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公开(公告)号：CA2316312A1
公开(公告)日：1999-07-08
申请号：CA2316312
申请日：1998-12-25
Applicant: TAODA HIROSHI , NONAMI TORU , SHOWA DENKO KK , AGENCY IND SCIENCE TECHN
Inventor： ITO KATSURA , TAODA HIROSHI , NONAMI TORU , HAGIHARA HIROYUKI
IPC: B01D53/88 , B01J21/06 , B01J27/18 , B01J29/82 , B01J35/00 , B01J37/02 , B01J37/025 , B01J35/02 , B01J31/38
Abstract: A photocatalyst powder for environmental purification which comprises fine titanium dioxide particles and a porous coating layer of calcium phosphate formed on at least a part of the surface of the particles, and in which an anionic surfactant is present at least at the interface between the surface of the fine titanium dioxide particles and the porous coating layer of calcium phosphate. The photocatalyst powder is produced by dispersing fine titanium dioxide particles in an aqueous slurry containing an anionic surfactant and then forming a porous coating layer of calcium phosphate on the surface of the fine particles. This photocatalyst powder is used, for example, after having been supported on a molded organic polymer.
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公开(公告)号：DE69840581D1
公开(公告)日：2009-04-02
申请号：DE69840581
申请日：1998-12-25
Applicant: AGENCY IND SCIENCE TECHN , NONAMI TORU , SHOWA DENKO KK , TAODA HIROSHI
Inventor： TAODA HIROSHI , NONAMI TORU , ITO KATSURA , HAGIHARA HIROYUKI
Abstract: A photocatalytic powder for environmental clarification, comprising finely divided titanium dioxide particles having a coating of porous calcium phosphate formed on at least part of the surface of each titanium dioxide particle, wherein an anionic surface active agent is present at least on the interface between said coating of porous calcium phosphate and the titanium dioxide particle. This photocatalytic powder is produced by dispersing finely divided titanium dioxide particles in an aqueous slurry containing an anionic surface active agent, and then forming a coating of porous calcium phosphate on at least part of the surface of each titanium dioxide particle. This photocatalytic powder is used, for example, by supporting it in an organic polymer shaped article.
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公开(公告)号：AT422964T
公开(公告)日：2009-03-15
申请号：AT98961603
申请日：1998-12-25
Applicant: AGENCY IND SCIENCE TECHN , SHOWA DENKO KK , TAODA HIROSHI , NONAMI TORU
Inventor： TAODA HIROSHI , NONAMI TORU , ITO KATSURA , HAGIHARA HIROYUKI
Abstract: A photocatalytic powder for environmental clarification, comprising finely divided titanium dioxide particles having a coating of porous calcium phosphate formed on at least part of the surface of each titanium dioxide particle, wherein an anionic surface active agent is present at least on the interface between said coating of porous calcium phosphate and the titanium dioxide particle. This photocatalytic powder is produced by dispersing finely divided titanium dioxide particles in an aqueous slurry containing an anionic surface active agent, and then forming a coating of porous calcium phosphate on at least part of the surface of each titanium dioxide particle. This photocatalytic powder is used, for example, by supporting it in an organic polymer shaped article.
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公开(公告)号：JP2000126551A
公开(公告)日：2000-05-09
申请号：JP30564998
申请日：1998-10-27
Applicant: NORITAKE CO LTD , TOUGEDA HIROSHI , NONAMI TORU , AGENCY IND SCIENCE TECHN
Inventor： KATO SHINJI , IWATA MISAO , MATSUNAGA HIROKAZU , TOUGEDA HIROSHI , NONAMI TORU
Abstract: PROBLEM TO BE SOLVED: To provide a photocatalyst filter that is excellent in light transmission characteristic and low in pressure loss of a gas to be treated passing through the photocatalyst filter. SOLUTION: This filter 1 comprises a fiber porous body 2 using a large number of silica fibers 21 having intersections 211 thereof connected with each other by an inorganic binder 23 and titanium oxide particles 3 fixed to the silica fibers 21, and is of a type wherein a gas to be treated is made to pass through the fiber porous body 2. The fiber porous body 2 has a porosity of 90-98% and a mean pore diameter of 40-100 μm.
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公开(公告)号：JP2000000402A
公开(公告)日：2000-01-07
申请号：JP18340898
申请日：1998-06-15
Applicant: AGENCY IND SCIENCE TECHN , TOUGEDA HIROSHI , NONAMI TORU , NORITAKE CO LTD
Inventor： TOUGETA HIROSHI , NONAMI TORU , YANO KENJI , KATO SHINJI , IWATA MISAO , MATSUNAGA HIROKAZU
IPC: B01D17/022 , B01D39/20
Abstract: PROBLEM TO BE SOLVED: To efficiently recover oil from a liq. oil-water mixture by forming a highly porous body contg. inorg. fibers and an inorg. binder and imparting such a satisfactory hydrophilicity as to pass water and to intercept oil to a part of the highly porous body coming in contact with the oil-water mixture. SOLUTION: A molding contg. an aggregate of inorg. fibers capturing an inorg. binder forming powdery starting material is fired at a temp. above the min. temp. at which the powdery starting material reacts with the inorg. fibers to obtain a highly porous fired body having a large specific surface area, a large number of -OH groups per unit volume and such a sufficiently high hydrophilicity as to pass water and to intercept oil. Amorphous silica fibers are predominantly used as the inorg. fibers and fibers of one or more selected from alumina, an aluminosilicate and an aluminoborosilicate are used as inorg. fibers for reinforcement. The inorg. binder is the reaction product of powder of a crystallization inhibitor which inhibits the crystallization of the amorphous silica fibers with the inorg. fibers.
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Patent Agency Ranking
公开(公告)号：JPH11267519A
公开(公告)日：1999-10-05
申请号：JP37668498
申请日：1998-12-25
Applicant: AGENCY IND SCIENCE TECHN , SHOWA DENKO KK , TOUGEDA HIROSHI , NONAMI TORU
Inventor： TOUGEDA HIROSHI , NONAMI TORU , ITO KATSURA , HAGIWARA HIROYUKI
IPC: A61L9/01 , A61L9/16 , A61L9/20 , B01J2/00 , B01J2/20 , B01J31/38 , B01J33/00 , B01J35/02 , B01J37/03 , C01B25/32 , C01G23/04 , C01G23/07 , C02F1/32 , C02F1/72 , D01F1/10
Abstract: PROBLEM TO BE SOLVED: To improve the durability of a photocatalyst powder for purifying environment to be added into organic fibers and others by kneading and others, by making an anionic surfactant exist on an interface between a titanium dioxide fine particle and a porous calcium phosphate coating layer formed on a part of its surface. SOLUTION: In the photocatalyst powder for purifying environment which can purify environment effectively, economically, and safely, a powder, in which a porous calcium phosphate coating layer is formed on a part of the surface of a titanium dioxide fine particle, is prepared, an anionic surfactant is made to exist on the interface between the coating layer and the particle. When the photocatalyst powder is supported on an organic polymer medium such as organic fibers by kneading, embedding, and other means and used, the durability is made able to be improved without deteriorating the medium. The titanium dioxide fine particles to be used are preferably a substance the average particle diameter of the primary particles of which is 0.001-0.2 micron.
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公开(公告)号：JP2000344640A
公开(公告)日：2000-12-12
申请号：JP15545399
申请日：1999-06-02
Applicant: AGENCY IND SCIENCE TECHN , TOUGEDA HIROSHI , NONAMI TORU , ISHIBASHI TAKURO , ISHIBASHI HIROZO
Inventor： TOUGEDA HIROSHI , NONAMI TORU , ISHIBASHI TAKURO , ISHIBASHI HIROZO
Abstract: PROBLEM TO BE SOLVED: To obtain the subject new type bleaching agent with excellent workability and safety, etc. SOLUTION: This bleaching agent for home bleaching use is obtained by mixing calcium phosphate-coated titanium dioxide ultramicroparticles into a titanium dioxide sol. This bleaching agent has the action to adsorb and remove organic components contributing to teeth discoloration. Furthermore, this bleaching agent can also be used by combining this agent with a light source causing photocatalytic reaction into a bleaching agent kit.
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公开(公告)号：JP2000083971A
公开(公告)日：2000-03-28
申请号：JP27653898
申请日：1998-09-10
Applicant: AGENCY IND SCIENCE TECHN
Inventor： NAGANUMA KATSUYOSHI , KAMIYA AKIRA , TOTSU AKIRA , NONAMI TORU , KATO MAKOTO
IPC: A61C8/00
Abstract: PROBLEM TO BE SOLVED: To lessen the physical burden on a patient at the time of attachment of an artificial dental root, to lessen the occurrence of inflammation after the attachment and to easily fix the artificial dental root to the alveolar bone by providing a planar end with a hook for fixing for the purpose of fixation of the artificial dental root to the alveolar bone and prevention of dislodgment. SOLUTION: The artificial dental root is used by fixing the hook 3 for fixing disposed over the entire part or part at the front end of the planar part 2 into grooves previously chipped and disposed at the prescribed positions on the flank of the alveolar bone 4 and fixing the artificial dental root to the alveolar bone 4. The transverse length of the planar part 2 is in a range of 8 to 20 mm and the longitudinal length suffices with a range of approximately 5 to 10 mm both on the right and left from the center of a post part 1 inclusive of the hook 3 for fixing at the center of the shape of the bent planar part 2. The hook 3 for fixing entering the grooves on the flank of the alveolar bone 4 plays the role of fixing the artificial dental root and the force acting on the post part 1 may be received at over the entire part of the contact surface of the planar part 2 and the alveolar bone 4 if not only the shape of the hook 3 for fixing but the bone side shape of the planar part 2 coincide with the shape of the alveolar bone 4 in ruggedness inversion.
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公开(公告)号：JP2000072572A
公开(公告)日：2000-03-07
申请号：JP25928298
申请日：1998-08-27
Applicant: AGENCY IND SCIENCE TECHN
Inventor： NONAMI TORU , KAMEYAMA TETSUYA , DOI YUTAKA
Abstract: PROBLEM TO BE SOLVED: To simply and efficiently produce an implant molded product having a desired shape, desired surface properties, a desired accuracy, etc., by baking apatite carbonate at a specific temperature or below, filling a sintered material in a metal mold and then carrying out plastic working at a specified temperature. SOLUTION: A raw material powder of apatite carbonate having about 1-300 m2/g value of BET is baked at
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公开(公告)号：JP2001000452A
公开(公告)日：2001-01-09
申请号：JP17043699
申请日：1999-06-17
Applicant: AGENCY IND SCIENCE TECHN
Inventor： TOTSU AKIRA , KAMIYA AKIRA , NAGANUMA KATSUYOSHI , SHU TAKASHI , NONAMI TORU , TERAOKA HIROSHI , SONODA TSUTOMU , USHIKI KENICHI
Abstract: PROBLEM TO BE SOLVED: To provide implant of high affinity with living bodies used by dentists and orthopedists as a substitute device for hard tissues, and also provide a method of manufacturing the same. SOLUTION: The process of preparation of the implant comprises conversion of the load from a uniaxial pressing apparatus to a load from two laterally facing directions using a load transmitting mechanism of a wedge. This is subjected to plastic deformation in a mold by simultaneous thermal pressing of both bottom faces of the processed material consisting of titanium or its alloy. Then, biologically active ceramics, for example hydroxyapatite, is uniformly squeezed into the whole side of the processed material.
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