baber/WOPTO huggingface dataset:
Patent JP-H01166590-A (JP)
Title: Manufacture of semiconductor laser
Inventor: NAKATSUKA SHINICHI
IPC: H01S5/00
Filed: 1987-12-23
Abstract: PURPOSE:To acquire a layer having a small light absorption index and a good junction reverse characteristics and to reduce optical loss and leak current of a window layer of a semiconductor laser by using an high concentration impurity added layer previously formed at a stage of crystal growth as a diffusion layer. CONSTITUTION:After an n-Ga0.5Al0.5 clad layer 2, a quantum well structure active layer 3, a p-Ga0.5Al0.5As clad layer 4, and an n-GaAs light absorbing layer 5 are caused to grow on an n-GaAs substrate 1 of a semiconductor laser, the layer 5 is selectively removed to form a striped pattern. The layer 4 in an area near a laser edge side is made thin a desired thickness by applying another photolithography and burying growth is carried out to form three layers of a p-Ga0.5Al0.5As layer 6, a p-Ga0.5Al0.5As layer 7 and a p-GaAs cap layer 8. Annealing at a desired temperature within a crystal growth furnace is conducted, and a crosswise and lengthwise cross sectional structure of laser stripe is formed. In this way, it becomes possible to control edge side deterioration caused by rising of a edge side structure due to light absorption of the edge side.
Patent JP-H05155220-A (JP)
Title: Suspension device for vehicle
Inventor: BUTSUEN TETSUROU
IPC: B60G17/015
Filed: 1991-12-09
Abstract: PURPOSE:To prevent unnecessary changeover of damping factors while effectively producing a damping force, and to prevent the occurence of chattering or the like by providing a lower-limit threshold value changing means by which the lower-limit threshold value within a prescribed range is lessened as the damping factors of shock absorbers being selected at the present time are less. CONSTITUTION:When the difference between the actual damping force and the target damping force of shock absorbers 1 to 4 is within a prescribed range, the change control of a control means is forbidden by a forbidding means. Thereby, the frequent change of the damping factors of the shock absorbers 1 to 4 can be prevented. In addition, the lower-limit threshold value within a prescribed range is changed by a lower-limit threshold value changing means so as to be lessened as the damping factors of the shock absorbers 1 to 4 being selected at the present time are less, so that the frequent change of the damping factor to the input of a small external force can be prevented.
Patent JP-H02258751-A (JP)
Title: Prodrug of 3,4-hydroxybenzoyloxypropanolamine
Inventor: GAANSHIYAIAMU PATEIRU
IPC: A61K31/16
Filed: 1989-12-15
Abstract: In accordance with the present invention, disclosed herein are compounds of the formula <CHEM> wherein R is straight or branched loweralkyl, R1 is hydrogen, straight or branched loweralkyl, lowercycloalkyl, amino, loweralkoxy or acylamino, and R2 is straight or branched loweralkyl, amino, cyclohexyl, morpholino, piperidino, tetrahydrofuranyl, dihydrofuranyl, tetrahydropyranyl, dioxolanyl, 2,2-dimethyl dioxolanyl, dioxanyl, pyrrolidinyl, tetrahydrooxazolyl, and dihydrooxazolyl, and pharmaceutically acceptable salts thereof. The compounds are useful in the treatment of glaucoma.
Patent JP-H09161004-A (JP)
Title: Document editing device
Inventor: OSUGA NORIYUKI
IPC: G06K9/03
Filed: 1995-12-13
Abstract: PROBLEM TO BE SOLVED: To provide a document editing device capable of easily correcting a character in the case that the character kinds of the character before correction and the character after the correction are different and character shapes are similar. SOLUTION: When a user selects the character to correct a certain character in a document displayed on a liquid crystal tablet 10 to the other character whose character kind is different and character shape is very similar and instructs the character kind to be changed by a character kind change part 20, a font transmission part 40 transmits the character shape of the selected character to a character recognition part 50 and the character recognition part 50 character-recognizes the transmitted character shape of a font as the character of the character kind instructed in the character kind change part 20 while referring to a recognition dictionary 60.
Patent JP-H02170640-A (JP)
Title: Abnormality detecting system in loop network
Inventor: SEGAWA YUKIHIRO
IPC: H04L12/42
Filed: 1988-12-22
Abstract: PURPOSE:To allow a master station to easily specify an abnormal part by receiving only abnormality detection discriminating data from a child station nearest to the abnormality generating part by means of the master station. CONSTITUTION:When the date are not received by a receiver 1, a communication abnormality detecting part 6 confirms whether or not the data are not received for >= a constant time, when the data are not received for >= a constant time, it judges that the abnormality has occurred, and inputs an abnormality detecting signal to a communication control part 5. The communication control part 5 transmits the abnormality detection discriminating data read from an abnormality detection discriminating data storage part 7 through a transmitter 2 to the next child station. The next child station repeates the abnormality detection discriminating data when it receives the abnormality detection discriminating data from the previous child station. Thus, only the abnormality detection discriminating data of the child station 2 nearest to the disconnection part are transmitted to the master station, and the master station can specify the abnormal part based on the child station number of the abnormality detection discriminating data.
Patent JP-H05159096-A (JP)
Title: Booklet original reader
Inventor: OKITA YOSHINORI
IPC: B42D9/06
Filed: 1991-12-09
Abstract: PURPOSE:To provide a booklet original reader which prevents generating the curving part of a booklet original and can accurately read any area of the booklet by making the original placing side of the cross-section of an original plate to be the shape of a character-V of a low grade and allowing a traveling character reader to travel along the shape of the character-V. CONSTITUTION:The sticking image sensor 15 of OCR reads the opened page of a book B placed along the shape of the character-V of the original plate 11. At this time, the surface to be read of the book B is mostly flat so that it can accurately be read. Then, as the original placing side of the cross-section of the original plane 11 is made to be the shape of the character-V of a low grade in the booklet original reader, the cover of the booklet is fitted to the V-shape to be in a natural state at the time of placing the booklet original on the original plate. Thus, both sides of the booklet in the state where the pages before/after the opened page are not pulled by a stitching part are flatly placed on the V-shape.
Patent JP-H02171418-A (JP)
Title: Pile press-fitting machine
Inventor: KATO NAOAKI
IPC: E02D7/16
Filed: 1988-12-22
Abstract: PURPOSE:To make it possible to reduce costs by enabling a leader support jib to be extended and retracted and to be folded so that the leader support jib can retract and restore its external shape by itself so that the disassembly thereof is not required during transportation thereof. CONSTITUTION:A jib 3 on a vehicle is composed of a base jib 3a, a slidable jib 3b and a front end jib 3c which a slidably supports a leader 1. Further, during transportation the slidable jib 3b is retracted so as to lower the rotational center of vertical swing motion of the leader 1, and then the front end jib 3c is folded toward the side remote from the leader 1 by means of a link mechanism 50, and accordingly, the leader 1 is laid horizontally on the body of a vehicle. Further, during working the jib 3 is expanded and then extended so as to stand and support the upper section of the leader 1, and a lock mechanism is provided so as to prevent accidental retraction of the slidable jib 3b. With this arrangement, the external shape of a machine incorporating the leader can be contracted without the leader being removed, and accordingly, it is suitable for use in a narrow job site. Further, it is possible to reduce the labor cost and the mechanical cost incurred by the disassembly of the jib during transportation.
Patent JP-H01166018-A (JP)
Title: Curved liquid crystal panel and its production
Inventor: KAMIMURA TSUYOSHI
IPC: G02F1/1333
Filed: 1987-12-22
Abstract: PURPOSE:To make the cell thickness uniform and to make a liquid crystal panel strong against the external pressure by curving upper and lower substrates and fixing them in this state with adhesive layers arranged on substrates. CONSTITUTION:Plural substrates one of which is transparent are curved and a liquid crystal layer is held between them in this state, and they are fixed by adhesive layers arranged on substrates. That is, a substrate 13 provided with a seal part 12 is put on a substrate base 11 on which a curved surface is preliminarily formed, and a substrate 14 is stuck along the base. A pressure 15 is applied from the external to completely adhere substrates 13 and 14 to the substrate base, and they are hardened by heating. Thus, the cell thickness is made uniform and the liquid crystal panel is made strong against the external pressure.
Patent JP-H02168141-A (JP)
Title: Evaluating method for silicon crystal
Inventor: KANEDA CHIHOKO
IPC: G01N21/3563
Filed: 1988-12-21
Abstract: PURPOSE:To enable measurement of impurities such as oxygen and carbon in an n-type silicon crystal by a method wherein hydrogen atoms are introduced into the silicon crystal by heating to 400 deg.C in an ambience of hydrogen, by cooling down gradually to 100 deg.C thereafter and by cooling further rapidly to a normal temperature. CONSTITUTION:An n-type silicon sample 1 is supported at its peripheral part by the inner edge of a stage 3 and disposed in a treating chamber 2. Next, hydrogen atoms produced in a hydrogen atoms supplying device 4 by ion plasma are introduced into the treating chamber 2 from its gas supplying port 2a, and the sample 1 is heated to 400 deg.C by a heater 5 of a resistance heating type and subjected to heat treatment for 40 hours in the ambience of the introduced hydrogen atoms. Then, the sample 1 is cooled down gradually to 100 deg.C, taken out of the treating chamber 2 and cooled down rapidly to a room temperature in the air. By this treatment, all donor impurities such as P and As contained in the sample 1 are turned to be inactive. By measuring the intensity of an infrared absorption peak caused by vibrations of impurities such as oxygen and carbon, accordingly, the concentration of the impurities such as oxygen and carbon can be determined.
Patent JP-H03185478-A (JP)
Title: System for controlling toner replenishment for printing device
Inventor: SETO FUMIAKI
IPC: G03G15/08
Filed: 1989-12-14
Abstract: PURPOSE:To prevent such a situation that the replenishment of toner does not become good enough even in the case that printing density is made high and also to prevent the occurrence of an overline in controlling the concentration by deciding the printing density based on printing information and controlling the toner replenishing quantity in accordance with the printing density. CONSTITUTION:The printing density is decided by an MCPU 2 functioning as a control part based on the printing information from a controller and the toner replenishing quantity is controlled in accordance with the printing density. That means, a toner mark is detected by a toner detector 16 several times(N times), and in the case of deciding that the concentration of the toner is thinner the half or more of N times, the amount of the toner which is enough for single usage is replenished to a developing device 13 from toner hopper 13a. On the other hand, in the case of deciding that the concentration of the toner is thicker the half or more of N times, the double usage of the toner is replenished to the developing device 13. Thus, the toner is replenished in accordance with the printing density, that means, the consumed quantity of the toner.
Patent JP-H05157630-A (JP)
Title: Method and instrument for measuring light wavelength switching characteristic
Inventor: SHIBATA NOBURU
IPC: H04B10/07
Filed: 1991-12-09
Abstract: PURPOSE:To easily measure the wavelength switching characteristics, wavelength variation, and wavelength switching speeds of laser light sources which can be continuously or discontinuously swept. CONSTITUTION:Two luminous fluxes of different light frequencies are obtained by shifting the frequencies of rays of light from laser light sources (1-1)-(1-n) by means of a light frequency shifter 6 and an interferometer 8-10 is constituted by using the two luminous fluxes. The position of the interferometer 8 is adjust so that a difference can be generated between the two optical paths of the interferometer and a photodetector 12 detects a beat optical signal which is generated on the output surface of the interferometer as a result of interference between the two luminous fluxes and equal to the frequency-shifted amount by means of the shifter 6 and converts the signal into a beat electric signal. Then the wavelength variation and wavelength switching speeds of the laser light sources are found by performing frequency discrimination by means of a frequency discriminator 13 the center frequency of which coincides with the frequency-shifted amount by means of the shifter 6 and processing the output signal of the discriminator 13 by means of processing means 14, 15, and 16.
Patent JP-H11163822-A (JP)
Title: Ofdm receiver
Inventor: YAMAMOTO AKIO
IPC: H04J11/00
Filed: 1997-11-26
Abstract: PROBLEM TO BE SOLVED: To provide an OFDM receiver that suppresses a noise component to enhance the S/I even in the case that a digital filter such as an FIR filter is employed for the interpolation system. SOLUTION: A guard period discrimination device 18 discriminates a guard period of a received signal and selects a band width of an FIR filter provided to an interpolation circuit 17 based on the discrimination result so as to set an optimum band width to the guard period. Thus, an estimate transmission line response is optimized thereby suppressing a noise component through a complex division of the received data signal at a complex divider 13 and enhancing the S/I.
Patent JP-H08101804-A (JP)
Title: Memory device
Inventor: SOUKADO JIYUNJI
IPC: G06F13/16
Filed: 1994-12-27
Abstract: PURPOSE: To reduce a processing quantity and a memory quantity and to lighten the load of software development by providing plural memory cells, an address decoding circuit, and a connection circuit which controls connections between the respective memory cells and an input/output bus. CONSTITUTION: The memory device consists of the address decoding circuit, an address signal source 11, an address decoding control signal line 12, row and column address lines 13a-13d, the memory cells 14a-14d, data lines 15a-15d, the connection circuit 16, an input/output control signal line 17, a connection control signal line 18, and data buses 19a-19d. Then the address decoding control signal line 12 and a memory constitution control signal line 20 are connected to the address decoding circuit 10, which generates row and column address signals for the respective memory cells 14a-14d; and the connection circuit 16 controls connections between the data lines 15a-15d and buses 19a-19d according to the values of the address signals.
Patent JP-H03185487-A (JP)
Title: Gas discharge driving type display device
Inventor: SUGAWARA MOTOO
IPC: G02F1/055
Filed: 1989-12-15
Abstract: PURPOSE:To realize simple matrix driving with a few crosstalk by housing a PLZT display body in gas discharge space, and driving it with gas discharge characteristic with remarkable threshold characteristic. CONSTITUTION:When a voltage for display is applied between prescribed column electrode 16 and row electrode 18, one corresponding display picture element S goes to be equivalent to the one in which an alternating pulse voltage supply power source 40 is connected between corresponding electrodes 16, 18. Therefore, when the voltage between the discharge plane of the discharge electrode 30 of the row electrode 18 and the discharge plane 26 of the PLZT display body 20 exceeds a discharge start voltage, discharge is started. Such discharge characteristic displays the remarkable threshold characteristic, therefore, the simple matrix driving without generating the crosstalk can be performed. When the discharge is started and a prescribed amount of charged particles are accumulated on the discharge plane 26, the prescribed display of the display body 20 can be performed.
Patent JP-H02172030-A (JP)
Title: Optical information recording and reproducing device
Inventor: OUCHIDA SHIGERU
IPC: G11B7/09
Filed: 1988-12-23
Abstract: PURPOSE:To improve the detection accuracy of a signal by respectively detecting the zero-order and the 1st-order diffracted light of light reflected from a medium which is passed through two linear dual gratings with the aid of a three splitted light receiving element. CONSTITUTION:The light reflected from a magneto-optical disk becomes convergent light by a condensing lens 23. It is made incident on the first diffraction grating 24 of the dual grating 22 and the polarization direction thereof is changed. Then, it is splitted to two light of the zero-order light T which goes straight on without being diffracted and the 1st-order light K which goes on after it is diffracted. Next, by the second diffraction grating 25, the light T goes straight on without being diffracted and the light K goes on after it is diffracted more. Since both gratings 24 and 25 do not have a converging function, the condensing positions of the light T and K are decided by the lens 23 and the images thereof are respectively formed on condensing points P and Q. Therefore, by respectively making the light T and K incident on the three splitted light receiving elements 27 and 28 of a photodetector 29, a focus error signal and a tracking error signal are obtained with high accuracy.
Patent JP-H03185415-A (JP)
Title: Stereomicroscope
Inventor: KITAJIMA NOBUAKI
IPC: G02B21/06
Filed: 1989-12-14
Abstract: PURPOSE:To make the turbid part of the eye lens easy to find out by performing observation with a left visual field and a right visual field and to make the operation of cataract easy to be performed by providing first and second illumination optical systems centering the optical axes of first and second observation optical systems. CONSTITUTION:The first and second illumination optical systems 60, 61 illuminating an eye 22 to be inspected are provided centering the optical axis 23a of the first observation optical system 23 and the optical axis 24a of the second observation optical system 24. The first illumination optical system 60 is comprised of a half mirror M, a projection lens 50a, a diaphragm 54a, a condenser lens 51a, a light guide tube 52a, and an illumination lamp 53, and the second illumination optical system is comprised similarly. Thereby, it is possible to perform the observation with the left visual field and the right visual field by setting a pupil area at uniform brightness, and to easily perform the image fusion of both eyes of the left visual field and the right visual field. Therefore, the turbid part of the eye lens can be easily found out, which enables the operation of the cataract to be easily performed.
Patent JP-H09165572-A (JP)
Title: Red luminiferous fluorescent material with red color pigment
Inventor: NISHIZAWA KENICHI
IPC: C09K11/02
Filed: 1995-12-14
Abstract: PROBLEM TO BE SOLVED: To obtain a red luminiferous fluorescent material with red color pigment having an excellent luminiferous brightness and manifests no change in the red color of a fluorescent membrane with time and can retain the filter effect when this red luminiferous fluorescent material with red color pigment is used in a cathode ray tube. SOLUTION: This is a luminiferous fluorescent material with red color pigment made by accretion of an α-Fe2 O3 pigment having the half value of diffraction peak of <=0.4 at the (200) face of the X-ray diffraction image measured by CuKα tube and having an average particle size of 0.005-0.1μm.
Patent JP-H02172448-A (JP)
Title: Catheterization table easy to control setting of position
Inventor: TAEN IPPEI
IPC: A61B6/04
Filed: 1988-12-26
Abstract: PURPOSE:To improve operability to set an X-ray see-through photographing position by a method wherein unlocking during manual movement of a double table top is effected by using two switches individually or in combination. CONSTITUTION:With a switch a15 pressed, the contact of the switch a15 is closed and a control signal I1 from a switch (a) is brought into an H-state. When the switch a15 is in an inoperative state, the control signal H1 from the switch (a) is brought into a L-state. With b16 pressed, the contact of the switch b16 is closed and a control signal I2 from a switch (b) is brought into an H-state. When the switch b16 is in an inoperative state, the signal I2 from the switch b16 is brought into an L-state. When the control switches a15 and b16 of a handle controller 14 are operated, outputs 01, 02, and 03 from a decoder are changed into H/L according to a control state signal, a corresponding electromagnetic brake is turned ON/OFF. According to operation of the electromagnetic brake, longitudinal movement of a first table top 2 and longitudinal movement and lateral movement of a second table top 3 are unlocked or locked.
Patent JP-H02172816-A (JP)
Title: Production of silver halide grain and device therefor
Inventor: ICHIKAWA YASUNORI
IPC: C01G5/02
Filed: 1988-12-26
Abstract: PURPOSE:To uniformize the halide composition in the silver halide crystal and to eliminate the halide distribution between the grains by removing a part of the water and water-soluble compd. from a liq. contg. silver halide grains, and supplying the concd. liq. to a reaction vessel. CONSTITUTION:The aq. soln. of a water-soluble silver salt, aq. soln. of a water- soluble halide, and aq. soln. of a protective colloid in preparation tanks 14-16 are supplied to a mixer 7 through addition lines 4-6 while controlling their flow rates by flowmeters 13a-13c and flow control pumps 17a-17c, and rapidly and strongly mixed to form silver halide grains. The soln. contg. the fine grains is supplied to a concentrating means 12 through an inlet line 8 to remove a part of the water and water-soluble compd., and concentrated. The concd. soln. is introduced into the reaction vessel 1 to form the nuclei of the silver halide grains and/or to grow the crystals.
Patent JP-H08173541-A (JP)
Title: Tube for ileus
Inventor: ENOKI KENJI
IPC: A61J15/00
Filed: 1994-12-27
Abstract: PURPOSE: To prevent gastric content reflux to esophageal side and excrete to outside of a body effectively. CONSTITUTION: A gastric balloon 10 which occludes the upper opening part of gastric opening and prevents gastric content reflux to esophagus side is formed on a tube body 2 which is placed on a rear end side in a specified length from an enteric balloon 5 of a tube for ileus 1, and also plural aspirating holes for aspirating the gastric contents are formed thereon. A lumen which communicates with the gastric contents aspirating hole 11 is formed in the axial direction of the tube body 2 in communication with the rear end opening part of the tube body 2, as well as making the lumen for expanding the gastric balloon 10 formed in the axial direction of the tube body 2 in communication with the rear end opening part of the tube body 2.