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1. 发明专利

JPH03291821A HEAT-SENSITIVE SWITCH 失效
公开(公告)号：JPH03291821A
公开(公告)日：1991-12-24
申请号：JP5392190
申请日：1990-03-06
申请人： FUJITSU LTD
发明人： SAITO SHIGERU , BABA MASANORI , HANADA HIROTSUGU
IPC分类号： H01H37/32 , H01H37/52
摘要： PURPOSE:To make a heat-sensitive switch lightweighted and small sized and enhance its reliability by providing heat-sensitive function to a lead piece itself and making no need of adding an external heat-sensitive magnet. CONSTITUTION:A heat-sensitive switch has cantilever spring parts 45 with bimetal structure formed by laminating two kinds of metals having different thermal expansion coefficients and a pair of lead pieces 4 prepared by unitedly forming sealing parts 42 of the metal having the higher thermal expansion coefficient of the metals and terminal parts 43 with the cantilever spring parts 45. Or a heat-sensitive switch is composed of a sealing part of glass sealing metal consisting of sealing parts 62 and terminal parts 63, a pair of lead pieces in which each one end of heat-sensitive device 81 of a shape memory alloy is fixed, and a glass tube 5 which seals and holds the pair of the lead pieces on the opposite each other while keeping a prescribed gap between the lead pieces so as to bring the free ends of cantilever springs parts, which cause displacement by temperature increase, into a contact each other.

2. 发明专利

JPH03241000A PLATING DEVICE 失效
公开(公告)号：JPH03241000A
公开(公告)日：1991-10-28
申请号：JP3758990
申请日：1990-02-19
申请人： FUJITSU LTD
发明人： SAITO SHIGERU , HANADA HIROTSUGU , BABA MASANORI , KONDO KOICHI
IPC分类号： C25D21/10
摘要： PURPOSE:To make treatment velocity of plating high-speed and to uniform treatment by imparting vibration to the material to be plated by a vibration member and partially controlling vibration by an absorption member having a prescribed shape. CONSTITUTION:A plating tank 2 is provided in a tank 7. Water 8 of a vibration transfer medium is filled in the tank 7 and a vibration member 9 is provided to the bottom part. An absorption member 10 is arranged between the plating tank 2 and a vibration member 9. The absorption member 10 is formed into a shape for absorbing, interrupting and weakening vibration in the outer circumferential part of the material 5 to be plated and for uniforming plating thickness in the whole face. When this shape is changed, plating thickness is partially controlled. The distance between the vibration member 9 and the material 5 to be plated is made changeable in a range within the wavelength of ultrasonic wave and thereby plating thickness is controlled. Vibration energy of ultrasonic wave of the vibration member 9 is imparted on the surface of the material 5 to be plated and thins the boundary film wherein metallic ions are made defective in the boundary face between the material 5 to be plated and plating liquid 3. Therefore the metallic ions dissolved in the plating liquid are easily supplied to the material 5 to be plated. Plating treatment is made high-speed.

3. 发明专利

JPH0393119A MANUFACTURE OF KEYBOARD 失效
公开(公告)号：JPH0393119A
公开(公告)日：1991-04-18
申请号：JP23010489
申请日：1989-09-05
申请人： FUJITSU LTD
发明人： YAMAGUCHI TOSHIO , HANADA HIROTSUGU , FUKAI MASAO , ENDO TAKAO
IPC分类号： G06F3/02 , H01H11/00
摘要： PURPOSE:To manufacture a keyboard economically without degrading its quality by cutting a connecting housing to fit in a region in which the arrangement of a plurality of pushing buttons is the same as that of guiding holes of the connecting housing and setting the cut connecting housing. CONSTITUTION:A large number of guiding holes 4c which are for guiding up- and down-movement of pushing buttons and arranged in one row or a plurality of rows in a prescribed pitch forms a connecting housing 21 is prepared and a keyboard 31 is prepared by cutting the connecting housing 21 to fit in the regions A-C where the arrangement of a plurality of the pushing buttons is the same as that of guiding hole 4c of the connecting housing 21 and setting the cut connecting housing in these regions. In this way, a large number of pushing button guiding holes 4c arranged in one row or a plurality of rows in a prescribed pitch forms a connecting housing 21 and the connecting housing 21 is so cut as to contain a plurality of pushing button guiding holes 4 and to fit in a prescribed region of a keyboard 31 which is a product among various kinds and small quantity and the cut connecting housing 21 is used and thus conventional troublesome process for mounting housings, formed individually corresponding to the production of various kinds and small quantity of keyboards, one by one is moderated.

4. 发明专利

JPH02245375A MARKING METHOD 失效
公开(公告)号：JPH02245375A
公开(公告)日：1990-10-01
申请号：JP6864689
申请日：1989-03-20
申请人： FUJITSU LTD
发明人： YAMAGISHI TADASHIGE , YAGI MASUO , HANADA HIROTSUGU , MAEDA JUN
IPC分类号： B41F17/28 , B41M5/26 , B41M5/382 , H01H11/00
摘要： PURPOSE:To efficiently apply a marking of characters or symbols on products of a multikind and small lot without deteriorating the smoothness of a marking surface by a method wherein a medium applied with a thermally migrating ink is brought into close contact with the marking surface, a vibration energy is transmitted to the medium, and the ink is heated to a thermally transition temperature by a frictional heat. CONSTITUTION:A predetermined key top 7 is disposed downward of an ultrasonic generator 2. A film 1 is moved downwards by a drive mechanism to be brought into contact with a marking surface 7a of the key top 7. The ultrasonic generator 2 is moved downwards to press the film 1 to make the film 1 in close contact with the marking surface 7a. Then, ultrasonic waves are generated, and an ultrasonic vibration energy is transmitted to the film 1. A frictional heat is generated by this energy, thereby heating the thermally transition ink on the film 1 to a thermally transition temperature. The ink reaching the thermally transition temp. melts and transfers to the key top 7 which is in close contact therewith, furthermore penetrating into the key top 7. Then, the marking is completed.

5. 发明专利

JPH02127081A HEAT TRANSFER INK RIBBON 失效
公开(公告)号：JPH02127081A
公开(公告)日：1990-05-15
申请号：JP28067388
申请日：1988-11-07
申请人： FUJITSU LTD
发明人： MATSUDA GENICHI , HANADA HIROTSUGU , SUGII TAKESHI
IPC分类号： B41M5/392 , B41M5/30
摘要： PURPOSE:To suppress generation of shaggy and to reduce printing energy by providing a heat-fusible ink layer made of dye, powder-containing filler having 0.1cal/cm.sec or more of thermal conductivity and heat-fusible material solid at ambient temperature on a ribbon base material. CONSTITUTION:A heat-fusible ink layer 3 made of dye, filler containing powder having 0.1cal/cm.sec or more of thermal conductivity and heat-fusible material solid at ambient temperature is laminated on a ribbon base material 1 through an adhesive layer 2 to form a heat transfer ink ribbon. The powder having the conductivity includes, for example, silver, cupper, gold, tungsten, nickel, or iron powder. When the obtained heat transfer ink ribbon is used, stringiness is suppressed to improve the quality of printing, and printing energy is reduced to accelerate a printing speed.

6. 发明专利

JPH01281581A DATA LOGGER CARD 失效
公开(公告)号：JPH01281581A
公开(公告)日：1989-11-13
申请号：JP11087488
申请日：1988-05-07
申请人： FUJITSU LTD
发明人： HANADA HIROTSUGU , ENDO TAKAO , TAKAI SHIGERU
IPC分类号： G06F17/40
摘要： PURPOSE:To record the measuring values of various sensors in accordance with the lapse of time and to miniaturize and lighten the title data logger card by storing a measuring value of a built-in miniaturized sensor or another sensor in a memory integrating circuit every output of a time signal from a timer circuit. CONSTITUTION:The data logger card is constituted of a microsensor 5 built in a normal IC card, a memory integrating circuit 6, a timer circuit 42 for outputting a time signal every previously set time, a miniaturized sensor 1A, and a connector 7 for connecting another sensor 1B. A gate circuit 41 is connected between the connector 7 and the processor 5 and a control circuit 43 opens the circuit 41 every output of a time signal from the circuit 42, and after the lapse of a fixed time, closes the circuit 41. Thereby, the an output signal from the sensor 1A or 1B is inputted to the processor 5 only in the opening period of the circuit 41 and the measuring value is stored in the circuit 6. Consequently, the measuring values of respective sensors can be recorded in accordance with the lapse of time and the data logger card can be miniaturized and lightened.

7. 发明专利

JPH01256007A MAGNETIC RECORDING AND REPRODUCING METHOD 失效
公开(公告)号：JPH01256007A
公开(公告)日：1989-10-12
申请号：JP8384588
申请日：1988-04-05
申请人： FUJITSU LTD
发明人： KAJITANI HIROSHI , TANJI SHIGEO , HANADA HIROTSUGU
IPC分类号： G11B5/09
摘要： PURPOSE:To improve the peak shift without using a high voltage drive power supply by carrying a recording medium at a small carrying speed at a recording smaller than the carrying speed at reproduction and writing a signal by a square wave having a write clock period inversely proportional to the carrying speed. CONSTITUTION:Since the length of a magnetic medium moving under the recording head is proportional to the carrying speed within the leading time of a recording current, the width where the direction of magnetization is inverted on the magnetic medium, that is, the magnetization transition width is proportional to the carrying speed of the magnetic medium. When the carrying speed at recording is decreased, the deviation of the center of the magnetization transition width on the magnetic medium (reproduction pulse generating position) from a prescribed position is small in proportion to the speed. Thus, the peak shift at reproduction produced corresponding to the difference of said deviation due to the difference from the magnetization direction is reduced. Moreover, the clock period is extended by the decreased carrying speed to obtain a standard value of bit density on the recording medium, then the recording data is read by a conventional card reader/writer and the loss of compatibility of data is avoided.

8. 发明专利

JPS6442008A MANUFACTURE OF MAGNETIC HEAD 失效
公开(公告)号：JPS6442008A
公开(公告)日：1989-02-14
申请号：JP19840687
申请日：1987-08-07
申请人： FUJITSU LTD
发明人： TANJI SHIGEO , KAJITANI HIROSHI , YANAGISAWA MASANOBU , HANADA HIROTSUGU
IPC分类号： G11B5/23
摘要： PURPOSE:To eliminate a need for step difference working by bonding a core half body with the other half body in a manner that a nonmagnetic gap spacer is inserted on the bonding surface of the front gap while a spacer made of a magnetic material of high permeability is inserted on the bonding surface of the rear gap. CONSTITUTION:The front gap-side bonding surface 11 of the core half body 1 for write core faces three pieces of the opposite half bodies over the entire core width with the gap spacer 3 in the center, and thus the front gap is formed. This gap acts as a wide write gap, while the part corresponding to the core width of the opposite core half body 2 for read acts as a gap for narrow read. The rear gap side bonding surface 12 is bonded with the opposite side core half bodies 2, 5a, 5b through the high permeability material. Therefore, magnetic flux passes through the rear gap without any magnetic loss, hence an excellent head characteristic can be obtained. As a result, man-hour is reduced in the production of the core half body 1, and the gap can be formed with high accuracy.

9. 发明专利

JPS63136306A MANUFACTURE OF MAGNETIC HEAD CORE 失效
公开(公告)号：JPS63136306A
公开(公告)日：1988-06-08
申请号：JP28100386
申请日：1986-11-26
申请人： FUJITSU LTD
发明人： YANAGISAWA MASANOBU , TANJI SHIGEO , HANADA HIROTSUGU
IPC分类号： G11B5/127
摘要： PURPOSE:To facilitate the manufacture by forming a projection for specifying injection gap of an adhesives at least to one of 1st and 2nd ferrite members. CONSTITUTION:Plural tilt slots 23a are formed to a ferrite member 23 so as to eliminate the unnecessary part above the ferrite member 22 and to specify the width of a magnetic gap 2. After the unnecessary part above the ferrite member 16 is removed, the tilt slot 18a is formed to the ferrite member 18 to split a magnetic gap 4. In the adhered ferrite member 24, a projection 21a of the ferrite member 23 is pressed into contact onto the left side of the ferrite member 18, the adhesives 6 is injected in the gap to adhere the ferrite members 23, 16 and to incorporate them. Then in the ferrite member 24, the undesired part between the lower face of the ferrite member 18 and the slot 14a and the undesired part between the lower face of the ferrite member 23 and the slot 11a are removed and the result is split by including a R/W magnetic gap 2 and a couple of erasure magnetic gaps 4. Thus, the productivity is improved.

10. 发明专利

JPS6297112A MAGNETIC HEAD 失效
公开(公告)号：JPS6297112A
公开(公告)日：1987-05-06
申请号：JP23690685
申请日：1985-10-23
申请人： FUJITSU LTD
发明人： YANAGISAWA MASANOBU , MIURA TAKASHI , HANADA HIROTSUGU , TANJI SHIGEO
IPC分类号： G11B5/23 , G11B5/127
摘要： PURPOSE:To facilitate the production of a magnetic head by forming a groove (cut) over the total length at least at one of both sides of the end part of a magnetic head core in its width direction and filling said groove with a non- insulated material. CONSTITUTION:An R/W core 22 contains a pair of sloping grooves 25 into which a part of the molten glass is filled to set the length (l) of an R/W head gap 12 and a groove (cut) 26 into which the molten glass is partially filled to reduce the width of the head gap forming surface. While an erasion core 23 contains a sloping groove 27 into which the molten glass is partially filled to set the length l1 and the space l2 of an erasion head gap 14 and a groove (cut) 28 into which the molten glass is partly filled to reduce the width of the head gap forming surface. Both the width w1 of the groove 28 is approximately equal to the width of the groove 26 and both grooves 26 and 28 are set equally at a single side of the head gap forming surface in its width direction.

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