Patents by Inventor Koji Tajiri
Koji Tajiri 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: 8865020Abstract: Provided is an adsorbent having superior adsorption properties for use as a dehumidifying agent for desiccant air conditioning which exhibits high adsorption properties at mid and high humidity ranges, and for use as a gas adsorbent of carbon dioxide, ammonia, formaldehyde and the like. A precursor suspension having a Si/Al ratio of 0.70 to 1.0 is prepared, and the precursor suspension is subsequently heated at 110° C. or higher for 2 days to synthesize a complex of a layered low-crystalline clay mineral and an amorphous aluminum silicate. The obtained complex of the layered low-crystalline clay mineral and the amorphous aluminum silicate yields excellent water vapor adsorption performance of 45 wt % or more at a relative humidity of 60%, and therefore can be used as an adsorbent for desiccant air conditioning.Type: GrantFiled: December 26, 2008Date of Patent: October 21, 2014Assignee: National Institute of Advanced Industrial Science and TechnologyInventors: Masaya Suzuki, Katsuhiro Tsukimura, Sumiko Kawabata, Chieko Ikeda, Ryousuke Nakanishi, Koji Tajiri, Keiichi Inukai, Masaki Maeda
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Patent number: 8227377Abstract: Provided is an adsorbent adapted to adsorb carbon dioxide by increasing the pressure, and to carry out 10% or more adsorption and adsorption of the adsorbed carbon dioxide by lowering the pressure at atmospheric pressure or higher in a range of 100 to 900 kPa without vacuuming or the like. As a result of using amorphous aluminum silicate with a Si/Al ratio of 0.7 to 1.0 and having a peak in the vicinity of ?78 ppm and ?87 ppm in a 29Si solid NMR spectrum, adsorption and desorption of 10 wt % or more can be performed in a range of 100 to 900 kPa, and this can be used as a carbon dioxide adsorbent mainly in the pressure swing adsorption method.Type: GrantFiled: April 11, 2008Date of Patent: July 24, 2012Assignee: National Institute of Advanced Industrial Science and TechnologyInventors: Masaya Suzuki, Chieko Ikeda, Koji Tajiri, Keiichi Inukai, Masaki Maeda
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Publication number: 20100320418Abstract: Provided is an adsorbent having superior adsorption properties for use as a dehumidifying agent for desiccant air conditioning which exhibits high adsorption properties at mid and high humidity ranges, and for use as a gas adsorbent of carbon dioxide, ammonia, formaldehyde and the like. A precursor suspension having a Si/Al ratio of 0.70 to 1.0 is prepared, and the precursor suspension is subsequently heated at 110° C. or higher for 2 days to synthesize a complex of a layered low-crystalline clay mineral and an amorphous aluminum silicate. The obtained complex of the layered low-crystalline clay mineral and the amorphous aluminum silicate yields excellent water vapor adsorption performance of 45 wt % or more at a relative humidity of 60%, and therefore can be used as an adsorbent for desiccant air conditioning.Type: ApplicationFiled: December 26, 2008Publication date: December 23, 2010Applicant: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCEInventors: Masaya Suzuki, Katsuhiro Tsukimura, Sumiko Kawabata, Chieko Ikeda, Ryousuke Nakanishi, Koji Tajiri, Keiichi Inukai, Masaki Maeda
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Publication number: 20100113265Abstract: Provided is an adsorbent adapted to adsorb carbon dioxide by increasing the pressure, and to carry out 10% or more adsorption and adsorption of the adsorbed carbon dioxide by lowering the pressure at atmospheric pressure or higher in a range of 100 to 900 kPa without vacuuming or the like. As a result of using amorphous aluminum silicate with a Si/Al ratio of 0.7 to 1.0 and having a peak in the vicinity of ?78 ppm and ?87 ppm in a 29Si solid NMR spectrum, adsorption and desorption of 10 wt % or more can be performed in a range of 100 to 900 kPa, and this can be used as a carbon dioxide adsorbent mainly in the pressure swing adsorption method.Type: ApplicationFiled: April 11, 2008Publication date: May 6, 2010Applicant: National Institute of Advanced Industrial Science and TechnologyInventors: Masaya Suzuki, Chieko Ikeda, Koji Tajiri, Keiichi Inukai, Masaki Maeda
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Publication number: 20050142327Abstract: A flame-retardant carpet that is superior in safety and capable of exhibiting high flame retardance, by using a pile yarn containing a nylon BCF is provided. A flame-retardant nylon carpet includes a pile yarn containing nylon, a backing fabric containing polyester fiber, and latex used for binding the pile yarn to the backing fabric, wherein the pile yarn has a limiting oxygen index of 26 or more, the backing fabric has a limiting oxygen index of 26 or more, and the latex has a limiting oxygen index of 26 or more.Type: ApplicationFiled: December 23, 2004Publication date: June 30, 2005Inventors: Koji Tajiri, Morio Tsunoda
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Publication number: 20030107024Abstract: The method of preparing the porous material incorporating ultrafine metal particles comprises the following steps: (1) preparing surface-protected ultrafine metal particles by reducing metal ions in the presence of molecules such as dodecanethiol molecules; (2) immersing a wet gel in a solution of the ultrafine metal particles, thus forming an ultrafine metal particle/wet gel composite in which the ultrafine metal particles are incorporated in the wet gel; and (3) drying the ultrafine metal particle/wet gel composite to form a porous body.Type: ApplicationFiled: March 20, 2002Publication date: June 12, 2003Applicant: National Inst. of Advanced Ind. Science and Tech.Inventors: Yutaka Tai, Koji Tajiri, Masao Watanabe, Sakae Tanemura
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Patent number: 6569358Abstract: The method of preparing the porous material incorporating ultrafine metal particles comprises the following steps: (1) preparing surface-protected ultrafine metal particles by reducing metal ions in the presence of molecules such as dodecanethiol molecules; (2) immersing a wet gel in a solution of the ultrafine metal particles, thus forming an ultrafine metal particle/wet gel composite in which the ultrafine metal particles are incorporated in the wet gel; and (3) drying the ultrafine metal particle/wet gel composite to form a porous body.Type: GrantFiled: March 20, 2002Date of Patent: May 27, 2003Assignee: National Institute of Advanced Industrial Science and TechnologyInventors: Yutaka Tai, Koji Tajiri, Masao Watanabe, Sakae Tanemura
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Patent number: 5194090Abstract: A liquid pigment composition for master-coloring polyamides is described, which is comprised of a pigment and a pigment dispersant composed of a polymeric material selected from liquid polyesters and a liquid polyether esters, each having a hydroxyl value of 30 to 120 mg.KOH/g. The amount of the pigment dispersant is usually 30 to 3,000 parts by weight per 100 parts by weight of the pigment. A master-colored polyamide yarn also is described which contains, based on the weight of the yarn, 0.01 to 2% by weight of a pigment ingredient and up to 6% by weight of the above-mentioned pigment dispersant.Type: GrantFiled: June 19, 1991Date of Patent: March 16, 1993Assignee: Teijin LimitedInventors: Koji Tajiri, Hiroyoshi Minematsu, Teruhiko Adachi
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Patent number: 5135811Abstract: Polyamide yarn provided with a built-in antimicrobial capacity characterized by the adhesive on the fiber surface of an antimicrobial agent comprising an organosilicon quaternary ammonium salt and a surfactant comprising an alkyl-, aryl-, alkenyl-, or arylsulfonate salt, optionally with the presence of a level-dyeing promoter.Type: GrantFiled: February 4, 1987Date of Patent: August 4, 1992Assignee: Dow Corning CorporationInventors: William C. White, Yukio Yamahara, Koji Tajiri
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Patent number: 4835019Abstract: Polyamide yarn provided with a built-in antimicrobial capacity characterized by the adhesive on the fiber surface of an antimicrobial agent comprising an organosilicon quaternary ammonium salt and a surfactant comprising an alkyl-, aryl-, alkenyl-, or arylsulfonate salt, optionally with the presence of a level-dyeing promoter.Type: GrantFiled: April 20, 1988Date of Patent: May 30, 1989Inventors: William C. White, Yukio Yamahara, Koji Tajiri
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Patent number: 4608736Abstract: Apparatus for manufacturing a bulky textured yarn from a thermoplastic multifilament yarn by applying a pressurized heated fluid in a condition of automatically controlling the operating characters of the texturing operation. During the steady operational condition of manufacturing the bulky textured yarn, the yarn tension is continuously detected in a drafting zone between a texturing device and a winding device, and the operating characteristics, such as surface temperature of the heating roller and, temperature of the pressurized heated fluid supplied to the texturing device which affect the shrinkage of the processing yarn passing through the texturing device are automatically adjusted so as to control the yarn tension in the drafting zone.Type: GrantFiled: May 12, 1983Date of Patent: September 2, 1986Assignee: Teijin LimitedInventors: Koji Tajiri, Toshiharu Arimatu
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Patent number: 4452160Abstract: A pile yarn for a carpet and a cut pile carpet.A bulky yarn of a polyamide multifilament is fed to a false twisting and heat setting device where filaments in the yarn are thermally and partially adhered to each other while the yarn is false twisted. A bulky cohesive continuous multifilament yarn thus obtained has alternate twists therein along the lengthwise direction thereof and a latent torque therein, and after it is heat treated under a constrained condition, preferably by means of saturated or superheated steam, so that the torque in the yarn is lowered, it is tufted on a substrate of a carpet as a pile yarn and the piles are cut.Type: GrantFiled: November 12, 1982Date of Patent: June 5, 1984Assignee: Teijin LimitedInventors: Koji Tajiri, Mikio Oohara, Kiyoshi Maruo
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Patent number: 4404718Abstract: Apparatus for manufacturing a bulky textured yarn from a thermoplastic multifilament yarn by applying a pressurized heated fluid in a condition of automatically controlling the operating parameters of the texturing operation. During the steady operational condition of manufacturing the bulky textured yarn, the yarn tension is continuously detected in a drafting zone between a texturing device and a winding device, and the operating characteristics, such as surface temperature of the heating roller and, temperature of the pressurized heated fluid supplied to the texturing device, which affect the shrinkage of the processing yarn passing through the texturing device, are automatically adjusted so as to control the yarn tension in the drafting zone.Type: GrantFiled: March 18, 1981Date of Patent: September 20, 1983Assignee: Teijin LimitedInventors: Koji Tajiri, Toshiharu Arimatu
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Patent number: 4355592Abstract: A pile yarn for a carpet and a cut pile carpet.A bulky yarn of a polyamide multifilament is fed to a false twisting and heat setting device where filaments in the yarn are thermally and partially adhered to each other while the yarn is false twisted. A bulky cohesive continuous multifilament yarn thus obtained has alternate twists therein along the lengthwise direction thereof and a latent torque therein, and after it is tufted on a substrate of a carpet as a pile yarn and after the piles are cut, the carpet is heat treated, preferably by means of saturated or superheated steam. The torque in the cut piles is developed to create true twists.Type: GrantFiled: July 12, 1979Date of Patent: October 26, 1982Assignee: Teijin LimitedInventors: Koji Tajiri, Mikio Oohara, Kiyoshi Maruo