baber/WOPTO huggingface dataset:
Patent JP-S61205256-A (JP)
Title: Production of 4-formylindole derivative
Inventor: MATSUMOTO MASAKATSU
IPC: C07D209/00
Filed: 1985-03-08
Abstract: PURPOSE:To obtain inexpensively and simply the titled compound useful as a raw material for synthesizing a 4-position substituted indole alkaloid, by desufurizing oxidatively a 4,5,6,7-tetrahydroindole derivative easily obtainbale from cyclohexadione. CONSTITUTION:A 4,5,6,7-tetrahydroindole dericative [e.g., 5-bromo-4-(1,3-dithian-2- yl)-4-hydroxy-4,5,6,7-tetrahydroin-dole, etc.] shown by the formula I (X is H, or halogen; R is amino-protecting group; R<1> is aryl, or alkyl; R<2> is arylthio, alkylthio, arylsulfinyl, alkylsulfinyl, or R<1> and R<2> form ring) is oxidatively desulfurized, to give a 4-formylindole derivative [e.g., 4-(1,4-dithian-2-yl)-1-p- toluenesulfonylindole, etc.] shown by the formula II. EFFECT:A short process.
Patent JP-S61204357-A (JP)
Title: Copper foil excelling in flexibility
Inventor: TSUJI MASAHIRO
IPC: B21C37/02
Filed: 1985-03-08
Abstract: PURPOSE:To obtain copper foil exelling in flexibility and used for printed wiring boards, sheet coils, etc., by subjecting electrolytic copper foil to cold working at a specific draft and above or further to heat treatment. CONSTITUTION:The electrolytic copper foil is cold-worked >=10% draft, preferably at >=20%, or is further heat-treat to produce the desired copper foil with excellent flexibility. This copper foil is improved in defects of conventional electrolytic copper foil and rolled copper foil and it also excels in all the characteristics required of it, such as electric conductivity, mechanical strength, flexibility, accuracy of plate thickness, smoothness, and price, Accordingly this copper foil is suitably used as the one for electrical and electronic equipment and, besides, it can be inexpensively manufactured.
Patent JP-S55147038-A (JP)
Title: Electronic circuit
Inventor: ISOGAI HIDEAKI
IPC: G11C11/415
Filed: 1979-04-12
Abstract: PURPOSE: To obtain the CSW of high speed operation, by inserting the transistor (TR) flowing temporarily current to the first TR to the collector circuit of the second TR of the current switch CSW circuit consisting of the first and second TR.  
     CONSTITUTION: When the input voltage V i  is higher in level than the reference voltage V s , TRT 1  is ON and TRT 2  is OFF, and when the voltage V i  is at L level, TRT 1  is OFF and TRT 2  is ON. At the leading of the output voltage V o  in this case, a current flows to TRT 2  through the emitter and base of TRT 3  and TRT 3  is also ON and the collector current flows in the collector of TRT 1  during leading. Since this charges the collector capacitance of TRT 1  rapidly through the load R 1 , the leading of the output voltage is steep. When TRT 1  is ON, accordingly the voltage V o  falls from H to L, the charge of the collector capacitance of TRT 1 , T 2  is quickly discharged through the ON-resistance of TRT 1 , the delay in the trailing of output voltage is small, enabling high speed CSW operation. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-S58162981-A (JP)
Inventor: KIMURA SHIGEYOSHI
IPC: G02F1/1345
Filed: 1982-03-23
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-H05248992-A (JP)
Title: Measuring method for actuating point of optical switch
Inventor: MATSUNAGA TORU
IPC: G02F1/313
Filed: 1992-03-02
Abstract: PURPOSE:To provide quick measurability for the operating range of an optical switch dependent upon polarized wave by using the light in two differently polarized states whose rates of emergence are equal within a certain measuring time as an input light to the optical switch in any of the two sets of polarized states existing on the counter-poles on a Poincare sphere. CONSTITUTION:A nonpolarized light source 12 is prepared, for example, from a laser diode of Fabry-Perot type and an optical fiber with polarized wave dependency. The light from the source 12 is passed through a single mode optical fiber 3 and fed to a 2X2 photo-switch 4. In case the voltage to be impressed on a heater 43 while this optical switch 4 is on, is to be measured, an operating point measuring control device 10a varies the output voltage of a variable voltage source 5 through a bus 11 for controlling a measuring instrument, etc., and voltages VL, VH at the intersecting point of the light power from an output port B with half the reference value of the cross-talk amount are determined. The part from the voltage value VL to VH constitutes the operating point of the switch 4. When the switch 4 is off, monitor is changed over from Port B to Port A, and the procedure similar to the above is taken.
Patent JP-S61204910-A (JP)
Title: Magnet roll for magnetic brush development of dry electrophotography device and apparatus for manufacturing same
Inventor: NISHIKIORI MASAO
IPC: H01F7/02
Filed: 1985-03-08
Abstract: PURPOSE:To obtain a title magnet roll having less variability among products as well as low cost and clear picture by monolithically molding a shaft and a roll using a synthetic resin material having excellent magnetic characteristics as the molding material, and performing anisotropic magnetization during the molding. CONSTITUTION:Using molding material wherein a magnetic powder such as barium ferrite or strontium ferrite is kneaded by about 80-90% with a synthetic resin material having excellent magnetic characteristics, e.g., a synthetic resin base material such as polyamide or polyphenylene sulfide and an additive or activator or both are added as required, a shaft 11 and a roll 12 are monolithically injection molded, and the roll 12 is subjected to anisotropic magnetization when molded. This provides reduced processes and good yield, thus enabling low cost production. Further, the deviation of magnetic characteristics among the products is small because of injection molding, and when latent electron images are developed, there is no difference among products and the picture becomes clear.
Patent JP-H06262485-A (JP)
Title: Main spindle device
Inventor: OKAJIMA MASAKI
IPC: B23B19/02
Filed: 1993-03-05
Abstract: PURPOSE:To provide a main spindle device capable of eliminating a bad influ ence to machining accuracy due to fluctuating a spindle position according to changing a pre-load, in the main spindle device provided with a mechanism for changing the pre-load of a bearing. CONSTITUTION:In a main spindle device for moving a position of a spindle controlled and. also changing a pre-load of a bearing for supporting the spindle, by providing spindle position correcting means 1, 5 for correcting fluctuation of the spindle position due to changing the pre-load, even when the spindle position is fluctuated by changing the pre-load, machining accuracy is prevented from worsening in a machine tool or the like provided with the main spindle device.
Patent JP-H01220182-A (JP)
Title: System for writing floppy disk storing density
Inventor: HAMASAKA SUSUMU
IPC: G11B20/10
Filed: 1988-02-26
Abstract: PURPOSE:To eliminate the storing density designation of a floppy disk for a user by providing a floppy disk storing density writing mechanism. CONSTITUTION:When the storing density is written to the floppy disk, a floppy disk storing density writing mechanism 1 executes a special guard so that the user can not refer the written storing density. Then, the storing density is written in an area which is different from an area to be used by the user. Thus, when the floppy disk is initialized, the user can execute the initialization without designating the storing density of the floppy disk.
Patent JP-H01311442-A (JP)
Title: Method and device for rewrite of information recorded on magneto-optical recording medium
Inventor: KURONUMA AKIRA
IPC: G11B19/02
Filed: 1989-02-28
Abstract: PURPOSE:To efficiently perform the rewrite of information in a short time by providing a current setting circuit, and modulating and recording a light beam based on the level of a signal inputted to a light source at the time of performing the erasure of the information. CONSTITUTION:A current of no modulation from the current setting circuit 10 is inputted to the light source 5, and the information recorded on a medium 19 is erased. At this time, a controller 11 closes switches Sw 3 and 5, and opens a switch Sw 4. And the circuit 10 controls the power of the light beam of the light source 5 so as to go to a prescribed value based on the output of a photoelectric conversion element 4. When an erasure process is completed, the controller 11 opens the switch Sw 5, and holds an input signal to the light source 5. Next, the signal that changes between a level held corresponding to recording information and the level less than that is inputted to the light source 5. Furthermore, the medium 19 is irradiated by a modulated light beam, then, new information is recorded. In such a way, since the preset value of the circuit 10 is modulated in the rewrite of the information, it is performed in a short time.
Patent JP-S56143066-A (JP)
Title: Electronic device
Inventor: MATSUYAMA SHIGERU
IPC: G06F3/12
Filed: 1980-04-08
Abstract: PURPOSE:To easily make addition/subtraction between times and to display the result, by individually providing the time data designation means and hour data designation means, and printing the print format of the time and hour data differently. CONSTITUTION:Unit designation key group UK such as numeric key NK, function key FK, time and minute units designation key HM, time at AM designation key AM, and time at PM designation key PM are located on the keyboard KB. The signal KBS from KB is input to CPU. The memory which stores the control program performing control of the addition/subtraction of time in 60 notation through the change in the unit of time and the time or hour display, is incorporated in CPU. Various control signals according to key input are input to the register and operated at the operation unit ALU, the result is displayed on the display device DIS and printed on the printer PRT. The print is made with the format in time different  from that for hour, the progress of calculation can be known with the printed paper, and the meaning of calculation is easily interpreted.
Patent JP-H03247836-A (JP)
Title: Fitting structure for metal fittings
Inventor: KATO YOSHIO
IPC: E04B1/38
Filed: 1990-02-26
Abstract: PURPOSE:To contrive the strain of a beam to be eliminated without the requirement of welding by inserting the bolt section of a bolt for fitting U-shaped metal fittings into the hole section of a metal fittings, and by fixing the metal fittings, on a beam having a long slot with an engaging channel, and a bolt insertion hole in the upper surface. CONSTITUTION:A U-shaped metal-fittings fitting bolt 20 is inserted into the long slot 12 of the beam 10 of a horizontal structural member from an upper section, and the upper section of the handle section 21 of the bolt 20 is exposed on the upper surface of the beam 10. After that, the bolt section 22 of the bolt 20 is moved to a bolt insertion hole 13 from the long slot 12 and is inserted into the hole 13 and is projected on the upper surface of the beam 10. Then, the engaging surface 23 of the handle section 21 is engaged with the engaging channel 14 of the beam 10, and the bolt section 22 is guided directly under the insertion hole 13, and the positions of the bolt section 22 and the hole 13 are automatically met with each other. After that, the bolt section 22 projected on the upper surface of the beam 10 is inserted into the hole section 31 of metal fittings 30 and is spirally fitted on with a nut 32, and the metal fittings 30 are fitted on. As a result, work can be easily executed.
Patent JP-S58160911-A (JP)
Title: Zoom lens
Inventor: IKEMORI KEIJI
IPC: G02B15/177
Filed: 1982-03-19
Abstract: PURPOSE:To obtain a compact zoom lens which has short overall length and excellently compensated aberrations, by allowing a lens system consisting of a negative, a positive, a negative, and a negative lens group from an object side to meet specific requirements. CONSTITUTION:In the zoom lens system consisting of the negative lens groupI, positive lens group II, negatqive lens group III, and negative lens groupIfrom the object side, the 1st-the 3rd lens groupsI-III are moved independently of each other for zooming. The 1st and the 2nd groupsIand II are put closest to each other at a telephoto-side zooming position and thus its rear open aperture is decreased to make the constitution compact, compensating the aberrations of the telephoto side. Further, the 3rd and the 4th groups III and IV are put closest at a wide angle side zooming position to obtain a sufficient back focus. The focal lengths of the 1st and the 4th groupsIand IV are greater and less than the focal length of the zoom lens system to reduce aberrations resulting from the front group. Thus, the compact zoom lens system having the aberrations compensated excellently is obtained.
Patent JP-H09242731-A (JP)
Title: Special bolt for wooden building and metallic material for wooden building
Inventor: YOKOUCHI YASUHIDE
IPC: F16B35/04
Filed: 1996-03-01
Abstract: PROBLEM TO BE SOLVED: To more easily install a bolt and a nut to be used for a wooden building at execution work time in a special bolt for a wooden building and a metallic material for a wooden building which are used to join or reinforce wood in a wooden building. SOLUTION: In a special bolt 1 to be used to join or reinforce wood in a wooden building, the bolt is provided with a shaft part 2 to be embedded in wood, a head part 3 which is formed on one end of the shaft part 2 and is used for driving work when the shaft part 2 is embedded in wood and a screw part 4 which is formed on the other end of the shaft part 2 and protrudes from wood after the shaft part 2 is embedded in wood, and a fin-shaped protrusive part 5 to generate rotation stopping reaction against nut fastening torque applied from the screw part 4, is protrusively arranged around the shaft part 2.
Patent JP-S52129272-A (JP)
Title: Charge beam diameter control unit
Inventor: SHIBAYAMA AKINORI
IPC: H01J37/09
Filed: 1976-04-23
Abstract: PURPOSE: To reduce the discharge of reflection charge particle and scattering charge particle occurring at electronic beam diameter control time to deflection plate, etc., and thus to secure high-accuracy setting of the focusing position for electronic beam with no error at all. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-H10240176-A (JP)
Title: Display device
Inventor: HORI TAKASHI
IPC: G01D11/26
Filed: 1997-02-28
Abstract: PROBLEM TO BE SOLVED: To provide a display device which can achieve cost reduction. SOLUTION: This display device has a case 10, a display unit 11 which is installed in this case 10 and displays information according to a measurement amount or a fixed input signal, and a cover member 12 covering the front of the case 10 in which this display unit 11 is installed. On this cover member 12, a shielding part (opaque part) 121 for covering the front side of the case 10 except an area including a display part of the display unit is molded in one piece with an opaque resin and a see-through part (transparent part) 122 for making an area including the display part of the display unit 11 perspective is molded in one piece with transparent resin, respectively.
Patent JP-S61203621-A (JP)
Inventor: YONEDA HAJIME
IPC: H01G11/54
Filed: 1985-03-07
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-H04215092-A (JP)
Title: Electromagnetic micromotor
Inventor: FURIIDORIHI PEROO
IPC: G04C3/14
Filed: 1991-02-19
Abstract: PURPOSE: To miniaturize a motor and improve efficiency by providing a permanent magnet inside a rotor and including a means for guiding the rotor within a basket. CONSTITUTION: A micro-motor includes a rotator 50 equipped with a permanent magnet 52. A spindle 78 protruding from a bottom 64 of a basket 60 into an empty space 62 is received in a housing 74 of an overmolding(OVM) 54 and constitutes a first rotation guide means 56 of the rotor 50 together with the housing 74. A spindle 80 protruding from a cover 66 into the space 62 is received in a housing 76 of the OVM 54 and constitutes a second rotation guide means 58 of the rotor 50 together with the housing 76. The spindles 78, 80 are thus integrated with the bottom 64 and the cover 66 of the basket 60 and the housings 74, 76 are formed in the OVM 54 injection-molded around the permanent magnet 52, thereby improving efficiency of the motor and allowing the motor itself to be reduced to an extremely size. Thus a watch movement can be reduced to an extremely small size.
Patent JP-S53131331-A (JP)
Title: Air flow meter for electronic fuel supply device of automobile
Inventor: SUZUKI KIYOMITSU
IPC: F02M51/00
Filed: 1977-04-22
Abstract: PURPOSE: To obtain an air flow meter with a simple structure of high measuring accuracy by opening an air intake of a specific direction on the wall of a pipe duct with an essentially circular section. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-S59170662-A (JP)
Inventor: YOSHIDA SHIYOUICHI
IPC: F24F11/02
Filed: 1983-03-18
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-H04267749-A (JP)
Title: Plastic bag
Inventor: NAKAJIMA SHIGEKATSU
IPC: B65D30/02
Filed: 1991-02-20
Abstract: PURPOSE:To provide a simple, inexpensive method for forming a plastic bag provided at its predetermined place with a gradated window, through which the contents of the bag are visible, offering an attractive aesthetic image, a beautiful bag appearance and an enhanced packaging value. CONSTITUTION:A bag 1 made of a transparent or semitransparent resin film comprising a colored resin film 2a becoming thinner toward its edge or colored resin film 2 free from such a thin edge layered on an opening part (a) of the bag 1; and the colored resin film 2a layered on a part of the bag spaced apart from the opening part (a) with its thin edge facing toward the opening part (a).
Patent JP-S59165877-A (JP)
Title: Refrigeration device
Inventor: MORITA MITSURU
IPC: F04B39/02
Filed: 1984-03-09
Abstract: PURPOSE:To save energy by controlling a solenoid valve by means of a thermostat device for detecting lubricating oil temperature so as to keep the compressor temperature at a proper level. CONSTITUTION:When the temperature of lubricating oil 2 is relatively high in the summer season, a solenoid valve 5 is kept in an open state by the operation of a thermostat device 9, an approximately the total amount of refrigerant gas flows through the refrigeration circuit A to a condenser 6 by the operation of a resistance tube 4 of the second refrigeration circuit, so that high temperature refrigerant gas flows through a lubricating oil heating pipe 3 of the second refrigeration circuit B, hardly heating lubricating oil 2. On the contrary, when the temperature of the lubricating oil 2 is low in the winter season, the solenoid valve 5 of the first refrigeration circuit A keeps a closed state, and all the high temperature refrigeration gas flows through the lubricating oil heating pipe 3 of the second refrigeration circuit B to heat the lubricating oil 2, allowing the temperature to be properly kept.
Patent JP-2000220514-A (JP)
Title: Fuel characteristics determination method of engine
Inventor: TANI SHIGEYUKI
IPC: F02D45/00
Filed: 1999-02-24
Abstract: PROBLEM TO BE SOLVED: To determine fuel characteristics from model parameters which are estimated in respect to relation between an air-fuel ratio and a fuel injection amount from data thereof. SOLUTION: In this determination method, usual determination of an engine operation state is executed first (step 201). Collection and storing of data are executed (steps 203, 204). A model parameter indicating relation between an air-fuel ratio and a fuel injection amount is estimated from the temporal data (step 205). Whether the fuel is heavy or light is determined based on the estimated parameter value (step 206).
Patent JP-S60191425-A (JP)
Title: Magnetic recording medium
Inventor: SATOU TOSHIHIKO
IPC: G11B5/66
Filed: 1984-03-10
Abstract: PURPOSE:To obtain the magnetic recording medium which has superior corrosion resistance, wear resistance, and electromagnetic conversion characteristics by specifying the properties of an oxide crystal layer which is formed nearby from the surfase of a magnetic thin film on a nonmagnetic substrate and contains the oxide crystal phase of magnetic metal. CONSTITUTION:A layer which is formed continuously in the film thickness direction of the oxide crystal layer and contains magnetic metal and its oxide mixedly contains metal oxide satisfying stoichiometry and magnetic metal mixedly as well and metal oxide contained in the oxide crystal layer. Then, the ratio alpha of oxide forming metal atoms to all metal atoms forming metal and metal oxide at each film thickness depth decreases continuously from the surface of the magnetic thin film in the film thickness direction. The depth position of the magnetic thin film in the mixed layer in the film direction where the value alpha is 0.5 is 50-95Angstrom  preferably for practical use. The wear resistance is improved and a protecting function is reinforced because of the presence of the mixed layer to contribute to an increase in the output level of the magnetic recording medium. Further, the grain size of magnetic metal crystal grains is decreased and the C/N of the magnetic recording medium is improved greatly.
Patent JP-H10244354-A (JP)
Title: Structure for connecting introducing pipe in molten metal supplying device
Inventor: MITSUYOSHI HIROAKI
IPC: B22D17/30
Filed: 1997-02-28
Abstract: PROBLEM TO BE SOLVED: To prevent the leakage of molten metal and the damage of a piping by forming the molten metal receiving inlet of an injection sleeve to a recessing truncated conical shape and the introducing pipe tip end part of a molten metal supplying device to a projecting spherical surface shape and making both contacting parts to a linear- contacting condition. SOLUTION: In a die casting machine, the molten metal is injected into a die cavity from the injection sleeve 4. The injection sleeve 4 and the molten metal supplying piping 50 are connected with the introducing pipe tip end part 50A. Then, the molten metal receiving inlet 4a of the injection sleeve 4 is arranged at the lower part of outer peripheral side surface of the injection sleeve 4 and formed as the recessing tapered shape (truncated conical shape), and the introducing pipe tip end part 50A abutted on this has the shape formed as the spherical surface. Then, the connecting condition of the introducing pipe tip end part 50A to the molten metal receiving inlet 4a is not surface-contact but the linear-contact.  By this structure, even if the deformation caused by extension except the axial direction is developed, the allowance in some degree can be held and the damage of the piping caused by the extension of the molten metal piping by affecting the heat of the molten metal, can be prevented.
Patent JP-H03248620-A (JP)
Title: Output circuit
Inventor: AOKI YASUKO
IPC: H03K19/0185
Filed: 1990-02-27
Abstract: PURPOSE:To suppress overshoot and undershoot by limiting a gate-source voltage fed to a 1st one-condition MOS transistor(TR) and a 2nd opposite-conduction MOS TR so as to limit a current flowing to an output terminal. CONSTITUTION:The potential at a point A is applied to the gate of a 2nd N- channel MOS TR 8 in the output circuit, then a power voltage VPP is inputted till the power voltage VPP reaches 2.VTN or over and the TR 8 is completely turned on. Moreover, when the voltage VPP reaches 2.VTN or over, a limited voltage RN.VPP/(R'+RN) is inputted as a gate potential and the TR 8 is turned on. Since the potential at a gate point B is inputted to a 1st P-channel MOS TR 5 similarly, 0V is inputted till the voltage VPP reaches 2.VTR or over and the TR 5 is turned on. When the voltage VPP reaches 2.VTR or over, a limited voltage R''.VPP/(R''+RP) is inputted as a gate potential and the TR 5 is turned on. Thus, the TRs 5, 8 are turned on regardless of the power voltage.