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1. 发明专利

JPS57655A ELECTROPHOTOGRAPHIC RECEPTOR 失效
公开(公告)号：JPS57655A
公开(公告)日：1982-01-05
申请号：JP7422380
申请日：1980-06-04
申请人： HITACHI LTD , HITACHI KOKI KK
发明人： TAMAHASHI KUNIHIRO , HOSOYA AKIRA , KONUMA SHIGEHARU , TOMITA SADAMI
IPC分类号： G03G5/00 , G03G5/043 , G03G5/08
摘要： PURPOSE:To obtain an electrophotographic receptor capable of forming a printing plate with superior endurance using a light source with longer wavelengths than 0.6mum by forming a carrier transferring layer as the uppermost layer with a specifically blended Se-Zn alloy. CONSTITUTION:On an electrically conductive substrate 1 such as an Al plate a carrier generating layer (CGL)2 made of Se-Te alloy and a carrier transferring layer (CTL)3 made of Se-Te alloy are formed to obtain an electrophotographic receptor. At this time, the CTL is made of Se-Te alloy contg. 4-28wt% Zn. The receptor has superior hardness and high sensitivity even to light with longer wavelengths than 0.6mum, so it is suitable for use as the receptor of a device using He-Ne laser with 0.6333mum wavelength.

2. 发明专利

JPS6335981B2 失效
公开(公告)号：JPS6335981B2
公开(公告)日：1988-07-18
申请号：JP12236380
申请日：1980-09-05
申请人： HITACHI SEISAKUSHO KK , HITACHI KOKI KK
发明人： HOSOYA AKIRA , KONUMA SHIGEHARU , TAMAHASHI KUNIHIRO , TOMITA SADAMI
IPC分类号： G03G5/00 , G03G5/082

3. 发明专利

JPS58131114A ELECTROMAGNETIC FILTER 失效
公开(公告)号：JPS58131114A
公开(公告)日：1983-08-04
申请号：JP1152682
申请日：1982-01-29
申请人： HITACHI LTD
发明人： ITOU KAZUYUKI , EBARA KATSUYA , KUBOTA SHIYOUJI , TAKAHASHI SANKICHI , TOMITA SADAMI , TAKASHIMA YOSHIE
IPC分类号： B01D35/06 , B03C1/034
摘要： PURPOSE:To increase the collecting efficiency of magnetic fine particles in a liquid and to facilitate the washing thereof, by a method wherein a magnetic fine wire with a small cross area is molded into a screw form and the interior of the filter tower of an electromagnetic filter is filled with the molded screw shaped magnetic fine wire while an electromagnetic coil is arranged around the filter tower. CONSTITUTION:A magnetic fine wire with a small cross area, for example, having a short diameter of about 30mum and a long diameter of about 70mum is formed into a screw form having a diameter of, for example, about 2mm. and the interior of a filter tower 2 is filled with this screw shaped fine wire 5 through dispersing plates 4, 5. A liquid containing magnetic fine particles is introduced into the filter tower 2 from an arranged pipe 10a and magnetic fine particles are collected by the magnetic fine wire 1 under the action of a high gradient magnetic field while the treated liquid is discharged from an arranged pipe 10b. By this mechanism, the magnetic fine wire holds strength and the interior of the filter tower 2 can be uniformly filled therewith while collected magnetic fine particles can be easily removed out of the filter tower 2 from an arranged pipe 10d by extruding the liquid in the filter tower 2 to the outside at a high flow speed in such a state that values 20a, 20b are closed and valves 20c, 20d are opened.

4. 发明专利

JPS5852812A MANUFACTURE OF WOUND IRON CORE FOR TRANSFORMER 失效
公开(公告)号：JPS5852812A
公开(公告)日：1983-03-29
申请号：JP14952781
申请日：1981-09-24
申请人： HITACHI LTD
发明人： SANO MASAAKI , MITSUOKA KATSUYA , TOMITA SADAMI
IPC分类号： H01F1/14 , C22C45/02 , H01F27/25 , H01F41/02
摘要： PURPOSE:To reduce the iron loss and magnetostriction in the winding direction and form a wound iron core for transformer having a low noise level, by winding an amorphous alloy tape while applying a specific tension in the winding direction. CONSTITUTION:An amorphous alloy tape 3 is taken out from a reel 1 and wound on a reel 2. After the tape 3 is fixed, a weight 6 attached to a roll 5 in order to add a predetermined tension is regulated and the roll 5 is placed on the tape 3. A damping force is regulated so as to correspond to the tension by varying the distance between permanent magnets 9, 9'. In order to maintain the tension at a predetermined value at all times, the vertical movement of the roll 5 is monitored by means of a differential transformer, and the number of revolutions of a motor 7 is controlled through a driving power source by a feedback system. The tension in winding is selected to be 2-8kg/cm . Thereby, it is possible to reduce both magnetostriction and iron loss. For example, when the noise level was measured with respect to a wound iron core on which a tension of 6kg/cm had been added, the noise level was about 1/3 that of a wound iron core on which no tension had been applied. Accordingly, it is possible to obtain a wound iron core having a low noise level.

5. 发明专利

JPS5735633A Heat treatment of metallic thin strip 失效
标题翻译：金属薄条热处理
公开(公告)号：JPS5735633A
公开(公告)日：1982-02-26
申请号：JP10832280
申请日：1980-08-08
申请人： Hitachi Ltd , Hitachi Metals Ltd
发明人： SUZUKI HIDEO , TOMITA SADAMI
IPC分类号： H01F1/153 , C21D6/00 , C21D9/52 , C22C45/02 , C22F1/00
CPC分类号： C21D9/52
摘要： PURPOSE:To improve the magnetic flux density and square ratio of a metallic thin strip and reduce its coercive force by heat treating the thin strip wherein at least one face of an Fe-No-Si-B alloy is amorphous, at temps. near differential absorption heat initiation temp. CONSTITUTION:A thin strip of 6-14 B atom %, 8-14 Si, 4-12 Ni, the balance Fe, wherein at least one face is amorphous is heat treated at the temp. near the differential absorption heat initiation temp. of the heating differential heat quantity curve of said metal. This thin strip can be produced by, for example, a single roll method or the like, and the face where no cracking occurs at 180 deg. bending is amorphous. The differential absorption and release heat initiation temps. Ta, Tb of the typical heating differential heat quantity curve of said alloy thin strip vary slightly with the compositions of the thin strip, but the heat treatment temp. is set at near the Ta, that is, Ta+ or -25 deg.C. Thereby, coercive force is increased and magnetic density is decreased at high temps., and there is no marked effect at the heat treatment at temps. lower than these.
摘要翻译：目的：为了提高金属薄带的磁通密度和平方比，通过热处理Fe-No-Si-B合金的至少一面是非晶态的薄带来减少其矫顽力。近差分吸收热开始温度构成：将6-14B原子％，8-14Si，4-12Ni，余量为Fe的薄带，其中至少一面是无定形的在温度下进行热处理。接近差示吸收热开始温度。的所述金属的加热差热量曲线。该薄带可以通过例如单辊法等形成，也可以在180度不发生龟裂的面。弯曲是无定形的。差分吸收和释放热引发温度。所述合金薄带的典型加热差热量曲线的Ta，Tb随薄带组成而略有变化，但热处理温度。设在Ta附近，即Ta +或-25℃。因此，在高温下，矫顽力增加，磁密度降低，在温度下的热处理没有明显的效果。低于这些。

6. 发明专利

JPS56126841A MANUFACTURE OF PHOTOSENSITIVE DRUM MADE OF SELENIUM AND THE LIKE ELEMENT 失效
公开(公告)号：JPS56126841A
公开(公告)日：1981-10-05
申请号：JP3035780
申请日：1980-03-12
申请人： HITACHI LTD
发明人： TOMITA SADAMI , TAMAHASHI KUNIHIRO
IPC分类号： G03G5/082
摘要： PURPOSE:To enhance effective use rate of a photoconductor, such as selenium and to save energy consumption in manufacture of a selenium type electrophotographic receptor, by bringing a conductor into contact with the melt of said photoconductor to prepare a photosensitive layer. CONSTITUTION:A conductor of aluminum drum 1 is controlled in temperature with mandrel 2 having a cooling medium recirculated in it, and is allowed to contact with selenium or the like molten by heating with heater 12 in such a manner that pressure rod 7 is inserted into selenium vessel 6 to push molten selenium 4 out of a slit up to a given level and to form molten tongue 5, thus permitting a desired thickness of a glassy selenium layer to be formed on the conductor surface, effective use rate to be raised to 4 times, power consumption to be reduced to 1/5, and a photoreceptor uniform in film thickness, free from surface defects, and superior in electrophotographic characteristics to be obtained.

7. 发明专利

JPS55165261A ROLL DEVICE FOR RAPID COOLING OF MOLTEN METAL 失效
公开(公告)号：JPS55165261A
公开(公告)日：1980-12-23
申请号：JP7358279
申请日：1979-06-13
申请人： HITACHI LTD , HITACHI METALS LTD
发明人： SUZUKI HIDEO , IKUTA ISAO , TOMITA SADAMI , ISHIHARA JIYOU , TAMAMURA TAKEO
IPC分类号： B22D11/06
摘要： PURPOSE:To prevent flying of molten metal and make the shape of frozen metal thin strip surface even by providing the coating layer of metal of good wettability with molten metal on the surface of a roll made of metal of good heat conductivity. CONSTITUTION:The surface of a roll 6 of metal of good heat conductivity such as copper or copper alloy is coated with material which is difficult to be abraded by molten metal of iron, chromium, nickel or their alloys by such a method as chemical plating. When this roll 6 is rotated in the arrow direction and molten metal 3 is spouted from the end of a nozzle 2 onto the surface thereof, the fyling of the molten metal is prevented and the cooling capacity of the roll is improved as well by the improvement in adhesiveness. The surface roughness and the sectional shape of the resultant amorphous metal thin strip 4 may be considerably improved.

8. 发明专利

JPS5536029A METHOD AND DEVICE FOR TAKINGGUP THIN MAGNETIC METAL BELT 失效
公开(公告)号：JPS5536029A
公开(公告)日：1980-03-13
申请号：JP10849778
申请日：1978-09-06
申请人： HITACHI LTD , HITACHI METALS LTD
发明人： SUZUKI HIDEO , TOMITA SADAMI , IKUTA ISAO , ISHIHARA JIYOU
IPC分类号： B21C47/02 , B22D11/06
摘要： PURPOSE:To enable continuous high speed taking-up by guiding the molten metal spouting out on the outer circumference of cooling roll to the rotating magnet by shifting magnetic field. CONSTITUTION:The molten metal 3 brought to molten state in the nozzle 1 spouts out from the opening 10 and lead onto the cooling roll rotaing at a high speed and solidifies by rapid cooling. The metallic material that changed into a thin belt is stripped off from the surface of the cooling roll 4 by centrifugal force and the gas sputing from the nozzle 5 and blown up. Then, the thin metal belt is attracted to the end portion of a group of magnets 8 that generate shifting magnetic field through the guide plate 7 successively from the tip by its own weight and guided by the group of magnets. Further, it is sent to ward the take-up bobbin 9 in conformity to the change of shifting magnetic field and attracted by the take-up bobbin 9 of electromagnetic structure and continuously taken up at a desired speed.

9. 发明专利

JPS5511315A MAGNETIC HEAD AND CORE MATERIAL AND MANUFACTURING METHOD 失效
公开(公告)号：JPS5511315A
公开(公告)日：1980-01-26
申请号：JP8303878
申请日：1978-07-10
申请人： HITACHI LTD
发明人： NARUSHIGE SHINJI , SATOU MITSUO , TOMITA SADAMI , HAYASHI MASAAKI
IPC分类号： H01F1/147 , G11B5/127 , G11B5/255 , H01F1/14
摘要： PURPOSE:To provide abrasion-resisting permalloy, by combining fixed proportions Ni-Fe alloy, metallic elements having energy smaller than the standard carbide forming free energy, and carbon. CONSTITUTION:Ni-Fe alloy is added with one or more elements that form a carbide more easily than iron, that is, elements having the standard carbide forming free energy smaller than DELTAG deg., the standard carbide forming free energy of iron, for example, Zr, Ti, Mn, together with carbon. From consideration of the magnetic characteristics and processing of magnetic materials, the following composition is used: Ni 55-85 weight %, the total amount of elements that form a carbide more easily than iron 0.5-10 weight %, carbon 0.01-0.3 weight %, and iron for the remainder. By this, it is possible to increase abrasion resistance without impairing magnetic characteristics and processing facility.

10. 发明专利

JPS5263709A FILM MAGNETIC HEAD OF MAGNETIC RESISTANCE EFFECTIVE TYPE 失效
公开(公告)号：JPS5263709A
公开(公告)日：1977-05-26
申请号：JP13929475
申请日：1975-11-21
申请人： HITACHI LTD
发明人： MAEDA KUNIHIRO , TOMITA SADAMI
IPC分类号： G11B5/39
摘要： PURPOSE:To attain the elevation of the efficiency of the magnetic resistance effect, and to increase the read output, maintaining the crossing angle of magnetism and current at 45 deg., by not only forming the permanent magnet part in the magnetic part material, but also installing the magnetic resistance part material.

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