Patents by Inventor Shigeru Ohno
Shigeru Ohno 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: 5238799Abstract: Disclosed is a silver halide photographic material having a hydrophilic colloid layer which contains a dispersion of fine solid grains of at least one dye of formula (I): ##STR1## where R.sub.1 and R.sub.2 each represents an alkyl group, an aryl group, a cyano group or a group of COOR.sub.3, COR.sub.3, CONR.sub.4 R.sub.5, NR.sub.4 R.sub.5, NR.sub.4 COR.sub.3, NR.sub.4 CONR.sub.4 R.sub.5, OR.sub.3, SR.sub.3, SOR.sub.3 or SO.sub.2 R.sub.3 ; R.sub.3 being an alkyl group or an aryl group, and R.sub.4 and R.sub.5 each being a hydrogen atom, an alkyl group or an aryl group, and R.sub.3 and R.sub.4 or R.sub.4 and R.sub.5 being optionally bonded to each other to form a 5-membered or 6-membered ring; L.sub.1, L.sub.2 and L.sub.3 each represents a methine group; and n represents 0 or 1; provided that R.sub.1, R.sub.2, L.sub.1, L.sub.2 and L.sub.3 must not have an ionizable proton-having group or a salt thereof.Type: GrantFiled: September 17, 1992Date of Patent: August 24, 1993Assignee: Fuji Photo Film Co., Ltd.Inventors: Takashi Usami, Shigeru Ohno, Yoko Idogaki
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Patent number: 5230993Abstract: A photographic light-sensitive material for medical use or nondestructive testing use is described, comprising (1) a support having thereon at least one light-sensitive silver halide emulsion layer, and (2) a polymer located on the same side of the support as an emulsion layer and capable of providing a cation site in a fixing solution.Type: GrantFiled: April 24, 1990Date of Patent: July 27, 1993Assignee: Fuji Photo Film Co., Ltd.Inventors: Sumito Yamada, Ichizo Toya, Tomokazu Yasuda, Shigeru Ohno
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Patent number: 5223382Abstract: A silver halide photographic material containing a dye that can be quickly decolored during development processing and can provide the light-sensitive material with excellent sharpness and less residual color. The light-sensitive material is characterized by having a hydrophilic colloid layer containing a dye represented by formula (I): ##STR1## wherein Z represents a group of non-metallic atoms necessary to form a 5 or 6-membered nitrogen-containing heterocyclic ring; R.sub.1, R.sub.2, .sub.3, R.sub.4 and R.sub.5 each represent a hydrogen atom or a monovalent group, and R.sub.3 and R.sub.4 and/or R.sub.4 and R.sub.5 may be combined to form a 5 or 6-membered ring; R.sub.6 represents an alkyl group, an alkenyl group or an aryl group; L.sub.1, L.sub.2, L.sub.3 and L.sub.4 each represent a methine group; X.sup.- represents an anion; m represents 1 or 2; n represents 0 or 1; and p represents 0, 1/2 or 1, provided that when the dye forms an intermolecular salt, p is 0.Type: GrantFiled: December 1, 1992Date of Patent: June 29, 1993Assignee: Fuji Photo Film Co., Ltd.Inventor: Shigeru Ohno
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Patent number: 5206431Abstract: A process for producing methacrylic acid, which comprisesfilling a plurality of catalysts of different activities into a plurality of reaction zones which have been formed in each of the reaction tubes of a fixed bed multi-tubular reactor by dividing said reaction tube into two or more portions in the direction of tubular axis, so that the activity of catalyst is higher as the reaction zone is closer to the outlet of the reaction tube, andintroducing into the reaction zones containing the catalysts at least one compound selected from methacrolein, isobutyl aldehyde and isobutyric acid to oxidize the at least one compound with molecular oxygen or a molecular oxygen-containing gas.Type: GrantFiled: August 14, 1992Date of Patent: April 27, 1993Assignee: Nippon Shokubai Kagaku Kogyo Co., Ltd.Inventors: Hideto Hashiba, Shigeru Ohno, Ikuo Kurimoto, Yukio Aoki
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Patent number: 5178904Abstract: A process for forming a deposited film on a substrate in the absence of a plasma is conducted by generating in an activation space an activated species capable of chemically reacting with a compound for film formation and introducing into a film-forming space having the substrate, the activated species and the compound for film formation. The compound for film formation has the general formula R.sub.n M.sub.m wherein R is a hydrocarbon radical, M is an element selected from one of Groups II-IV, n is an integer equal to the valence of M and m is a positive integer equal to the valence of R. The film-forming space is remote from the activation space. The activated species initiates a chemical reaction with the compound for film formation sufficient to generate chemical species of said film-forming compound capable of directly forming the deposited film.Type: GrantFiled: April 10, 1990Date of Patent: January 12, 1993Assignee: Canon Kabushiki KaishaInventors: Shunichi Ishihara, Shigeru Ohno, Masahiro Kanai, Shunri Oda, Isamu Shimizu
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Patent number: 5159349Abstract: A recording apparatus for recording an image sensed by a photosensor comprises an inlet for accepting a liquid to be delivered to an outlet orifice through a liquid flow path. Liquid is supplied to the inlet for flow through the liquid flow path to a heating element, which heats liquid in the liquid flow path in response to signals received by the photosensor. Heating is sufficient to cause a change of state of the liquid (that is, to generate a bubble) and produce a force acting on the liquid which overcomes the surface tension of liquid at the orifice and thereby projects a droplet of liquid from the orifice.Type: GrantFiled: October 3, 1991Date of Patent: October 27, 1992Assignee: Canon Kabushiki KaishaInventors: Ichiro Endo, Yasushi Sato, Seiji Saito, Takashi Nakagiri, Shigeru Ohno
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Patent number: 5147770Abstract: A silver halide color photographic material is disclosed. The photographic material comprises a support having provided thereon at least one silver halide emulsion layer wherein silver halide grains comprise monodisperse silver chlorobromide containing at least 2 mol % of silver chloride and having an area ratio of crystal face of Mirror indeces (100) satisfying the relationship:5.0.ltoreq.K.ltoreq..infin.wherein K represents the ratio of the intensity of diffracted rays attributable to (200) face to that of diffracted rays attributable to (222) face determined by X-ray diffraction analytical method, represented by: ##EQU1## and wherein said silver halide color photographic material contains at least one dye represented by the formula (II): ##STR1## wherein n, R.sup.1, R.sup.2, R.sup.3, R.sup.4 and L are as defined above.Type: GrantFiled: December 30, 1991Date of Patent: September 15, 1992Assignee: Fuji Photo Film Co., Ltd.Inventors: Kokichi Waki, Shigeru Ohno
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Patent number: 5124242Abstract: A silver halide photographic material comprising a support having on at least one side thereof an undercoat polymer layer, a dye layer comprising hydrophilic colloid and a dye capable of being decolorized during development, and at least one silver halide emulsion layer in that order from the side of the support, wherein hydrophilic colloid in the dye layer is present at a coating weight of not more than about 0.5 g/m.sup.2 and the dye layer is dried at a temperature in the range of from about 80.degree. to about 160.degree. C.Type: GrantFiled: January 16, 1991Date of Patent: June 23, 1992Assignee: Fuji Photo Film Co., Ltd.Inventors: Yasushi Hattori, Koichi Suematsu, Shigeru Ohno
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Patent number: 5122814Abstract: Liquid droplets are formed by instantaneous state change by thermal energy of a liquid filled in a thermal chamber, said droplets being deposited onto a recording member to achieve recording.Type: GrantFiled: September 7, 1990Date of Patent: June 16, 1992Assignee: Canon Kabushiki KaishaInventors: Ichiro Endo, Yasushi Sato, Seiji Saito, Takashi Nakagiri, Shigeru Ohno
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Patent number: 5106990Abstract: The present invention relates to a dye represented by formula (I): ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6, which may be the same or different, each represents a C.sub.1 -C.sub.5 alkyl group or a C.sub.1 -C.sub.5 alkyl group having a substituent selected from the group consisting of a sulfonic group, carboxyl group and hydroxyl group, and Z.sup.1 and Z.sup.2 each represents a group of non-metallic atoms necessary for the formation of a benzo-condensed of naphtho-condensed ring, or a benzo-condensed or naphtho-condensed ring having a substituent selected from the group consisting of a sulfonic group, a carboxyl group, an hydroxyl group, a halogen atom, a cyano group, an amino group and a C.sub.1 -C.sub.5 alkyl group connected to the ring directly or through a divalent connection group, with a proviso that R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, Z.sup.1 and Z.sup.Type: GrantFiled: March 28, 1989Date of Patent: April 21, 1992Assignee: Fuji Photo Film Co., Ltd.Inventors: Shigeru Ohno, Yuji Mihara, Keiichi Adachi
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Patent number: 5077184Abstract: A silver halide photographic material comprising a support provided with an undercoat layer and having thereon at least one silver halide emulsion layer and at least one dye-containing hydrophilic colloid layer between the emulsion layer and the undercoat layer, wherein the dye contained in the dye-containing hydrophilic colloid layer absorbs light in the light-sensitive region of the silver halide emulsion layer and is decolorized during the course of development, the dye-containing hydrophilic colloid layer has a swelling ratio of not higher than 180%; the coating weight of the hydrophilic colloid of the dye-containing hydrophilic colloid layer is not more than 0.5 g/m.sup.2 ; the undercoat layer comprises a hydrophobic polymer, and at least on hydrophilic colloid layer is provided between the dye-containing hydrophilic colloid layer and the undercoat layer.Type: GrantFiled: January 16, 1991Date of Patent: December 31, 1991Assignee: Fuji Photo Film Co., Ltd.Inventors: Yasushi Hattori, Koichi Suematsu, Shigeru Ohno
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Patent number: 5073465Abstract: An novel electrophotographic photoreceptor is provided comprising on an electrically conductive support a layer containing a charge-transporting compound and a charge-generating compound or a charge-transporting compound-containing layer and a charge-generating compound-containing layer, wherein said charge-generating compound is a trisazo compound represented by the general formula (1): ##STR1## wherein Ar.sup.1, Ar.sup.2, Ar.sup.3, Ar.sup.4, Ar.sup.5 and Ar.sup.6 each represents an arylene group, divalent condensed polycyclic aromatic group or divalent group derived from a monocyclic or condensed polycyclic heterocyclic aromatic group, each of which may have one or more substituents; C.sub.p respresents a coupler residual group; and n represents 1 or 2.Type: GrantFiled: May 18, 1990Date of Patent: December 17, 1991Assignee: Fuji Photo Film Co., Ltd.Inventors: Naonori Makino, Satoshi Hoshi, Shigeru Ohno, Katsuji Kitatani
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Patent number: 5071729Abstract: A silver halide photographic material comprising a support having provided thereon at least one silver halide emulsion layer, wherein the silver halide photographic material contains a compound having discoloration inhibitory activity represented by formula (I):PWR--Time).sub.t MCAP (I)wherein PWR represents a group capable of releasing (Time).sub.t -MCAP upon being reduced; Time represents a group which is released from PWR in the form of (Time).sub.t -MCAP and then releases MCAP through a subsequent reaction; t represents 0 or 1; and MCAP represents a group having discoloration inhibitory activity.Type: GrantFiled: April 29, 1988Date of Patent: December 10, 1991Assignee: Fuji Photo Film Co., Ltd.Inventors: Keizo Koya, Shigeru Ohno, Yoshisada Nakamura
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Patent number: 5035986Abstract: A silver halide color photographic material comprising photographic constituent layers containing at least one light-sensitive silver halide emulsion layer and at least one light-insensitive layer on a reflective support, wherein at least one of the photographic constituent layers comprises at least one dye represented by formula (I), at least one of the light-sensitive silver halide emulsion layers comprises silver halide grains substantially comprising silver chloride and the reflective support comprises 3.0 g/m.sup.2 or more of titanium oxide: ##STR1## wherein R.sub.1 and R.sub.2 each represents an alkyl group, an aryl group, a cyano group, --COOR.sub.5, --CONR.sub.5 R.sub.6, --COR.sub.7, --SO.sub.2 R.sub.7, --SOR.sub.7, --SO.sub.2 NR.sub.5 R.sub.6, --OR.sub.5, --NR.sub.5 R.sub.6, --NR.sub.6 COR.sub.7, --NR.sub.5 CONR.sub.5 R.sub.6 or --NR.sub.6 SO.sub.2 R.sub.7 in which R.sub.5 and R.sub.6 each represents a hydrogen atom, an alkyl group or an aryl group, R.sub.Type: GrantFiled: January 30, 1989Date of Patent: July 30, 1991Assignee: Fuji Photo Film Co., Ltd.Inventors: Nobuo Sakai, Shigeru Ohno
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Patent number: 5035985Abstract: A method for processing a silver halide photographic element comprising carrying out developement processing, including a washing step, of an imagewise exposed silver halide photographic element, wherein the washing step is carried out at 45.degree. C. or less for 90 sec. or less, and wherein the silver halide color photographic element comprises a support having provided thereon at least one silver halide emulsion layer, wherein the silver halide photographic element contains in a hydrophilic colloid layer, from 2 mg/m.sup.2 to 40 mg/n.sup.2 of at least one dye represented by the following general formula (I): ##STR1## wherein R.sub.1 and R.sub.2, which can be the same or different, can each represents --COOR.sub.5, or ##STR2## R.sub.3 and R.sub.4, which can be the same or different, each represents a hydrogen atom or an alkyl group, R.sub.5 and R.sub.Type: GrantFiled: June 7, 1990Date of Patent: July 30, 1991Assignee: Fuji Photo Film Co., Ltd.Inventors: Keiichi Adachi, Shigeru Ohno, Kokichi Waki
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Patent number: 5028633Abstract: A process for preparing a compression molding excipient comprises dispersing cellulose powder and hydroxypropyl starch powder in water or aqueous solutions of starch or hydroxypropyl starch and spray drying the dispersion. The excipients are useful for tablet moldings having optimum hardness and disintegration properties.Type: GrantFiled: February 21, 1985Date of Patent: July 2, 1991Assignee: Freund Industrial Co., Ltd.Inventors: Shigeru Ohno, Masayuki Ikeda
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Patent number: 5019474Abstract: A novel electrophotographic photoreceptor is provided comprising on an electrically conductive support a layer containing a charge-transporting compound and a charge-generating compound or a charge-transporting compound-containing layer and a charge-generating compound-containing layer, characterized in that as said electric charge-generating compound there is contained a tetrakisazo compound represented by the general formula (1): ##STR1## wherein Ar.sup.1, Ar.sup.2, Ar.sup.3, Ar.sup.4, Ar.sup.5, Ar.sup.6 and Ar.sup.7 each represents an arylene group, divalent condensed polycyclic aromatic group or divalent heterocyclic aromatic group; and Cp represents a coupler residue.Type: GrantFiled: April 4, 1990Date of Patent: May 28, 1991Assignee: Fuji Photo Film Co., Ltd.Inventors: Naonori Makino, Shigeru Ohno, Satoshi Hoshi, Katsuji Kitatani
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Patent number: 5013636Abstract: A silver halide color photographic material comprising a support having in a layer thereon at least a dye represented by general formula (I) ##STR1## wherein R.sub.1 and R.sub.4, which may be the same or different, each represents a hydrogen atom, an aliphatic group, an aromatic group, a heterocyclic group, -NR.sub.7 R.sub.8, --NR.sub.7 CONR.sub.7 R.sub.8, --NR.sub.8 COR.sub.9 or --NR.sub.8 SO.sub.2 R.sub.9 ;R.sub.2 and R.sub.5, which may be the same or different, each represents a hydrogen atom, an aliphatic group, an aromatic group, a heterocyclic group, a cyano group, a sulfonic acid group, --NR.sub.7 R.sub.8, --NR.sub.8 COR.sub.9, --NR.sub.8 SO.sub.2 R.sub.9, --NR.sub.7 CONR.sub.7 R.sub.8, --COOR.sub.7, --CONR.sub.7 R.sub.8, --COR.sub.9, --SO.sub.2 R.sub.9 or --SO.sub.2 NR.sub.7 R.sub.8 ;R.sub.3 and R.sub.6, which may be the same or different, each represents a hydrogen atom, an aliphatic group, an aromatic group, a heterocyclic group, --OR.sub.7, --COOR.sub.7, --COR.sub.9, --CONR.sub.7 R.sub.8, --NR.sub.Type: GrantFiled: March 10, 1989Date of Patent: May 7, 1991Assignee: Fuji Photo Film Co., Ltd.Inventors: Shigeru Ohno, Yoshihiro Jimbo, Keiichi Adachi, Shigeru Kuwashima
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Patent number: 5008177Abstract: Disclosed is a gelatino-silver halide photographic material which contains a dye of the following formula (I), described in detail herein and at least one hardener. ##STR1## The dye is decolored by photographic processing and does not exert any adverse influence on the photographic characteristics, especially the spectral sensitizability, of the photographic material. The material exhibits excellent storage stability and has a negligible moisture-dependency in exposure.Type: GrantFiled: December 9, 1988Date of Patent: April 16, 1991Assignee: Fuji Photo Film Co., Ltd.Inventors: Kensuke Goda, Shigeru Ohno
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Patent number: 5001043Abstract: A silver halide photographic material containing at least one of the dyes represented by the general formula (I) and containing a coupler represented by the general formula (II) in a blue-sensitive layer: ##STR1## wherein R.sub.1 and R.sub.2 each represents --COOR.sub.5 or ##STR2## R.sub.3 and R.sub.4 each represents a hydrogen atom or an alkyl group, R.sub.5 and R.sub.6 each represents a hydrogen atom, an alkyl group or an aryl group, R.sub.5 and R.sub.6 may be bonded to form a 5- or 6-membered ring, Q.sub.1 and Q.sub.2 each represents an aryl group, X.sub.1 and X.sub.2 each represents a single bond or bivalent linking group, Y.sub.1 and Y.sub.2 each represents a sulfo group or a carboxyl group, L.sub.1, L.sub.2 and L.sub.3 each represents a methine group, m.sub.1 and m.sub.2 each represents 1 or 2, n represents 0, 1 or 2, p.sub.1 and p.sub.2 each represents 0, 1, 2, 3 or 4 and s.sub.1 and s.sub.2 each represents 1 or 2; ##STR3## wherein R.sub.Type: GrantFiled: April 20, 1988Date of Patent: March 19, 1991Assignee: Fuji Photo Film Co., Ltd.Inventors: Kiyoshi Kawai, Shigeru Ohno