baber/WOPTO huggingface dataset:
Patent JP-S61182675-A (JP)
Title: Slice level compensating circuit
Inventor: SHIROTA YOSHIRO
IPC: G11B20/10
Filed: 1985-02-08
Abstract: PURPOSE:To prevent the detection of spurious signals caused by noise components by switching over the slice signal level in a detecting means according to the presence or absence of information signals. CONSTITUTION:The recording information of an optical disk 1 is read and the positive and negative envelopes are detected (21), (22), respectively, through a CR coupling circuit 3 and an amplifier 4. The detected outputs are introduced through a differential amplifier 7 to produce a difference signal which is introduced into a differential amplifier 8. The positive envelope detection output is supplied to a comparator 9 and an output in excess of a set threshold VS turns a switch circuit 10 on. Thus, a -V and zero level voltages are set on the amplifier 8 during turning on and off of the circuit 10, respectively. Hence, a high level signal and a gradually decreasing level signal are outputted from the amplifier 8 during the time of absence and presence of input information signals, respectively, and applied as a slice level to a comparator 5. As a result, the information signal train free of noise components are obtained from the comparator 5.
Patent JP-S63192062-A (JP)
Title: Image forming device
Inventor: UDAGAWA YUTAKA
IPC: G03G15/01
Filed: 1987-02-04
Abstract: PURPOSE:To obtain an excellent color image whose density and color are less varied, by providing a surface potential detecting means to control the surface potential of the outer peripheral surface of each photosensitive drum to an approximately uniform value. CONSTITUTION:A rotational position detecting mechanism 200 provided with a light emitting diode 205 and a photosensor 204 is provided in an image forming unit I having a cyan color toner hopper 6, and a surface potentiometer 210 is provided for a photosensitive drum 8 of each of image forming units I-IV, and the photosensor 204 outputs the signal of logic level '1' in receiving the reflected light from a white colored part of each photosensitive drum 8. A latch 206 outputs data from each surface potentiometer 210 to a processor 203 when the signal of level '1' is given from the photosensor 204, and the processor controls the laser power outputted from a laser beam scanner 201 to control the surface potential of the photosensitive drum 8 to a prescribed target value. Thus, surface potentials of respective photosensitive bodies 8 are approximately uniform.
Patent JP-S54116731-A (JP)
Title: Piping device
Inventor: WADA ICHIROU
IPC: C23F13/00
Filed: 1978-03-02
Abstract: PURPOSE: To prevent the corrosion of the pipe constituting metals by giving the electric current from outside on the pipes, the anode of austenite stainless steel and the cathode of nickel alloy.  
     CONSTITUTION: The nickel alloy electrode 2 is provided in the washing fluid 3 containing about 10% sulfuric acid which flows in the austenite stainless steel pipe of the exhaust gas desulfurizing plant. When the electric current of 100 μA per 1 cm 2  electrode 2 is supplied to the anode made of austenite stainless steel pipe 1 and the cathode of nickel alloy electrode 2, the electric potential of the electrode 2 becomes about -0.5 V, and no trace of corrosion was found after 500 hours. On the other hand, the electric potential of the pipe 1 is about 0.2 V which is held well inside the passive state range. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-H07236213-A (JP)
Title: Gas-filled electric apparatus
Inventor: TAKEJI NAOAKI
IPC: H02B13/055
Filed: 1994-02-22
Abstract: PURPOSE:To facilitate cooling of insulating gas heated by charged members within a hermetically sealed enclosure. CONSTITUTION:A charged member 3 is disposed in a hermetically sealed enclosure 1 filled with insulating gas 8 which is heated 8a by the charged member 3. A fixing seat 13 projects to the outside of the enclosure 1 while communicating with the interior thereof and a containing vessel 14, opening to the outside of the fixing seat 13 while communicating with the interior of the enclosure 1, is fixed thereto before a thermally conductive element 15 is set in the vessel 14. A thermal conductive member 17 deviating from an allowable insulating field range and having a predetermined area for absorbing heat from the high temperature insulating gas 8a is bonded to the vessel 14 on the projecting side thereof and the gap between the vessel 14 and a heat pipe 15 is filled with a metallic tiller. Since the hermetically sealed enclosure is provided with a cooler 21, the insulating gas can be cooled easily and the size of facility can be reduced.
Patent JP-S56122289-A (JP)
Title: Vtr circuit
Inventor: KOJIMA NOBORU
IPC: H04N5/92
Filed: 1980-02-29
Abstract: PURPOSE:To obtain a picture quality of a high resolution without color moire, by setting a band width of LPFs of a recording system and a reproducing system equally practically in a luminance signal processing circuit provided with a luminance and chroma signal separating circuit. CONSTITUTION:At the recording time, the recording video signal supplied to terminal 15 is supplied to recording video head 22 through luminance and chroma signal separating circuit 17, LPF18, emphasis and clip circuit 19, FM modulator 20, and so on. At the reproducing time, the reproduced signal read by reproducing video head 23 is processed by the reproducing system consisting of FM demodulator 26, LPF27, de-emphasis circuit 28, and so on to obtain the demodulated luminance signal from terminal 29. In this circuit constitution, the band width of LPFs 18 and 27 are set equally, to, for example, 3MHz. As a result, the luminance signal where band 3MHz is secured is FM-modulated, and the luminance signal and the chroma signal overlap a little and are recorded. Meanwhile, at the reproducing time, the probability of appearance of color moire on the screen is small, and the resolution of the reproduced picture is improved.
Patent JP-S61183627-A (JP)
Title: Image switching device of variable power finder
Inventor: MIMA YUJIRO
IPC: G03B13/12
Filed: 1985-02-08
Abstract: PURPOSE:To switch an optical image and an optical image frame with simple structure by leading a beam of light from a wide angle objective lens to an eyepiece through a prism, by a movable reflecting plate which has been provided between a telephote objective lens and the eyepiece. CONSTITUTION:A telephote lens system 5 is constituted of a telephote objective lens 1, an optical image frame plate 4 and an eyepiece 3. To the optical image frame plate 4, an optical image frame is vapor-deposited. A turnable reflecting plate 7 is provided in the middle of a telephote lens system 5, and turned in the direction as indicated with an arrow. In the position of a full line shown in the figure, a beam of light from the telephote lens 1 is shut off, and an incident beam 11 from a wide angle lens 2 is led to the eyepiece 3 through a reflecting surface 6a of a prism 6 and the reflecting plate 7. At the same time, an optical image frame which has been formed on an emitting surface 6b of the prism 6 is led to the eyepiece 3. When the reflecting plate 7 is turned to the position of a one point chain line, the beam 11 of the wide angle lens 2 system is cut off, and it is switched to the optical system 5 of the telephote system. In this way, a finder can be switched at a narrow space with simple structure.
Patent JP-H07231974-A (JP)
Title: Game machine
Inventor: UGAWA SHOHACHI
IPC: A63F5/04
Filed: 1994-02-22
Abstract: PURPOSE:To provide a game machine which makes every one enjoy a combination of images in many ways on a variable display unit and features variety and joyousness. CONSTITUTION:Arrays of designs which are displayed variably in each of design display areas 40A to 40C in the upper, middle, and lower rows of an electrical variable display unit include '7,' 'flower,' 'head,' 'body,' and 'leg' designs. A win occurs when three '7' designs stop at a specific win line and are displayed in one step or when all of the designs which stop and are displayed are 'flowers,' or when the 'head,' 'body,' and 'leg' of the same figure stop and show an completed image of a figure.
Patent JP-S63190827-A (JP)
Title: Treating and preventive agent for ulcer and gastritis
Inventor: SHINBO YUUJIROU
IPC: A61P1/00
Filed: 1987-02-03
Abstract: PURPOSE:To obtain a treating and preventing agent for ulcer and gastritis, containing secoylidoid obtained from Gentinana lutea Linnee or Swertia japonica Makino and glycoside thereof as an active ingredient. CONSTITUTION:The aimed substance obtained by blending secoylidoid and glycoside thereof as an active ingredient with a pharmaceutically acceptable solid or liquid excipient and preparing a pharmaceutical by a conventional method. The agent can be prepared in dosage forms of an internal medicine, e.g. powder, tablet, emulsion, capsule, tea, granule, solution, etc., suppository, injection, etc. The secoylidoid and glycoside thereof are obtained by extracting Gentinana lutea Linnee or Swertia japonica Makino with a lower aliphatic alcohol, redistributing an aqueous layer fraction undistributed by chloroform or ether with a lower aliphatic alcohol, separating and purifying the aimed substance from a lower aliphatic alcohol essence.
Patent JP-H09218365-A (JP)
Title: Scanning device
Inventor: KODAMA KENICHI
IPC: H04N1/113
Filed: 1996-02-09
Abstract: PROBLEM TO BE SOLVED: To simplify the structure of an fθ lens, lower the cost, and facilitate the incorporating operation. SOLUTION: In an exposure device 38, fθ lenses 270Y, 270M, and 270C are installed by a light beam for yellow coloration from a laser 258Y, a light beam for magenta coloration from a laser 258M, and a light beam for cyan coloration from a laser 258C so that the respective light beams form image formation points at equal intervals corresponding to the wavelengths of the respective light beams. The respective fθ lenses only need to be of constitution corresponding the wavelengths of the respective light beams and it is not necessary to install plural expensive lenses corresponding to all the light beams of the different wavelengths like before, so the fθ lenses can be simplified in structure.
Patent JP-S60169687-A (JP)
Title: Scroll type fluid machinery
Inventor: FUKAZAWA YOSHIMITSU
IPC: F01C1/02
Filed: 1984-02-14
Abstract: PURPOSE:To markedly reduce the pressure loss of the gas which passes through a discharge passage by forming, in a specific region, the inlet-side opening port of a discharge passage drilled onto the sealing edge plate of a fixed scroll member and permitting a large discharge passage to be drilled onto the above-described sealing edge plate. CONSTITUTION:A discharge passage 5 is formed onto the sealing edge plate 1b of a fixed scroll member 1, and an inlet-side opening port 51 and an outlet-side opening port 52 are fromed to have a nearly equal area and are connected in a smooth continuous curve. The outlet-side opening port 52 is formed, as shown in the figure, into the circle having a radius (r), having the center P of the basic circle of the fixed scroll member 1. Since the inlet-side opening port 51 of a discharge passage 5 is formed in the region shown by the oblique lines in the figure, a large designed volume ratio can be adopted, and two sealed small chambers 3 and 4 simultaneously communicate to the discharge passage 5 with the desinged volume ratio, and a movable scroll member 2 can smoothly operate. Further, since a large discharge passage area can be adopted, the pressure loss of gas can be sufficiently reduced.
Patent JP-2000221882-A (JP)
Title: Multiple digital signature method, system therefor, device therefor and program recording medium therefor
Inventor: OTA KAZUO
IPC: G06F15/00
Filed: 1999-02-02
Abstract: PROBLEM TO BE SOLVED: To secure the safety and also to suppress a data amount from being increased. SOLUTION: In this system, signers 1 to L are coupled in a ring shape and p, q, g are opened to the public and at the time of joining the system, a signer (i)(i=1,..., L) generates a random number si and the system calculates Ii=gsi mod p and the system opens identification information IDi, Ii and a function fi to the public and the system holds si secretly and when the system receives Xi-1 from a signer i-1, the system generates a random number r1 and it calculates Xi =Xi-1 gr1 mod p to transmit it to the signer i+1. Next, when the system recieves a communication sentence Ii-1, X, m, yi-1 with a signature with respect to a document (m) from the signer i-1, the system calculates ei=fi (X, m) and yi =yi-1 +ri+ei si mod q and it establishes Ii =(Ii-1, IDi) and it transmits (Ii, X, m, yi ) to the signer i+1.  Moreover, a verifier verifies whether Ii, X, m, yL satisfy the verification equation or not.
Patent JP-H04263957-A (JP)
Title: Ink tank
Inventor: KOIKE HISAYUKI
IPC: B41J2/175
Filed: 1991-02-19
Abstract: PURPOSE:To suppress the evaporation of ink, to eliminate the change of an ink component with the elapse of time and to obtain good printing quality in the compact ink tank for holding and supplying the ink of an ink jet recording apparatus. CONSTITUTION:An ink tank is constituted of a tank main body 1, the air chamber 8 provided to the upper end of the tank body 1, the air passing groove 1a allowing the air chamber provided to the edge part of the tank main body to communicate with the open air and the tank lid 9 attached to the edge part of the tank main body and, further, the tank lid is constituted of a laminated film of an aluminum foil, an aluminized film, a plastic film with high gas barrier properties or a combination of them. Furthermore, printing is applied to the tank lid to form the ink tank as a caution label.
Patent JP-S58142223-A (JP)
Title: Transmission mechanism for volumetric flowmeter
Inventor: YAMAMOTO HIROSHI
IPC: G01F3/10
Filed: 1982-02-19
Abstract: PURPOSE:To provide a transmission mechanism for a volumetric flowmeter capable of accurately measuring flow rate and on which a position of taking out rotating force can be freely  determined by such an arrangement wherein an intermediate disk which is caused to move in  relation with a rotor is caused to rotate with its protruded point brought to contact with a  partition wall and the intermediate disk is caused to magnetically connect with a follower disk  which adjoins with a partition wall provided between them, and by this arrangement, the  rotor is caused to smoothly rotate by reducing its frictional resistance. CONSTITUTION:On the outside of a disk 8, a required number of permanent magnets 11 are  arranged so that their N poles or S poles become perpendicular to the partition wall 1b of a  case 1, and on the outside of the partition wall 1b of the case 1, a follower disk 12 corresponding to the disk 8 is arranged to be freely rotatable, and on the side of the disk 12 opposing to  N pole or S pole of the permanent magnet 11, S poles or N poles of permanent magnets 13, different from the permanent magnet 11, are provided and under magnetic attracting force,  two disks are magnetically connected each other so that the rotation of the intermediate disk  8 can be transmitted to the follower disk 12. This intermediate disk 8 is made of light synthetic resin material such as Teflon which is high in wear resistibility and low in friction coefficient. A pinlike protruded point 10 provided at the center of outside of the intermediate disk 8  is brought to contact with a central recess 7a of a circular recessed portion 7 of the case 1  and the disk 8 is caused to rotate around the protruded point 10 with friction reduced as much  as possible.
Patent JP-S55116912-A (JP)
Title: Method for construction of underdrainage
Inventor: WATANABE MASAYUKI
IPC: E02B11/00
Filed: 1979-03-02
Abstract: PURPOSE: To ensure smooth flow of drain in the construction by making thoroughly even the drainage channel made up of groups of underdrainage blocks each arranged horizontally.  
     CONSTITUTION: A connection cover 10 with a shape of T, Y or the like which comprises connection openings 11W13 adapted to connect underdrainage blocks 1W1" as inserted into each other at the ends by a specified length, arranged in three or more ways is used to connect the underdrainages in a shape of T, Y and the like. Prior to the connection, a clearance is provided at a position facing the end of the underdrainage blocks 1, 1' inserted into the two connection openings 11 and 12 facing each other. The underdrainage blocks are connected together in such a manner that the clearance communicates to the underdrainage blocks 1" inserted into the remaining connection opening 13 perpendicular thereto. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-H10220845-A (JP)
Title: Air conditioner
Inventor: ISHIKAWA YOSHIMASA
IPC: F24F11/02
Filed: 1997-02-07
Abstract: PROBLEM TO BE SOLVED: To securely regulate operation frequency even in a multiple type or in a single type by determining instruction frequency of a compressor in response to a required capability level from an indoor unit and correcting the instruction frequency of the compressor in response to detected fresh air temperature. SOLUTION: In a freezing circuit where upon cooling a compressed refrigerant by a compressor 2 is condensed with an outdoor heat exchanger, and is then distributed at a branch part to each indoor unit, evaporated and returned to the compressor 2, there is provided an indoor control part 8 for receiving indoor set temperature with a remote controller in which intake air temperature is detected by an intake temperature sensor 9. A required capability level is calculated from a temperature difference between the intake temperature and set temperature and is sent to an outdoor control part 7.  In succession, the outdoor control part 7 calculates primary instruction frequency previously set in response to the required capability level, and corrects it on the basis of fresh air temperature detected by a fresh air temperature to control the compressor 2 following the calculated secondary instruction frequency.
Patent JP-S63191994-A (JP)
Title: Electronic timepiece
Inventor: HORIKOSHI ICHIRO
IPC: G04C9/08
Filed: 1987-02-05
Abstract: PURPOSE:To stops a second hand at a display position of next 10Xinteger seconds and to accurately correct the time of a pseudo continuous hand advance timepiece by initializing a frequency division part in synchronism with a 10sec cycle signal when a user performs operation for hand stopping. CONSTITUTION:When an external operation member 6 is operated, a latch 28 becomes ready to operate. Then a 1Hz signal outputted from the Q terminal of a toggle type FF(TFF) 15 becomes a 5sec cycle signal through the quinary counter consisting of data type FFs (DFF) 16 and 20, a TFF 18, a NOR 17, and a NAND 19 and a TFF 21 counts up to a 10sec cycle signal. When the 1sec cycle signal falls, the output of a NOR 26 rises to a high level and the output of an AND 25 rises to the high level, so that the TFFs, DFFs, and latches of the 10sec counter 8 and waveform formation part 3 of the frequency division part 2 are all reset. Consequently, a motor stops and the second hand stops. The hand stopping position is therefore a precise-second or 10Xinteger second display position on a dial at any time and the time is accurately corrected.
Patent JP-S58142370-A (JP)
Title: Roll cleaner
Inventor: KAWAMOTO KIYOAKI
IPC: G03G21/00
Filed: 1982-02-17
Abstract: PURPOSE:To enable good cleaning for a long time with a small size and a light weight, by placing an electrostatic charging means so as to face a cleaning roll which rotates reversely to the rotation of a photosensitive drum and bringing a recovering roll into contact therewith. CONSTITUTION:A cleaning roll 2 consists of an expandable resin member 2A which encloses the circumference of a metallic shaft 2C. The high voltage of the same polarity as the polarity of remaining toners 7 is applied to an electric discharge electrode 6 from an electric power source 8. A recovering roll 3 in contact with the roll 2 is formed of a conductive material such as metal and is applied with 1.0-2.5kV voltage of the polarity reversed from the polarity of the toners 7. The recovered toners on the smooth surface of the roll 3 are scraped off by a blade 4 and are thus recovered.
Patent JP-H03231081-A (JP)
Title: Hub power generator for bicycle
Inventor: TAKAMIYA KIKUZO
IPC: B62J6/12
Filed: 1990-02-06
Abstract: PURPOSE:To improve durability by increasing the revolution of a hub through a plane tary roller device which is installed in turnable manner on an axle and consists of a plurality of planetary rollers interposed between a sun roller which is formed integral ly with a magnet and an elastic ring which is formed integrally with a fixed cylinder body and transmitting the revolution of the hub to a power generator. CONSTITUTION:The hub body 4 of a front wheel is formed into a hollow cylindrical form whose one edge is opened, and an axle 2 is installed in turnable manner on a side cover body 5 screwed at the opened edge. The opened edge side of the hub body 4 is formed into a large diameter part 4a, and a fixed cylinder 8 which is formed into a hollow cylinder form and whose one edge is formed into a large diameter part 8a is accommodated into the hub body 4, and fixed on the axle 2. An elastic ring 10 is installed integrally with the inner peripheral surface of the large diameter part 8a of the fixed cylinder body 8, and the first and second planetary rollers 24 and 26 are interposed between the first and second sun rollers 23a and 22b on the elastic rings 10 and the axle 2. Accordingly, the first and the second planetary roller trains are constituted, and a magnet 22a is revolved at a high speed by the revolution of the hub body 4 due to the traveling of a bicycle, and electric power is generated on a power generating coil body 20.
Patent JP-H01201221-A (JP)
Title: Vacuum cleaner
Inventor: SUO KAZUMA
IPC: A47L9/28
Filed: 1988-02-04
Abstract: PURPOSE:To correspond to respective usages only by replacing an exchange-type inlet tool for a small inlet tool and to decrease a cost by constituting an inlet tool for a floor of the small inlet tool connected to an extending pipe and the freely attachable detachable exchange type inlet tool to the small inlet tool. CONSTITUTION:An inlet tool 3 for a floor is constituted while a small inlet tool 5 equipped with a connecting pipe 4 and an exchange type inlet tool (power nozzle) 6 to build in a rotating brush 6a are freely attachably detachably linked by a buckle 7, and communicated through an extending pipe 8, a hose 9 and a rotating pipe 10 with a cleaning main body 1. Consequently, only by replacing the exchange type inlet tool 6 for the small inlet tool 5, the correspondence can be executed to respective usages. Thus, the cost can be decreased compared with the cleaner to connect directly respective inlet tools for the floor to an extending pipe.
Patent JP-H02205420-A (JP)
Title: Pin insertion and withdrawal device
Inventor: MURAYAMA TOMOHIRO
IPC: B23P19/04
Filed: 1989-02-03
Abstract: PURPOSE:To make it possible to insert/withdraw the whole pin in/from a through hole by gripping a plate member boring the through hole by a pair of arms in a facing direction and providing a pin press-in mechanism having a press-in rod at one of the arms and a push-out rod having a push-out mechanism at the other arm. CONSTITUTION:A plate member is gripped by a projection side probe 13 of a position detector for optically detecting the central position of the through hole of the plate member and a receiver side probe 20. A pin 7 absorbed and held by an absorbing hole 15 is inserted in the guide hole 14 at the center of the projection side probe 13 and also and the press-in rod 10 of a press-in mechanism is inserted therein. The guide hole 14 of the prove 13 is positioned at the through hole of the plate member and the pin 7 is inserted under pressure in the through hole by the press-in rod 10. At the time of withdrawal, the pin 7 is pushed out by a push-out rod 17. Consequently, the whole pin 7 can be inserted under pressure in the through hole and also in this case, the withdrawal can be carried out without the deformation of the through hole and the pin 17.