from the group consisting of a hydrophilic binder precursor and a hydrophilic binder, an antibacterial agent, and a solvent, in which a first antibacterial activity value obtained by a predetermined test 1 is 4.0 or less, and a second antibacterial activity value obtained by a predetermined test 2 is 4.0 or more.Type: ApplicationFiled: December 29, 2022Publication date: May 11, 2023Applicant: FUJIFILM CorporationInventors: Shinsuke MOROMIZATO, Masayuki KURAMITSU
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Publication number: 20230120388Abstract: An object of the present invention is to provide an antibacterial film having an antiglare function and excellent image visibility, a touch panel, and a manufacturing method for an antibacterial film. An antibacterial film of the present invention contains a base material and at least one antibacterial layer disposed on the base material, in which the antibacterial layer contains a binder, a light diffusing particle, and an antibacterial agent particle and satisfies a specific condition 1.Type: ApplicationFiled: December 14, 2022Publication date: April 20, 2023Applicant: FUJIFILM CorporationInventors: Shinsuke MOROMIZATO, Takahiro NAKAZAWA, Masayuki KURAMITSU
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Patent number: 8251562Abstract: A unitary light guide plate includes a light exit plane, a thick portion located substantially on a center portion of the light exit plane, thin end portions formed on both sides of the thick portion, a half portion of a parallel groove formed on a backside of the light exit plane to accommodate linearly arranged light sources, inclined back portions arranged so as to become thinner from the thick portion to the thin end portions, and scattering means for scattering light entering from the light sources accommodated in the parallel groove into the thin end portions and propagated through the inclined back portions toward the thick portion. A light guide plate unit has two or more of the unitary light guide plates coupled together in such a way that respective light exit planes are arranged to form a same plane.Type: GrantFiled: July 23, 2007Date of Patent: August 28, 2012Assignee: FUJIFILM CorporationInventors: Masayuki Kuramitsu, Toshiaki Endo
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Publication number: 20120179384Abstract: There is provided a method for analyzing nucleic acid mutation using an array comparative genomic hybridization technique, which reduces the false positive and the false negative and improves the reliability of the analysis results. A method for analyzing nucleic acid mutation using array comparative genomic hybridization technique comprising: [(a) a step of bringing a plurality of labeled sample nucleic acids one by one into contact with the plural same probe nucleic acid sets], [(b) a step of obtaining label intensities], [(c) a step of determining whether each piece of comparison values falls within a prescribed numerical value range or not], and [(d) a step of comparing whether the number of the comparison values exceeds a prescribed number or not and, in the case of exceeding the prescribed number, judging the spot positive].Type: ApplicationFiled: September 9, 2010Publication date: July 12, 2012Inventors: Masayuki Kuramitsu, Yoshihide Iwaki, Dai Ujihara
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Publication number: 20100002169Abstract: A unitary light guide plate includes a light exit plane, a thick portion located substantially on a center portion of the light exit plane, thin end portions formed on both sides of the thick portion, a half portion of a parallel groove formed on a backside of the light exit plane to accommodate linearly arranged light sources, inclined back portions arranged so as to become thinner from the thick portion to the thin end portions, and scattering means for scattering light entering from the light sources accommodated in the parallel groove into the thin end portions and propagated through the inclined back portions toward the thick portion. A light guide plate unit has two or more of the unitary light guide plates coupled together in such a way that respective light exit planes are arranged to form a same plane.Type: ApplicationFiled: July 23, 2007Publication date: January 7, 2010Applicant: Fujifilm CorporationInventors: Masayuki Kuramitsu, Toshiaki Endo
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Patent number: 7115357Abstract: A silver halide color reversal photosensitive material comprising a blue-sensitive emulsion layer unit containing a yellow color-forming coupler, a green-sensitive emulsion layer unit containing a magenta color-forming coupler and a red-sensitive emulsion layer unit containing a cyan color-forming coupler, on a transparent support, wherein the material includes at least one interimage effect-donating layer substantially forms no image; the wavelength, ?rmax, at which the maximum sensitivity of the spectral sensitivity distribution of the red-sensitive layer unit is given, satisfies the relation: 620 nm??rmax?680 nm; and the sensitivities of the red-sensitive layer unit satisfy the following relationships: Sr(610) is ? of Sr(?rmax) or more; Sr(680) is 1/10 of Sr(?rmax) or more; and/or Sr(690) is 1/50 of Sr(?rmax) or more wherein Sr(610), Sr(680) and Sr(690) are the sensitivities of the red-sensitive unit at 610 nm, 680 nm and 690 nm, respectively, and Sr(?rmax) is the maximum sensitivity at ?rmax.Type: GrantFiled: April 20, 2004Date of Patent: October 3, 2006Assignee: Fuji Photo Film Co., Ltd.Inventors: Nobuyuki Haraguchi, Masayuki Kuramitsu, Naoto Matsuda
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Publication number: 20040229174Abstract: A silver halide color reversal photosensitive material comprising a blue-sensitive emulsion layer unit containing a yellow color-forming coupler, a green-sensitive emulsion layer unit containing a magenta color-forming coupler and a red-sensitive emulsion layer unit containing a cyan color-forming coupler, on a transparent support, wherein the material includes at least one interimage effect-donating layer substantially forms no image; the wavelength, &lgr;rmax, at which the maximum sensitivity of the spectral sensitivity distribution of the red-sensitive layer unit is given, satisfies the relation: 620 nm≦&lgr;rmax≦680 nm; and the sensitivities of the red-sensitive layer unit satisfy the following relationships: Sr(610) is ⅕ of Sr(&lgr;rmax) or more; Sr(680) is {fraction (1/10)} of Sr(&lgr;rmax) or more; and/or Sr(690) is {fraction (1/50)} of Sr(&lgr;rmax) or more wherein Sr(610), Sr(680) and Sr(690) are the sensitivities of the red-sensitive unit at 610 nm, 680 nm and 690 nm, respectively, andType: ApplicationFiled: April 20, 2004Publication date: November 18, 2004Applicant: FUJI PHOTO FILM CO., LTD.Inventors: Nobuyuki Haraguchi, Masayuki Kuramitsu, Naoto Matsuda
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Patent number: 6746834Abstract: A silver halide color reversal photographic material comprises, on a transparent support, at least one each of blue-, green-, and red-sensitive emulsion layer units. The lightsensitive material further has means for regulating an interimage effect. The red-sensitive unit satisfies the relation: 620 nm≦&lgr;rmax≦660 nm &lgr;rmax is the wavelength at which the maximum sensitivity of the spectral sensitivity distribution of the red-sensitive unit is given. The red- and green-sensitive units satisfy the relations: Sr(&lgr;rmax)−Sr(580)≦1.0 and −0.5≦Sr(580)−Sg(580)≦0.5 Sr(&lgr;rmax) is the maximum sensitivity of the red-sensitive unit, Sr(580) and Sg(580) are the sensitivity at 580 nm of the red- and green-sensitive unit, respectively. Magnitude of the interimage effect satisfies the relations: IIEgr≧0.15 and IIErg≧0.0 IIEgr is the magnitude of the interimage effect from the green- to red-sensitive units, and IIErg is that from the red- to green-sensitive units.Type: GrantFiled: March 18, 2002Date of Patent: June 8, 2004Assignee: Fuji Photo Film Co., Ltd.Inventors: Masayuki Kuramitsu, Minoru Sato
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Patent number: 6656670Abstract: A silver halide color photographic material includes at least one blue-sensitive emulsion layer, at least one green-sensitive emulsion layer and at least one red-sensitive emulsion layer, on a support. The photographic material further includes at least one short-wavelength blue-sensitive emulsion layer that has a weight-averaged wavelength (&lgr;v) of spectral sensitivity distribution of 400 nm≦&lgr;v≦460 nm and that is substantially free a yellow coupler.Type: GrantFiled: March 18, 2002Date of Patent: December 2, 2003Assignee: Fuji Photo Film Co., Ltd.Inventors: Minoru Sato, Masayuki Kuramitsu
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Publication number: 20030087209Abstract: A silver halide color reversal photographic material comprises, on a transparent support, at least one each of blue-, green-, and red-sensitive emulsion layer units. The lightsensitive material further has means for regulating an interimage effect.Type: ApplicationFiled: March 18, 2002Publication date: May 8, 2003Applicant: FUJI PHOTO FILM CO., LTD.Inventors: Masayuki Kuramitsu, Minoru Sato
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Publication number: 20030077548Abstract: A silver halide color photographic material includes at least one blue-sensitive emulsion layer, at least one green-sensitive emulsion layer and at least one red-sensitive emulsion layer, on a support. The photographic material further includes at least one short-wavelength blue-sensitive emulsion layer that has a weight-averaged wavelength (&lgr; v) of spectral sensitivity distribution of 400 nm≦&lgr; v≦460 nm and that is substantially free a yellow coupler.Type: ApplicationFiled: March 18, 2002Publication date: April 24, 2003Applicant: FUJI PHOTO FILM CO., LTD.Inventors: Minoru Sato, Masayuki Kuramitsu
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Patent number: 6048673Abstract: The present invention relates to a color reversal photographic light-sensitive material, and particularly to a color reversal photographic light-sensitive material improved in skin color (flesh color) reproduction. More specifically, it relates to a color reversal photographic light-sensitive material that is excellent in tone reproduction of gray and skin colors, and that also exhibits a preferable chroma (colorfulness or saturation) with respect to skin colors of different tints.Type: GrantFiled: February 19, 1998Date of Patent: April 11, 2000Assignee: Fuji Photo Film Co., Ltd.Inventors: Masayuki Kuramitsu, Sadanobu Shuto, Shigeru Kuwashima, Makoto Yamada
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Patent number: 6040127Abstract: A method for producing a silver halide emulsion in which grains having an aspect ratio of from 1.5 to 100 occupy from 75 to 100% of the total projected area of all grains comprising at least nucleation, ripening and grain growth processes in a dispersion medium solution containing water and a dispersion medium, wherein the dispersion medium solution contains low molecular weight gelatin having a molecular weight of from 1,000 to 70,000 at least during a nucleation process and chemically modified gelatin having a chemical modification rate of the amino group of from 15% to 100% at least during a grain growth process.Type: GrantFiled: December 31, 1996Date of Patent: March 21, 2000Assignee: Fuji Photo Film Co., Ltd.Inventors: Masayuki Kuramitsu, Mitsuo Saitou, Yutaka Maeno, Takefumi Hara
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Patent number: 5437972Abstract: Disclosed is a novel silver halide photographic material comprising a support having thereon (a) a layer containing at least one methine compound represented by the following general formula (I) and (b) a layer containing at least one methine compound represented by the following general formula (II), (III), (IV) or (V): ##STR1## wherein the variables in the formulas are defined in the detailed description. In a preferred embodiment, the silver halide photographic material comprises at least one methine compound represented by general formula (I) and at least one methine compound represented by general formula (II) or (V) in the same layer.Type: GrantFiled: January 27, 1994Date of Patent: August 1, 1995Assignee: Fuji Photo Film Co., Ltd.Inventors: Akihiko Ikegawa, Masayuki Kuramitsu, Masaki Okazaki
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Patent number: 5422238Abstract: A novel silver halide photographic material comprising at least one methine compound represented by the following general formula (I): ##STR1## wherein R.sup.1 represents --(CH.sub.2).sub.r --CONHSO.sub.2 --R.sup.3, --(CH.sub.2).sub.s --SO.sub.2 NHCO--R.sup.4, --(CH.sub.2).sub.t --CONHCO--R.sup.5 or --(CH.sub.2).sub.u --SO.sub.2 NHSO.sub.2 --R.sup.6 in which R.sup.3, R.sup.4, R.sup.5 and R.sup.6 each represents an alkyl group, alkoxy group or amino group, r, s, t and u each represents an integer 1 to 5; and R.sup.2 represents has the same meaning as R.sup.1 or represents an alkyl group; Z.sup.1 and Z.sup.2 each represents a nonmetallic atom group required to form a 5- or 6-membered heterocyclic group; p and q each represents an integer 0 or 1; L.sub.1, L.sub.2 and L.sub.3 each represents a methine group; m represents an integer 0 to 2; X represents an anion; and k represents an integer required to adjust the charge in the molecule to 0.Type: GrantFiled: December 13, 1993Date of Patent: June 6, 1995Assignee: Fuji Photo Film Co., Ltd.Inventors: Akihiko Ikegawa, Masayuki Kuramitsu, Masaki Okazaki
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Patent number: 5310645Abstract: Disclosed is a novel silver halide photographic material is provided comprising a support having thereon (a) a layer containing at least one methine compound represented by the following general formula (I) and (b) a layer containing at least one methine compound represented by the following general formula (II), (III), (IV) or (V): ##STR1## wherein the variables in the formulas are defined in the detailed description. In a preferred embodiment, the silver halide photographic material comprises at least one methine compound represented by general formula (I) and at least one methine compound represented by general formula (II) or (V) in the same layer.Type: GrantFiled: October 6, 1992Date of Patent: May 10, 1994Assignee: Fuji Photo Film Co., Ltd.Inventors: Akihiko Ikegawa, Masayuki Kuramitsu, Masaki Okazaki
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Patent number: 5290676Abstract: Disclosed herein is a silver halide photographic light-sensitive material having at least one silver halide emulsion layer formed on a support. Said light-sensitive material having at least one layer contains a regular silver halide emulsion, a tabular silver halide emulsion containing tabular silver halide grains having an average diameter/average thickness ratio of 2 or more, which occupy 50% or more of the total projected area of all silver halide grains, and a silver halide emulsion containing internal latent-image silver halide grains each chemically sensitized to the depth of less than 0.02 .mu.m from the surface of the grain. Each of these emulsions contains at least one methine compound represented by the following formula (I): ##STR1## where R.sup.1 is --(CH.sub.2).sub.r --CONHSO.sub.2 --R.sub.3 or --(CH.sub.2).sub.s --SO.sub.2 NHCO--R.sub.4, where R.sup.3 and R.sup.4 are an alkyl group, r and s are an integer ranging from 1 to 5; R.sup.2 is a sulfoalkyl group; Z.sup.1 and Z.sup.Type: GrantFiled: September 14, 1992Date of Patent: March 1, 1994Assignee: Fuji Photo Film Co., Ltd.Inventors: Katsurou Nagaoka, Akihiko Ikegawa, Masayuki Kuramitsu