baber/WOPTO huggingface dataset:
Patent JP-S54113754-A (JP)
Title: Clamp screw
Inventor: ARANO ISAMU
IPC: F16B31/02
Filed: 1978-02-24
Abstract: PURPOSE: To prevent the second unfastening of a clamp screw after clamping, by forming a portion for transmitting the revolution of a screw head to a screw body so that the portion be liberated prior to other portions when clamping torque exceeds a fixed value.  
     CONSTITUTION: In a clamping screw consisting of a screw body 8, to which screw threads 82 are shaped, a screw head 10 turned by means of a tool and a portion for transmitting the revolution of the screw head 10 to the screw body 8, said transmission portion is formed in shapes such as a constricted portion 9 to ensure that said portion 9 be cut prior to other portions when clamping torque exceeds a fixed value. Consequently, the constricted portion 9 is broken prior to the screw threads 82 when the screw head 10 is turned by means of a spanner, etc. and clamping torque surpasses one sufficient for fixing, and turning effort is not transmitted to the screw threads 82, thus preventing the second unfastening of the clamping screw after clamping. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-H11211090-A (JP)
Title: Heater
Inventor: SUGIMOTO YOSHITERU
IPC: F24C3/12
Filed: 1998-01-30
Abstract: PROBLEM TO BE SOLVED: To protect the installing part of a heater and the peripheral wall face against thermal damage by detecting overheating of a top plate or the upper part of a heater case in the early stage. SOLUTION: The heater comprises a heater case 20, a top plate 41 covering the opening at the upper end thereof, and a temperature detector 710 disposed at the first corner gap out of four corner gaps formed between the heater case 20 and the circumferential wall of a recess made on the top plate 41. The first corner gap is set larger than other gaps and a constricted part having a small gap to a heating source in the recess is provided on the side of the recess shifted from the first corner gap. A heat transmitting member A introduces heat from the circumferential wall of the recess corresponding to the constricted part or an outer circumferential flange contiguous thereto to the heat sensitive part of the temperature detector 710.
Patent JP-H10204112-A (JP)
Title: Olefin polymerization catalyst, production of olefin polymer and olefin polymer
Inventor: IMUDA JUNICHI
IPC: C08F4/642
Filed: 1997-01-17
Abstract: PROBLEM TO BE SOLVED: To obtain a high-molecular-weight olefin (co)polymer having a high comonomer content in very high polymerization activity by using a catalyst prepared by previously bringing a group IVB transition metal compound having a specified structure into contact with an organoaluminumoxy compound, etc. SOLUTION: This catalyst is obtained by previously bringing a group IVB transition metal compound represented by the formula into contact with an organoaluminumoxy compound and/or a compound which reacts with the transition metal compound to form an ionic pair and optionally an organoaluminum compound. In the formulas, M is a group IVB transition metal atom; at least one R<1> is a 11-20 20C aryl or the like, and the rest are hydrogen atoms or the like; R<2> is hydrogen, a 1-10C alkyl or the like; R<3> and R<4> are each hydrogen, a 1-10C alkyl or the like; X<1> and X<2> are each hydrogen, a 1-20C hydrocarbon group or the like; and Y is a 1-20C divalent hydrocarbon group or the like.
Patent JP-H10203476-A (JP)
Title: Sand pile driving ship
Inventor: OGAWA TAKESHI
IPC: B63B35/00
Filed: 1997-01-17
Abstract: PROBLEM TO BE SOLVED: To eliminate necessity for removal of a leader and casing device and necessity for a chartered crane and barge, in the case of passing under a construction object of bridge or the like, in a sand pile driving ship. SOLUTION: On a base ship 2, a sand pile driving ship 1 vertically provided with a shears 3 of height of upper limit height or less is suspension supported by a leader 5 capable of tilting forward with a pivotal support part 5a on the base ship 2 serving as the center and a wire 9 via an upper end part of the shears 3 and the leader 5, in the case of tilting forward the leader 5, to be provided with a casing device 13 bound to the leader 5 to be tilted forward with the leader 5.  Further, the wire 9, suspension supporting the casing device 13 via an upper end part of the shears 3 and the leader 5, tilts forward the leader 5 and the casing device 13 till obtaining a height of upper limit height or less, and reversely, so as to reset the leader 5 and the casing device 13 in a tilt condition to an ordinary standing condition, a pile winch performing action winding/winding back the wire 9 is provided.
Patent JP-S60166635-A (JP)
Title: Production of alpha-naphthol
Inventor: SUZUKI TOSHIHIDE
IPC: C07C39/14
Filed: 1984-02-08
Abstract: PURPOSE:To improve the yield and selectivity of alpha-naphthol and to lower the reaction temperature in the production of alpha-naphthol useful as an intermediate of dyes and agricultural chemicals by the dehydrogenation of alpha-tetralone in liquid phase, by using a palladium catalyst supported by activated carbon. CONSTITUTION:The dehydrogenation reaction of alpha-tetralone is carried out in the presence of a palladium catalyst supported by activated carbon, preferably in an organic solvent, further preferably under the flow of an inert gas, at 60-350 deg.C, preferably 140-230 deg.C, to obtain alpha-naphthol at a low reaction temperature in high yield and selectivity. The amount of palladium supported on the activated carbon is generally 1-30wt%, preferably about 5-10wt%, and the palladium- supporting activated carbon is used at a weight ratio of generally 0.05-2, preferably 0.2-0.8 based on the alpha-tetralone.
Patent JP-H10205522-A (JP)
Title: Hinge device for opening and closing body
Inventor: SUZUKI KAZUYOSHI
IPC: G03G15/00
Filed: 1997-01-17
Abstract: PROBLEM TO BE SOLVED: To prevent a hinge member from slipped off from an opening and closing body by providing a means for preventing a pin from slipping off from an engaging part by the weight of the hinge member when the pin of the hinge member is inserted into the engaging part. SOLUTION: A pin 8 of a hinge member 4 is inserted into a center hole 31 of an engaging part 21 of a pressure plate 3, the hinge member 4 is inserted into and locked on a recessed groove of a reading device main body 1 while holding the pressure plate 3 by the hand, however, there is a possibility that the pin 8 slips off from the engaging part 21 by the weight of the hinge member 4 and dropped. The same is true for a hinge member 4a. A pin slipping preventing means for preventing that is constituted of a protrusion 22 on the free end of the pin 8, and the protrusion 22 projects in the radial direction of the pin 8. When insertion of the pin 8 to the center hole 31 is completed, the protrusion 22 is engaged with the edge of the engaging part 21 to prevent the pin 8 from slipping off from the engaging part 21.  Therefore, an operator can fix the hinge member 4 to the main body 1 without caring what the pin 8 slips off from the engaging part 21.
Patent JP-S61181283-A (JP)
Title: Automatic brightness limit device
Inventor: MORI KAZUO
IPC: H04N5/59
Filed: 1985-02-06
Abstract: PURPOSE:To reduce manufacture cost not by controlling directly a display signal amplifier but by adjusting the brightness of the system of the three primary colors altogether to prevent increase in number of components used for the circuit even in case of a color display device. CONSTITUTION:A display signal input 1 is amplified by a display signal amplifier 2 and fed to a display device 4 as a display signal output 3. On the other hand, a current i1 of a display power supply 6 is detected by a current detector 7 provided to a low voltage side of the display device power supply 6 and a brightness limit signal 9 from the current detector 7 is fed to an adder 13. A brightness limit signal 9 and a brightness control signal 12 from a brightness control power supply 11 are added by an adder 13 and the result is fed to the grid electrode of the display device 4 as a brightness control signal 10. Thus, too much bright display is limited by the application.
Patent JP-S61181278-A (JP)
Title: Alarm display system of video camera
Inventor: HOJO KEN
IPC: G03B17/18
Filed: 1985-02-06
Abstract: PURPOSE:To avoid alarm display when illuminance is low for a very short time by providing a prescribed time when an alarm signal is raised until the display is attained in the alarm display for a low illuminance of a video camera. CONSTITUTION:Space information of an object subject to photoelectric conversion by an image pickup tube 1 is inputted to a preamplifier 2 as a minute electric signal and amplified. After the signal is subject to various signal processings by a signal processing circuit 3, the result is converted into an NTSC signal by an encoder circuit 4 and outputted. In case of a low illuminance when the illuminance of the object does not satisfy a prescribed level, a low illuminance alarm signal is inputted to a delay circuit 6 from a signal processing circuit 3. When a prescribed time is elapsed after the alarm signal is inputted (when the alarm signal is inputted continuously for a prescribed time or over), an alarm display circuit 7 is activated to apply a low illuminance alarm display on an indicator 8.
Patent JP-S58137313-A (JP)
Title: Power amplifier
Inventor: HORI FUMIO
IPC: H03F3/21
Filed: 1982-02-10
Abstract: PURPOSE:To reduce loss by applying a variable bias which varies with an output voltage to a transistor (TR) for connecting a high voltage source and controlling the collector voltage of a TR for amplification. CONSTITUTION:A TRQ3 is provided with negative feedback by a resistance R2 and its collector-emitter voltage is freely settable. While the output voltage eO is nearly equal to the voltage of a low voltage source VCC1, the collector-emitter voltage of the TRQ3 is small and when the output voltage eO becomes closer to the voltage of a high voltage source VCC2, a current flowing through a resistance R3 increases, so the voltage across the resistance R2 also rises to apply the variable bias which varies with the output voltage eO to the base of a TRQ2, and consequently loss due to the bias of a circuit is suppressed to reduce the loss of the TRs.
Patent JP-H05215643-A (JP)
Title: Motor-driven testing device
Inventor: KONO KIMIO
IPC: G01M99/00
Filed: 1992-02-05
Abstract: PURPOSE:To obtain a motor-driven testing device which can automatically finds its optimum constant without manual aid and can test a specimen even when the specimen has indefinite specifications and characteristics by preventing interference of the torsional resonance frequency of a mechanical system which changes depending upon the change gear ratio of a change gear with a control system. CONSTITUTION:The title testing device is provided with a filter 114 the frequency of which can be arbitrarily set by means of a selection circuit 144 and which suppresses the interference between a mechanical system 101 and control system in the whole operating region of the system 101 by attenuating the torsional natural frequency component of the mechanical system 101 which changes depending upon the operating condition of the system 101. In addition, the testing device is also provided with a controlling constant calculation circuit 142 with a learning function which finds the optimum constant of the testing device by comparing allowable control values Np and Tp which preset the range of fluctuation in the rotating speed and torque measured values which are objects to be controlled with each other and automatically repeating the comparison by changing the controlling constant until the allowable control values are reached.
Patent JP-H04258651-A (JP)
Title: Adhesive resin composition
Inventor: YAMAGUCHI YUKIO
IPC: C08L23/26
Filed: 1991-02-13
Abstract: PURPOSE:To improve the adhesion between PS and a gas-barrier resin by compounding a modified ethylene-vinyl acetate copolymer with an ethylene- acrylic ester copolymer in a specified ratio. CONSTITUTION:A modified ethylene-vinyl acetate copolymer is prepd. by grafting an unsatd. carboxylic acid (anhydride) (e. g. maleic anhydride) onto an ethylene-vinyl acetate copolymer which is prepd. by a high-pressure polymn. under 1000-3000atm or by a soln. or emulsion polymn. under 100-400atm and has a vinyl acetate content of 10wt.% or higher, pref. 10-50 wt.%, and an MI (JIS K 6760) of 0.1-500g/10min. 5-50 pts.wt. the copolymer is compounded with 95-50 pts.wt. ethylene-acrylic ester copolymer having an acrylic ester content of 10wt.% or higher, pref. 10-50wt.%, and an MI of 0.5-150g/10min thus giving the title compsn.
Patent JP-H07231660-A (JP)
Title: Thyristor converter
Inventor: KAWASAKI KENICHI
IPC: H02M7/19
Filed: 1994-02-17
Abstract: PURPOSE:To generate surely a light gate signal and ignite a bypass pair valve, by providing a generative circuit of the light gate signal for igniting light- triggered thyristors constituting a thyristor converter which generates the light gate signal through the logical sum of the outputs of first and second pulse generating circuits. CONSTITUTION:An outputted light gate signal (e) passes through an optical fiber cable 83, and is given to a thyristor valve 53. Hereupon, the delay time of the light gate signal (e) is determined based on the time in which the arc voltage of a bypass switch reaches after its reception of a contact-parting command the voltage not lower than the minimum ignition voltage level necessary for the ignition of a light thyristor. Thereby, the light gate signal (e) is generated surely, and a bypass pair valve can be ignited by the minimum light gate signal without the remarkable reductions of the life times of light emitting diodes 91 even when the arc voltage generated in the case of the contact-parting of the bypass switch is lower than the forward voltage sensing level of the thyristor valve.
Patent JP-H06236625-A (JP)
Title: Recording system for analog audio signal
Inventor: KAMOSHITA MASA
IPC: G11B20/10
Filed: 1993-02-08
Abstract: PURPOSE:To accurately restore an original audio signal by recording a unit audio signal in segment unit while scrambling it and simultaneously adding the overlapping part of the audio signal to the unit audio signal. CONSTITUTION:In a recording mode, a specific identification number is inputted from a keyboard or the specific identification number is set beforehand. The presence of set identification number is analized by a CPU 17 as a control section, a scramble pattern is generated based on a random number table generated in the CPU 17 ad this scramble pattern data is set in a register provided in a scramble control circuit 18. Then, a key code is generated from the identification number and the scramble pattern and this is set in another register of the control circuit 18, as well.
Patent JP-H09208594-A (JP)
Title: Methylphoshonic acid derivative
Inventor: HOTODA HITOSHI
IPC: A61K31/7042
Filed: 1996-02-07
Abstract: PROBLEM TO BE SOLVED: To obtain the subject new compound capable of being massively produced, acting on an inositol 1,4,5-trisphosphate receptor, having an excellent enhancing action on the concentration of calcium ions in cells and useful as a vasopressor medicine, a bed sore medicine, a medicine for cerebral diseases such as geriatric dementia, etc. SOLUTION: A compound of formula I (R is a 1-4C alkyl) or its salt. For example, a compound of formula II. The compound of formula I is obtained from a 3,4,6-tri-O-acetyl-2-O-benzyl-α-D-glucopyranosyl bromide of formula III (Ac is acetyl; Bn is benzyl) and a 2'-O-(t-butyldimethylsilyl)-5'-O-(4- methoxyphenyldiphenylme thylmethyl)-N,N-dibenzoyladenosine of formula IV (TBS is t-butyldimethylsilyl; MMTr is 4-methoxytrityl) as starting substances.
Patent JP-H07230278-A (JP)
Title: Damper device of upright piano
Inventor: MIWA SHINICHIRO
IPC: G10C1/02
Filed: 1994-02-17
Abstract: PURPOSE:To provide a damper device with which an upright piano is easily constituted. CONSTITUTION:This damper device 40 is composed of a damper lever 10 which is oscillatably supported toward a string 4 on a center rail 6 supporting a striking mechanism, not shown in the Fig., a damper lever wire (hereafter described as the 'wire') 42 which extends from this damper lever 10, a damper head 16 which is mounted at the front end of this wire 42 and is provided with felt 14a, 14b, a spring 18 which energizes the damper lever 10 in a direction where the damper head 16 comes into contact with the string 4, a wippen 26 which turns counterclockwise in the Fig. when a key is pressed and a damper spoon 28 which comes into contact with the bottom end of the damper lever 10 corresponding to turning thereof. The wire 42 is formed out of a hard steel wire. The vibration of the damper head 16 and the wire 42 is prevented without providing the damper device with a damper stop rail for suppressing the vibration of the damper head 16 in contact with the wire 42 at the time of a key touch.
Patent JP-H07231376-A (JP)
Title: Light source control circuit and picture reader
Inventor: SHIMIZU HIROO
IPC: H04N1/04
Filed: 1994-02-17
Abstract: PURPOSE:To provide a picture reader capable of maintaining the light emitting amount of a light source constant over a long period and thus performing high picture quality read over the long period. CONSTITUTION:In this picture reader for reading pictures formed in an original 2 by irradiating the original 2 with light emitted from an LED array 3 and photoelectrically converting reflected light from the original 2 at the time by a CCD line sensor 6, the LED array 3 is provided with a circuit composed of plural resistors and plural switches for changing the light emitting amount of the LED. Also, a rear surface plate 7 is provided opposite to the CCD line sensor 6 holding the original 2 there between. Then, a light emitting amount detection circuit 10 detects the light emitting amount of the LED array 3 based on signals obtained by photoelectrically converting the reflected light from the rear surface plate 7 by the CCD line sensor 6. A light emitting amount control circuit 11 controls the switches emitting amount approach a prescribed light emitting amount set beforehand.
Patent JP-H10215990-A (JP)
Title: Card stand
Inventor: TSUJI ICHIRO
IPC: A47G1/14
Filed: 1997-02-03
Abstract: PROBLEM TO BE SOLVED: To provide a card stand which can be leaned by either of one edge or another edge making a right angle with the former. SOLUTION: This stand is provided wit first and second leaning pieces 2 and 3, the first piece 2 can be pull-stood along a first folding line 2b making a right angle with the one edge of a card holding body and the second piece 2 can be pull-stood along a second folding line 3b making a right angle with the line 2b. Then the pieces 2 and 3 are provided with first and second notch parts 2c and 3c engaged with each other in the state of pull-standing to lean the card holding body by one edge of the card holding body and the piece 2 and to lean the card holding body by another edge making a right angle with the one edge of the card holding body and the piece 3 in the state of pull-standing the pieces 2 and 3.
Patent JP-H01196756-A (JP)
Title: Magneto-optical recording and reproducing device
Inventor: MIZUNO OSAMU
IPC: G11B11/105
Filed: 1988-01-29
Abstract: PURPOSE:To fix a magnetic field for an arbitrary access position of an optical head by applying a current proper for recording or erasing to a bias magnetic field generat ing device based on the position in the radial direction of a medium and an optimum driving current in the position. CONSTITUTION:Magnetic field intensity distribution data obtained at the time of driving a bias magnetic field generating device 4 is stored in a storage part 10. When an optical head 2 is moved to the recording position, a position detecting part 8 converts the position of the head 2 to an electric signal (a) and sends it to a calculating part 11 of a control part 9 to calculate a magnetic field intensity value corresponding to the position in the radial direction of the medium, where the head 2 exists, in accordance with magnetic field intensity distribution data in the storage part 10, and the driving current of the device 4 which is required to give the magnetic field intensity most suitable for recording to a magneto-optical recording medium 1 is calculated by linear interpolation. The calculating part 11 outputs the target driving current through a driving part 12 to drive the device with a constant current and the magnetic field most suitable for recording is given to the medium 1. Thus, the magnetic field given to the position of a light spot on the medium is approximately fixed for an arbitrary access position of the optical head.
Patent JP-H08252454-A (JP)
Title: Microcapsule with wall prepared of reaction product of polyisocyanate/guanidine
Inventor: URURIHI NEHEN
IPC: B01J13/16
Filed: 1996-01-12
Abstract: PROBLEM TO BE SOLVED: To obtain microcapsules which are stable mechanically and chemically and which express strong writing images quickly from environmentally desirable raw materials by making capsule walls from reaction products of guanidine compounds and polyisocyanates. SOLUTION: A materials to be encapsulated and polyisocyante are made into an oily phase by means of an org. water-immiscible inert solvent such as arom. hydrocarbons and carboxylic esters. Then, the oily phase is mixed into an aq. phase optionally comprising additives and stirred to make a fine emulsion. Thereafter, an aq. soln. of guanidine is added to the emulsion, and stirred with heating. Microcapsules thus prepared from environmentally desirable raw materials, polyisocyanate and the guanidine compd., are highly safe and stable mechanically and chemically, which produce strong writing images when applied on non-carbon copying paper.
Patent JP-H03227440-A (JP)
Title: Knopped cotton for spun yarn
Inventor: SEKINO HIROSHI
IPC: D01F8/14
Filed: 1990-01-31
Abstract: PURPOSE:To obtain the subject knopped cotton excellent in development of moire patterns without any falling off thereof in forming into spun yarn by eccentrically joining a specific polyester to polyethylene terephthalate and forming plural conjugate fiber staples of crimped parts having knopped parts and noncrimped parts. CONSTITUTION:The objective knopped cotton obtained by spinning (A) a polyester consisting essentially of ethylene terephthalate units containing 1.5-6mol% constituent units having a metal sulfonate and (B) polyethylene terephthalate preferably of a side-by-side type at 1:1 discharge ratio into conjugate fiber and subjecting the resultant fiber to relaxing heat treatment and composed of knopped parts with 1-5mm diameter of mutually entangled crimped parts (having crimps of >=10 peaks/25mm) and plural tail parts with 5-30mm length of noncrimped parts.
Patent JP-S60165888-A (JP)
Title: Color television camera
Inventor: NAKAYAMA YOSHIAKI
IPC: H04N9/73
Filed: 1984-02-09
Abstract: PURPOSE:To use the titled camera for a normal image pick up in common for a film image pick up and to obtain a proper white balance during film image picking up by forming a color difference signal by the output signal from a luminance signal process circuit and the output signal from a color signal process circuit and average them, and comparing them with the output signal from a reference voltage generator circuit, and controlling a gain of the color signal process circuit during its operation. CONSTITUTION:At the time of image pick up of a color negative film, a switch 9 is turned on to image pick up the color negative film by an image pick up part 1. The gain of an R signal process circuit 4 is controlled to respond to a count value in an up/down counter 15, and a color difference signal R-Y average value from a color difference signal circuit 6 becomes equal to a reference voltage value of a reference voltage generator circuit. Thus even when a picture is sent to the next picture, the white balance is always properly adjusted during color negative film is image picked up.