baber/WOPTO huggingface dataset:
Patent JP-S643832-A (JP)
Title: Optical head device
Inventor: TODE HIDEKAZU
IPC: G11B7/135
Filed: 1987-06-25
Abstract: PURPOSE:To improve the SN ratio of a playback signal by forming a holographic element in such a grating shape that diffracted light forms an elliptic convergence spot which is thin and long in the line direction of information tracks on an information recording medium. CONSTITUTION:The grating shape of the holographic element 6 is so formed that the grating period decreases gradually in the direction (y) of information tracks about A as a line of symmetry. Unnecessary diffracted light which is astigmatic luminous flux equivalent to reflected luminous flux 7 converged by a condenser lens 7 forms a vertical focus line in the line direction of the information track 5 at a position (t') conjugate to a position (t) as the focus of the line direction of the information track 5, thereby projecting the elliptic convergence spot 11. Consequently, information can not be read with the unnecessary diffracted light and even if the light is photodetected by a photodetector 8, it does not cause the generation of a noise in an original signal.
Patent JP-S5783916-A (JP)
Title: Sound absorbing material for surface acoustic wave element
Inventor: FUJIWARA YOSHIAKI
IPC: H03H3/08
Filed: 1980-11-12
Abstract: PURPOSE:To obtain high performance and to reduce the size of an element on the whole by reducing the necessary amount of a sound absorbing material by increasing a sound absorption coefficient, by using resin which contains a 25- 45wt% inorganic substances whose grain size is one-tenth the wavelength of an elastic surface wave. CONSTITUTION:In resin selected among oleoresin, epoxy resin, acrylic resin, phenollic resin, and ''Teflon '' resin, a 25-45wt% inorganic substance whose gr ain size is one-tenth the wavelength of a surface acoustic wave is contained to obtain a sound absorbing material 7, which is applied between transducers 2 and 3, and the end surfaces of a substrate. As the inorganic substance, a piezoelectric substance, such as LiTaO3, LiNbO3, and Cd3GaO12, an oxide of a nonpiezoelectric dielectric substance, such as SiO2, Al2O3, MnO2, and CaO, or a metal, such as metallic salt, is used.
Patent JP-S642450-A (JP)
Title: Toner signal reception system
Inventor: NAKAMURA HIROSHI
IPC: H04L27/26
Filed: 1987-06-25
Abstract: PURPOSE: To cope speedily with even variation in the signal interval of tone signals without limiting the combination of tone signal frequencies of a tone signal sequence by sampling and inputting the center point of the tone signal according to the mean signal interval of a least input tone signal sequence.  
     CONSTITUTION: Frequency detecting circuits 1.1∼1.10 are provided which detect individual frequency components f1∼f10 assigned to respective tone signals constituting an input tone signal sequence consisting of the time-series tone signals. Respective frequency detection outputs B1∼B10 are inputted to and processed by a signal processing circuit 2 as necessary. A state change detecting circuit 3 inputs the respective frequency detection outputs B1∼B10 and generates a state change signal C. An input timing signal generating circuit 4 integrates the reception intervals of the state change signal C and calculates the ratio of the integral time and the input number of tone signals in the integral time when the input signal sequence ends and uses the ratio as the mean signal interval of the tone signals. This mean signal interval is the fetch timing D of the tone signals to the signal processor 2. 
     COPYRIGHT: (C)1989,JPO&Japio
Patent JP-S5947780-A (JP)
Title: Lead frame for semiconductor
Inventor: TSUNEHIRO TOSHIKATSU
IPC: H01L23/48
Filed: 1982-09-13
Abstract: PURPOSE:To contrive to improve the yield of products by improving dimensional accuracy by a method wherein a tapered swell-out psrt is previously formed by means of a jig, immediately after a reinforcement filament is formed, and the internal angular part of the intersection with the conductive strip on the free end side is formed thereby, and next the reinforcement filament and the conductive strips are formed by the process of press-punching. CONSTITUTION:As the element material is fed to right, the unit molds by press-punching are successively punched, and accordingly the conductive strips, the reinforcement filament 4, a metallic piece 1, and through holes 3, 3 provided thereon are formed. Then, it is pressed by means of a joint die of the first molding jigs 13a and 13b. This jig has cavities 14; the conductive strips have the cross-section of a quadrangle after pressing molded into an octagon, and at the same time the tapered swell-out part 15 is formed at the corner of the intersection on the free end side of a lead by the intersection of the strip and the reinforcement filament. Molding is performed by means of the second molding jigs 16a and 16b, and then correction is performed to the side of the reinforcement filament wherein a pitch is formed to P' slightly smaller than a normal pitch P and the extension due to processed strain is generated thereby, resulting in the normal dimension P.
Patent JP-H061002-A (JP)
Title: Automatic adjustment method for writing position
Inventor: SAWAYAMA NOBORU
IPC: G03G15/00
Filed: 1992-06-17
Abstract: PURPOSE:To adjust the deviation of position of a toner image and lessen color shearing by adjusting the letter position of a writing device to an image carrier based on the sensing result of overall reflected rays of a photosensor. CONSTITUTION:A sensitizing drum 21 is charged uniformly by a charger 22, and then laser beam 24 is emitted by a writing device 23 to form the electrostatic latent image of a first color pattern. The electrostatic latent image is developed by a developing instrument 25 to form a first color toner image pattern. The sensitizing drum 21 is charged uniformly by a charger 26, and then laser beam 27 is emitted by the writing device 23 to form the electrostatic latent image of a second color pattern on the first color toner pattern. The latent image is developed by a developing stage 28 to form a second toner image pattern. Thus a toner image pattern is formed by means of the first color toner image pattern and the second color toner image pattern.
Patent JP-2000089142-A (JP)
Title: Optical switch
Inventor: HANE KAZUHIRO
IPC: B81B7/02
Filed: 1999-06-04
Abstract: PROBLEM TO BE SOLVED: To curtail assembly work and to reduce a size by integrally forming plural members constituting an optical switch body from one blank. SOLUTION: When a power source is supplied to a power source terminal, magnetic force is generated in an electromagnet 7 to attract magnetic members 6 built into barrels 3a and 3b to one side. When optical fibers 5a and 5b are attracted toward the left, the barrels 3a and 3b move to prescribed positions. The end faces of the optical fibers 5a and 5b arranged in contact with the barrels 3a and 3b move by accompanying the movement, causing the optical fiber 5b to part from the optical fiber 5c and aligning the end of the optical fiber 5a to the end of the optical fiber 5c. As a result, the optical fiber 5c is connected to the optical path on the optical fiber 5a side. At this time, the end of the optical fiber 5c is housed in a V-groove 4a formed at the barrel 3a and the stable state is maintained.  When the power source supply is stopped, the optical fibers 5a and 5b are returned to the intermediate positions by the elastic force of beams 2a, 2b.
Patent JP-H0450236-A (JP)
Title: Evaluation of dispersion state of conductive powder and preparation of conductive resin material
Inventor: AZUMA MIKIO
IPC: C08K3/02
Filed: 1990-06-15
Abstract: PURPOSE:To prepare the subject material having a stable quality and useful as an electro-magnetic shielding material, etc., by stable preparation operations by compression-molding a part of a product mixture during or after the mixing process and subsequently measuring the impedance and volumetric inherent resistivity of the molded product to evaluate the dispersion of an electro- conductive material. CONSTITUTION:In a method for preparing a conductive resin material by dispersing or mixing the powder of a resin [e.g. (meth)acrylic resin; preferably a particle size of 8-20mum] and the powder of a conductive material such as the powder of a metal, carbon, titanium dioxide coated with a metal such as silver, etc., with a high shear force or high compression force, a part of the mixture is compression-molded during or after the mixing process and the impedance and volumetric inherent resistivity of the compression-molded product is measured to evaluate the dispersion state of the conductive powder for the preparation of the objective material.
Patent JP-S5493379-A (JP)
Title: Drive system for semiconductor light emitting device
Inventor: HANAMITSU KIYOSHI
IPC: H01S5/00
Filed: 1977-12-30
Abstract: PURPOSE:To generate the optical pulse in sub-nano second with a simple unit easily, by applying the pulse having the amplitude of kink phenomenon to the semiconductor laser, and picking up the light via the uni-mode light guide as narrow pulse. CONSTITUTION:It is not necessary that the width of the pulse current generated with the drive source 2 producing current pulse can be narrow so much, and the semiconductor laser 1 connected to the drive source 2 produces kink, and it is constituted with the uni-mode optical guide 3 delivering the output light. By changing the amplitude of the current pulse from this drive source 2, the width of output light pulse can be controlled, making unnecessary the current pulse narrow in the width and having high peak value. Thus, the kink phenomenon is positively utilized and the optical pulse in sub-nano sec can easily by generated with a very simple  unit.
Patent JP-H05314876-A (JP)
Title: Temperature switch
Inventor: ASADA ISAMU
IPC: H01H37/34
Filed: 1992-05-07
Abstract: PURPOSE:To provide a temperature switch which is so excellent in responsiveness that the lag of detection is very small by making the lower surface of a casing planer up to its peripheral end, and supporting a disc by means of projecting streaks, and thus improving conduction of heat from a subject to be inspected to the disc. CONSTITUTION:A temperature switch 10 is used with the lower surface of a casing 11 in contact with a planar subject 23 to be inspected and a disc 13 is deformed alternately in opposite directions by the temperature change of the subject 23 to be inspected, and thereby moves a rod 14 vertically so as to actuate a switch portion 16. In the temperature switch 10, the temperature change of the subject 23 to be inspected is first transmitted to the lower surface of the casing 11 and is then transmitted to the disc 13 through a protruding streak 12. The lower surface of the casing 11 of the switch 10 is a plane in contact with the subject 23 to be inspected up to its peripheral end, so its area in contact with the subject to be inspected is enlarged and heat conduction to the casing is good. Since the heat is conducted from the protruding streaks on both sides, the speed of conduction is about twice as high.
Patent JP-S5681306-A (JP)
Title: Hydrogenation of conjugated diene type polymer
Inventor: KUBO YOUICHIROU
IPC: C08F8/00
Filed: 1979-12-06
Abstract: PURPOSE: To selectively hydrogenate the carbon to carbon double bonds of titled polymer by use of a small amount of a catalyst, by employing, as the catalyst, a cataltst prepared by allowing a porous powder-form or granular carrier to simultaneously support Pd and at least one sepcified metal or nonmetal.  
     CONSTITUTION: A conjugated diene type polymer is dissolved in a solvent, and hydrogenated in an autoclave by use of catalyst prepared by allowing a porous powder-form or granular carrier to simultaneously support Pd and at least one member selected from the group consisting of Au, B, Al, Ga, Ce, Sm, Si, Ge, Sb, Mo, Te, W and Re. This catalyst has high activity and high selectivity, and therefore, a small amount of this catalyst performs the selective hydrogenation of carbon to carbon double bonds of a polymer. The hydrogeneated polymer has excellent weater resistance, ozone resistance, heat resistance and cold resistance, and has wide applications. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-H0323624-A (JP)
Title: Method and apparatus for vapor growth
Inventor: MORIZAKI MOTOJI
IPC: H01L21/205
Filed: 1989-06-21
Abstract: PURPOSE:To enhance an operation efficiency by a method wherein, simultaneously with a stop of an introduction operation of a rawmaterial gas, the same amount is introduced into a bent pipe and the inside of a supply pipe is evacuated forcibly. CONSTITUTION:A raw-material gas is introduced into a reaction furnace 1 through supply pipes 9 to 12 and gas introduction pipes 13, 14 from bombs 5 to 8; a pyrolytic reaction is caused on a substrate 2; a crystal growth operation is executed. A gas flow rate is controlled by using mass-flow controller 15 to 18. The inside of the furnace 1 is kept at 76Torr. The gas after the reaction is evacuated through an evacuation pipe 20. When the crystal growth operation is stopped, supply valves 21 to 23 are closed and, at the same time, H2 gas whose flow rate is the same as an introduction amount of the raw-material gas is made to flow into the pipes 13, 14 and to flow into bent pipes 42, 43 through the flow controllers 15 to 17 and bypass pipes 45 to 47; a pressure inside the pipes is kept identical and its change is suppressed. In addition, simultaneously with a closing operation of the valves 21 to 23, main valves 25 to 27 are closed; a high vacuum of supply pipes 9 to 11 is produced through vacuum evacuation pipes 30 to 32; a residual, gas is evacuated forcibly. Thereby, an operation efficiency can be enhanced.
Patent JP-H0449074-A (JP)
Title: Recording sheet
Inventor: FUJITA TAKESHI
IPC: B42D15/00
Filed: 1990-06-19
Abstract: PURPOSE:To omit the labor and time of optional or periodic cleaning by a user or a service man by cleaning the feed guide to which ink is bonded in a feed path at each time when a recording sheet is replaced by providing a bent part to at least one place to the part near to an end part. CONSTITUTION:Minute ink droplets are suspended in air to be bonded to a feed guide 8 and grown into an ink droplet 10 with the elapse of a use time to come into contact with a recording sheet and a formed image is contaminated with the ink droplet 10 to be markedly lowered in its grade. The black mark 11 showing the rear end of the image formable region of the recording sheet 1 is detected by a photointerrupter and control is carried out on the basis of the signal from the photointerrupter on the side of an apparatus so as to discharge the recording sheet up to the end part thereof. When the ink jet recording sheet 1 is fed from this state, the recording sheet 1 is fed while the bent part 12 thereof presses the feed guide 8 and the bent part 12 absorbs the ink droplet 10. At this time, since the ink absorbing layer of the recording sheet is present on the side of the guide 8, an ink absorbing rate is well and the ink bonded to a part other than the feed guide 8 in a feed path is also absorbed.
Patent JP-S6218340-A (JP)
Title: Direct current feeding device
Inventor: NOKI SADAJI
IPC: B60M3/06
Filed: 1985-07-18
Abstract: PURPOSE:To improve reliability against a trouble and the like which take place on the electric car line side by configurating a device in such a way that a diode bridge circuit is combined with a circuit breaker, both power running and regenerating current are allowed to flow by way of the breaker, and a diode series circuit is provided between a power running and a regenerative bus bar. CONSTITUTION:In a diode bridge circuit 41, the cathode side of diodes 42a and 42c is connected with a power running bus bar 3,and a thyristor 43 is con nected b4etween a node 44 on the cathode side and a node 45 on the anode side of diodes 42b and 42d. In addition, a diode series circuit 60 is provided where the anode side of a diode 61 is connected with the anode side of the diodes 42b and 42d, and the cathode side of a diode 62 is connected with the cathode side of he diodes 42a and 42c. And each of following odes such as one 46 between the diodes 42a and 42b, one 47 between the diodes 42c and 42d, and one 63 between the diodes 61 and 62, is connected with each of electric car lines 9a through 9c by way of each of direct current disconnecting switches 8a through 8c respectively. And the above said node 45 is connected with a regenerative bus bar 29 by way of a diode series circuit 30.
Patent JP-H0820307-A (JP)
Title: Pet restraining seat belt
Inventor: SAKAI MASATOSHI
IPC: B60R22/10
Filed: 1994-07-11
Abstract: PURPOSE:To prevent a pet from moving around beyond the movable range by connecting a pet restraining means for restraining the pet and a seat anchor fitting means formed into a seat buckle shape fittable to a seat anchor via a connecting means limiting the movable range of the pet. CONSTITUTION:This pet restraining seat belt is provided with a restraining band 11 having the length sufficient to be bound on the body of a pet for restraining it, and the restraining band 11 is provided with a fitting metal 12 for fitting a connecting rope 31 on the upper face and fitting belts 13 at both end sections. The pet restraining seat belt is also provided with a tongue plate 21 which is a member to be fitted to a seat anchor 40 provided on a seat, and the tongue plate 21 is provided with a tongue 22 couplable with the spring- excited lock plate of the seat anchor 40. The connecting rope 31 provided with a karabiner 32 at one end and a handle 33 at the other end is integrally connected to the tongue plate 21, and the karabiner 32 is hooked on the fitting metal 12 of the restraining band 11 to restrain the pet.
Patent JP-S6051077-A (JP)
Title: Decoding system of modified huffman code
Inventor: KACHI NOBUYUKI
IPC: H04N1/419
Filed: 1983-08-30
Abstract: PURPOSE:To highten processing speed of decoding and decode MH code sent at a high line speed by referring to decoding data only once and completing decoding of one code. CONSTITUTION:A microprocessor MPU4 is provided in a decoding system, and inputted modified Huffman MH code is accumulated temporarily in a buffer 1 for inputting by control of the MPU4. An ROM2 is connected to the MPU4 and a table necessary for decoding of MH code is stored. Further, a buffer 3 for outputting that temporarily accumulates decoded code controlled by the MPU4 is provided. A code length table by decoding information having code length information and the value of run length is provided in the ROM2. The table is referred only once and decoding of one code is completed. Thus, processing speed of decoding is heightened, and MH code sent at a high line speed is decoded.
Patent JP-H093987-A (JP)
Title: Underground fire hydrant
Inventor: SAKURAI YOSHIKI
IPC: F16L41/00
Filed: 1995-06-26
Abstract: PURPOSE: To simplify the structure of a water passage to reduce pressure losses during drainage and to enhance the reliability of a main valve by connecting a ball valve to a branch part that branches upward from a main pipe, and connecting a hydrant cap to the ball valve. CONSTITUTION: A branch part 24 having a ball joint 25 is made to branch upward from a main pipe 21 buried horizontally under the ground, and a ball valve 36 is connected to the branch part 24. A hydrant cap 38 is connected to the ball valve 36. A rotating part 37 is attached to the ball valve 36 and is operated from above, such as from the surface 22 of the ground, so that the valve element of the ball valve 36 can be opened and closed. Thus the branch part 24, the ball valve 36 and the cap 38 can be arranged on a straight line, resulting in the simplified structure of a water passage and reduced pressure losses during drainage.
Patent JP-S5583654-A (JP)
Title: Braking device of automobile
Inventor: TEZUKA TOKUO
IPC: B60T13/66
Filed: 1978-12-20
Abstract: PURPOSE: To allow high safety works for automobiles being in parking under ensured brake rocking action, by setting an electromagnetic valve for brake rocking in hydraulic pipe of power magnifying device.  
     CONSTITUTION: A braking device is constituted with a part of a master cylinder 2 and a rely valve 3 of power magnifying device 4 connected by a hydraulic pipe 6 of the power device and a part of the magnifying device and a brake wheel cylinder 5 connected by a hydraulic pipe 7. In this case, an electromagnetic valve 11 is set in the hydraulic pipe 6 and it is jointed seriesly with a driving switch 12 which is closed during the driving, a brake operation switch 13 which also is closed during the brake rocking and a sidebrake switch 14. The switch 14 is further linked with a memory circuit 17 which closes a contact point 16 when all switches 12W14 are closed. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-H1075465-A (JP)
Title: Digital video signal processor
Inventor: KIM YONG-JE
IPC: H04N9/79
Filed: 1997-06-16
Abstract: PROBLEM TO BE SOLVED: To record the black-and-white video signal of high resolution while removing noises by performing transform encoding through a signal compressor so as to encode a color signal only with the coefficient of a DC component when a compression control signal is inputted. SOLUTION: A black-and-white signal detection part 210 impresses the black- and-white detecting signal of an active high pulse to a control part 230. In this case, the control part 230 outputs the compression control signal to a data compression part 250 so that the data compression part 250 can encode shuffled video data only with a DC coefficient. At the same time, the control part 230 outputs black-and-white information to a modulator 270 corresponding to the detecting signal. In response to the compression control signal outputted from the control part 230, the data compression part 250 transforms the DC coefficient to a prescribed DC value and sets an AC coefficient as '0' in the DCT coefficients of color difference components (Cb and Cr).
Patent JP-H10295944-A (JP)
Title: Swing studying machine
Inventor: HIRATA MICHIYA
IPC: A63B69/36
Filed: 1997-05-01
Abstract: PROBLEM TO BE SOLVED: To easily learn a swing by constituting so as to express a swing form by a doll without touching the doll by moving an operation member. SOLUTION: Places changing by a swing are a turning angle of a trunk 7, a turning angle of a waist 12, a position of left and right legs 48, a longitudinal inclination of the trunk 7, a lateral inclination of the trunk 12, a position of left and right knees and a position of a grip. Then, a universal shaft 8 is connected to the trunk 7, and is rotated by moving a push bar 10. A hollow shaft 13 is also connected to the waist 12, and this is rotated by moving a push bar 15. A rotary shaft 11 of the trunk 7 is inserted into a slit of a slider having a slit, and a longitudinal directional inclination of the trunk 7 and a lateral directional inclination of the trunk 7 are changed by longitudinally moving the slider having a slit.  The grip is connected to the other slider through a string to which this is once joined, and the grip is pulled up through the string according to rotation of the trunk 7.
Patent JP-S643120-A (JP)
Title: Drug composition having inhibitory action on encephalopathy
Inventor: NARUTOMI HIROAKI
IPC: A61P25/28
Filed: 1987-06-26
Abstract: PURPOSE: To obtain the titled composition having inhibitory action on acidosis of brain tissue by ischemia, containing a specific piperazine derivative.  
     CONSTITUTION: The titled composition containing a compound shown by the formula (R 1  is H or lower alkyl; R 2  is OH, aralkyloxy, 1W5C alkoxy or 3W5C alkenyloxy; R 3  is H, aralkyloxy, 1W5C alkoxy or 3W5C alkenyloxy; R 4  is H or 1W5C alkoxy) such as 1-(3,4-dimethoxyphenyl)-2-(4-diphenylmethylpiperazinyl) ethanol as an active ingredient. A dose of the compound is 0.5W100mg/day in the case of injection and 5W1,000mg/day in the case of oral administration. 
     COPYRIGHT: (C)1989,JPO&Japio