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公开(公告)号：FR2528871A1
公开(公告)日：1983-12-23
申请号：FR8302996
申请日：1983-02-24
Applicant: AGENCY IND SCIENCE TECHN
Inventor： FUJISHIGE MASAO , DOKIYA MASAYUKI , KAMEYAMA TETSUYA , YOKOKAWA HARUMI , UJIIE SEIICHI , FUKUDA KENZO , MOTOE AKIHIRO
Abstract: This invention provides a method of smelting aluminum by using a blast furnace. An oxygen gas is introduced into a carbon material packed in a reactor, to burn the same to form a plurality of raceways and a high-temperature reduction region among the raceways. A mixture containing an alumina-containing starting material and a carbon material is then supplied selectively into the high-temperature reduction region while substantially preventing the mixture from contacting the raceways, to reduce the alumina to aluminum.
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公开(公告)号：JPH11171515A
公开(公告)日：1999-06-29
申请号：JP35620797
申请日：1997-12-08
Applicant: AGENCY IND SCIENCE TECHN , NGK SPARK PLUG CO
Inventor： YOKOGAWA YOSHIYUKI , KAMEYAMA TETSUYA , KAWAMOTO YUKARI , NISHIZAWA KAORI , NAGATA FUKUE , SUMI YASUSHI , OKADA TERUBUMI , OKUYAMA MASAHIKO
Abstract: PROBLEM TO BE SOLVED: To provide a method for producing a hydroxyapatite coating film capable of forming a uniform coating film on the surface even for a substrate having low heat resistance. SOLUTION: A substrate is immersed particularly in an acidic 1st aq. soln. such as an aq. soln. of hydrochloric acid and after being taken out and dried, is immersed in an alkaline 2nd aq. soln. As the 2nd aq. soln., an aq. soln. of sodium hydroxide or potassium hydroxide can be used. The substrate taken out of the 2nd aq. soln. may further by immersed in a 3rd aq. soln. where an apatite component of substantially satd. or supresatd. concn. is dissolved. Thereby, a thick hydroxyapatite coating film may easily be formed. As the substrate, a substance consisting of a metal, ceramics or an org. high molecular material can be used. In this production method, since heating to a high temp. is not required, this method is applicable even to the substrate having low heat resistance, in particular a textile or the like consisting of synthetic fibers or the like.
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公开(公告)号：JPH02232309A
公开(公告)日：1990-09-14
申请号：JP5229589
申请日：1989-03-04
Applicant: AGENCY IND SCIENCE TECHN
Inventor： KAMEYAMA TETSUYA , SAKANAKA KENJI , TSUNODA TATSURO , MOTOE AKIHIRO , ARAKAWA HIRONORI , FUKUDA KENZO
Abstract: PURPOSE:To synthesize Fe-Si-C series super fine particles at high purity by rapidly cooling after reacting silane, methane and iron carbonyl in high frequency heat plasma of ultra high temp. range. CONSTITUTION:The raw material gas composed of silane, methane and iron carbonyl is fed into torch system in the high frequency heat plasma apparatus 1 from upper part of a torch 3 for reaction and reacted in the plasma of argon, etc., at about 4000-10000 deg.C. The generated Fe-Si-C series fine particles are rapidly cooled in the rapid cooling system made of silica-tube, etc., and collected with the inner wall (A) of the torch 3 for reaction and the inner wall (B) of silica-tube in the rapid cooling system. The obtd. super fine particles is useful to the synthesis of catalyst showing high catalytic activity, because of high olefin activity or high CO conversion ratio.
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公开(公告)号：JP2001031409A
公开(公告)日：2001-02-06
申请号：JP20802299
申请日：1999-07-22
Applicant: AGENCY IND SCIENCE TECHN , NGK SPARK PLUG CO
Inventor： YOKOGAWA YOSHIYUKI , KAMEYAMA TETSUYA , OKADA TERUBUMI , HATTORI MASAAKI , OKUYAMA MASAHIKO
Abstract: PROBLEM TO BE SOLVED: To provide a method for producing a hydroxyapatite film, by which the hydroxyapatite film having excellent adsorbability to bacteria, viruses, animal cells, plant cells, stinky components, and so on, can uniformly and stably be produced without relating to the shape of a substrate and to an immersion method in a production process. SOLUTION: This method for producing a hydroxyapatite film comprises stacking a plurality of substrates on which sites for facilitating the depositing of hydroxyapatite crystals have been introduced, and then immersing the stacked substrates in an aqueous solution containing components for producing the hydroxyapatite. The aqueous solution is prepared so that the hydroxyapatite film is formed at a rate of 0.001 to 0.5 g/day per g of the site-introduced substrate. The concentrations of calcium ion and phosphate ion are especially preferably 0.01 to 2 mmole/L and 0.01 to 1 mmole/L, respectively. The temperature of the aqueous solution is preferably 0 to 40 deg.C, and the pH of the aqueous solution is preferably 5 to 8.
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公开(公告)号：JPH06277515A
公开(公告)日：1994-10-04
申请号：JP5101593
申请日：1993-03-11
Applicant: TOSHIBA TUNGALOY CO LTD , AGENCY IND SCIENCE TECHN , NIHON KOSHUHA CO LTD
Inventor： KURITA HIROAKI , SHIBUKI KUNIO , FUKUDA KENZO , KAMEYAMA TETSUYA , MOTOE AKIHIRO
IPC: B01D53/94 , B01D53/86 , B01J27/22 , C07B61/00 , C07C5/03 , C07C9/10 , C07C29/145 , C07C31/10 , B01D53/36
Abstract: PURPOSE:To provide a catalyst compsn. capable of effectively reducing a Nox which is contained slightly or in a small amt. in exhaust gases at the mild condition of normal pressure by incorporating a prescribed ratio of cubic tungsten carbide and at least one kind of metal or oxide or carbide of a metal into the catalyst. CONSTITUTION:This catalyst compsn. for reduction of the Nox in exhaust gases contains >=30vol.% cubic tungsten carbide and at least one kind of the metal or the oxide or carbide of the metal (excluding the cubic tungsten carbide). The catalyst compsn. for reduction comes into efficient contact with a reaction system of exhaust gases in accordance with the use condition, etc., and can be arbitrary shapes, insofar as the catalyst does not run off outside the system. The catalyst removes the Nox in the exhaust gases and prevents the pollution by the exhaust gases when the catalyst is mounted in the pipelines of exhaust systems of not only automobiles but also traffic organs, internal combustion engines in factories as well boilers in power plants, factories, buildings, etc.
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Patent Agency Ranking
公开(公告)号：JPH06262405A
公开(公告)日：1994-09-20
申请号：JP4494193
申请日：1993-03-05
Applicant: TOSHIBA TUNGALOY CO LTD , AGENCY IND SCIENCE TECHN , NIHON KOSHUHA CO LTD
Inventor： KURITA HIROAKI , SHIBUKI KUNIO , FUKUDA KENZO , KAMEYAMA TETSUYA , MOTOE AKIHIRO
Abstract: PURPOSE:To improve the adhesive property and the durability of the film, and obtain the excellent surface hardness by forming the film containing cubic tungsten carbide by the specified composition of the specified film thickness on the surface of the base material of grinding and polishing tools. CONSTITUTION:A film containing cubic tungsten carbide with less residual stress is formed on the surface of the base material 8 by preheating the base material 8 in a vapor phase reaction device 1 provided with a plasma generating means (work coil) 6, and cooling means such as a preheating means and a circulating cooling jacket, generating tungsten carbide by the vapor phase reaction in the thermal plasma 7, and executing the rapid cooling. A coating parts excellent in the adhesive property, the durability and the surface hardness can be obtained by containing 30vol.% or more of cubic tungsten carbide in this formed film, and setting the film thickness in the range of 0.5-100mum to form the film on the surface of grinding or polishing tools.
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公开(公告)号：JPH0383892A
公开(公告)日：1991-04-09
申请号：JP22215889
申请日：1989-08-29
Applicant: AGENCY IND SCIENCE TECHN
Inventor： IMAI YOJI , WATANABE AKIO , OSATO KAZUO , KAMEYAMA TETSUYA , FUKUDA KENZO
Abstract: PURPOSE:To readily control crystal growth direction by decomposing gas of an oxygen-containing metallic compound with light irradiation, forming a thin film-like crystal of metal oxide on a base plate and growing the crystal to direction of light irradiation. CONSTITUTION:A base plate 2 is installed in a chamber 1 and gas of an oxygen- containing metallic compound (e.g. tantalum pentamethoxide gas) is introduced into the chamber 1 together with carrier gas 7. Simultaneously, light 4 from light source 11 is irradiated to the base plate 2 and the gas of oxygen-containing metallic compound is decomposed, then thin film-like crystal of metal oxide (e.g. tantalum pentoxide) is formed on the base plate, thus said crystal is grown to the irradiated direction of the light 4. By said method, the crystal growth direction is able to be controlled to a desired direction by controlling angle of the base plate 2 to the light 4, then various chemical and physical properties of the thin film are able to be controlled.
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公开(公告)号：JPH02233523A
公开(公告)日：1990-09-17
申请号：JP5265689
申请日：1989-03-03
Applicant: AGENCY IND SCIENCE TECHN
Inventor： KAMEYAMA TETSUYA , TSUNODA TATSURO , FUKUDA KENZO , KAGAWA MASAHIRO , SHONO YASUHIKO , SUZUKI MITSUO , HIRAI TOSHIO
Abstract: PURPOSE:To obtain ultrafine particles having uniform spherical shape and having adjustable ratio of metal salts by introducing an aqueous solution of Bi(NO3)2 and/or (NH4)6Mo7O24 into a high-frequency induced plasma in the form of mist. CONSTITUTION:An aqueous solution of Bi(NO3)2 and/or (NH4)6Mo7O24 is sprayed with an ultrasonic sprayer and the obtained liquid droplets having particle diameter of 1-2mum is introduced by the aid of a carrier gas into a high frequency induced plasma of an ultra-high temperature range (>=5000K).
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公开(公告)号：JP2000103890A
公开(公告)日：2000-04-11
申请号：JP29300498
申请日：1998-09-29
Applicant: AGENCY IND SCIENCE TECHN
Inventor： HARI KRISHNA BALMA , YOKOGAWA YOSHIYUKI , NISHIZAWA KAORI , NAGATA FUKUE , KAMEYAMA TETSUYA
Abstract: PROBLEM TO BE SOLVED: To provide a porous calcium phosphate compound-coating composite material using a chitin and/or chitosan material as the substrate, and a preparation thereof. SOLUTION: Chitin and/or chitosan is dissolved in an aqueous acidic solution, developed and dried to prepare properly chitin and/or chitosan in the form of film, plate or the like. The chitin and/or chitosan thus prepared is esterified with phosphoric acid and then immersed in an aqueous solution containing calcium ions and hydroxy ions and subsequently in an aqueous solution containing calcium ions and phosphate ions, whereby the chitin and/or chitosan is coated with a porous calcium phosphate compound.
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公开(公告)号：JP2000080560A
公开(公告)日：2000-03-21
申请号：JP27252198
申请日：1998-09-08
Applicant: AGENCY IND SCIENCE TECHN , NGK SPARK PLUG CO
Inventor： YOKOGAWA YOSHIYUKI , KAMEYAMA TETSUYA , OKADA TERUBUMI , OKUYAMA MASAHIKO
Abstract: PROBLEM TO BE SOLVED: To obtain an antibacterial fiber and an antibacterial filter material capable of maintaining their excellent antibacterial activities for a long period of time, and to provide a method for their production. SOLUTION: This antibacterial fiber contains a fiber, a membrane containing at least one of titanium dioxide particles, hydroxyapatite and their precursors and formed on the surface of the above fiber, and a hydroxyapatite layer formed on the surface of the above membrane. Also, the antibacterial filter material contains a base substrate such as a continuous foam type resin-foamed material consisting of a synthetic resin such as a polystyrene, polyurethane or the like, and a porous film, a porous hollow fiber membrane or the like, consisting of a polyethylene, polypropylene or the like, the similar membrane as above formed on the base substrate, and the hydroxyapatite layer formed on the surface of the membrane. The hydroxyapatite layer is preferably formed not on the whole surface of the membrane but as uniform spots on the whole surface thereof.
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