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41. 发明专利

JPH06336338A PICKING DEVICE BY LINEAR MOTION SYSTEM 失效
公开(公告)号：JPH06336338A
公开(公告)日：1994-12-06
申请号：JP12566793
申请日：1993-05-27
申请人： HITACHI LTD
发明人： TOMIOKA YOSHIHARU , NAKAMURA TOMIO
IPC分类号： B65G47/08 , B65G59/06
摘要： PURPOSE:To save a space and improve maintainability as compared with a cut out device of rotational system by using an air cylinder in a driving part of a picking mechanism. CONSTITUTION:A rack 2 for storing a small article 3 is set up aside a carry out equipment 1, and an air cylinder 4 is set up in an opposite side to the carry out equipment 1 of the rack 2. A pusher 5 for extruding the small article is connected to the point end part of a rod of the air cylinder 4. The air cylinder 4 of linear motion system, particularly with no space required in a lower part of the rack 2, is used. In this way, the lower part space of the article storing rack 2 can be narrowed smaller than that of a cut out device by rotational system. A system with easy maintenance is obtained.

42. 发明专利

JPH05237493A 失效
公开(公告)号：JPH05237493A
公开(公告)日：1993-09-17
申请号：JP4095392
申请日：1992-02-27
申请人： HITACHI LTD , HITACHI TSUCHIURA ENG KK
发明人： NAKAMURA TOMIO , OKAJIMA HIROAKI
IPC分类号： B01F7/00 , C02F3/16
摘要： PURPOSE:To use natural water flow effectively and surely retain constant power without running cost by using a water wheel as a source for aeration work, etc., in a lake and marsh cleaning apparatus to clean water in lakes and marshes by aeration, etc. CONSTITUTION:In the case that aeration, etc., of water in a storage pond is carried out to improve the quality of water in lakes and marshes, a water wheel is used as a power source for the aeration work, etc. In other words, the natural water flow is used to provide rotary force to the water wheel 1. The rotary force of the water wheel 1 is transmitted to propellers 4 for stirring installed in the surfacial water layer under water through the combinations of a plurality of shafts 2 (a-c) and gears 3 (a-e). Consequently, the propellers 4 for stirring are rotated and water in the deep water layer is pumped and circulated to the surfacial water layer and thus water is cleaned. As a result, the contained in energy the natural water flow is used effectively.

43. 发明专利

JPH0248980B2 失效
公开(公告)号：JPH0248980B2
公开(公告)日：1990-10-26
申请号：JP4077982
申请日：1982-03-17
申请人： HITACHI LTD
发明人： OOTANI JUICHI , NAKAMURA TOMIO , KAWADE TATSUO , MATSUISHI HIROMI
IPC分类号： G01B5/28 , G11B5/84

44. 发明专利

JPH0158443B2 失效
公开(公告)号：JPH0158443B2
公开(公告)日：1989-12-12
申请号：JP95782
申请日：1982-01-08
申请人： HITACHI LTD
发明人： NAKAMURA TOMIO , OOTANI JUICHI , KAWADE TATSUO
IPC分类号： G11B5/84 , G01B17/00 , G01B21/00 , G01B21/02 , G01B21/08 , G11B33/10

45. 发明专利

JPS6321272B2 失效
公开(公告)号：JPS6321272B2
公开(公告)日：1988-05-06
申请号：JP6351585
申请日：1985-03-29
申请人： HITACHI LTD
发明人： TAKEUCHI YOSHINORI , TANAKA KATSUYUKI , OTAKA AKIKO , NAKAMURA TOMIO , SAITO SUKEO
IPC分类号： G11B21/21 , G11B5/60

46. 发明专利

JPS6187209A Magnetic head 失效
标题翻译：磁头
公开(公告)号：JPS6187209A
公开(公告)日：1986-05-02
申请号：JP21250785
申请日：1985-09-27
申请人： Hitachi Ltd
发明人： KATO AKIRA , ISHIHARA HEIGO , KATO YOSHIKI , IMAMURA MASAAKI , NAKAMURA TOMIO
IPC分类号： G11B5/60 , G11B5/187 , G11B5/255
CPC分类号： G11B5/187
摘要： PURPOSE:To eliminate a slide breakdown and abnormal abrasion between a magnetic head and recording medium by treating the recording medium facing surface of the magnetic head so that its surface energy is less than a specific value. CONSTITUTION:A surface treated film 3 having film thickness (d) is formed on the recording medium facing surface 2 of a cre 1. A surface treating agent is applied over the recording medium facing surface of the magnetic head to reduce the surface energy of the recording medium facing surface of said mag netic head below 40dyne/cm. Consequently, the dislocation of a lubricant from the recording medium and the sticking of foreign matter are reduced, and the life of the recording medium and magnetic head is improved.
摘要翻译：目的：通过处理磁头的面向记录介质的表面，使其表面能量小于特定值，消除磁头和记录介质之间的滑动破坏和异常磨损。构成：具有膜厚度（d）的表面处理膜3形成在cre 1的记录介质对向表面2上。表面处理剂施加在磁头的记录介质面对表面上，以降低表面能将所述磁头的记录介质面向表面低于40dyne / cm。因此，减少了润滑剂从记录介质的脱位和异物的粘附，从而提高了记录介质和磁头的使用寿命。

47. 发明专利

JPS60223088A MAGNETIC HEAD SLIDER 失效
公开(公告)号：JPS60223088A
公开(公告)日：1985-11-07
申请号：JP6351585
申请日：1985-03-29
申请人： HITACHI LTD
发明人： TAKEUCHI YOSHINORI , TANAKA KATSUYUKI , OTAKA SATOKO , NAKAMURA TOMIO , SAITOU SUKEO
IPC分类号： G11B21/21 , G11B5/60
摘要： PURPOSE:To attain the external control of the negative buoyancy by adding a negative buoyance control means to a negative buoyancy reduction means set at a floating surface part where the negative buoyance is produced. CONSTITUTION:A venthole 6 serving as a negative buoyancy reduction means is drilled at a negative pressure pocket part enclosed by a flat slider part 2 and a cross rail part 4. An electrostrictive element 8, for instance, is provided on the upper surface part of the venthole 6 as a negative buoyancy control means. A power supply 9 is connected to the element 8 via a switch 10. The negative buoyance is minimized in a start and stop modes and at a low speed mode to float a head quickly. Therefore the switch 10 is turned on to deform the element 8 and to open the venthole 6. The switch 10 is turned off at a steady operation speed to reset the element 8 to its original form. Then the venthole 6 is closed to produce the negative buoyancy. Thus the variance of the floating degree is minimized for the head.

48. 发明专利

JPS60136920A MANUFACTURE OF MAGNETIC DISC 失效
公开(公告)号：JPS60136920A
公开(公告)日：1985-07-20
申请号：JP24392683
申请日：1983-12-26
申请人： HITACHI LTD
发明人： KATOU AKIRA , NAKAMURA TOMIO , YASHIKI HIROSHI , OOTANI YUUICHI , KATOU YOSHIKI
IPC分类号： G11B5/84 , B24B37/00
摘要： PURPOSE:To obtain a magnetic disc excellent in the sliding proof characteristic and the magnetic characteristic by imbedding a reinforcement member to an aluminum base with a surface plate turned while the aluminum base is processed with the surface plate so as to form a magnetic film to the aluminum base. CONSTITUTION:After an aluminum base 1 is arranged between upper and lower surface plates 7 with polishing cloth 6 adhered thereto via a deflection carrier 8, the aluminum base 1 is pressed and then the upper/lower surface plates 7 are turned while a solution including the reinforcing material 3 is supplied continuously from a solution supply pipe 10. The reinforcing material 3 is imbedded to the surface of the aluminum base 1 in this way. After the surface of the aluminum base 1 is rinsed, a magnetic paint 4 is coated. A magnetic disc is obtained by polishing and finishing the magnetic coating film to reach a prescribed thickness finally. Thus, the reinforcing material is fixed solidly and aggregation of the reinforcement, aggregation of magnetic powder around the reinforcement member are prevented, then the magnetic disc excellent in the sliding proof characteristic and magnetic characteristic is obtained.

49. 发明专利

JPS60101782A DISK PACK 失效
公开(公告)号：JPS60101782A
公开(公告)日：1985-06-05
申请号：JP21612384
申请日：1984-10-17
申请人： HITACHI LTD
发明人： NAKAMURA TOMIO , KAWADE TATSUO , SANO YOSHISUKE , MATSUSHIMA YUTAKA
IPC分类号： G11B23/03
摘要： PURPOSE:To prevent the generation of a crack at the lower cover of a pack case by arranging a cushion which is interposed between a hub and the lower cover at the outer circumference of the hub 12, and always separating the lower cover from the hub inside of the cushion. CONSTITUTION:The cushion 6 is fitted to the lower cover 2 at the outer circumference part of the hub 12. The lower cover 2 and hub 12 are always separated inside of the cushion 6. When a fitting screw 3 is clamped, the inside part of the lower cover 2 is lifted by the fitting screw 3 to curve upward. The lower cover 2, however, does not engage the hub 12 inside of the cushion 6, so the lower cover 2 deforms about a part 2b distant from its internal end as a fulcrum. Therefore, the stress applied to the lower cover 2 is dispersed over a wide range and cracking 18 becomes hard to occur. The maximum stress of the lower cover 2 is suppressed within a permissible range by allowing the upper end of the screw part 3b of the fitting screw 3 to abut on the lower end of a sleeve.

50. 发明专利

JPS5665334A MAGNETIC HEAD 失效
公开(公告)号：JPS5665334A
公开(公告)日：1981-06-03
申请号：JP13761179
申请日：1979-10-26
申请人： HITACHI LTD
发明人： NAKAMURA TOMIO
IPC分类号： G11B5/60 , G11B5/127
摘要： PURPOSE:To make it possible to assemble a single track type monolithic core magnetic head easily with high precision and also to eliminate the attenuation of a signal, by providing C type cores made of nonmagnetic materials so that the dummy gap and recording and reproducing gap will be aligned. CONSTITUTION:As for the magnetic head for magnetic disks, center core 2' among C type cores 2, 2' and 2' of the recording and reproducing head is dummy and has track width W2. While recording and reproducing gap G and dummy gaps DG form a straight line, cores 2 and 2' are bonded with glass at mating surface A of core block 3. Cores 2' are made of nonmagnetic ferrite, ceramics, etc. Angle error (alpha) between reference surface 7 and the gap surface is measured by using track width W2 of core 2 conventionally, but this invention improves the measurement precision greatly by (W4/W2) times by using width W4 of mating surface A for the measurement. Therefore, the attenuation of a signal due to angle error (alpha) can be reduced greatly.

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