Patents by Inventor Akira Ogawa
Akira Ogawa 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: 4146893Abstract: A system for compensating for cross polarization coupling in a dual-polarization satellite communication system, in which two polarized waves of the same frequency and orthogonal to each other are alternately transmitted as a pilot wave from an earth station at a predetermined period. The same polarized wave components of the two signals received by a communication satellite are sent back to the earth station, so that the sent back signal is received by the earth station. An amplitude ratio and a phase difference between the same polarized wave components of the two signals of the received pilot signal are detected. A communication signal wave to be transmitted from the earth station is formed as an elliptically polarized wave by the use of the detected information, thereby compensating for cross polarization coupling of the communication signal wave caused during propagation between the earth station and the communication satellite.Type: GrantFiled: November 15, 1977Date of Patent: March 27, 1979Assignee: Kokusai Denshin Denwa Kabushiki KaishaInventors: Kazunori Inagaki, Yasuo Hirata, Akira Ogawa
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Patent number: 4137857Abstract: A belt looper apparatus comprises a delivery means, an accepting means, a cutter, a folding means, a sewing machine, a movable guide, a garment-pressing means and a slackening means, wherein said movable guide and said garment presser are adapted to move in a direction equivalent to that of the delivery of the material.Type: GrantFiled: August 26, 1977Date of Patent: February 6, 1979Assignee: Miyachi Sewing Machine Co., Ltd.Inventors: Nobuji Miyachi, Keniti Miyake, Akira Ogawa
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Patent number: 4114544Abstract: Elongated piece of material being delivered sequentially to cut in a predetermined length and the cut piece is folded at its opposite ends. The folded piece is delivered to the sewing machine which is placed transversely and is sewn to the garment. One of the folded ends is followed by the other folded end in being sewn to the garment. The apparatus of the present invention carries out the above procedures full-automatically.Type: GrantFiled: April 11, 1977Date of Patent: September 19, 1978Assignee: Miyachi Sewing Machine Co., Ltd.Inventors: Nobuji Miyachi, Akira Ogawa, Keniti Miyake, Isao Onishi
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Patent number: 4094683Abstract: A direct positive silver halide light-sensitive material capable of forming direct positive images comprising a support having coated thereon at least one internal image type silver halide emulsion layer, wherein at least one hydrophilic colloid layer contains a heterocyclic quaternary salt compound represented by formula (I) in an amount necessary to provide the silver halide photographic emulsion with a fogging function. ##STR1## wherein Z is an atomic group necessary for completing a 5- or 6-membered heterocyclic nucleus, R.sub.1 is an aliphatic group, R.sub.2 is a hydrazonoalkyl group, X.crclbar. is an anion, and n is 1 or 2.Type: GrantFiled: June 28, 1976Date of Patent: June 13, 1978Assignee: Fuji Photo Film Co., Ltd.Inventors: Nobuyuki Tsujino, Akira Ogawa, Tadao Shishido, Keiichi Adachi
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Patent number: 4067738Abstract: A silver halide photographic light-sensitive element containing at least one dye represented by general formula (I) set forth below in at least one hydrophilic colloid layer of the silver halide photographic light-sensitive element: ##STR1## wherein X represents an amino group, a hydroxy group or an alkoxy group; m represents 0 or 1; Q represents an aryl group substituted with at least one of a sulfo group, a sulfoalkyl group or a carboxy group; R.sup.1 represents an aliphatic group; R.sup.2 and R.sup.3, which may be the same or different, each represents a hydrogen atom, an alkyl group, an alkoxycarbonyl group, an acyl group or a carboxy group; L.sup.1, L.sup.2, L.sup.3 and L.sub.4 each represents a methine group, an alkyl substituted methine group or a phenyl substituted methine group; and n represents 0 or 1.Type: GrantFiled: September 1, 1976Date of Patent: January 10, 1978Assignee: Fuji Photo Film Co., Ltd.Inventors: Masatoshi Sugiyama, Tadashi Ikeda, Akira Ogawa, Yasuharu Nakamura, Fujio Kakimi
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Patent number: 4057430Abstract: A silver halide photographic emulsion containing at least one sensitizing dye represented by the following general formula (I), ##STR1## in which Z represents an atomic group necessary for forming a benzoxazole nucleus or a naphthoxazole nucleus; R.sub.1 represents an aliphatic group; R.sub.2 represents an alkyl group, an allyl group or an aryl group; R.sub.3 represents an alkoxycarbonylalkyl group, an alkoxyalkyl group, an N-(N,N-dialkylaminoalkyl)carbamoylalkyl group, an N-(N,N,N-trialkylammoniumalkyl)carbamoylalkyl group or an N,N,N-trialkylammoniumalkyl group, with R.sub.2 being a phenyl group where R.sub.3 is an alkoxycarbonylalkyl group; X represents an acid anion; and n represents 0 or 1.Type: GrantFiled: February 9, 1976Date of Patent: November 8, 1977Assignee: Fuji Photo Film Co., Ltd.Inventors: Akira Sato, Akira Ogawa, Masanao Hinata, Haruo Takei
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Patent number: 4053318Abstract: A silver halide photographic emulsion containing at least one spectral sensitizing dye represented by formula (I) ##STR1## wherein Z is an atomic group necessary for completing a 5- or 6-membered heterocyclic ring, R.sub.1 is an aliphatic group, R.sub.2 is an aliphatic group having an alkylthio group or an aliphatic group having two alkoxy groups on the same carbon atom, R.sub.3 is an aryl group, an alkyl group or an alkenyl group, R.sub.4 is a hydrogen atom, an alkyl group or an aryl group, and m and n are 1 or 2.Type: GrantFiled: December 18, 1975Date of Patent: October 11, 1977Assignee: Fuji Photo Film Co., Ltd.Inventors: Akira Sato, Akira Ogawa, Masanao Hinata, Haruo Takei
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Space diversity system in PCM-TDMA telecommunication system using stationary communication satellite
Patent number: 4052670Abstract: A space diversity PCM-TDMA telecommunication system using a stationary communication satellite, in which fixed delay circuits are respectively inserted in the sending side and the receiving side of one route at a control equipment, while variable delay circuits are inserted in the sending side and the receiving side of the other route at the control equipment, so that electrical length of one route from the satellite to the control equipment may be the same as that of the other route from the satellite to the control equipment through the route including connection links between the two sites. Diversity switching can be performed with no duplication and lack of signals in accordance with the above construction.Type: GrantFiled: December 23, 1975Date of Patent: October 4, 1977Assignee: Kokusai Denshin Denwa Kabushiki KaishaInventors: Tatsuo Watanabe, Hideki Saito, Akira Ogawa, Masahisa Yamaguchi, deceased -
Patent number: 4047964Abstract: A supersensitized silver halide photographic emulsion which contains at least one dye of the formula: ##STR1## wherein Z.sup.1 represents the atoms necessary to complete a benzisoxazole ring; Q.sup.1 represents the atoms necessary to complete a 2-thiooxazolidine-2,4-dione ring, a rhodanine ring or a 2-thiohydantoin ring; and R.sup.1 represents an aliphatic group, in combination with at least one cyanine dye or merocyanine dye which contains no benzisoxazole ring.Type: GrantFiled: October 23, 1975Date of Patent: September 13, 1977Assignee: Fuji Photo Film Co., Ltd.Inventors: Masanao Hinata, Haruo Takei, Akira Sato, Akira Ogawa
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Patent number: 4040840Abstract: Silver halide photographic sensitive elements having at least one dye containing hydrophilic colloid layer, in which the hydrophilic colloid layer contains at least one merocyanine dye having an isoxazole nucleus, a pyrazoline-5-one nucleus and at least one acid group in the molecule wherein the 3-position of the isoxazole nucleus is linked through a methine chain to the 4-position of the pyrazoline-5-one nucleus and a basic polymer is included in at least one of the hydrophilic colloid layers.Type: GrantFiled: November 23, 1976Date of Patent: August 9, 1977Assignee: Fuji Photo Film Co., Ltd.Inventors: Masatoshi Sugiyama, Akira Ogawa
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Patent number: 4021251Abstract: Silver halide photographic emulsions which contain at least one sensitizing dye represented by the formula (I) ##STR1## wherein Z represents a group of atoms necessary to form a benzisoxazole nucleus; R.sub.1 represents an aliphatic group; R.sub.2 represents an aliphatic group or an aryl group; and R.sub.3 represents an aryl group or an alkenyl group.Type: GrantFiled: April 16, 1975Date of Patent: May 3, 1977Assignee: Fuji Photo Film Co., Ltd.Inventors: Akira Sato, Akira Ogawa, Masanao Hinata, Haruo Takei
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Patent number: 4017684Abstract: A system for determining burst sending timing in a time division multiple access communication system using a communication satellite, in which burst signals transmitted from a plurality of stations are arranged on the communication satellite in one frame at predetermined intervals. On the transmitting side connected to the communication satellite through a radio wave path, a first signal composed of a first signal state over one frame length defined by the sending frame timing is sent, and then second, third, fourth, . . . signals each composed of the first signal state and a second state different from the first signal state are sent. In this case, the position or length of the first signal state in one frame is altered by a certain amount.Type: GrantFiled: July 3, 1975Date of Patent: April 12, 1977Assignee: Kokusai Denshin Denwa Kabushiki KaishaInventors: Hiroshi Kurihara, Akira Ogawa, Yasuo Hirata
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Patent number: 4014702Abstract: A silver halide photographic emulsion containing a spectrally sensitizing amount of a sensitizing dye represented by the general formula (I) ##STR1## and a sensitizing dye represented by the formula (II) ##STR2## wherein Z.sub.1 and Z.sub.2 each is an atomic group necessary to complete a benzoxazole ring or a naphthoxazole ring; R.sub.1 is an alkyl group or an allyl group; R.sub. 2 is an alkyl group or an allyl group; R.sub.3 is an unsubstituted lower alkyl group, a hydroxyalkyl group or a carboxyalkyl group; R.sub.4 is same as R.sub.1 ; R.sub.5 is an alkyl group, an allyl group or a phenyl group; R.sub.6 is an alkoxycarbonylalkyl group, a hydroxyalkoxyalkyl group, an acyloxyalkoxyalkyl group, an N-(N,N-dialkylaminoalkyl)carbamoylalkyl group, an N-(N,N,N-trialkylammonium)carbamoylalkyl group or an N,N,N-trialkylammoniumalkyl group; X.sup.- is an acid anion; and n is 0 or 1.Type: GrantFiled: July 21, 1975Date of Patent: March 29, 1977Assignee: Fuji Photo Film Co., Ltd.Inventors: Masanao Hinata, Masanaga Ohki, Hartuo Takei, Akira Sato, Akira Ogawa
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Patent number: 3994733Abstract: A silver halide photographic emulsion containing the combination of (i) at least one cyanine dye wherein two basic 5-membered and/or 6-membered nitrogen-containing heterocyclic nuclei are linked by methine groups having an odd number of carbon atoms not exceeding 7 and the substituents on the nitrogen atoms in the heterocyclic nuclei are aliphatic groups or aromatic groups with at least one of the substituents on the nitrogen atom being an alkyl group having a sulfo group or a carboxyl group, and (ii) at least one substantially colorless nitrogen-containing heterocyclic organic base selected from the group consisting of a benzothiazole, a benzothiazolone, a naphthothiazole, a naphthothiazolone, and a quinolone in a quantity sufficient to supersensitize.Type: GrantFiled: December 10, 1974Date of Patent: November 30, 1976Assignee: Fuji Photo Film Co., Ltd.Inventors: Masanao Hinata, Masanaga Ohki, Reiichi Ohi, Akira Ogawa, Akira Sato
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Patent number: 3982950Abstract: A silver halide photographic emulsion for use in flash exposure, which contains a sensitizing amount of a defined simple merocyanine dye.Type: GrantFiled: February 4, 1975Date of Patent: September 28, 1976Assignee: Fuji Photo Film Co., Ltd.Inventors: Keisuke Shiba, Haruo Takei, Akira Sato, Akira Ogawa
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Patent number: 3973969Abstract: Silver halide photographic emulsions are supersensitized by a combination of at least one sensitizing dye represent by following general formula (I): ##EQU1## And at least one sensitizing dye represented by following general formula (II): ##SPC1##Specific moieties given in the above formulae are identified in the specification.Type: GrantFiled: May 2, 1975Date of Patent: August 10, 1976Assignee: Fuji Photo Film Co., Ltd.Inventors: Keisuke Shiba, Masanao Hinata, Hirotetu Kato, Akiro Sato, Akira Ogawa
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Fogged, direct-positive silver halide emulsion containing carbocyanine dye having indolenine nucleus
Patent number: 3970461Abstract: A direct positive silver halide photographic emulsion containing a dye represented by the following general formula: ##SPC1##Wherein R and R.sub.1 are selected from the first group consisting of alkyl, allyl, substituted alkyl, aryl, and substituted aryl groups, at least one of the R and R.sub.1 being an alkyl group substituted with a carboxyl or sulfo radical; R.sub.2 and R.sub.3 are selected from the second group consisting of alkyl, aralkyl and allyl groups; L.sub.1 is selected from the third group consisting of methine and an atomic group capable of combining with R.sub.1, R.sub.2 or R.sub.3 to form a ring; L.sub.2 is methine; L.sub.3 is selected from the fourth group consisting of methine and an atomic group capable of forming a ring with R.sub.1 or a 3,3-substituent of an indolenine ring at the site near to L.sub.3, L.sub.3, such that a ring may be formed by L.sub.1 and L.sub.Type: GrantFiled: July 6, 1973Date of Patent: July 20, 1976Assignee: Fuji Photo Film Co., Ltd.Inventors: Keisuke Shiba, Masanao Hinata, Akira Sato, Akira Ogawa, Hirotetu Kato -
Patent number: 3966477Abstract: A silver halide photographic emulsion containing, in combination, supersensitizing amounts of at last two carbocyanine sensitizing dyes as hereinafter defined.Type: GrantFiled: December 6, 1974Date of Patent: June 29, 1976Assignee: Fuji Photo Film Co., Ltd.Inventors: Masanao Hinata, Haruo Takei, Tadashi Ikeda, Akira Ogawa, Akira Sato, Atsuo Iwamoto
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Patent number: 3964142Abstract: An apparatus for cutting an insulated electric wire into lengths and crimping a terminal to the end of the resulting wire lengths, comprising means for intermittently supplying said insulated electric wire through a predetermined distance, a cutter blade assembly operable in timed relation with the intermittent wire supply and including a cutter blade for cutting the wire and a cutter blade spaced forwardly therefrom for cutting only the insulator of the wire, wire length transfer means laterally extending and mounted pivotally at a position spaced from the assembly, which transfer means comprises a circulating conveyer having a plurality of grippers disposed at intervals and being moved intermittently in timed relation with the intermittent wire supply for conveying the wire lengths away from the supply means, and driver means for alternately driving the transfer means to a normal position and a forwardly shifted position in timed relation with the intermittent wire supply, the abovementioned timed relationType: GrantFiled: February 14, 1975Date of Patent: June 22, 1976Assignee: Shin Meiwa Industry Co., Ltd.Inventors: Akira Ogawa, Masashi Sakao
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Patent number: 3953216Abstract: A spectral-sensitized silver halide photographic emulsion containing in supersensitizing amounts the combination of1. at least one sensitizing dye represented by the formula ##EQU1## WHEREIN Z.sub.1 and Z.sub.2 are the atomic groups necessary for forming a benzoxazole ring or a napthoxazole ring, in which a benzene nucleus of the ring may be substituted; R.sub.1 and R.sub.2 are aliphatic groups and at least one of R.sub.1 or R.sub.2 is a carboxyalkyl group or a sulfoalkyl group; R.sub.3 is a hydrogen atom or an alkyl group; X is an acid anion group; and m is 1 or 2 and m is 1 when the dye forms an intramolecular salt having a betaine like-structure,2. at least one sensitizing dye represented by the formula (II) ##EQU2## wherein Z.sub.3 is an atomic group necessary for forming a 5-membered or 6-membered heterocyclic ring which may be substituted by substituents other than R.sub.4 ; Z.sub.4 is an atomic group necessary for forming a 2-pyrazoline-5-one ring nucleus which may be substituted; R.sub.Type: GrantFiled: August 16, 1974Date of Patent: April 27, 1976Assignee: Fuji Photo Film Co., Ltd.Inventors: Masanao Hinata, Haruo Takei, Akira Sato, Akira Ogawa