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1. 发明专利

JPH08251877A ELCTRIC SLIDING CONTACT MATERIAL 失效
公开(公告)号：JPH08251877A
公开(公告)日：1996-09-27
申请号：JP5213295
申请日：1995-03-13
申请人： MATSUSHITA ELECTRIC IND CO LTD , NIPPON STEEL CORP
发明人： YAMASHITA FUMITOSHI , KUROZUMI SEIJI , MURANO KATSUHIRO , ICHIKO OSAMI , HAYASHI KAZUNORI , SASAKI JUN
IPC分类号： C23C10/06 , H01B5/02 , H01R39/20 , H02K13/00
摘要： PURPOSE: To suppress the abrasion caused by intermetal cohesion so as to get continuously stable sliding property by implanting carbon ions into the sliding face of a base material made of several kinds of metals or alloy consisting of these two or more kinds. CONSTITUTION: Base material of a sliding contact is made of metal of any one among Au, Ag, Pd, Pt, Ru, Rh, Cu, lr, In, Ni, Sn, Zn, and Be or alloy consisting of these two or more kinds. In case of adaptation to the brush contact of a micromotor, the brush contact 1b is one being buried in a brush base metal 1a where the alloy structure consists of Be1, Fe0.1 , Co0.3 , and Si0.2 , Al0.1 , and the rest is Cu, and ions are implanted into the base metals of Ag30 , Pd3.5 , Cu14 , Pt10 , and Zn1 . On the other hand, for the armature 5, an armature piece 5n, where the outermost layer is alloy of Au60 and Ag40 , the middle layer is alloy of Ag90 and Cd1 , and further the inmost layer is Cu, is annular, and this is buried and fixed in the insulating member 5a. As a result, abrasion is suppressed, and continuously stable sliding property can be obtained.

2. 发明专利

JPH06106376A WORKING HEAD FOR LASER SCARF PROCESSING 失效
公开(公告)号：JPH06106376A
公开(公告)日：1994-04-19
申请号：JP25462892
申请日：1992-09-24
申请人： NIPPON STEEL CORP
发明人： ICHIKO OSAMI , YOSHIDA MITSUO , FUJISAWA JUNICHI
IPC分类号： B22D29/00 , B23K26/06 , B23K26/064 , B23K26/073 , B23K26/14 , B23K26/352 , G02B27/00 , B23K26/00
摘要： PURPOSE:To eliminate such a defect as a cracking, etc., prevent ruggedness after scarfing the surface and obtain a smooth surface by irradiating a defective part with a laser beam, and blowing oxygen gas or mixed gas containing oxygen thereto, in a device for eliminating a cracking, etc., existing on the surface of a material such as iron and steel, a non-ferrous metal, etc., by a scarf processing. CONSTITUTION:This working head is provided with optical mirrors 2, 3 for shaping a laser beam 1 emitted from a laser transmitter to a sheet-like beam, a nozzle 8 having an opening whose width is larger than that of the sheet-like beam for blowing oxygen gas, etc., supplied from a gas supply device to the surface of a non-working material 4.

3. 发明专利

JPH0580317B2 失效
公开(公告)号：JPH0580317B2
公开(公告)日：1993-11-08
申请号：JP6613385
申请日：1985-03-29
申请人： NIPPON STEEL CORP
发明人： HAMADA NAOYA , TAKATO HIDEO , ICHIKO OSAMI , MINAMIDA KATSUHIRO
IPC分类号： H01S3/101 , B23K26/064 , H01S3/00 , H01S3/10 , B23K26/06

4. 发明专利

JPH0557075B2 失效
公开(公告)号：JPH0557075B2
公开(公告)日：1993-08-23
申请号：JP13751885
申请日：1985-06-24
申请人： NIPPON STEEL CORP
发明人： ICHIKO OSAMI , HAMADA NAOYA , TAKATO HIDEO
IPC分类号： H01S3/00 , B23K26/00 , B23K26/03 , B23K26/064 , G02B26/08 , G02B27/00 , H01S3/10 , B23K26/08

5. 发明专利

JPH032333A METHOD AND APPARATUS FOR ROTARY MELTING TREATMENT WITH LASER BEAM 失效
公开(公告)号：JPH032333A
公开(公告)日：1991-01-08
申请号：JP13304889
申请日：1989-05-26
申请人： NIPPON STEEL CORP
发明人： ICHIKO OSAMI , KASAI YOSHINORI , HIRANO KENJI
IPC分类号： C30B13/00 , C22B9/22
摘要： PURPOSE:To execute melting treatment for uniformizing quality of a metal, alloy and compound material and improving the characteristics by irradiating a cylindrical material to be worked with laser beam, melting almost to center shaft, rotating and shifting the material to be worked in order. CONSTITUTION:In the vacuum chamber, the cylindrical material 3 to be worked is irradiated with the laser beam 1 through a condensing lens and rotated with a rotary device 4, and output of the laser beam and rotating velocity of the material 3 to be worked are regulated so that the melting depth comes to almost equal to the radius of the material 3 to be worked. By this method, the melting part 6 and the solidified part 7 are developed, and the melting treatment is executed to a part of the material 3 to be worked as round disk state by turning one round. After turning one round, the material 3 to be worked is successively shifted together with the rotary device 4 in the axial direction with a shifting device 5 and shifted at the velocity corresponding to the rotating velocity while rotating the material 3 to be worked to execute the melting treatment. By this method, the melting treatment can be executed to the whole of material 3 to be worked to the inner part, and the quality is uniformized and the characteristics is improved, etc.

6. 发明专利

JPH01246718A MANUFACTURE OF OXIDE SUPERCONDUCTIVE MATERIAL TAPE 失效
公开(公告)号：JPH01246718A
公开(公告)日：1989-10-02
申请号：JP7208988
申请日：1988-03-28
申请人： NIPPON STEEL CORP
发明人： ICHIKO OSAMI , MURAKAMI MASAHITO , MATSUDA SHOICHI , ISHIBASHI AKIRA
IPC分类号： C01B13/14 , C01G1/00 , C01G3/00 , C23C26/00 , H01B12/06 , H01B13/00
摘要： PURPOSE:To obtain an oxide superconductive tape closely attached to a substrate by loading a powder which consists of an oxide type superconductive material component in a layer form, making the substrate at a specific temperature, and radiating laser beams on the powder layer to fuse the powder layer. CONSTITUTION:A specific thickness of powder 3 of a superconductive material is loaded on a substrate 1 by a hopper and a feeding device 2. Then, the substrate 1 is, together with the powder layer, preheated with the upper heater line 6 and the lower heater line 6-a in a heating furnace 5, while passing through the heating furnace 5 for preheating. In this case, the temperature of the substrate 1 is made in the condition at 100 deg.C or higher. Then, laser beams 8 injected from an oscillator through an opening 7 furnished at the upper side of the heating furnace are condensed by a condensing mirror 9, and radiated on the powder layer on the substrate. As a result, the powder layer is fused sufficiently, molten in a thin layer of the interface with the substrate, and delivered from the laser radiating area as a coverage layer solidly attached to the substrate.

7. 发明专利

JPH01181987A METHOD AND DEVICE FOR CONTROLLING IRRADIATION OF LASER BEAM 失效
公开(公告)号：JPH01181987A
公开(公告)日：1989-07-19
申请号：JP309488
申请日：1988-01-12
申请人： NIPPON STEEL CORP
发明人： NAKANISHI SHINSUKE , ICHIKO OSAMI , MINAMIDA KATSUHIRO , HAGA HIROTSUGU , MIZUHASHI NOBUO
IPC分类号： G02B27/09 , B23K26/00 , B23K26/06 , B23K26/073 , G02B27/00 , H01S3/101
摘要： PURPOSE:To control the shape of an irradiation light by spreading a laser beam by a convex mirror and adequately changing the distance between each mirror by stopping it in the vertical and horizontal directions by a pair of concave circular columnar mirrors. CONSTITUTION:The laser beam 20 inputted from an oscillator is transmitted to a convex mirror 3 via plane mirrors 11, 12 to relatively enlarge the longitudinal and horizontal diameters thereof. The beam is then input to the 1st recessed circular columnar mirror 4 to stop the component in the horizontal direction only and the component in the direction(the longitudinal direction component) displaced 90 deg. is stopped by inputting it to the 2nd recessed circular columnar mirror 5 having a curve in the longitudinal direction further. The beam is formed in the specified shape by adequately deforming one or both parts of the distance D1 between a convex mirror 3 and the 1st recessed circular columnar mirror 4 and the distance D2 between the 1st mirror 4 and 2nd mirror 5. The beam shape at the radiation part is thus controlled to the optimum one corresponding to the working and welding can well be performed.

8. 发明专利

JPS6418596A METHOD AND DEVICE FOR CONTROLLING IRRADIATION OF LASER BEAM 失效
公开(公告)号：JPS6418596A
公开(公告)日：1989-01-23
申请号：JP17493887
申请日：1987-07-15
申请人： NIPPON STEEL CORP
发明人： NAKANISHI SHINSUKE , ICHIKO OSAMI , MINAMIDA KATSUHIRO , HAGA HIROTSUGU , MIZUHASHI NOBUO
IPC分类号： B23K26/06 , B23K26/073 , G02B17/00 , G02B27/00 , G02B27/09
摘要： PURPOSE:To obtain a laser beam with a desired shape by changing the distance between a first cylindrical convex mirror and a second cylindrical convex mirror and the distance between the second cylindrical convex mirror and a concave mirror. CONSTITUTION:In order to enlarge the vertical diameter at an irradiation part of a projection laser beam, the distances D1+D2 between the mirrors are fixed, namely, the distance between the first cylindrical convex mirror 3 and the concave mirror 5 is fixed and only the distance D2 between the mirrors is enlarged. In this case, the cylindrical convex mirror 4 and the concave mirror 5 are moved at the same time. By this operation, the projection laser beam from the concave mirror 5 is controlled to the shape in accordance with a value of D2 and projected on a welding point. Further, in case of changing the horizontal diameter with the vertical diameter maintained constant, D1+D2 are changed with D2 maintained constant. In this case, it is realized by changing the positions of the cylindrical concave mirror 4 and the concave mirror 5 or changing the position of only the cylindrical convex mirror 3. By this method, the vertical diameter and the horizontal diameter of the laser beam at the irradiation part of the laser beam can be controlled independently which can be operated rapidly only by changing the position of a transmission mirror.

9. 发明专利

JPS63295066A HIGH-SPEED TIG WELDING METHOD 失效
公开(公告)号：JPS63295066A
公开(公告)日：1988-12-01
申请号：JP12955887
申请日：1987-05-26
申请人： NIPPON STEEL CORP
发明人： TERASAWA TAKESHI , HAYASHI TERUHIKO , KIMURA KINICHI , ICHIKO OSAMI
IPC分类号： B23K9/16 , B23K26/21
摘要： PURPOSE:To weld sheet metals with the high quality at a high speed by performing the laser beam irradiation under specific conditions in advance on the objective position of a W electrode at the time of performing the TIG welding of the sheet metals with the specific thickness. CONSTITUTION:At the time of performing the TIG welding of the metallic materials with the thickness =10 J/cm at the metal surface which is calculated by a formula E=P/DV at the position separated by the distance

10. 发明专利

JPS63199469A GAS LASER OSCILLATOR 失效
公开(公告)号：JPS63199469A
公开(公告)日：1988-08-17
申请号：JP3151887
申请日：1987-02-16
申请人： NIPPON STEEL CORP
发明人： ICHIKO OSAMI , NAKANISHI SHINSUKE
IPC分类号： H01S3/034 , H01S3/038 , H01S3/08
摘要： PURPOSE:To obtain wide beams which have been already nearly linear when they are emitted from a laser oscillator, by disposing plurality of rows of discharge electrodes in the direction of a gas flow and besides disposing resonator mirrors whose width is larger than that of the plurality of rows of discharge electrodes. CONSTITUTION:In a three-axis rectangular type gas laser oscillator, a plurality of rows of discharge electrodes 4, 4-1, 4-2 are disposed in the direction of a gas flow 21, and besides resonator mirrors 1 and 2 whose width is larger than that of the plurality of rows of discharge electrodes 4, 4-1, and 4-2 are disposed. For example, while plurality of rows of cathode pins 4, 4-1, 4-2... are disposed in the direction of the gas flow 21 of a cathode holding plate 5, a total reflector 1 and a partial reflector 2, which are larger in width than the rows of discharge electrodes 4, 4-1, 4-2..., are disposed on the position where they face each other to interpose an anode plate 3 and the cathode holding plate 5. Thus, glow discharge areas 7 between the plurality of rows of cathode pins 4, 4-1, 4-2... and the anode plate 3 become continuous and elongated in the direction of the gas flow 21, so that wide laser beams are emitted perpendicularly to the direction of the gas flow 21.

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