Patents by Inventor Seiiti Kubodera
Seiiti Kubodera 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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Patent number: 4975409Abstract: A heat transfer dye providing material is described, having on a support a dye providing layer containing a binder and a dye represented by formula (I): ##STR1## wherein Q represents an atomic group forming a five or more membered carbocyclic ring or a five or more membered heterocyclic ring containing at least one nitrogen atom;R.sup.1 represents an alkyl group, an alkoxy group, a halogen atom, an acylamino group, an alkoxycarbonyl group, a cyano group, a sulfonylamino group, a carbamoyl group, a sulfamoyl group, an aminocarbonylamino group, or an alkoxycarbonylamino group;R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 each represents a hydrogen atom or a group selected from the groups as defined for R.sup.1 ;R.sup.7 represents a hydrogen atom, an alkyl group, or an aryl group; andat least one of R.sup.4 and R.sup.7, R.sup.3 and R.sup.4, and R.sup.5 and R.sup.6 may be taken together to form a ring.In accordance with the invention, an image with a cyan dye of high light fastness is provided.Type: GrantFiled: November 9, 1989Date of Patent: December 4, 1990Assignee: Fuji Photo Film Co., Ltd.Inventors: Hisashi Mikoshiba, Mitsugu Tanaka, Seiiti Kubodera
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Patent number: 4973573Abstract: A thermal transfer dye-providing material is disclosed, which comprises a support having provided thereon a colorant layer, said colorant layer containing a dye represented by the following general formula (I): ##STR1## wherein R.sub.1 and R.sub.2 each represents a hydrogen atom, a halogen atom, an alkyl group, a cycloalkyl group, an alkoxy group, an aryl group, an aryloxy group, an aralkyl group, a cyano group, an acylamino group, a sulfonylamino group, a ureido group, an alkoxycarbonylamino group, an alkylthio group, an arylthio group, an alkoxycarbonyl group, a carbamoyl group, a sulfamoyl group, a sulfonyl group, an acyl group or an amino group, R.sub.3 R.sub.4 each represents an alkylene group, R.sub.5 represents a halogen atom, an alkoxycarbonyl group, an alkoxycarbonyloxy group, a cyano group, an alkoxycarbonylamino group, a ureido group, a carbamoyl group, a sulfonyl group, an acyloxy group or an acyl group, R.sub.6 represents a hydrogen atom or R.sub.Type: GrantFiled: February 7, 1990Date of Patent: November 27, 1990Assignee: Fuji Photo Film Co., Ltd.Inventors: Mitsugu Tanaka, Seiiti Kubodera, Hisashi Mikoshiba
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Patent number: 4965181Abstract: A heat-developable light-sensitive material comprising a support having provided thereon a light-sensitive layer comprising a silver halide which is spectrally sensitized with at least one dye represented by formula (I): ##STR1## wherein R.sub.0 and R.sub.1, which may be the same or different, each represents a hydrogen atom, an alkyl group, an aryl group, an alkoxy group, an aryloxy group, a halogen atom, an alkoxycarbonyl group, an acylamino group, an acyl group, a cyano group, a carbamoyl group, a sulfamoyl group, a carboxyl group, or an acyloxy group; provided that at least one of R.sub.0 and R.sub.1 represents a group other than a hydrogen atom; R.sub.2 represents a hydrogen atom, an alkyl group, or an aryl group; R.sub.3 represents an alkyl group, an aryl group, an alkoxy group, an aryloxy group, an acyl group, an acyloxy group, an alkoxycarbonyl group, or an acylamino group; provided that when R.sub.3 represents an aryl group, R.sub.0 and R.sub.Type: GrantFiled: February 28, 1990Date of Patent: October 23, 1990Assignee: Fuji Photo Film Co., Ltd.Inventors: Seiiti Kubodera, Akihiko Ikegawa, Masaki Okazaki
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Patent number: 4910187Abstract: A heat-sensitive transfer material comprising a support having provided thereon a heat-sensitive transfer layer, wherein said layer contains a dye represented by formula (I): ##STR1## wherein R.sub.1 and R.sub.2, which may be the same or different, each represents a hydrogen atom, a halogen atom, an alkyl group, a cycloalkyl group, an alkoxy group, an aryl group, aryloxy group, an aralkyl group, a cyano group, an acylamino group, a sulfonylamino group, a ureido group, an alkylthio group, an arylthio group, an alkoxycarbonyl group, carbamoyl group, a sulfamoyl group, a sulfonyl group, an acyl group, or an amino group;R.sub.3 and R.sub.4, which may be the same or different, each represents an alkyl group, a cycloalkyl group, an aralkyl group, or an aryl group;provided that either R.sub.3 and R.sub.4, R.sub.2 and R.sub.3, or R.sub.2 and R.sub.Type: GrantFiled: September 1, 1988Date of Patent: March 20, 1990Assignee: Fuji Photo Film Co., Ltd.Inventors: Kozo Sato, Takeshi Nakamine, Seiiti Kubodera
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Patent number: 4886775Abstract: A heat transfer dye-receiving sheet used in combination with a heat transfer sheet having a dye carrying layer containing a dye, said heat transfer dye-receiving sheet comprising a dye-receiving layer receiving the dye transferred from the heat transfer sheet, wherein the dye-receiving layer contains a polyester resin comprising bisphenol A, carbonic acid and phthalic acid.Type: GrantFiled: December 22, 1988Date of Patent: December 12, 1989Assignee: Fuji Photo Film Co., Ltd.Inventors: Seiiti Kubodera, Nobuhiko Minagawa
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Patent number: 4873220Abstract: A heat-sensitive transfer material comprising a support having provided thereon a coloring material layer containing a dye represented by formula (I): ##STR1## wherein Q.sup.1 represents an atomic group containing at least one nitrogen atom required to form a nitrogen-containing heterocyclic ring containing 5 or more members together with the carbon atoms to which Q.sup.1 is bonded;R.sup.1 represents an acyl group or a sulfonyl group;R.sup.2 represents a hydrogen atom or an aliphatic group containing from 1 to 6 carbon atoms;R.sup.3 represents a hydrogen atom, a halogen atom, an alkoxy group or an aliphatic group containing from 1 to 6 carbon atoms, and may be connected to R.sup.1, R.sup.2 or R.sup.4 to form a ring;R.sup.4 represents a halogen atom, an alkoxy group or an aliphatic group containing from 1 to 6 carbon atoms;R.sup.5 and R.sup.6, which may be the same or different, each represents a hydrogen atom, an aliphatic group containing from 1 to 6 carbon atoms or an aromatic group, and R.sup.5 and R.sup.Type: GrantFiled: August 25, 1988Date of Patent: October 10, 1989Assignee: Fuji Photo Film Co., Ltd.Inventors: Seiiti Kubodera, Takeshi Nakamine
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Patent number: 4830447Abstract: An optical wavelength conversion device is composed of an organic nonlinear optical material, and a cladding layer having a refractive index lower than the refractive index of the organic nonlinear optical material and covering the organic nonlinear optical material, thereby to convert a fundamental wave entering the optical wavelength conversion device to a second harmonic, and to radiate the second harmonic. At least one of device edge faces including edge faces of the organic nonlinear optical material is provided with a shielding layer for shielding the device edge face from ambient atmosphere, thereby to prevent the organic nonlinear optical material from sublimation and deterioration.Type: GrantFiled: February 11, 1988Date of Patent: May 16, 1989Assignee: Fuji Photo Film Co., Ltd.Inventors: Kozi Kamiyama, Yoji Okazaki, Masaki Okazaki, Seiiti Kubodera, Syozo Takeuchi
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Patent number: 4740455Abstract: A novel heat developable light-sensitive material is provided comprising a silver halide spectrally sensitized by a polymethine containing at least one basic nucleus wherein the dye contains, as a group for substituting nitrogen atoms in said basic nucleus, at least one of the groups represented by general formulae (A) and (B): ##STR1##--(CH.sub.2 --.sub.2 NHSO.sub.2 Rwherein m represents an integer of 1 or 2; Y represents an atomic group necessary for the formation of a cyclic imide group; and R represents a C.sub.1-4 alkyl group.In a preferred embodiment, the atomic group represented by Y is selected from the group consisting of a succinic acid imido group, a phthalic acid imido group, an orthobenzosulfimido group, and a maleimido group. The atomic group may be optionally substituted by a halogen atom, a nitro group, a carboxyl group, an acylamino group such as an acetylamino group, or an alkoxycarbonyl amino group such as an ethoxycarbonyl group.Type: GrantFiled: August 6, 1986Date of Patent: April 26, 1988Assignee: Fuji Photo Film Co., Ltd.Inventors: Seiiti Kubodera, Masaki Okazaki
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Patent number: 4713316Abstract: A heat-developable photographic material having improved preservability, which comprises a support having thereon at least one heat-developable photographic layer, said photographic material containing a dye represented by formula (I) ##STR1## wherein n and m each represents 0, 1, 2 or 3;p and q each represents 0 or 1;L represents a methine group or a substituted methine group;R.sub.1 and R.sub.2 are same or different and each represents an unsubstituted or substituted alkyl group;R.sub.3 and R.sub.4 are same or different and each represents a hydrogen atom, an alkyl group, an alkoxy group, a hydroxyl group, an unsubstituted or substituted amino group or a halogen atom; or said R.sub.3 and R.sub.4 form a condensed 6-membered ring;Z and Z' are same or different and each represents a non-metallic atomic group necessary for forming a substituted or unsubstituted 5-membered or 6-membered ring, or substituted or unsubstituted 5-membered or 6-membered ring which is condensed with another ring;X.sup..crclbar.Type: GrantFiled: December 4, 1985Date of Patent: December 15, 1987Assignee: Fuji Photo Film Co., Ltd.Inventors: Seiiti Kubodera, Toshinao Ukai, Hisashi Okada
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Patent number: 4690883Abstract: A process for forming an image is provided, comprising imagewise exposing a photosensitive material comprising on a support a photosensitive silver halide, a sensitizing dye having general formula (I) and/or (II), and a compound which forms or releases a mobile dye in proportion or counter-proportion to the reduction of the photosensitive silver halide into silver by heating, and transferring the resulting mobile dye to a dye-fixing element in the presence of a hydrophilic solvent,wherein formulas (I) and (II) are: ##STR1## wherein Z.sup.1 and Z.sup.2 represent a group of non-metallic atoms necessary to form a 5- or 6-membered heterocyclic ring; R.sup.1 and R.sup.2 represent a substituted or unsubstituted alkyl group; L.sup.1, L.sup.2, and L.sup.3 represent a substituted or unsubstituted methine group; p and q are equal to 0 or 1; m is equal to 0, 1, 2, or 3; X1.sup..crclbar. represents an anion; k is equal to 0 or 1, with the proviso that the number of organic acid groups contained in the molecule except X1.Type: GrantFiled: December 13, 1985Date of Patent: September 1, 1987Assignee: Fuji Photo Film Co., Ltd.Inventors: Seiiti Kubodera, Masaki Okazaki
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Patent number: 4677051Abstract: A heat-developable color light-sensitive material is provided comprising on a support at least a light-sensitive silver halide emulsion, a binder, a compound capable of producing or releasing a mobile dye in direct or inverse proportion to the reaction of the light-sensitive silver halide being reduced into silver at elevated temperatures, and a dye having the general formula: ##STR1## wherein each of R.sup.1 and R.sup.2 is a substituted or unsubstituted alkyl or alkenyl group,R.sup.3 is a hydrogen atom, or substituted or unsubstituted alkyl, alkoxy, aryl or alkenyl group,each of X.sup.1, X.sup.2, X.sup.3, and X.sup.4 is a hydrogen atom, halogen atom, hydroxyl, carboxyl, or substituted or unsubstituted alkyl, alkoxy, alkoxycarbonyl, acyl, acyloxyl, aryl, amino, or acylamino group,X.sup.1 and X.sup.2, and X.sup.3 and X.sup.4 can be mutually combined to form a benzene ring,A.sup.- is an anion, andn is equal to 0 or 1.Type: GrantFiled: November 26, 1985Date of Patent: June 30, 1987Assignee: Fuji Photo Film Co., Ltd.Inventors: Seiiti Kubodera, Takanori Hioki, Masaki Okazaki
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Patent number: 4637975Abstract: A heat-developable photographic material having improved preservability, which comprises a support having thereon at least one heat-developable photgraphic layer, said photographic material containing a dye represented by formula (I) ##STR1## wherein R.sub.1 and R.sub.3 each represents an unsubstituted or substituted alkyl group or alkenyl group;R.sub.2 represents a hydrogen atom or an unsubstituted or substituted alkyl group, aryl group, alkenyl group, or aromatic heterocyclic group;R.sub.4 through R.sub.7 each represents a hydrogen atom or an unsubstituted or substituted alkyl group, aryl group, or alkenyl group; or R.sub.4 and R.sub.6 together form an unsubstituted or substituted alkylene group or alkenylene group;X.sub.1 represents an oxygen atom, a sulfur atom, or the group ##STR2## wherein R.sub.8 represents a hydrogen atom, an unsubstituted or substituted alkyl group, aryl group, or alkenyl group;Y.sub.Type: GrantFiled: September 6, 1985Date of Patent: January 20, 1987Assignee: Fuji Photo Film Co., Ltd.Inventors: Seiiti Kubodera, Takanori Hioki, Masaki Okazaki
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Patent number: 4352873Abstract: A silver halide color photographic material comprising: a support; and a plurality of photographic layers including silver halide emulsion layer formed thereon, wherein one of said photographic layers is comprised of a compound containing recurring unit represented by formula (I) ##STR1## wherein R represents a hydrogen, an alkyl group having 1 to 6 carbon atoms, or a halogen group; M represents hydrogen, an alkali metal, an alkaline earth metal, or an organic base; X represents an alkyl group having 1 to 6 carbon atoms, an alkoxy group, an alkylamino group or a halogen group; m represents 0, 1, or 2 and n represents 1 or 2.Type: GrantFiled: April 27, 1981Date of Patent: October 5, 1982Assignee: Fuji Photo Film Co., Ltd.Inventors: Yuzo Toda, Junji Koizumi, Masasi Ogawa, Hidefumi Sera, Seiiti Kubodera
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Patent number: 4343886Abstract: A dye image stabilization process for color photographic sensitive elements which comprises processing a color photographic sensitive element containing at least one dye image stabilizer precursor with a solution containing divalent ions of at least one metal selected from Cu, Co, Ni, Pd and Pt is disclosed. Light fastness of dye images is thus improved.Type: GrantFiled: October 17, 1980Date of Patent: August 10, 1982Assignee: Fuji Photo Film Co., Ltd.Inventors: Kotaro Nakamura, Seiiti Kubodera, Satoru Sawada, Hiroshi Hara, Yoshiaki Suzuki, Shigeru Oono
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Patent number: 4288532Abstract: A silver halide color photographic light-sensitive material comprising a support having thereon at least one silver halide emulsion layer, said photographic light-sensitive material containing at least one cyan color-forming coupler represented by the following general formula (I): ##STR1## wherein l represents 0, 1 or 2; X represents a group capable of being released upon the coupling reaction and having at least 6 carbon atoms; Y represents RCONH--, RNHCO-- or RNHCONH-- wherein R represents a hydrogen atom, a methyl group, an ethyl group or a methyl group substituted with one or more halogen atoms; n represents 1 or 2 and Y may be the same or different when n is 2; and the phenyl group can be substituted with a halogen atom, an alkyl group having 1 to 3 carbon atoms or an alkoxy group having 1 to 3 carbon atoms. The dyes formed from the cyan color-forming couplers have unusually good spectral absorption properties and exceptional fastness to light and heat.Type: GrantFiled: February 13, 1980Date of Patent: September 8, 1981Assignee: Fuji Photo Film Co., Ltd.Inventors: Yoshio Seoka, Kozo Aoki, Yukio Yokota, Seiiti Kubodera
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Patent number: 4201589Abstract: A silver halide photo-sensitive material is provided having a hydrophilic colloid layer containing dispersed therein finely divided particles of a substantially water-immiscible mixture containing a hydrophobic photographic substance. The aforesaid mixture contains a polymer having recurring units represented by the following general formula (I) ##STR1## where, in the above formula, R.sub.1 represents a hydrogen atom or methyl group, R.sub.2 represents a hydrogen atom or substituted or unsubstituted aliphatic hydrocarbon radical containing 1 to 12 carbon atoms, X represents a bivalent substituted or unsubstituted aliphatic hydrocarbon radical containing 2 to 8 carbon atoms, and n is an integer of 1 to 50.Type: GrantFiled: April 20, 1979Date of Patent: May 6, 1980Assignees: Fuji Photo Film Co., Ltd., National Patent Development CorporationInventors: Shinji Sakaguchi, Seiiti Kubodera, Jun Arakawa, Keisuke Shiba, Nobuo Tsuji
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Patent number: 4105452Abstract: A multi-layered color photographic light-sensitive material which comprises a support having thereon at least two light-sensitive silver halide emulsion layers which provide images having substantially different hues, with the light-sensitive material including 2-equivalent couplers and/or 4-equivalent anilinopyrazolone couplers and at least one of the light-sensitive silver halide emulsion layers or a colloidal layer of the light-sensitive material containing a hydroquinone derivative or a hydroquinone precursor substituted with a heterocyclic monothio group and an aliphatic monothio group, an aryl monothio group, an aliphatic oxy group, an aryloxy group or a heterocyclic oxy group and having a ballasting group containing 8 or more carbon atoms.Type: GrantFiled: April 2, 1976Date of Patent: August 8, 1978Assignee: Fuji Photo Film Co., Ltd.Inventors: Keisuke Shiba, Toshiaki Aono, Seiiti Kubodera, Takeshi Hirose, Reiichi Ohi, Tadao Shishido
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Patent number: 4083721Abstract: A photographic coupler represented by the following formula (I)[a] -- nhcor (i)wherein A represents a cyan color forming coupler residue having a naphthol nucleus or a phenol nucleus; the RCONH-group is a substituted in the coupling position of [A], and R represents (1) an aliphatic hydrocarbon or alicyclic hydrocarbon group which has at least one electron attractive substituent in the .alpha.-position to the carbonyl group in the RCONH- group, or (2) an aryl group, a heterocyclic group, an alkoxycarbonyl group, an aryloxycarbonyl group, a carbamoyl group, an acyl group or an amino group which may be substituted with one or more electron attractive substituents, and R as defined by (1) or (2) above is a residue of a carboxylic acid of the formula RCOOH having a pKa of about 1.Type: GrantFiled: December 8, 1976Date of Patent: April 11, 1978Assignee: Fuji Photo Film Co., Ltd.Inventors: Kozo Inouye, Yukio Yokota, Akio Okumura, Keisuke Shiba, Seiiti Kubodera
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Patent number: 4032345Abstract: A photographic 2-equivalent color coupler capable of coupling with the oxidation product of an aromatic primary amine developing agent in which the coupling position is substituted with an isothiocyanato group; a color photographic emulsion, material, and developer containing the above-described 2-equivalent color coupler; and a method of forming color images comprising developing an exposed silver halide photographic material in the presence of the above-described 2-equivalent color coupler.Type: GrantFiled: August 1, 1975Date of Patent: June 28, 1977Assignee: Fuji Photo Film Co., Ltd.Inventors: Kozo Inouye, Yukio Yokota, Akio Okumura, Seiiti Kubodera, Keisuke Shiba
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Patent number: 3969116Abstract: A silver halide photographic sensitive element for flash exposure having at least a photographic silver halide emulsion layer which is characterized by containing at least a sensitizing dye having a reduction potential in a range of -0.7 volts - -1.7 volts and at least a sensitizing dye having a reduction potential in a range of -0.7 volts - -1.7 volts and an oxidation potential of larger than a value which is approximately 0.5 volts smaller than the oxidation potential of said sensitizing dye or at least a substantially colorless compound having an oxidation potential of larger than a value which is approximately 0.5 volts smaller than the oxidation potential of said sensitizing dye as the combination having a supersensitization function.Type: GrantFiled: November 18, 1974Date of Patent: July 13, 1976Assignee: Fuji Photo Film Co., Ltd.Inventors: Keisuke Shiba, Seiiti Kubodera