Patents by Inventor Shigeto Hirabayashi
Shigeto Hirabayashi 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: 20080176041Abstract: Disclosed is a low-cost resin film substrate for organic electroluminescence which comprises a gas barrier layer having high gas barrier properties while being improved in light taking-out efficiency. Also disclosed is an organic electroluminescence device using such a resin film substrate. Specifically disclosed is a resin film substrate for organic electroluminescence comprising at least one gas barrier layer on a resin film. This resin Film substrate is characterized in that the surface of the outermost layer on the side having the gas barrier layer has a concavo-convex structure for diffracting of diffusing light.Type: ApplicationFiled: March 1, 2006Publication date: July 24, 2008Applicant: KONICA MINOLTA HOLDINGS, INCInventors: Akira Sato, Shigeto Hirabayashi, Tomoyuki Nakayama, Hiroshi Kita, Kazuhiro Fukuda, Toshihiro Takahata
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Publication number: 20020055069Abstract: An image information recording method is disclosed.Type: ApplicationFiled: March 7, 2001Publication date: May 9, 2002Inventors: Yoshiko Iwai, Shigeto Hirabayashi
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Patent number: 6376161Abstract: An image information recording method is disclosed. The method comprises the steps of imagewise exposed to light a silver halide photographic light-sensitive material comprising a support having thereon a light-sensitive layer comprising light-sensitive silver halide and a coupler, color developing the image wise exposed silver halide photographic light-sensitive material, converting the image information formed on the silver halide photographic light-sensitive material to electric information while the light-sensitive material is wetted without a drying and at least a part of developed silver is remained in the light-sensitive material, and recording the image information on another recording medium according as electric image information.Type: GrantFiled: March 7, 2001Date of Patent: April 23, 2002Assignee: Konica CorporationInventors: Yoshiko Iwai, Shigeto Hirabayashi
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Patent number: 6010809Abstract: A silver halide light-sensitive color photographic material is disclosed. The material comprises thermotropic low molecular crystal. The material is improved in light fastness of a dye image and dye-forming efficiency.Type: GrantFiled: June 10, 1998Date of Patent: January 4, 2000Assignee: Konica CorporationInventors: Fumio Ishii, Shinichi Daiba, Tomohiro Oshiyama, Shigeto Hirabayashi, Yoshiko Iwai
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Patent number: 5998117Abstract: A silver halide photographic light-sensitive material is disclosed. The light-sensitive material comprises a support and one or more photographic constituent layers and at least one of said layers contains a dye capable of being decolored by reacting with a color developing agent.Type: GrantFiled: March 6, 1997Date of Patent: December 7, 1999Assignee: Konica CorporationInventors: Motoaki Sugino, Nobuaki Kagawa, Shigeto Hirabayashi, Atsushi Tomotake, Satoshi Nakagawa
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Patent number: 5998109Abstract: A method for developing a silver halide photographic light-sensitive material, wherein a silver halide photographic light-sensitive material containing at least three mosaic-like or stripe-like filter layers having different spectral transmission characteristics and at least one silver halide emulsion layer is exposed, thereafter said silver halide photographic light-sensitive material is processed by coating a processing solution or spraying a processing solution which consists of a developer containing at least one developing agent.Type: GrantFiled: December 21, 1998Date of Patent: December 7, 1999Assignee: Konica CorporationInventor: Shigeto Hirabayashi
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Patent number: 5834164Abstract: An image forming method is disclosed, comprising exposing a silver halide photographic light sensitive material comprising a support having thereon a silver halide emulsion layer containing a dye forming coupler and processing the exposed photographic material, wherein the coupler has, in its molecule, at least two sites capable of chelating with a metal ion to form a 5-membered or 6-membered chelate ring, thereby forming, together with a developing agent and the metal ion, a chelate dye.Type: GrantFiled: May 10, 1996Date of Patent: November 10, 1998Assignee: Konica CorporationInventors: Noritaka Nakayama, Tatsuo Tanaka, Shigeto Hirabayashi
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Patent number: 5534400Abstract: A silver halide color photographic light-sensitive material comprises a green-sensitive silver halide emulsion layer containing a magenta coupler is disclosed. The magenta coupler is represented by a coupler of a formula: ##STR1## In the formulae R represents a primary alkyl group having 5 or more carbon atoms; X represents a hydrogen atom or a substituent which splits off upon reaction with the oxidation product of a color developing agent; Z represents a group of non-metal atoms necessary to form a nitrogen-containing heterocyclic ring; R.sub.21 represents an alkylene or alkenylene group having a primary carbon atom bound directly to Z; R.sub.22 represents an alkyl group.Type: GrantFiled: January 5, 1995Date of Patent: July 9, 1996Assignee: Konica CorporationInventors: Shigeto Hirabayashi, Shuichi Sugita
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Patent number: 5449592Abstract: A silver halide color photographic light-sensitive material for making a color proof and a method for making the color proof using the light-sensitive material. Halftone color proofs having a similar color tone of small dots and large dots can be obtained by the light-sensitive material and the method using it. The silver halide color photographic light-sensitive material comprises a yellow image forming light-sensitive layers, a magenta image foming light-sensitive layer and a cyan image forming light-sensitive layer which are different from each other in spectral sensitivity, and the magenta image forming layer contains a magenta coupler and an yellow coupler.Type: GrantFiled: July 14, 1994Date of Patent: September 12, 1995Assignee: Konica CorporationInventors: Tomomi Yoshizawa, Keiji Ogi, Nariko Kimura, Shigeto Hirabayashi
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Patent number: 5380639Abstract: A silver halide color photographic material containing a compound capable of the timed release of photographically useful groups is disclosed. The material contains at least one compound of the formula (I): ##STR1## wherein R.sub.1 is an alkyl group; R.sub.2 is an alkyl or aryl group; R.sub.3 is an oxycarbonyl, sulfonamido, carbamoyl, acylamino, ureido, oxycarbonylamino, sulfonyloxy, carbonyloxy or sulfamoyl group; R.sub.4 is a substituent; n is 0, 1, 2 or 3; and X is a group, preferably of the formula (II) or (III), which, when eliminated upon coupling with the oxidation product of a developing agent, forms an o-quinonemethide or p-quinonemethide to release a development inhibitor or a precursor thereof.Type: GrantFiled: August 5, 1992Date of Patent: January 10, 1995Assignee: Konica CorporationInventors: Osamu Ishige, Eisaku Katoh, Hiroko Fujiwara, Shigeto Hirabayashi, Shuichi Sugita
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Patent number: 5370980Abstract: Disclosed is a silver halide photographic light-sensitive material comprising a support having thereon a hydrophilic colloidal layer comprising at least one silver salt of a compound having at least one acid group in the molecule, and the compound is represented by Formula I, Formula II or Formula III: ##STR1## wherein R.sup.1 and R.sup.2 independently represent a hydrogen atom or a group selected from the group consisting of an alkyl group, an alkenyl group, an aryl group and a heterocyclic residue; L.sub.1, L.sub.2, L.sub.3 and L.sub.4 independently represent a methine group; n.sub.1 is an integer of 0 to 3; n.sub.2 is an integer of 0, 1 or 2 and R.sup.3 represents an alkyl group or an alkenyl group. Q.sub.1 represents a non-metal atom group necessary to complete a 5-membered or 6-membered heterocyclic ring; ##STR2## wherein R.sup.4 and R.sup.Type: GrantFiled: October 21, 1993Date of Patent: December 6, 1994Assignee: Konica CorporationInventors: Taketoshi Yamada, Yasushi Usagawa, Akira Onishi, Yoshiko Ogawa, Shigeto Hirabayashi
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Patent number: 5364753Abstract: There is provided a silver halide color photographic light-sensitive material improved in sensitivity, color reproduction and image lasting quality.Type: GrantFiled: September 9, 1992Date of Patent: November 15, 1994Assignee: Konica CorporationInventors: Katsumasa Yamazaki, Shuichi Sugita, Shigeto Hirabayashi
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Patent number: 5324625Abstract: A silver halide color photographic light-sensitive material is disclosed. The light-sensitive material comprises a support having thereon a blue-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer and a red-sensitive silver halide emulsion layer, and at least one of the silver halide emulsion layers contains a silver salt of dye. The light-sensitive material has a raised sharpness, lowered fog and improved storage stability.Type: GrantFiled: July 7, 1992Date of Patent: June 28, 1994Assignee: Konica CorporationInventors: Shigeto Hirabayashi, Yasushi Usagawa, Yasuhiko Kawashima, Nobuaki Kagawa
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Patent number: 5290669Abstract: A silver halide color photographic light-sensitive material having photographic component layers on a support and at least one layer of which contains a silver salt of dye, is disclosed. The material has properties of high sharpness, high speed, less fogging and excellent raw stock stability.Type: GrantFiled: June 29, 1992Date of Patent: March 1, 1994Assignee: Konica CorporationInventors: Shigeto Hirabayashi, Yasushi Usagawa, Nobuaki Kagawa, Yasuhiko Kawashima
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Patent number: 5284742Abstract: A silver halide color photographic light-sensitive material is disclosed, which gives a color image excellent in the light-fastness and color reproducibility. The light-sensitive material comprises a support and a silver halide emulsion layer, and the emulsion layer contains a yellow dye-forming coupler represented by Formula Y-I and a compound represented by Formula I: ##STR1## wherein R.sup.1 is an alkyl group or a cycloalkyl group; R.sup.2 is an alkyl group, cycloalkyl group, an acyl group or an aryl group; R.sup.3 is a substituent; n is 0 or 1; X.sup.1 is a substituent capable of splitting off upon coupling reaction with the oxidation product of a color developing agent; and Y.sup.1 is an organic group, ##STR2## wherein R.sub.A and R.sub.B are independently an alkyl group, a cycloalkyl group or an alkenyl group; and R.sub.C and R.sub.D are independently a hydrogen atom, an alkyl group, a cycloalkyl group or an alkenyl group.Type: GrantFiled: June 19, 1992Date of Patent: February 8, 1994Assignee: Konica CorporationInventors: Katsumasa Yamazaki, Shigeto Hirabayashi
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Patent number: 5275926Abstract: There is provided a silver halide color photographic light-sensitive material which is improved in sensitivity, fog and resistance to formalin, and capable of providing photoprins of the same hue irrespective of the type of a printer employed.Type: GrantFiled: September 11, 1992Date of Patent: January 4, 1994Assignee: Konica CorporationInventors: Shigeto Hirabayashi, Shuichi Sugita, Katsumasa Yamazaki
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Patent number: 5270156Abstract: Disclosed is a silver halide color photographic light-sensitive material comprising a support having thereon a blue-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer and a red-sensitive silver halide emulsion layer, wherein at least one of green-sensitive silver halide emulsion layers contains at least one of magenta couplers represented by Formula M-I and at least one of compounds capable of releasing a development inhibitor or a precursor of a development inhibitor, upon reaction with oxidized products of a development agent, represented by Formula D-I; ##STR1## wherein Z represents a group consisting of a non-metal atoms necessary to form a nitrogen containing heterocyclic ring, provided, the ring formed by the Z may have a substituent; X represents a hydrogen atom or a group releasable upon reaction with an oxidized product of a color developing agents; and R represents a hydrogen atom or a substituent, ##STR2## wherein R.sub.1 represents an alkyl group, R.sub.Type: GrantFiled: August 28, 1992Date of Patent: December 14, 1993Assignee: Konica CorporationInventors: Shigeto Hirabayashi, Shuichi Sugita, Katsumasa Yamazaki
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Patent number: 5252446Abstract: There is provided a silver halide color photographic light-sensitive material whose green-sensitive and red-sensitive layers are improved in sensitivity and which involves little variation among printers.Type: GrantFiled: September 9, 1992Date of Patent: October 12, 1993Assignee: Konica CorporationInventors: Shigeto Hirabayashi, Shuichi Sugita, Katsumasa Yamazaki
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Patent number: 5248586Abstract: The improved silver halide color photographic material having as photographic constituent layers a blue-sensitive, a green-sensitive and a red-sensitive silver halide emulsion layer, as well as at least one non-light-sensitive hydrophilic colloidal layer on a support is characterized in that at least one of said photographic constituent layers contains at least one of the compounds represented by the following formula: ##STR1## (where R.sub.1 is a hydrogen atom or a monovaluent substituent; and R.sub.2 is a group having a Hammett's value .sigma..sub.p of at least 0.2). This color photographic material is satisfactorily protected against deterioration in photographic performance such as reduced color or gamma, color contamination or increased fog even if it is exposed to formaldehyde and other deleterious gases for a long time of storage before it is subjected to color development and subsequent photographic processing.Type: GrantFiled: September 30, 1992Date of Patent: September 28, 1993Assignee: Konica CorporationInventors: Yoko Nagaoka, Shigeto Hirabayashi
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Patent number: H1429Abstract: The present invention offers a silver halide photographic light-sensitive material which is excellent in dye image storage stability, which undergoes little change in the photographic performance thereof between initiation and completion of continuous processing, which has excellent color reproducibility and sufficient color developability. The present invention comprises a silver halide photographic light-sensitive material having at least one silver halide emulsion layer containing a dye-forming coupler on the support, wherein said silver halide emulsion layer contains at least one compound having an ester group and an oxidation potential of not more than 1800 mV.Type: GrantFiled: June 19, 1992Date of Patent: April 4, 1995Assignee: Konica CorporationInventors: Motoi Nishimura, Hirokazu Sato, Katsumasa Yamazaki, Shigeto Hirabayashi