baber/WOPTO huggingface dataset:
Patent JP-H06139676-A (JP)
Title: Disk driving device
Inventor: SAWADA TORU
IPC: G11B17/04
Filed: 1992-10-26
Abstract: PURPOSE:To make the disk driving device thin in thickness in simple structure without possibility of flawing a hard case even when the hard case is brought into contact with a spherical body at the time of inserting a disk. CONSTITUTION:A spindle 63 is provided with a through hole 67 to open upward, and the spherical body 68 is freely rotatably housed in this through hole 67, and also the spherical body 68 is restrained from pulling out, so as to be partly protruding out of the opening. Since a conical coil spring 70 for energizing upward the spherical body 68 is provided in the through hole 67, even when the hard case is brought into contact with the spindle (center shaft) 63 (spherical body 68) on impact at the time of loading the disk, the spherical body 68 is pushed down against the conical coil spring 70 to buffer the impact, and hence no strong pressure takes place between the spindle 63 (spherical body 68) and the hard case. Moreover, since the spherical body 68 can be rotated, even when the center shaft and a disk cartridge 66 are brought into contact with each other, the disk cartridge is difficult to be flawed.
Patent JP-H02134829-A (JP)
Title: Semiconductor element
Inventor: MIYASHITA ISAO
IPC: H01L21/338
Filed: 1988-11-16
Abstract: PURPOSE:To acquire a gate pressure resistance of about 8 V to 15 V and to reduce an ohmic series resistance of a source electrode and a drain electrode by making an impurity concentration of an n-type GaAlAs layer immediately below a gate electrode of a two-dimensional electronic field effect transistor within a specified range. CONSTITUTION:In a semiconductor element having a substrate 1 consisting of semiinsulating GaAs, a multilayer growth layer 2 which is provided to a principal surface thereof and provided with a hetero junction, source/drain electrodes 10, 11 provided on an N<+>-type GaAs layer 7 of an uppermost layer of the multilayer growth layer 2, and a gate electrode 9 which is provided on a GaAlAs layer 15 whereon an lower layer of the N<+>-type GaAs layer 7 is exposed, an impurity concentration of the GaAlAs layer 15 is made about 10<16>-10<17>cm<-3>. For example, the multilayer growth layer 2 is made in lamination structure of an undoped GaAs layer (buffer layer) 3, an n<+> type GaAlAs layer (electron supply layer) 5, the n-type GaAlAs layer 15, and a pair of n<+> type GaAs layers 7, thereby producing two-dimensional electron gas 8 to a surface layer section of the GaAs layer 3.
Patent JP-H07120168-A (JP)
Title: Firing jig
Inventor: GOTO TETSURO
IPC: F27D3/12
Filed: 1993-10-22
Abstract: PURPOSE:To prevent rough aggregate from being released from a firing jig keeping a thermal shock properties in a firing jig used when firing tableware, etc. CONSTITUTION:A firing jig including rough aggregate is dipped in inorganic sol or an aqueous glass solution and is dried. This is yielded by further firing or by these methods. Hereby, the rough aggregate is prevented from being released from the firing jig and hence work rejection rate is reduced.
Patent JP-H08147059-A (JP)
Title: Constant voltage circuit
Inventor: FUJIMOTO HIROZO
IPC: G05F1/613
Filed: 1994-11-22
Abstract: PURPOSE: To suppress a varying component of a constant voltage output and to widen its voltage range even when the frequency of the varying component superposed on a source voltage becomes high. CONSTITUTION: This circuit is provided with a source follower type current source circuit 4 which receives the output of a differential amplifier 3 at the gate of an N channel transistor(TR) Q21 that has its source-gate voltage hardly affected by the varying component of the source voltage Vcc and converts it into a current. Then a current transmitting circuit 5 is provided with transmits the generated current of this current source circuit 4 to a P channel TR Q11 for current control in a current control circuit 2 by current mirror circuits CM1 and CM2.
Patent JP-2001104239-A (JP)
Title: Curved tube of endoscope and method for manufacture thereof
Inventor: KOMACHI YUICHI
IPC: G02B23/24
Filed: 1999-10-08
Abstract: PROBLEM TO BE SOLVED: To provide a curved tube of an endoscope capable of making itself superfine by connecting adjacent joint pieces without rivets and capable of smooth curving operation. SOLUTION: A number of joint pieces 11 are arranged in a row. A pair of first connecting pieces 12 (first connecting part), apart from each other by 180 degrees in the circumferential direction, are mounted at one end of each joint piece 11, and a pair of second connecting pieces 13 (second connecting part), apart from each other by 180 degrees in the circumferential direction, are mounted at the other end of the joint piece. A through-hole 12a (engagement part) is formed in each first connecting piece 12, and a projection 13a is formed in each second connecting piece 13. The projection 13a is rotatably inserted into the through-hole 12a in such a way that the circular inner circumference of the through-hole 12a and the circular outer circumference of the projection 13a rub together.  The first and second connecting pieces 12 and 13 of adjacent joint pieces 11 are connected with each other only by the engagement of the projections 13a and the through-holes 12a.
Patent JP-H01128584-A (JP)
Title: Method for stabilizing oscillating frequency of semiconductor laser
Inventor: YASAKA HIROSHI
IPC: H01S5/00
Filed: 1987-11-13
Abstract: PURPOSE:To stabilize the oscillating frequency of a semiconductor laser, by using an optical filter and polarizing rotor, obtaining feedback light, which has the amount of light corresponding to the frequency of emitted light and has a polarizing angle that is rotated by 90 deg. with respect to the emitted light, and feeding back the feedback light into the semiconductor laser. CONSTITUTION:Emitting light L1 from a semiconductor laser 1 is made to pass through a polarizing rotor 3 through an optical lens 2. Light L2, which has a polarizing angle that is rotated by 45 deg. with respect to the emitted light L1, is obtained. Then, the light L2 is inputted into an optical filter 4, which has the reflectivity corresponding to the frequency of the light. Light L3, which has the amount of light corresponding to the frequency of the emitted light L1 and has the polarizing angle that is rotated 45 deg. with respect to the emitted light L1, is obtained in the optical filter 4. Then, the light L3 is made to pass through the polarizing rotor 3 again. Thus light, which has the amount of light corresponding to the frequency of the emitted light L1 and is rotated by 90 deg. with respect to the emitted light L1 is fed back into the semiconductor laser 1 as the feedback light 4.
Patent JP-H04273866-A (JP)
Title: Novel 2-saccarinylmethylarylcarboxylate useful as protein-decomposing enzyme inhibitor and its composition and use thereof
Inventor: RICHIYAADO POORU DANRATSUPU
IPC: A61P3/00
Filed: 1991-11-01
Abstract: PURPOSE: To provide a new compound which acts as an inhibiting factor against protease for serine-protein and is useful for curing degenerative diseases such as emphysema, chronic rheumatic arthritis, pancreatitis, bronchitis and inflammatory enteritis.  
     CONSTITUTION: The compound of formula I, e.g. 4,6-dimethoxy-2- saccharinylmethyl 2,6-dichlorobenzoate, is obtained by allowing a 4-R 4 -R 5 -2- halomethylsccharin of formula II (X is a halogen) and an arylcarboxylic acid of the formula; ArCOOH to react with each other in the presence of an acid acceptor (e.g. triethylamine) and in a solvent such as toluene. This compound inhibits a leuco-elastase and chymotrypsinoid enzymes. In the formula I, Ar is phenyl, naphthyl, anthryl, etc.; R 4  is H, a halogen, lower alkyl, lower alkenyl, lower alkoxy, etc.; R 5  is H, a halogen, cyano, nitro, etc. 
     COPYRIGHT: (C)1992,JPO
Patent JP-H11119838-A (JP)
Title: Noise elimination device for pwm-controlled fluid pressure driver
Inventor: HIGAKI SHIGEHIKO
IPC: G05D16/20
Filed: 1997-10-21
Abstract: PROBLEM TO BE SOLVED: To decrease the noises generated by a fluid pressure driver with a simple constitution, by adding a noise reduction carrier mixer to a servo amplifier and superposing a noise reduction carrier having a frequency higher than the audible frequency on a command signal. SOLUTION: A command signal 100 is supplied to an input terminal 14a of a servo amplifier 14 and then sent to a PWM amplifier 17 via an adder 15 and subtracter 16. Then, a PWM control signal is supplied to an exciting coil 13 from the amplifier 17. A sine wave oscillation circuit 20 is added to the amplifier 14, and a noise reduction carrier mixer consists of the circuit 20 and the adder 15. The oscillation output of the circuit 20 outputs a sine wave signal having the frequency higher than the audible frequency, and a noise reduction carrier 200 is superposed on the signal 100 via the adder 15.
Patent JP-H02133823-A (JP)
Title: Relative item retrieving system for knowledge arrangement editor
Inventor: MORISHITA TARO
IPC: G06F9/44
Filed: 1988-11-14
Abstract: PURPOSE:To easily verify the matchability of inter-item relation in the arranging process of knowledge by defining hierarchically the relation between items in multiple names, and retrieving the relative items based on the higher rank concepts and different concepts of the defined relation names. CONSTITUTION:A retrieving means 5 consists of a relation defining/changing means 7 which defines the relations among items via a graphic editor (capable of editing rectangles and segments) and a text editor and an object retrieving means 6 which retrieves actually the item objects of a graphical net by reference to the defined relations. Thus it is possible to retrieve a specific item that links a certain item via a specific relation. This relation can be hierarchically defined in multiple names, and the questions are possible with the higher rank concepts and in different viewpoints. As a result, the matchability of relations can be verified graphically and easily among items in the arranging process of knowledges.
Patent JP-H06135865-A (JP)
Title: Production of methyl chloride
Inventor: TSUJI KYOKO
IPC: C07B61/00
Filed: 1992-10-27
Abstract: PURPOSE:To produce methyl chloride in high efficiency by reacting an aqueous solution of hydrochloric acid with methanol under a relatively mild condition to cause little corrosion problem. CONSTITUTION:Methyl chloride is produced from an aqueous solution of hydrochloric acid and methanol' by using a catalyst consisting of a polystyrene resin having sulfonic acid group or an amine salt of a polystyrene resin having sulfonic acid group.
Patent JP-H01130105-A (JP)
Title: Optical digital filter
Inventor: KITAYAMA KENICHI
IPC: H04B10/50
Filed: 1987-11-16
Abstract: PURPOSE:To reduce the size of the title filter and to improve the stability thereof with good controllability and reproducibility by providing plural optical coupling parts formed by two light guides on the same substrate and connecting these parts respectively by the light guides, then interposing an optical delay element in the juncture of either thereof. CONSTITUTION:The plural optical coupling parts 13 consisting of the optical switches formed on the two light guides 12 are provided on the same substrate 11. Either one light guide 12 of the one optical coupling part 13 and either one light guide 12 of the other optical coupling part 13 are connected to each other on one or the other end by the light guide 12 and the optical delay element 14 is interposed in either one juncture. Namely, the optical coupling part 13-1a is so formed that the coupling quantity of the light pulse inputted from an input terminal X1 to the light guide 12-1a increases from the direction of an arrow A toward an arrow B in proportion to the voltage impressed to an electrode 20 from a control signal part 14-1a. The value of the coefft. of multiplication is, therefore, controllable by the impressed voltage. The controllability, reproducibility and stability are thereby improved and the size is reduced.
Patent JP-H04162743-A (JP)
Title: Semiconductor integrated circuit
Inventor: MERA RYUTARO
IPC: H01L21/66
Filed: 1990-10-26
Abstract: PURPOSE:To facilitate measurement of breakdown strength of an oxide film by providing a breakdown strength monitor element connected to a breakdown strength measuring probe through a measuring electrode formed on a monitor gate oxide film to have a conductive layer electrically independent of a normal transistor element. CONSTITUTION:The thickness of a monitor gate oxide film 8 is designed to be thinner than the thickness of a normal gate oxide film of a MOS transistor designed on a semiconductor substrate 6. A polycrystalline silicon layer 9 is brought at its diode electrode 1 into contact with a probe 3, but independent from a normal transistor circuit. A power source 2 is connected to the electrode 2 of the element through the probe 3, an ammeter 5, and a current value flowing between the electrode 1 and a GND 4 is measured by the ammeter 5. Accordingly, whether the film 8 has a satisfactory breakdown strength or not can be confirmed. Thus, measurement of the breakdown strength of the oxide film can be facilitated.
Patent JP-H07141379-A (JP)
Title: Translation device
Inventor: YAMADA YUTAKA
IPC: G06F17/28
Filed: 1993-11-18
Abstract: PURPOSE:To provide a translation device which improves the efficiency of the translation result editing work and properly translates an original text by outputting the original text and a translation with the end of a paragraph as the unit as the output of the translation result. CONSTITUTION:A display picture is erased, and 0 is written in a paragraph end counter 17c. The value of this counter 17c is increased by one, and it is discriminated whether or not original data 23 end of paragraph data 22 indicated by the value of the counter 17c is stored in a text memory 17a. If it is stored there, all of original data 23 of the data 22 indicated by the value of the counter 17c is displayed. Next, all of translation data 24 of the data 22 indicated by the value of the counter 17c is displayed. Thereafter, the processing is switched to S91, and the value of the counter 17c is increased by one, and these processings are repeated till all of the end of a paragraph are displayed.
Patent JP-H08145663-A (JP)
Title: Method and system for measuring verticality of structure
Inventor: KURODAI MASAHIRO
IPC: G01C15/00
Filed: 1994-11-24
Abstract: PURPOSE: To realize a highly accurate measurement not susceptible to weather without requiring any obstacle-free space in the vertical direction by obtaining the actually measured value of a reference position from GPS radio waves received at a reference position on the uppermost layer of a structure under construction and at a plurality of predetermined positions around the structure on the ground. CONSTITUTION: At first, point O is set at an appropriate position of a high rise building 20 on the ground surface and points A, B are set appropriate positions around the building on the ground surface. Correct position of each point is surveyed and the mutual positional relationship is previously determined. A reference position O' is then set, with reference to a design drawing, on the uppermost layer of the building 20 vertically to the point O. GPS receivers 1, 2, 3 installed at the points A, B and C are then controlled so that an analyzer computer 5 receives GPS radio waves simultaneously. Based on the previously inputted coordinate values at the points A, B and O, the computer 5 analyzes the GPS radio waves to determine the coordinate values at the position O'.  The coordinate values are transferred to a verticality control computer 6 where the shift of the position O' from the point O is determined and displayed.
Patent JP-S63136940-A (JP)
Inventor: ZEEMAN LEENDERT
IPC: H02K15/04
Filed: 1987-11-18
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-H06116900-A (JP)
Title: Mat coating material for wall paper
Inventor: KIYOFUJI MIZUYO
IPC: D06N7/00
Filed: 1992-10-02
Abstract: PURPOSE:To provide a mat coating material for wall paper, composed of polyvinyl chloride, specified resin particles and a plasticizer, excellent in dispersion stability in polyvinyl chloride and thermal stability and capable of exhibiting a sufficient matting effect without deformation or fusion. CONSTITUTION:The mat coating material for wall paper is obtained by blending (A) 100 pts.wt. polyvinyl chloride with (B) 1 to 50 pts.wt. fine resin particles (preferably fine spherical particle having 1 to 100mum average particle diameter) exhibiting >=150 deg.C softening point or heat deformation temperature and preferably composed of phenol resin fine particles and/or epoxy resin fine particles and (C) 20 to 150 pts.wt. plasticizer.
Patent JP-H07121055-A (JP)
Title: Fixing device and image forming device
Inventor: ONO KAZURO
IPC: G03G21/00
Filed: 1993-10-27
Abstract: PURPOSE:To provide a fixing device which can be used in every country with a different power-supply voltage without replacing a heater. CONSTITUTION:A 100 to 115V heating wire 71 and a 220 to 240V heating wire 72 are arranged inside a glass tube for a halogen heater, the two heating wires are selectively energized by an energizing switching device 70 in accordance with a voltage inputted to the heating wire, or the power-supply voltage, so that the fixing device can be used in common with reference to the power-supply voltages of 100 to 115V and 220 to 240V.
Patent JP-H04173591-A (JP)
Title: Burrying method for water storage container, and water storage container
Inventor: HIROSE YOICHI
IPC: E02D3/12
Filed: 1990-10-25
Abstract: PURPOSE:To burry a water storage container efficiently in the ground by a method wherein a thin cylindrical container made of a synthetic resin with a stretchable body wall, which keeps bellows shape, is placed in a hole under a condition in which the body wall is being stretched, and a filler such as curing soil, etc., is filled in a space around the container under a condition in which the wall is being backed up. CONSTITUTION:By filling a specified quantity of water in a water storage container A, internal pressure is generated, and a body wall 1 is locally stretched by the internal pressure. In order to make the body wall 1 stretch locally by the internal pressure, a cap 3 is fitted on an opening 2 to make the internal space an approximately sealed condition, and water is filled in the internal space. When the internal pressure is generated in the container A of which the body wall 1 is locally stretched, the stretched part of the body wall 1 is backed up by the internal pressure. Then, in a space around the stretched part of the body wall 1, a filler G such as curing soil, etc., is filled, and by doing this, the body wall 1 becomes hard to generate deformation such as being dented. By performing local stretching of the body wall 1 and filling of the filler G in a space around the stretched body wall 1 repeatedly by a necessary number of times, the body wall 1 is stretched to be high, and the filler G is filled around the body wall 1.
Patent JP-H05127076-A (JP)
Title: Focusing detection device
Inventor: KODAMA SHINICHI
IPC: G02B7/36
Filed: 1991-11-06
Abstract: PURPOSE:To raise the detection accuracy of MTF/AF system ratio by standardize the difference of frequency components with the sum thereof by extract the frequency component of 2 points of components such as a defocusing quantity and defocusing direction to be extracted by MTF/AF system. CONSTITUTION:Luminous flux from a subject is photoelectrically converted by a photoelectric converting element 2 and plural frequency components are extracted from the conversion output by a frequency detection device 3 and stored. An arithmetic unit 4 uses the frequency components outputted by the frequency detection device 3 to standardize the difference between the two frequency components with the sum of the two frequency components. A defocusing calculation device 6 calculates the defocusing quantity and the driving quantity of an optical system by according to the frequency component standardized value calculated by the arithmetic unit 4 and table values stored in a table 5. A driving device 7 drives the optical system 1 according to the driving quantity.
Patent JP-S63152385-A (JP)
Title: Novel 7-substituted-3-vinylcephalosporanic acid
Inventor: TAKATANI TAKAO
IPC: A61P31/04
Filed: 1987-11-17
Abstract: NEW MATERIAL:A compound expressed by formula I{R<1> represents formula II, formula III or R<3>-CH=N- [R<3> represents aryl; R<4> represents lower alkyl (substituted with carboxyl); R<a> represents protected amino; R<b> represents protected carboxy; R<c> and R<d> are linked with each other to represent (protected)oxo; X<1> represents halogen atom]; R<2> represents (protected)carboxyl} or salts thereof. EXAMPLE:Benzhydryl 7-benzylideneamino-3-vinyl-3-cephem-4-carboxylate. USE:An intermediate for producing a 7-acylamino-3-vinylcephalosporanic acid derivative having antibacterial action by oral administration. PREPARATION:A compound expressed by formula IV (R<5> represents aryl) or salts thereof is reacted with formaldehyde preferably in an inert solvent such as THF, etc.
Patent JP-S63142270-A (JP)
Title: Speed detector in vector controller for induction motor
Inventor: ASHIKAGA TADASHI
IPC: H02P21/04
Filed: 1986-12-05
Abstract: PURPOSE:To improve unevenness in extremely low speed rotation by reducing speed detection ripple generated by sampling errors and the like by conducting filter calculation only in the extremely low speed rotation and to obtain good response by passing the filter calculation in the transitional condition of speed setting command. CONSTITUTION:Frequency signals corresponding to the rotational speed of an induction motor are led out and the rotational speed is calculated on the basis of the count and the period of reference clocks corresponding to the frequency signals. Filter calculation is conducted on the rotational speed under the condition that the rotational speed is lower than an arbitrarily set filter calculation speed. Further, arithmetic processing is conducted under the condition that the differential values of the induction motor and speed setting are not larger than prescribed values. Filter calculation is conducted on speed detection ripple only in extremely low speed and the filter calculation is passed in the transitional condition of speed setting command whereby good response can be obtained in any of stationary and transitional conditions.
Patent JP-H03155366-A (JP)
Title: Synchronous switching power supply
Inventor: SAKURAGAWA YUICHI
IPC: H02M3/00
Filed: 1989-11-08
Abstract: PURPOSE:To prevent troubles due to beat frequency easily by interconnecting the synchronous terminals of a plurality of switching power supplies incorporating oscillator circuits thereby discharging a capacitor in the oscilator circuit quickly based on a synchronous signal. CONSTITUTION:Synchronous terminals 26 of a plurality (two in the Figure) of switching power supplies 21, 22 incorporating oscillator circuits 23 are interconnected. When an oscillator capacitor 1 is charged with a predetermined peak value through function of the oscillator circuit 23, a synchronizing signal is provided from a synchronizing signal generating circuit 27 and a switch 30 for a discharge circuit 28 is closed. Consequently, the capacitor 1 is discharged quickly through a counter flow preventing diode D29 and the switch 30, and the voltage across the capacitor 1 drops to a level equal to the sum of a reference voltage V and the voltage drop of D29. Upon elapse of a predetermined short time, the switch 30 is opened to resume charging operation. Consequently, the oscillator capacitors 1 in respective power supplies are discharged simultaneously and quickly thus preventing trouble due to beat frequency.