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1. 发明专利

JPH0742884A RUBBER RING FOR COATING CITY WATER PIPE JOINT 失效
公开(公告)号：JPH0742884A
公开(公告)日：1995-02-10
申请号：JP20712293
申请日：1993-07-28
申请人： KURIMOTO LTD , INOUE MTP KK
发明人： KITAGAWA MASAYOSHI , MICHIURA YOSHISADA , SUGIMURA SEIJI , KATO YOSHIKI , KUWABARA HISANOBU
IPC分类号： F16L21/02
摘要： PURPOSE:To prevent degradation of water quality by covering the surface of the rubber of a water-sealing rubber ring for use in the joints of a variety of city water pipes with a flexible resin coating harm less to human, at least over an area where the surface of the rubber could make contact with water passing through a pipe. CONSTITUTION:In a joint where a spigot 2 is fitted into the socket 1 of a cast iron pipe with a bolt and nut 4 tightening a retaining ring 3 and a socket flange together, a rubber ring 5A is interposed between the portion of the spigot 2 pressed by the end of the retaining ring 3 and the retaining ring 3 inside the socket 1, thus sealing water passing through a pipe so that it does not leak outside. In this case, the surface of rubber used in the rubber ring 5A is covered with a flexible coating 6A of a resin harmless to human, at least over an area where the surface could make contact with the water passing through the pipe. The coating 6A is preferably made of an olefine resin such as fluororesins and polyamide resins, so that even if trace amounts of toxic substances are added to the rubber, the coating prevents the toxic substances from dissolving into the water.

2. 发明专利

JPH06322161A METHOD FOR SURFACE TREATMENT OF WATER-SWELLABLE RUBBER 失效
公开(公告)号：JPH06322161A
公开(公告)日：1994-11-22
申请号：JP13688093
申请日：1993-05-13
申请人： INOUE MTP KK , KURIMOTO LTD
发明人： KATO YOSHIKI , KITAGAWA MASAYOSHI , MICHIURA YOSHISADA
IPC分类号： C08J7/00
摘要： PURPOSE:To obtain a method for subjecting water-swellable rubber to surface treatment without especially limiting a water-swellable resin to be used and readily reducing consumption of potassium permanganate in extracting water. CONSTITUTION:In a method for surface treatment, unvulcanized rubber (EPDM) is mixed with water-swellable rubber (e.g. crosslinked polyacrylate-based resin), molded, then vulcanized to produce water-swellable rubber, which is oxidized at least on the surface. The oxidation can be carried out by immersing the water-swellable rubber in an aqueous solution of a peroxide, chlorine or a chlorine compound (sodium hypochlorite). Consequently, consumption of potassium permanganate based on dissolution examination shown by JIS K6,353 can be readily reduced to

3. 发明专利

DE60044573D1 Mit Gewinde versehenes Befestigungselement und Verfahren zu dessen Herstellung 未知
公开(公告)号：DE60044573D1
公开(公告)日：2010-08-05
申请号：DE60044573
申请日：2000-03-29
申请人： KURIMOTO LTD , KISHIWADA STAINLESS STEEL WORK , HIGASHI KENJI
发明人： KITAGAWA MASAYOSHI , MICHIURA YOSHISADA , MAEKAWA KEIICHI , KOHARA MITSUAKI , HIGASHI KENJI , ASAOKA TAKEYUKI
IPC分类号： B21K1/44 , B21K1/56 , B21J5/00 , B21J13/02 , C22C23/00 , C22C23/02 , C22C23/04 , C22F1/00 , C22F1/06 , F16B33/00 , F16B35/00 , F16B37/00

4. 发明专利

JP2004332070A System for analyzing combinedness of substrate to organic coating film 审中-公开
公开(公告)号：JP2004332070A
公开(公告)日：2004-11-25
申请号：JP2003131885
申请日：2003-05-09
申请人： Kenji Azuma , Kurimoto Ltd , 健司東 , 株式会社栗本鐵工所
发明人： TORII HIDEYA , MICHIURA YOSHISADA , KITAGAWA MASAYOSHI , AZUMA KENJI
IPC分类号： C23C14/12 , C23C14/54 , C23C26/00
摘要： PROBLEM TO BE SOLVED: To provide a system for analyzing a combining state between an organic film and a substrate by a computer simulation.
SOLUTION: This system is provided with: an input device, in which a designing condition of molecular structures of the organic film as an analyzing objective and the substrate forming this film; a numerical calculation/analyzing device, in which a molecular designing program moved with an instruction from this input device and a simulation program calculating the organic film combined state on the surface of the substrate, are composed, a data storing /extracting device, in which the numerical value data of the molecular structures of the substrate and the film, are classified and stored to make the data base; and an output device, in which the data extracted from this data storing/extracting device, is outputed.
COPYRIGHT: (C)2005,JPO&NCIPI

5. 发明专利

JP2004301535A Method for analyzing bonding state of organic film on surface of metal 审中-公开
公开(公告)号：JP2004301535A
公开(公告)日：2004-10-28
申请号：JP2003091809
申请日：2003-03-28
申请人： Kenji Azuma , Kurimoto Ltd , 健司東 , 株式会社栗本鐵工所
发明人： TORII HIDEYA , MICHIURA YOSHISADA , KITAGAWA MASAYOSHI , AZUMA KENJI
IPC分类号： G01N33/20
摘要： PROBLEM TO BE SOLVED: To provide a more accurate and rapid behavior analyzing and evaluating method in relation to a process for forming an organic film on the surface of a metal before the synthesis of an organic film compound and a film forming experiment.
SOLUTION: The potential energies in an atomic or molecular unit of the surface of the metal to be analyzed and the organic film on the surface of the metal are respectively calculated on the basis of a molecular dynamic method by a computer to culculate the most stable structures being the minimum energy values thereof. This calculation is performed using a monomer model as a unit in relation to the organic film and performed in relation to the surface of the metal by constructing the periodic boundary model of a crystal state. Next, the total energy value (=the potential energy value of the periodic boundary model of the surface of the metal-the potential energy value of the monomer model of the organic film) of the most stable structure model wherein the organic film and the periodic boundary model are combined is repeatedly calculated on the basis of molecular kinetics so as to be converged to a definite value to simulate the most stable structure model by the computer. When the total energy value is converged to the definite value, the organic film on the surface of the metal is determined to be stable and the bonded state of the organic film at this time of the behavior reaching the bonded state is analyzed.
COPYRIGHT: (C)2005,JPO&NCIPI

6. 发明专利

JP2004268118A Method of producing iron based shape memory alloy pipe, and pipe produced thereby 审中-公开
公开(公告)号：JP2004268118A
公开(公告)日：2004-09-30
申请号：JP2003065219
申请日：2003-03-11
申请人： Hiroshi Kubo , Kurimoto Ltd , 紘久保 , 株式会社栗本鐵工所
发明人： UMEMOTO KOSAKU , NAKAMURA KIMIO , MICHIURA YOSHISADA , KITAGAWA MASAYOSHI , KUBO HIROSHI
IPC分类号： B22D1/00 , B22D13/02 , C22C38/00
摘要： PROBLEM TO BE SOLVED: To increase the ratio of columnar crystals in a pipe fitting made of an iron based shape memory alloy, and to improve the fastening force of the pipe.
SOLUTION: In the method of producing an iron based shape memory alloy pipe, at the time when a pipe formed of an iron based shape memory alloy as the stock of a pipe fitting is cast, Ti as an element more easily bonded with N than the case of Al is added to the molten metal of an iron based shape memory alloy in a range where it is bonded with the whole N contained in the alloy, and also the amount of titanium compounds disturbing the formation of columnar crystals is regulated within an allowable range. Thus, the precipitation of AlN on the solidification of the alloy is suppressed to obtain a columnar crystal ratio of ≥50%, so that the inside diameter shrinkage rate of the pipe fitting using the pipe as the stock is increased to improve the fastening force of the pipe.
COPYRIGHT: (C)2004,JPO&NCIPI

7. 发明专利

JP2004195493A Joining material, production method therefor, structure of traffic transportation means, and structure of railway vehicle 有权
公开(公告)号：JP2004195493A
公开(公告)日：2004-07-15
申请号：JP2002365377
申请日：2002-12-17
申请人： Kenji Azuma , Kurimoto Ltd , Railway Technical Res Inst , 健司東 , 株式会社栗本鐵工所 , 財団法人鉄道総合技術研究所
发明人： MORI HISASHI , TSUJIMURA TARO , SAKAMOTO YOSHIO , KITAGAWA MASAYOSHI , MICHIURA YOSHISADA , MAEKAWA KEIICHI , AZUMA KENJI
IPC分类号： B61D17/00 , B23K20/00 , B32B3/12 , B32B15/01
摘要： PROBLEM TO BE SOLVED: To provide a joining material whose lightening can be attained while maintaining its strength and rigidity, to provide a production method therefor, to provide a structure of a traffic transportation means, and to provide a structure of a railway vehicle. SOLUTION: The joining material 3 is used for a structure of a traffic transportation means such as a railway vehicle. The joining material 3 is a clad plate with a sandwich structure obtained by joining a metal 3a and a metal 3b with an adhesive agent layer 3c. The metal 3a is an alloy bulk material such as an aluminum alloy, a titanium alloy and stainless steel. As the aluminum alloy, the one for elongation is preferable, and a heat treatment type alloy such as a 6,000 series aluminum alloy which has excellent strength and corrosion resistance and can obtain prescribed strength by age hardening is particularly preferable. The metal 3b is a magnesium alloy, and is a magnesium alloy extruded material subjected to extrusion working. As the adhesive agent layer 3c, a powerful adhesive such as an epoxy adhesive is preferable in the case heating treatment is performed after coating. COPYRIGHT: (C)2004,JPO&NCIPI

8. 发明专利

JP2004176180A Threaded fastener 审中-公开
公开(公告)号：JP2004176180A
公开(公告)日：2004-06-24
申请号：JP2004010322
申请日：2004-01-19
申请人： Kenji Azuma , Kishiwada Stainless Kk , Kurimoto Ltd , 岸和田ステンレス株式会社 , 健司東 , 株式会社栗本鐵工所
发明人： KITAGAWA MASAYOSHI , MICHIURA YOSHISADA , MAEKAWA KEIICHI , OBARA MITSUAKI , AZUMA KENJI , ASAOKA TAKESHI
IPC分类号： F16B35/00 , C22C1/10 , C22C23/02 , C22C23/04 , C22C49/04 , C22C101/02 , C22C101/06 , C22C101/10 , C22C101/12 , C22C101/16
摘要： PROBLEM TO BE SOLVED: To provide threaded fasteners which have light weight and excellent productivity and by which manufacturing steps can be decreased and manufacturing costs can be reduced.
SOLUTION: The threaded fasteners can be obtained by subjecting industrial pure magnesium or a magnesium alloy or a composite material using these as a matrix, each having a fine-grained superplastic structure of ≤100μm grain size, to heating to 250 to 400°C where a superplastic phenomenon occurs and carrying out forming by warm forging utilizing the superplastic phenomenon.
COPYRIGHT: (C)2004,JPO

9. 发明专利

JP2004043720A Powder coating composition for pipe 有权
公开(公告)号：JP2004043720A
公开(公告)日：2004-02-12
申请号：JP2002205707
申请日：2002-07-15
申请人： Dainippon Ink & Chem Inc , Kurimoto Ltd , 大日本インキ化学工業株式会社 , 株式会社栗本鐵工所
发明人： DEGUCHI TAKAAKI , KAJIWARA YOSHIHISA , SAITO MASAHIKO , MICHIURA YOSHISADA , KITAGAWA MASAYOSHI , MIYAZAWA MASASHI , KAMEYAMA YASUSHI , YAMAZAKI TETSUYA
IPC分类号： C09D163/00 , C09D5/03
摘要： PROBLEM TO BE SOLVED: To provide a powder coating composition for pipe, composed of an epoxy resin, enabling the baking of the resin to a metallic pipe, etc., at a temperature lower than the baking temperature of the conventional composition and having excellent curability, coating film property and storage stability.
SOLUTION: The powder coating composition for pipe contains (A) a solid epoxy resin, (B) a curing agent and (C) a filler as essential components. The solid epoxy resin (A) is derived from (a1) bisphenol F, (a2) a bivalent phenol expressed by general formula (R
1 to R
4 are each H or a 1-9C alkyl), and an epihalohydrin.
COPYRIGHT: (C)2004,JPO

10. 发明专利

JP2000343178A SCREW PARTS, AND MANUFACTURING METHOD OF SCREW PARTS 失效
公开(公告)号：JP2000343178A
公开(公告)日：2000-12-12
申请号：JP2000033201
申请日：2000-02-10
申请人： KURIMOTO LTD , KISHIWADA STAINLESS KK , AZUMA KENJI
发明人： KITAGAWA MASAYOSHI , MICHIURA YOSHISADA , MAEKAWA KEIICHI , OBARA MITSUAKI , AZUMA KENJI , ASAOKA TAKESHI
IPC分类号： B21K1/44 , B21J5/00 , B21J13/02 , B21K1/56 , C22C23/00 , C22C23/02 , C22C23/04 , C22F1/00 , C22F1/06 , F16B33/00 , F16B35/00 , F16B37/00
摘要： PROBLEM TO BE SOLVED: To provide screw parts which are light-weighted, excellent in productivity, can cut off manufacturing processes and can reduce manufacturing costs, and a manufacturing method for screw parts. SOLUTION: In this manufacturing method for screw parts, industrial pure magnesium, magnesium alloy, or a composite material composed of magnesium or its alloy as a parent phase (matrix) having a fine grain superplastic structure of 100 μm or less crystal grain diameter, is heated to 250 deg.C-400 deg.C where a superplastic phenomenon occurs. By utilizing the superplastic phenomenon, the material is molded with warm forging so as to form screw parts.

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