Patents by Inventor Isao Nakayama
Isao Nakayama 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: 11968849Abstract: According to one embodiment, a radiation detector includes a detecting part, and a transmitting part. The detecting part is configured to output a signal. The signal corresponds to radiation incident on the detecting part. The transmitting part includes a first conductive layer, a second conductive layer, and an organic layer. The first conductive layer is electrically connected with the detecting part, and is configured to transmit the signal. The second conductive layer is separated from the first conductive layer. At least a portion of the organic layer is between the first conductive layer and the second conductive layer.Type: GrantFiled: August 30, 2021Date of Patent: April 23, 2024Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Kohei Nakayama, Isao Takasu, Atsushi Wada, Fumihiko Aiga, Yuko Nomura
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Patent number: 11948865Abstract: A film-shaped firing material (1) is provided, including first metal particles (10), second metal particles (20), and a binder component (30), in which the average particle diameter of the first metal particles (10) is 100 nm or less, and the maximum particle diameter thereof is 250 nm or less, the average particle diameter of the second metal particles (20) is in a range of 1000 to 7000 nm, the minimum particle diameter thereof is greater than 250 nm, and the maximum particle diameter thereof is 10000 nm or less, and the mass ratio of the first metal particles to the second metal particles is 0.1 or greater.Type: GrantFiled: February 8, 2019Date of Patent: April 2, 2024Assignee: LINTEC CORPORATIONInventors: Takeshi Mori, Isao Ichikawa, Hidekazu Nakayama
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Patent number: 11947057Abstract: According to one embodiment, a photodetector includes a first conductive layer, a second conductive layer, and an organic layer provided between the first conductive layer and the second conductive layer. The organic layer includes a first region and a second region. The second region is provided between the first region and the second conductive layer. The first region includes a first compound and a second compound. The first compound includes a first mother skeleton. The second region includes the first compound and a third compound. The third compound includes the first mother skeleton. The third compound is different from the first compound. The second region does not include the second compound, or a concentration of the second compound in the second region is lower than a concentration of the second compound in the first region.Type: GrantFiled: August 19, 2022Date of Patent: April 2, 2024Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Isao Takasu, Atsushi Wada, Yuko Nomura, Kohei Nakayama, Fumihiko Aiga
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Patent number: 11927706Abstract: According to one embodiment, a radiation detector includes a base body, a first radiation detection element, and a second radiation detection element. The base body includes a first surface. The first surface includes first and second partial regions. A first direction from the first partial region toward the second partial region is along the first surface. The first radiation detection element is fixable to the first partial region. The second radiation detection element includes a first detecting part fixable to the second partial region. The first detecting part includes first and second end portions. A second direction from the first end portion toward the second end portion crosses the first surface. The second end portion is between the first end portion and the second partial region in the second direction. The first radiation detection element does not overlap the first end portion in the first direction.Type: GrantFiled: February 25, 2021Date of Patent: March 12, 2024Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Isao Takasu, Kohei Nakayama, Atsushi Wada, Fumihiko Aiga, Yuko Nomura
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Publication number: 20210270680Abstract: A space temperature scanner capable of measuring a temperature distribution in a space without requiring troublesome device installation work or complex data processing is disclosed. The space temperature scanner (scanner 100) of the present invention includes a bar-shaped portable support member 110, attachment units 120 arranged along a straight line on the support member 110, and thermocouple units 130 that can be removably attached to the attachment units 120. The thermocouple units 130 can be selectively attached to some or all of the attachment units 120 when temperature measurement is to be performed.Type: ApplicationFiled: August 28, 2018Publication date: September 2, 2021Inventors: Takeshi YAJIMA, Akira HANAFUSA, Isao NAKAYAMA, Katsuhiko TANAKA
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Publication number: 20210025082Abstract: A method of manufacturing an acrylonitrile fiber bundle includes drawing a fiber bundle with pressurized steam under a pressurized steam atmosphere using a pressurized steam drawing device, wherein the fiber bundle includes a yarn spun from a spinning solution containing an acrylonitrile copolymer, the pressurized steam drawing device has at least two zones of a preheating zone provided on a fiber bundle introduction side and a heating/drawing zone provided on a fiber bundle extraction side, and a sealing zone has a sealing member and separates the two zones.Type: ApplicationFiled: March 12, 2019Publication date: January 28, 2021Inventors: Yusuke Takechi, Isao Nakayama, Takeya Ohashi
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Publication number: 20120126442Abstract: A process for producing polyacrylonitrile-base precursor fibers for production of carbon fibers, which comprises spinning a spinning dope containing 10 to 25 wt % of a polyacrylonitrile-base polymer having an intrinsic viscosity of 2.0 to 10.0 by extruding the spinning dope from a spinneret by a wet spinning or a dry wet spinning method, drying and heat-treating fibers obtained by the spinning, and then steam drawing the resulting fibers, wherein the linear extrusion rate of the polyacrylonitrile-base polymer from the spinneret is 2 to 15 m/min.Type: ApplicationFiled: January 31, 2012Publication date: May 24, 2012Applicant: Toray Industries, Inc.Inventors: Masafumi Ise, Isao Nakayama, Makoto Endo
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Patent number: 8137810Abstract: A process for producing polyacrylonitrile-base precursor fibers for production of carbon fibers, which comprises spinning a spinning dope containing 10 to 25 wt % of a polyacrylonitrile-base polymer having an intrinsic viscosity of 2.0 to 10.0 by extruding the spinning dope from a spinneret by a wet spinning or a dry wet spinning method, drying and heat-treating fibers obtained by the spinning, and then steam drawing the resulting fibers, wherein the linear extrusion rate of the polyacrylonitrile-base polymer from the spinneret is 2 to 15 m/min. Carbon fibers which are produced by stabilizing-carbonizing treatment of the polyacrylonitrile-base precursor fibers and which have a strand tensile modulus of 320 to 380 GPa and a conduction electron density of 3.0×1019 to 7.0×1019 spins/g as determined by electron spin resonance.Type: GrantFiled: December 6, 2006Date of Patent: March 20, 2012Assignee: Toray Industries, Inc.Inventors: Masafumi Ise, Isao Nakayama, Makoto Endo
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Publication number: 20100143713Abstract: A process for producing polyacrylonitrile-base precursor fibers for production of carbon fibers, which comprises spinning a spinning dope containing 10 to 25 wt % of a polyacrylonitrile-base polymer having an intrinsic viscosity of 2.0 to 10.0 by extruding the spinning dope from a spinneret by a wet spinning or a dry wet spinning method, drying and heat-treating fibers obtained by the spinning, and then steam drawing the resulting fibers, wherein the linear extrusion rate of the polyacrylonitrile-base polymer from the spinneret is 2 to 15 m/min. Carbon fibers which are produced by stabilizing-carbonizing treatment of the polyacrylonitrile-base precursor fibers and which have a strand tensile modulus of 320 to 380 GPa and a conduction electron density of 3.0×1019 to 7.0×1019 spins/g as determined by electron spin resonance.Type: ApplicationFiled: December 6, 2006Publication date: June 10, 2010Applicant: Toray Industries, A Corporation of JapanInventors: Masafumi Ise, Isao Nakayama, Makoto Endo
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Patent number: 5086241Abstract: A Costas loop carrier wave reproducing circuit includes a first differential amplifier circuit, a second differential amplifier circuit, a multiplying circuit, a first square circuit, a second circuit, and a double-balanced differential amplifier circuit. The first differential amplifier circuit obtains an inphase output from an inphase demodulated signal obtained by performing synchronous detection of a component inphase with a four-phase modulated wave. The second differential amplifier circuit obtains an orthogonal output from an orthogonal demodulated signal obtained by performing synchronous detection of an orthogonal component of the four-phase modulated wave. The multiplying circuit multiplies outputs from the first and second differential amplifier circuits. The first square circuit obtains a square output of an output from the first differential amplifier circuit. The second square circuit obtains a square output of an output from the second differential amplifier circuit.Type: GrantFiled: July 10, 1991Date of Patent: February 4, 1992Assignee: NEC CorporationInventor: Isao Nakayama
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Patent number: 4749704Abstract: Compounds of formula (I): ##STR1## (wherein R.sup.1 and R.sup.2 are hydroxy, alkoxy, aryloxy or acyloxy or R.sup.2 is hydrogen, R.sup.3 is hydrogen or alkyl and R.sup.4 and R.sup.5 are hydrogen or various organic substituents) have valuable antidepressant activity and may be used in the treatment of mental depression.Type: GrantFiled: March 6, 1986Date of Patent: June 7, 1988Assignees: Sankyo Company Limited, Ube Industries LimitedInventors: Nobuyoshi Iwata, Isao Nakayama, Kanichi Nakamura, Tomio Kimura, Takashi Kobayashi
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Patent number: 4450162Abstract: New 4-anilinopyrimidine derivatives of formula (I): ##STR1## (wherein: R.sup.1 and R.sup.2 are the same or different and each represents a C.sub.1 -C.sub.6 alkyl group or R.sup.1 and R.sup.2 together represent a C.sub.3 -C.sub.5 alkylene group;R.sup.3 represents a hydrogen atom or a C.sub.1 -C.sub.6 alkyl group;n is 0, 1 or 2; andR.sup.4 represents a C.sub.1 -C.sub.6 alkyl group, a C.sub.1 -C.sub.6 alkoxy group, a C.sub.1 -C.sub.6 haloalkyl group, a halogen atom, a nitro group, a C.sub.1 -C.sub.6 alkanesulphonyl group, a cyano group, a carboxy group or a C.sub.2 -C.sub.7 alkoxycarbonyl group and, when n is 2, the two groups represented by R.sup.4 may be the same or different or they may together represent a methylenedioxy group)and pharmaceutically acceptable acid addition salts thereof have been found to have strong antidepressant activity, with low toxicity and very few side-effects.Type: GrantFiled: June 2, 1982Date of Patent: May 22, 1984Assignees: Sankyo Company, Limited, Ube Industries LimitedInventors: Toshiharu Kamioka, Isao Nakayama, Takeo Honda, Takashi Kobayashi, Tokio Obata, Katsutoshi Fujii, Mikio Kojima, Yuji Akiyoshi
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Patent number: 3980272Abstract: A fire and smoke damper for installation in a duct which includes a plate rotatably mounted within the duct and having means enclosing the periphery of the plate and biased outwardly to engage the duct wall when the damper is in the closed position.Type: GrantFiled: January 15, 1975Date of Patent: September 14, 1976Assignee: Nittan Company, LimitedInventors: Takao Nakai, Isamu Shimonomura, Isao Nakayama, Yoshiyuki Yoshii