Patents by Inventor Toyoki Nishijima
Toyoki Nishijima 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: 20060121216Abstract: An ink-jet recording sheet including a support having thereon a porous ink receptive layer containing an oil-soluble compound dispersed with at least two nonionic surface active agents differing in HLB value.Type: ApplicationFiled: January 23, 2006Publication date: June 8, 2006Inventor: Toyoki Nishijima
-
Publication number: 20050227188Abstract: The present invention provides a method of forming a digital images exhibiting superior clearness in line images and superior visual whiteness. An image forming method of the invention comprises exposing a silver halide photographic material and processing the photographic material, wherein the photographic material contains a compound represented by the following formula (1) and a white area of the processed photographic material exhibits perception chromaticity indexes a and b of from 0.0 to +2.0 and from ?2.2 to ?4.Type: ApplicationFiled: July 18, 2002Publication date: October 13, 2005Inventors: Toyoki Nishijima, Hirokazu Sato
-
Publication number: 20050221216Abstract: A silver halide color photographic material containing a substrate, incorporating thereon a yellow color image forming layer, a magenta color image forming layer and a cyan color image forming layer, all of which incorporate photosensitive silver halide grains, wherein, when the silver halide color photographic material is exposed with a laser light at an exposure time of 10?10-10?3 seconds per pixel, and then is subjected to photographic processing to obtain a color image, a difference of VE values (?VE), between a maximum VE value and a minimum VE value, is between 0.0-0.2, in which VE is an effective gradation region of each color image forming layer in the obtained color image.Type: ApplicationFiled: July 18, 2002Publication date: October 6, 2005Inventors: Kazuhiro Miyazawa, Toyoki Nishijima
-
Patent number: 6821584Abstract: An ink-jet recording sheet comprising a support having thereon in the following order: (i) a first ink absorbing layer comprising gelatin and a first cationic polymer; and (ii) a second ink absorbing layer comprising gelatin and a second cationic polymer, wherein the first cationic polymer has a larger ink absorption ratio Ai than the second cationic polymer, the ink absorption ratio Ai being defined by the following equation: Ai (%)=((an optical density of a print after immersion in water)/(an optical density of a print before immersion in water))×100.Type: GrantFiled: May 20, 2003Date of Patent: November 23, 2004Assignee: Konica CorporationInventors: Kouji Tashiro, Toyoki Nishijima, Shinichi Suzuki, Kunimasa Hiyama, Junji Ito
-
Publication number: 20040161556Abstract: An ink-jet recording sheet including a support having thereon a porous ink receptive layer containing an oil-soluble compound dispersed with at least two nonionic surface active agents differing in HBL value.Type: ApplicationFiled: February 12, 2004Publication date: August 19, 2004Applicant: KONICA MINOLTA HOLDINGS, INC.Inventor: Toyoki Nishijima
-
Patent number: 6777175Abstract: A silver halide photographic material for direct observation comprising a support having on one side of the support, (a) a photosensitive layer comprising a silver halide emulsion; and (b) a non-photosensitive layer, wherein the photographic material comprises at least one oil-soluble dye having a maximum absorption wavelength of a spectral reflection density curve in a range of 540 to 580 nm and exhibiting an absorption density at 440 nm of not more than ¼ of an absorption density at the maximum absorption wavelength.Type: GrantFiled: February 3, 2003Date of Patent: August 17, 2004Assignee: Konica CorporationInventors: Katsumasa Yamazaki, Toyoki Nishijima
-
Publication number: 20040053164Abstract: An image recording material comprising: a substrate; an electronic element layer comprising an electronic element capable of radio communicating on the substrate; a white pigment-containing layer containing a white pigment on the electronic element layer; and an image forming layer on the white pigment-containing layer, herein, in the white pigment layer, a variation coefficient S/R of a ratio of a white pigment-occupying area per unit area is 0.25 or less, S is a standard deviation of the ratio and R is an average value of the ratio.Type: ApplicationFiled: September 8, 2003Publication date: March 18, 2004Applicant: Konica CorporationInventor: Toyoki Nishijima
-
Publication number: 20030228427Abstract: An ink-jet recording sheet comprising a support having thereon in the following order: (i) a first ink absorbing layer comprising gelatin and a first cationic polymer; and (ii) a second ink absorbing layer comprising gelatin and a second cationic polymer, wherein the first cationic polymer has a larger ink absorption ratio Ai than the second cationic polymer, the ink absorption ratio Ai being defined by the following equation: Ai (%)=((an optical density of a print after immersion in water)/(an optical density of a print before immersion in water))=100.Type: ApplicationFiled: May 20, 2003Publication date: December 11, 2003Inventors: Kouji Tashiro, Toyoki Nishijima, Shinichi Suzuki, Kunimasa Hiyama, Junji Ito
-
Publication number: 20030215761Abstract: A silver halide photographic material for direct observation comprising a support having on one side of the support, (a) a photosensitive layer comprising a silver halide emulsion; and (b) a non-photosensitive layer, wherein the photographic material comprises at least one oil-soluble dye having a maximum absorption wavelength of a spectral reflection density curve in a range of 540 to 580 nm and exhibiting an absorption density at 440 nm of not more than ¼ of an absorption density at the maximum absorption wavelength.Type: ApplicationFiled: February 3, 2003Publication date: November 20, 2003Applicant: KONICA CORPORATIONInventors: Katsumasa Yamazaki, Toyoki Nishijima
-
Publication number: 20030161608Abstract: An image reproducing apparatus is provided with an image input device to input image data provided with additional information data; a plurality of different type image output devices; a profile storing device to store a plurality of image correcting profiles each of which is prepared for a corresponding one of the plurality of different type output devices and corrects the image characteristic of the image data to conform with the image reproducing performance of the corresponding image output device; a selecting device to select one of the plurality of different type image output devices and one the plurality of image correcting profiles on a basis of the additional information data of the image data; and an image processing device to correct the image data with the selected image correcting profile and to reproduce an image on a basis of the corrected image data.Type: ApplicationFiled: February 19, 2003Publication date: August 28, 2003Applicant: Konica CorporationInventors: Toyoki Nishijima, Kazuhiro Miyazawa
-
Patent number: 5459014Abstract: A method for forming a color photographic image is disclosed. The method comprises steps ofimagewise exposing a silver halide color photographic light-sensitive material comprising a support, and a silver halide emulsion layer and a non-light-sensitive layer each provided on the support,developing the light-sensitive material with a color developer, andbleach-fixing the developed light-sensitive material with a bleach-fixing solution,wherein the silver halide emulsion layer or the non-light-sensitive layer contains a compound represented by the following Formula 1 and the color developer contains a chloride in an amount of not less than 6.times.10.sup.-2 moles per liter; ##STR1## wherein R.sub.1 is a tertiary alkyl group; R.sub.2 is a primary or a secondary alkyl group; R.sub.3, R.sub.4 and R.sub.5 are each an alkyl group, an alkoxycarbonyl group, a phenoxycarbonyl group, an alkoxy group, a phenoxy group or a phenylthio group, the groups represented by R.sub.1, R.sub.3, R.sub.4 or R.sub.Type: GrantFiled: September 7, 1994Date of Patent: October 17, 1995Assignee: Konica CorporationInventors: Toyoki Nishijima, Motoi Nishimura
-
Patent number: 5336592Abstract: A silver halide photographic light-sensitive material is disclosed. The light-sensitive material comprises a support having thereon a photographic layer including a silver halide emulsion layer wherein the outermost surface of said photographic layer has a pH value of from 5.4 to 5.9 and said silver emulsion layer contains a compound represented by the following formula I; ##STR1## wherein R.sub.1 is an alkyl group, a cycloalkyl group or an aryl group; R.sub.2 is an alkyl group, a cycloalkyl group, an acyl group or an aryl group; R.sub.3 is a substituent, n is 0 or 1; X.sub.1 is a substituent capable of splitting off upon coupling reaction with the oxidation product of a color developing agent; and Y.sub.1 is an organic group. The light-sensitive material is excellent in stability during storage and gives stable photographic characteristics even when pH value of developer is varied.Type: GrantFiled: November 3, 1992Date of Patent: August 9, 1994Assignee: Konica CorporationInventors: Shigeo Chino, Takashi Kadowaki, Toyoki Nishijima
-
Patent number: 5208140Abstract: There is disclosed a light-sensitive silver halide photographic material having at least one light-sensitive emulsion layer and at least one non-light-sensitive emulsion layer of a support, the improvement wherein a coupler represented by the following formula (M-I) and an anti-fading additive having a quenching rate constant of a singlet oxygen of 1.times.10.sup.7 M.sup.-1 .multidot.sec.sup.-1 or more provided that 2,5-dialkylhydroquinones are excluded are contained in at least one layer of the light-sensitive emulsion layer, and a compound represented by the following formula (II) is contained in at least one layer selected from the light-sensitive emulsion layer and the non-light-sensitive emulsion layer.Type: GrantFiled: September 23, 1991Date of Patent: May 4, 1993Assignee: Konica CorporationInventor: Toyoki Nishijima
-
Patent number: 5132202Abstract: A silver halide color photographic light-sensitive material having an improved light-fastness of magenta dye image is disclosed.Type: GrantFiled: August 30, 1990Date of Patent: July 21, 1992Assignee: Konica CorporationInventors: Toyoki Nishijima, Masaki Tanji
-
Patent number: 5112728Abstract: A silver halide photographic light-sensitive material comprising a support having thereon a photographic silver halide emulsion layer containing a magenta coupler, a photographic silver halide emulsion layer containing a yellow coupler, a photographic silver halide emulsion layer containing a cyan coupler and an non-light-sensitive layer containing a binder and a UV absorbent, wherein said silver halide photographic light-sensitive material has not more than 7.6 g/m.sup.2 of gelatin, said UV absorbent is liquid at an ordinary temperature, and said magenta coupler is a compound represented by Formula I; ##STR1## wherein Z represents a non-metallic group necessary to form a nitrogen-containing heterocyclic ring, X represents a hydrogen atom or a group capable of being split upon reaction with an oxidation product of a color developing agent, and R represents a hydrogen atom or a substituent.Type: GrantFiled: September 25, 1990Date of Patent: May 12, 1992Assignee: Konica CorporationInventors: Masaki Tanji, Toyoki Nishijima, Takahiro Ogawa, Shun Takada, Kazuhiro Murai
-
Patent number: 5110718Abstract: A silver halide photographic light-sensitive material comprising a support having thereon a photographic silver halide emulsion layer is disclosed.Type: GrantFiled: December 12, 1990Date of Patent: May 5, 1992Assignee: Konica CorporationInventors: Masaki Tanji, Toyoki Nishijima
-
Patent number: 5091294Abstract: A silver halide color photographic material that has at least one silver halide emulsion layer on a support, which emulsion layer contains a compound represented by the following general formula (T) and a yellow coupler represented by the following general formula (Y-I): ##STR1## (where R.sub.1 and R.sub.2 are each a hydrogen atom or an alkyl group; R.sub.3 and R.sub.4 are each a hydrogen atom, an alkyl group, an aryl group or a heterocyclic group; R.sub.5 and R.sub.6 are each a hydrogen atom, an alkyl group, an aryl group, an acyl group or an alkoxycarbonyl group; X is a divalent group having a carbon atom as a constituent atom of the 6-membered ring; and n is 0, 1 or 2): ##STR2## (where R'.sub.1 is an alkyl group or a cycloalkyl group; R'.sub.2 is an alkyl group, a cycloalkyl group, an acyl group or an aryl group; R'.sub.Type: GrantFiled: April 16, 1990Date of Patent: February 25, 1992Assignee: Konica CorporationInventors: Toyoki Nishijima, Masaki Tanji
-
Patent number: 5085978Abstract: Disclosed is a method for processing a light-sensitive silver halide photographic material having at least one silver halide emulsion layer on a reflective support, characterized in that at least one layer of the silver halide emulsion layer contains a compound represented by the formula (I) shown below, and the light-sensitive silver halide photographic material with a total amount of a hydrophilic binder contained of 7.5 g/m.sup.2 or less is processed with a color developer with an amount of the color developer replenished of 25 to 100 ml per 1 m.sup.2 of the light-sensitive silver halide photographic material: ##STR1## wherein A, R.sub.1, R.sub.2, R.sub.3, R.sub.4, X.sub.1 and X.sub.2 are as described in the description.Type: GrantFiled: October 24, 1990Date of Patent: February 4, 1992Assignee: Konica CorporationInventors: Makoto Kajiwara, Toyoki Nishijima, Shigeo Chino
-
Patent number: 5082766Abstract: A silver halide color photographic light-sensitive material is disclosed. The light-sensitive material comprises a greensen-sitive silver halide emulsion layer which contains a coupound represented by the following formula T and a magenta coupler represented by the following formula M-I: ##STR1## in formula T, R.sub.1 and R.sub.2 each is a hydrogen atom or an alkyl group; R.sub.3 and R.sub.4 each is a hydrogen atom, an alkyl group, an aryl group or a heterocyclic group; R.sub.5 and R.sub.6 each is a hydrogen atom, an alkyl group, an aryl group, an acyl group or an alkoxycarbonyl group; X is a divalent group including a carbon atom as the component of the 6-member ring of formula T; and n is an integer of zero, 1 or 2. In formula M-I, Z is a group of non-metal atoms necessary to form a nitrogen-containing heterocyclic ring; Xs is a hydrogen atom or a splitting off substitutent; and R.sub.9, R.sub.10 and R.sub.11 each is a hydrogen atom or a substituent provided that two or three groups represented by R.sub.Type: GrantFiled: May 1, 1990Date of Patent: January 21, 1992Assignee: Konica CorporationInventors: Toyoki Nishijima, Masaki Tanji, Noboru Mizukura, Shuichi Sugita
-
Patent number: 5077188Abstract: A silver halide photographic light-sensitive material is disclosed, which is improved in stability of cyan dye image formed therein. The light-sensitive material comprises a support having thereon a silver halide emulsion layer containing oleophilic dispersed particles. The particles comprises a cyan coupler represented by the following Formula I, an organic solvent selected from phthalic esters having a dielectrical constant of not more than 6.0 and a polymer compounds which is insoluble in water and soluble in a organic solvent: ##STR1## wherein R.sub.1 is a ballast group, R.sub.2 is an alkyl group having 2 or more carbon atoms and Z.sub.1 is a hydrogen atom or a substituent capable of splitting off upon reaction with the oxidation product of a color developing agent.Type: GrantFiled: February 1, 1990Date of Patent: December 31, 1991Assignee: Konica CorporationInventors: Masaki Tanji, Toyoki Nishijima, Hirokazu Sato, Tomomi Yoshizawa