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31. 发明专利

JPH0323245A HYDRAULIC CEMENT COMPOSITION 失效
公开(公告)号：JPH0323245A
公开(公告)日：1991-01-31
申请号：JP15361289
申请日：1989-06-16
申请人： SUMITOMO CEMENT CO
发明人： SHIGERU KEIJIRO , KUBOTA YOSHIFUMI , OKU TAKASHI , TAKAGI SHIGEHARU , MIZUTANI KOZO
IPC分类号： C04B12/02
摘要： PURPOSE:To form the low-cost hydraulic cement composition by utilizing an inexpensive raw material by pulverizing a high temp. burned product or a high temp. melt constituted of a CaO-P2O5-SiO2 series. CONSTITUTION:The hydraulic cement composition is the pulverized product of a CaO-P2O5-SiO2 series high temp. burned product or high temp. melt. In the CaO-P2O5-SiO2 series material, at the time of adding alkali, MgO, Al2O3, Fl2O3, CaF2, etc., as a sintering assistant or a melting assistant, sintering is promoted or it becomes easy to be vitrificated when melting is executed. In this way, even the one constituted of a series incoporated with impurities has hydraulic properties and is effective as cement. The above hydraulic cement composition contains continuous solid soln. produced between dilime silicate (Ca2SiO4) and bone phosphate lime [Ca3(PO4)2] or contains a mineral phase of at least one kind among silicocarnotite (Ca5P2SiO12), nagelschmitite (Ca7P2 SiO16) and a CaO-P2O5-SiO2 series glass phase.

32. 发明专利

JPH02311340A HYDRAULIC CEMENT COMPOSITION 失效
公开(公告)号：JPH02311340A
公开(公告)日：1990-12-26
申请号：JP13042389
申请日：1989-05-24
申请人： SUMITOMO CEMENT CO
发明人： SHIGERU KEIJIRO , KUBOTA YOSHIFUMI , OKU TAKASHI , MIZUTANI KOZO , TAKAGI SHIGEHARU
IPC分类号： C04B12/02 , C04B28/34
摘要： PURPOSE:To obtain the subject calcium phosphate-based composition having fast hardening properties and capable of development of high strength by blending phosphoric acid or a phosphate, alpha-tribasic calcium phosphate and tetrabasic calcium phosphate. CONSTITUTION:The subject hydraulic cement composition is composed of phosphoric acid or a phosphate, alpha-tribasic calcium phosphate and tetrabasic calcium phosphate. A mixture of alpha-tribasic calcium phosphate and tetrabasic calcium phosphate is obtained by mixing a Ca-containing compound with a phosphoric acid-containing compound in 1.5 to 2.0 molar ratio of Ca to phosphoric acid and sintering the resultant mixture at >=1200 deg.C. The abovementioned calcium phosphate mixture is obtained also by thermally decomposing apatite at >=1200 deg.C. Hydroxyapatite is produced by a hydration reaction of this calcium phosphate mixture but the abovementioned reaction is slow. And as respective component particles are difficult to be uniformly dispersed, phosphoric acid or a phosphate is added thereto to uniformly disperse the respective component particles, thus obtaining the objective hydraulic cement composition having fast-hardening properties due to acceleration of the abovementioned reaction and capable of development of improved strength.

33. 发明专利

JPH02261838A PREPARATION OF POROUS CHITOSAN MATERIAL 失效
公开(公告)号：JPH02261838A
公开(公告)日：1990-10-24
申请号：JP8153589
申请日：1989-04-03
申请人： SUMITOMO CEMENT CO
发明人： KIMITA MICHIO , JITSUZAWA KOJI , TAKAGI SHIGEHARU
IPC分类号： C12N11/10 , C08B37/08 , C08J9/28
摘要： PURPOSE:To obtain a porous chitosan material with a three-dimensional network of interconnected pores and suitable for a filter medium, etc., by freeze-drying an aq. acidic soln. of chitosan, treating the produced porous body with an alkali, neutralizing it to make it water-insoluble and drying it. CONSTITUTION:Chitosan is prepd. by treating chitin separated and purified from shrimps, crabs, etc., with a conc. alkali and thereby deacetylating it. The treated product is dissolved in an aq. acidic soln. (e.g. aq. acetic acid soln.) to prepare an acidic soln. of a chitosan salt. The obtd. soln. is lyophilized to form a porous body with a complex three-dimensional network of interconnected pores. This porous body is made water-insoluble by treating with an aq. alkali soln. to neutralize it. The obtd. water-insolubilized porous chitosan is dried to obtain a porous chitosan material useful for an enzyme-immobilizing base, a hemostatic agent, etc.

34. 发明专利

JPH02258141A LOSING CORE FOR CASTING OF SELF-HARDENING CERAMIC AND MANUFACTURE THEREOF 失效
公开(公告)号：JPH02258141A
公开(公告)日：1990-10-18
申请号：JP7866889
申请日：1989-03-31
申请人： SUMITOMO CEMENT CO
发明人： SHIGERU KEIJIRO , KUBOTA YOSHIFUMI , OKU TAKASHI , TAKAGI SHIGEHARU , MIZUTANI KOZO
IPC分类号： B22C9/10 , B22C1/18
摘要： PURPOSE:To easily obtain a losing core for casting of self-hardening ceramic having high refractoriness and easy losing by constituting the core with binder containing the specific component as the essential component and a forming- sintered body containing the specific refractory aggregate. CONSTITUTION:The core is constituted with the binder containing hydroxyapatite as the essential component and the forming-sintered body containing the refractory aggregate composed of inorganic oxide grains bound with this binder. By this method, the core having extremely high heat resistance and high strength and dimensional stability at high temp. can be manufactured with good efficiency.

35. 发明专利

JPH0238854A BIOFUNCTIONAL SUBSTANCE SOLIDIFYING ELECTRODE AND ANALYSIS APPARATUS AND METHOD 失效
公开(公告)号：JPH0238854A
公开(公告)日：1990-02-08
申请号：JP18676888
申请日：1988-07-28
申请人： KOKURITSU SHINTAI SHIYOUGAISHI , SUMITOMO CEMENT CO
发明人： IKARIYAMA YOSHITO , TAKAGI SHIGEHARU , SHIODA HIROO , YUKIASHI TOMOAKI
IPC分类号： G01N27/327
摘要： PURPOSE:To achieve a higher accuracy without being affected by a non-specific substance by a method wherein the surface of a conducting substance is used as previously subjected to an oxidation treatment and a biofunctional substance solidifying electrode done as working electrode while a reference electrode and a counter electrode are arranged together in a fluid to be measured. CONSTITUTION:A measuring liquid 1 containing a trace substance to be measured is injected at an inlet 2 and passes through a passage 5 with a microelectrode 3 to analyze the measuring liquid 1 passing through a passage with a reference electrode 6 and a counter electrode 7. The microelectrode 3 integrates a biofunctional substance and a platinum black on a fine platinum line. This produces a device in a very fine size and makes a flow cell very fine with a resulting micron order size thereof. With an oxidation treatment of the electrode 3, the oxidized state of a surface can be made stable. An oxidation potential to be applied for an oxidation treatment is made higher than a potential applied for detection of a substance to be measured, thereby permitting the production of a biodetector having a fast response and a high sensitivity.

36. 发明专利

JPH01101977A MANUFACTURE OF APATITE COVER 失效
公开(公告)号：JPH01101977A
公开(公告)日：1989-04-19
申请号：JP25823987
申请日：1987-10-15
申请人： SUMITOMO CEMENT CO
发明人： TAKAGI SHIGEHARU , OKU TAKASHI , SHIGERU KEIJIRO , KUBOTA YOSHIFUMI , SHISHIKURA TSUTOMU
IPC分类号： A61L27/00 , A61K6/02 , A61K6/838
摘要： PURPOSE:To improve the formability and the tensile adhesive property of an apatite cover in restoring a bone, by kneading a mixture of tricalcium diphosphate and tetracalcium oxide diphosphate in water and then applying the mixture onto a metal or ceramic base to form the apatite cover. CONSTITUTION:A mixture of tricalcium diphosphate [alpha-Ca3(PO4)2] and tetracalcium oxide diphosphate [Ca4O(PO4)2] is kneaded in water or an aqueous solution containing at least one acid or salt, is applied onto a metal or ceramic base and is then cured by hydration to form an apatite cover. The mixture of tricalcium diphosphate and tetracalcium oxide diphosphate is prepared by dehydrating and thermally decomposing a hydroxyapatite at a high temperature of 1,350 deg.C or higher and then by grinding it. The hydroxyapatite used contains calcium and phosphorous in the molar ratio of 1.66-1.68:1. Preferably, the apatite cover formed is further hydrothermally treated in a high-pressure steam reaction tank. When the apatite cover is heat-treated in a temperature range of 50-1,300 deg.C, the adhesive property thereof can be improved.

37. 发明专利

JPH01101976A BONE CEMENT COMPONENT 失效
公开(公告)号：JPH01101976A
公开(公告)日：1989-04-19
申请号：JP25824087
申请日：1987-10-15
申请人： SUMITOMO CEMENT CO
发明人： TAKAGI SHIGEHARU , OKU TAKASHI , SHIGERU KEIJIRO , KUBOTA YOSHIFUMI , SHISHIKURA TSUTOMU
IPC分类号： A61L24/00
摘要： PURPOSE:To give a bone cement component the self curing property, to lessen the harmfulness to the tissues of an organism and thus to improve the biocompatibility thereof, by adding a solution of a sodium or potassium salt to a mixture of certain powder and a carboxylic acid to form the bone cement component. CONSTITUTION:A solution of a sodium or potassium salt is added to a mixture of powder and a carboxylic acid containing two or more carboxyl groups to make a bone cement component. The solution of the sodium or potassium salt used above reacts with calcium to form an insoluble compound. The powder above includes tricalcium diphosphate [alpha-Ca3(PO4)2] and tetracalcium oxide diphosphate [Ca4O(PO4)2]. The powder of tricalcium diphosphate and tetracalcium oxide diphosphate is prepared by dehydrating and thermally decomposing a hydroxyapatite at a high temperature of 1,350 deg.C or higher and then by grinding it. The hydroxyapatite used contains calcium and phosphorus in the molar ratio of 1.66-1.68:1. The ratio of tricalcium diphosphate to tetracalcium oxide diphosphate mixed is 2:1.

38. 发明专利

JPS6485645A BONE DIRECT BONDING TYPE ARTIFICIAL LIMB MOUNT MEMBER AND METHOD FOR MOUNTING THE SAME 失效
公开(公告)号：JPS6485645A
公开(公告)日：1989-03-30
申请号：JP24276287
申请日：1987-09-29
申请人： SUMITOMO CEMENT CO
发明人： YANO HIDEO , TAKAGI SHIGEHARU , OMASHODA KOICHI , IIJIMA TOMOHIKO
IPC分类号： A61F2/28 , A61F2/00 , A61F2/78
摘要： PURPOSE:To obtain a bone direct bonding type artificial limb mount member wherein the function of a material excellent in bio-compatibility can be sufficiently developed and utilized, by separating the part fixed and bonded to a bone within the cavity of the bone marrow and the part fixed to an artificial limb. CONSTITUTION:A support member 1 used in the cavity of the bone marrow, a fixing member 6 and an artificial limb fixing member 13 are provided. The rod like part 2 of the support member 1 used in the cavity of the bone marrow is the part inserted in the cavity of the bone marrow and a piercing hole 4 permits the piercing of a bolt when the support member 1 used in the cavity of the bone marrow is fixed to a bone by the bolt and a nut. The support member 1 used in the cavity of the bone marrow is assembled in the state inserted the piercing hole 11 provided to the center part of the fixing member 6. Further, the artificial limb fixing member 13 has a male screw part 19 at the head part thereof and threaded with and mounted to the female screw part 3 provided to the leg part (bottom part) of the support member 1 used in the cavity of the bone marrow. The member 13 has a screw part 25 at the lower part thereof in order to be fixed to the artificial limb. The support member 1 used in the cavity of the bone marrow and the limb fixing member 13 are composed of a metal material, a ceramic material or a material obtained by coating said material with ceramics and the fixing member 6 is composed of a porous calcium phosphate sintered body.

39. 发明专利

JPS6429266A BONE ADHESIVE 失效
公开(公告)号：JPS6429266A
公开(公告)日：1989-01-31
申请号：JP18554187
申请日：1987-07-27
申请人： SUMITOMO CEMENT CO
发明人： TAKAGI SHIGEHARU , OKU TAKASHI , SHIGERU KEIJIRO , KUBOTA YOSHIFUMI , SHISHIKURA TSUTOMU
IPC分类号： C04B28/02 , A61L24/00 , A61L26/00 , C04B12/02 , C04B28/04
摘要： PURPOSE:To enhance the shape adaptability to a living body and pressure resistance, by containing at least one kind of a physiological saline solution, Ringer's solution and artificial plasma in a mixture consisting of a predetermined calcium phosphate powder and saturated carboxylic acid. CONSTITUTION:At least one kind of a component selected from a physiological saline solution, Ringer's solution and artificial plasma is contained in a mixture consisting of a calcium phosphate powder, which consists of tricalcium phosphate [alpha-Ca3(PO4)2] and tetracalcium phosphate [Ca4O(PO4)2] and saturated carboxylic acid having two or more carboxylic groups. The calcium phosphate powder is pref. prepared by dehydrating and thermally decomposing hydroxyapatite wherein a mol ratio of calcium and phosphorus is 1.66-1.68 at high temp. of 1,350 deg.C or more, pref., 1,500 deg.C or more in the atmosphere, pref., in an inert gas atmosphere of nitrogen or argon and grinding the resulting composition.

40. 发明专利

JPS6322030A IMMUNOTHERAPEUTIC PREPARATION 失效
公开(公告)号：JPS6322030A
公开(公告)日：1988-01-29
申请号：JP16295786
申请日：1986-07-12
申请人： SUMITOMO CEMENT CO
发明人： SAKAI KAZUTOMI , TAKAGI SHIGEHARU
IPC分类号： A61K33/44 , A61K39/395 , A61P37/00
摘要： PURPOSE:An immunotherapeutic preparation that is composed of an AIDS virus monoclonal antibody bonding to carbon or a combination thereof with a magnetic body where the carbon can emit heat to rise temperature by high-frequency heating, thus showing markedly improved therapeutic effect against AIDS. CONSTITUTION:Monoclonal antibody for AIDS (acquired immune deficiency syndrome) is bonded to leaflet, scaly, particular, powdery, granular or spherical carbon of 10-0.01, preferably 3-0.01mu diameter or length, which is, e.g., graphite, amorphous carbon, diamond, polyacene, polyacetylene or other sintered products and can emit heat to rise temperature by high-frequency heating. The preparation can connect to AIDS viruses not only on their most locating sites but also on their translocating and dispersing sites by lymph nods and kill them by high-frequency heating. The preparation bonding to the magnetic body is used in the case where the blood contaminated with AIDS viruses is taken out of the body and treated, then the dead viruses are completely separated magnetically.

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