baber/WOPTO huggingface dataset:
Patent JP-2001118675-A (JP)
Title: Organic electroluminescent element
Inventor: ARAI MICHIO
IPC: H01L51/50
Filed: 1999-10-21
Abstract: PROBLEM TO BE SOLVED: To provide an organic electroluminescent(EL) device which has small strain within the film, prevents the generation of dark spot or the like, is deposited comparatively easily without using a special sealing structure and moreover, has a sealing film with a high sealing effect. SOLUTION: The organic EL device comprises a hole injection electrode formed on the substrate, an organic layer involving a luminescent function, and an electron injection electrode. The electron injection electrode has a sealing film on the opposite side of the substrate. The sealing film is composed of either silicon nitride, silicon carbide, silicon carbide oxide, or silicon nitride oxide and contains 0 to 10 at% phosphors (in P conversion, but not 0).
Patent JP-2001115534-A (JP)
Title: Underground pipe embedding construction
Inventor: NAKAYAMA KENJI
IPC: F16L1/024
Filed: 1999-10-21
Abstract: PROBLEM TO BE SOLVED: To reduce underground pipe excavation cost by decreasing the embedding depth to an adequate value because the load of motor vehicle to an underground pipe is considered as a concentrated load if the embedded depth of underground pipe is shallower than 60 cm and conventionally in the underground pipe embedded construction, the embedded pipe is considered as being subjected to a partially uniformly distributed load or an uniformly distributed load thereby embedding the pipe to a deep position in many cases in which the excavation and relevant costs are increased; and if the embedding depth is shallow, the embedded underground pipe is easily affected by the load of motor vehicle. SOLUTION: A load receiving slab 3 having a predetermined area is embedded in earth directly above the embedded underground pipe 2 thereby receiving the load of motor vehicle by the slab 3 and reducing the influential force of the vehicle load to the underground pipe 2.
Patent JP-S63151079-A (JP)
Title: Manufacture of semiconductor device
Inventor: UMEHARA MASAYOSHI
IPC: H01L29/872
Filed: 1986-12-16
Abstract: PURPOSE:To obtain a preferable Schottky barrier diode (SBD) having no current leakage by isotropically etching a first insulating film with a second insulating film formed on the first film as a mask to move back the end of the first film so that the end of the first film is not covered with a first metal layer. CONSTITUTION:A second insulating film, such as a silicon nitride film 3, is formed on an N-type semiconductor substrate 1 covered with a first insulating film, such as a silicon dioxide film 2. The film 3 is opened, and with the film 3 as a mask the film 2 is isotropically etched to move the end of the film 2 back, thus forming the overhangs of the film 3. Then, when it is covered with metal (e.g., platinum) 4 for a Schottky barrier by a sputtering method, the platinum shows step cuts at the parts due to the overhangs of the film 3. Then, it is heat treated in vacuum to react the metal 4 with silicon contacting the metal to form a platinum silicide layer 4. Since the layer 4 is not formed at the end of the opening for the SBD, an electric field concentration at this part is eliminated to provide the same effect as that when a guard ring is inserted.
Patent JP-H07154262-A (JP)
Title: Signal recording method, signal reproduction method and signal recording and reproducing method
Inventor: YAMADA KUNIO
IPC: H03M3/04
Filed: 1993-11-30
Abstract: PURPOSE:To record/reproduce an analog signal with fidelity by less amount of information. CONSTITUTION:A 2nd digital signal is sequentially read based on a sampling frequency from a memory 7 storing the 2nd digital signal whose level is 1/4 of a digital signal equivalent to a difference between preceding and succeeding amplitudes obtained by sampling an analog signal based on a specific sampling frequency, and while the 2nd digital signal is outputted, the 2nd digital signal is added to the result of sum obtained so far by using an adder circuit 10 and a latch circuit 11 based on a frequency being four times of the sampling frequency. Thus, a 3rd digital signal equivalent to the amplitude of an original analog signal waveform is obtained based on a frequency being 4 times of the sampling frequency and it is D/A-converted and the analog signal waveform is reproduced. Thus, the reproduced waveform is gradually changed by the analog value equivalent to 1/4 of the difference between the preceding and succeeding amplitudes of the original analog waveform for each period of the frequency of four times of the sampling frequency.
Patent JP-H06150126-A (JP)
Title: Automatic vending machine
Inventor: IWASAKI YOSHIAKI
IPC: F24F1/02
Filed: 1992-11-11
Abstract: PURPOSE:To enable the outdoor installation and to expand the advertisement effect by installing a video means within a heat-insulated room for which temperatures are adjusted in an automatic vending machine in which the video means composed of a video reproducing device and a television is mounted. CONSTITUTION:In the upper part within a stockroom storing commodity racks of a main body case, a heat insulating room 14 whose circumference is surrounded by heat insulating member 13 and a machine room 15 are formed. In the heat insulating room 14, a video reproducing device 3 reproducing the information on a video disk by laser and a television 4 displaying the reproduced information on a screen are installed. An automatic vending machine projects the information on the video disk on the screen 41 of the television 4 by the video reproducing device and the television 4 and appeals a customer who watches this video through a transparent window with saling articles. In the heat-insulated room 14, indoor temperature is detected by a thermostat, a cooling device 5 is made to operate when the temperature reaches an upper limit temperature, the heat insulating room 14 is cooled by a cooler 51 and the indoor temperature is kept constant.
Patent JP-H07153783-A (JP)
Title: Semiconductor manufacturing equipment
Inventor: SENDA MASAO
IPC: H01L21/52
Filed: 1993-11-30
Abstract: PURPOSE:To reduce the flow of inert gas and reducing gas to be used and to prevent the appearance of an oxide film on the surface of hard solder in a die-bonding equipment using the hard solder (a bond). CONSTITUTION:At an opening section 2 of a an oxidation proof gas cover 1 which is used in the conventional semiconductor manufacturing equipment, movable shielding plates 3 by which an area of the opening section can be set at any size and any position and a variable mechanism which is constituted of a driving section 4 such as a pulse motor which can move the shielding plates 3 and a controlling section are installed. By this method, the flow of inert gas to be used can be reduced and outside air is prevented from being caught up into the gas cover. Therefore, no oxide film is formed on the surface of the solder and thereby the quality can be hightened.
Patent JP-H03160715-A (JP)
Title: Semiconductor manufacturing device
Inventor: NOMURA HIROSHI
IPC: H01L21/205
Filed: 1989-11-17
Abstract: PURPOSE:To improve throughput in a growth furnace by cooling the growth furnace in a short while and uniformly; besides, improve the quality of a wafer by introducing a cooling gas newly from a lower end of a heater into an upper gas passage. CONSTITUTION:A heater 14 is disposed at the periphery of a growth furnace 11 so that it extends in the upper and lower directions and a gas passage 13 is demarcated between the growth furnace 11 and the heater 14 and then, the heater is fixed to a holder. Further, an introducting means to introduce a cooling gas newly from a lower end 14a of the heater 14 into the upper gas passage 13 is provided. As a result, even upper side of the growth furnace 11 is cooled at the same speed as cooling speed of its lower side and then, the growth fur nace 11 is cooled in a little while and likewise, temperatures in the growth furnace 11 become almost uniform. Throughput in the growth furnace, in this way, is improved and scattering in characteristics between wafers is hard to take place and the quality of each wafer is thus improved.
Patent JP-H01139809-A (JP)
Title: Aromatic polyamide fiber and production thereof
Inventor: OMORI AKIO
IPC: D01F6/60
Filed: 1987-11-27
Abstract: PURPOSE:To provide the title fiber having specific surface structure, outstanding in color developability, heat resistance and flame retardancy, ready to diffuse moistures such as sweat. CONSTITUTION:The objective aramid fiber having the following characteristics... 1. the circumference difference ratio on fiber section>=0.05 on the average 2. number of surface recesses 0.1 to 1.0mu deep along the circumference...>=3 on the average 3. virtually free from surface recesses >=1.5mu deep. This aramid fiber can be obtained by a vertical upflow-type wet spinning process with the both draft of >=1.5. The coagulating bath consists of a solution prepared by mixing the stock solution solvent and a swellable metal salt with their respective concentrations S and M(wt.%) satisfying the relationships: 6<=S<=24 and 38-S/2<=M<=166/3-13S/18.
Patent JP-H10137822-A (JP)
Title: Detachable type multi-column roll cooling water header of vertical rolling mill
Inventor: KUWANA TAKASHI
IPC: B21B13/06
Filed: 1996-11-12
Abstract: PROBLEM TO BE SOLVED: To reduce the time for changing a caliber on line and to improve the productivity of the whole rolling line by subdividing the inner part of a roll cooling water header into plural headers with diaphragms and feeding the cooling water to each subdivided chamber. SOLUTION: A pair of left and right roll cooling water header 1 is provided with the height covering the whole length of the roll drum, and the inner part of the roll cooling water header is subdivided into plural headers with diaphragms. Also, a hose 2 feeding the cooling water and a switching valve 3 are provided in every chamber of the subdivided header, the valve of the roll cooling water header used in the used caliber is closed and at the same time the valve of the roll cooling water header being used in the next caliber to be used is opened in order to change the caliber, whereby the cooling caliber is allowed to change by only the valve operation.
Patent JP-H01143280-A (JP)
Title: Manufacture of semiconductor laser device
Inventor: SERIZAWA AKIYUKI
IPC: H01S5/12
Filed: 1987-11-27
Abstract: PURPOSE:To simplify a process by including a step wherein the fourth semiconductor layer having at least one layer of the first conductive type layers is made to epitaxially grow on the surface excepting a striped part by a vapor growth method, and a step wherein the second conductive type semiconductor layer is made to epitaxially grow on that surface by the vapor growth method. CONSTITUTION:A clad layer 2, an active layer 3 and a waveguide layer 4 are by turns crystallized on a substrate by a liquid phase epitaxial growth method. Next, a diffraction grating 5 is formed and a striped laser resonator 6 is formed by selectively etching the waveguide layer 4 and the active layer 3. Next, vapor phase growth is performed by an almost atmospheric MO-VPE method having an organic metal such as (CH3)3In and PH3 as a raw material so as to form a current confining layer 7 (N-type). Further, when P-InP is made to grow by the same MO-VPE method under reduced pressure, growth takes place also on a stripe 6 so as to grow a clad layer 8. AP-InGaAsP layer is made to grow on the clad layer 8 as a P-type contact layer 9 and the electrodes 10, 11 are formed in order to obtain a laser diode.
Patent JP-H01139977-A (JP)
Title: Ice machine for refrigerator, etc.
Inventor: OHASHI YOSHINORI
IPC: F25C1/18
Filed: 1987-11-27
Abstract: PURPOSE: To prevent the time required for making a transparent ice in a first ice making pan from prolonging unnecessarily even when an ice is made in a second ice making pan without causing any trouble in the ice making opera tion of the second pan by providing a partition beneath a cooling plate at a specified interval and forming a first ventilation path between the cooling plate and the partition and a second ventilation path beneath the partition. CONSTITUTION: Chill flowing through a first ventilation path 25 cools a cooling plate 13 and a first ice making pan 15 is cooled indirectly from the lower surface. Chill flowing through a second ventilation path 26 enters into a second ice making room 24 where ice making action takes place principally from the upper surface of a second ice making pan 16 to make normal ice in a short time. Heat generated from water in the pan 16 during freezing process is blocked by a baffle plate 23 disposed above the pan 16 and discharged, as it is, from the front opening of the room 24 to the outside of an ice maker 21 thus having no effect on the cooling plate 13. Steam being generated before water in the pan 16 is frozen is also blocked by a baffle plate 23 and it does not act on the cooling plate 13.
Patent JP-H08160438-A (JP)
Title: Liquid crystal injection device
Inventor: KAWAHARA MASARU
IPC: G02F1/1341
Filed: 1994-12-05
Abstract: PURPOSE: To provide a liquid crystal injection device which produces a liquid crystal display device by injecting liquid crystals into a cell in a safer operating and additionally cleaned state. CONSTITUTION: This liquid crystal injection device 20 is constituted to inject the liquid crystals into a cell 30 by immersing a non-glued corner part 32 of the cell 30 under a reduced pressure into the liquid crystal housed in a liquid crystal tray 5 within a housing 22 and gradually raising the pressure in the housing 22. The corner part 32 of the cell 30 is moved into the liquid crystal tray 50 arranged statically in the housing 22 by inclining the cell 30 in the housing 22, by which the liquid crystal injection operation is carried out.
Patent JP-H04176197-A (JP)
Title: Shielding structure of printed wiring board
Inventor: TSUCHIDA HIROSHI
IPC: H05K3/42
Filed: 1990-11-08
Abstract: PURPOSE:To enable noises propagating along the surface or the inside of a printed wiring board to be effectively shut off by a method wherein a large number of through-holes are provided along a prescribed shielding line at a small interval, and a conductor pattern formed on both the sides of the wiring board so as to connect a through-hole row together and the conductor formed on the inner surface of each of the through-holes are grounded. CONSTITUTION:A straight line is provided onto a board 1 so as to divide it into two parts, a part A and a part B, and a large number of through-holes 2, 2, 2, are provided along the straight line concerned at short intervals. A conductor pattern 3 connecting is provided onto each of the sides of the board 1 to connect a through-hole 2 row together, and the conductor patterns 3 and the conductor formed on the inner surface of each of the through-holes 2 are grounded. Shielding plates 4a and 4b are fixed to the board 1 with screws 5 driven through the through-holes 2.
Patent JP-H07125572-A (JP)
Title: Sudden slowdown alarm system of automobile
Inventor: NONOME KATSUHIKO
IPC: G08B21/00
Filed: 1993-11-04
Abstract: PURPOSE:To give no alarm when it is unnecessary to inform a sudden slowdown in particular but to emit an alarm alone when it is necessary. CONSTITUTION:Deceleration is calculated from a variation in detecting speed by a car speed sensor 1 by an electronic control unit 2, and when the deceleration is larger than the specified value and that decelerating width is larger than the constant value in a state that the detecting speed is larger than the specified one, a hazard lamp 4 as an alarm is flickered by a hazard lamp driver 3.
Patent JP-H04173395-A (JP)
Title: Image forming apparatus
Inventor: YAMAZAKI HIDEO
IPC: B65H39/11
Filed: 1990-11-08
Abstract: PURPOSE:To prevent the wastefulness of recording paper by mounting a control means permitting the alteration of a stapling mode only when a copy size is not altered at the time of the interruption of a copy and continuing job in the altered stapling mode when the copy is restarted. CONSTITUTION:When a stop key 305 is pushed at the time of a copy in a stapling mode, the copy is interrupted. When a mode clear key 303 is not pushed, it is judged whether there is a recording paper of the same size and, when the mode clear key 303 is pushed, the recording bundle stacked on a stapler S is discharged. In such a case that the selected recording paper is same or a selection key 306 is not pushed, a stapling mode selecting key 309 is re- inputted to judge stapling quantity striking, front striking or deep striking and a command is issued to a post-processing apparatus 500 so as to perform stapling in a selected mode. Thereafter, when a printing key 304 is pushed, the interruption of the copy is released and a predetermined number of recording papers are subjected to copy processing in such a state that a stapling position is altered.
Patent JP-2001121985-A (JP)
Title: Forward-backward changeover control device of working vehicle
Inventor: TAKAHASHI MASAYUKI
IPC: B60K17/08
Filed: 1999-10-22
Abstract: PROBLEM TO BE SOLVED: To solve the problem that an operator is obliged to temporarily operate a steering wheel by single hand to roll a vehicle or delay the elevating operation of a working machine in a conventional tractor or the like in which when a forward-backward switching operating lever is switched from backward movement to forward movement, immediately the rotating power of an engine is transmitted to the front and rear wheels to move the vehicle forward. SOLUTION: In a tractor including a forward-backward switching lever, and a forward-backward switching device 3 for switching the rotating power transmitted to front and rear wheels to normal rotation or reverse rotation according to the operation of the lever, there is provided a clutch mechanism (forward-backward switching clutch) for operating on and off state of power transmission to the front and rear wheels by the drive of an actuator (clutch piston), whereby when the vehicle is switched from backward movement to forward movement, the power transmission of the forward clutch is held in the OFF state until the depressing operation of a clutch pedal is detected.
Patent JP-H04174821-A (JP)
Title: Ferroelectric liquid crystal display
Inventor: IWAYAMA MITSUO
IPC: G02F1/1335
Filed: 1990-11-08
Abstract: PURPOSE:To obtain contrast adjusting function in a sufficient range in a simple structure by providing a means to vary the direction of the polarization axis of one of a pair of polarizing plates. CONSTITUTION:In a ferroelectric liquid crystal display provided with a ferroelectric liquid crystal cell holding a ferroelectric liquid crystal between a pair of substrate having an electrode and oriented film, a pair of polarizing plates arranged on both sides of the ferroelectric liquid crystal cell and a means to apply voltage to the electrode for driving the ferroelectric liquid crystal, only the polarization axis of an polarizing plate is rotated by an angle of 10 deg., for example, counterclockwise in the state that a pair of the polarizing plates are arranged so that the contrast may become a maximum in the plane including the polarization axis therein. By this constitution, the contrast varies to a maximum of about 34%, for example, therefore, contrast adjustment in a sufficient range can be performed only by varying the polarization axis.
Patent JP-2000131939-A (JP)
Title: Rotating body supporting device, process cartridge and image forming device
Inventor: HOSOKAWA HIROSHI
IPC: G03G15/20
Filed: 1998-10-22
Abstract: PROBLEM TO BE SOLVED: To restrict the movement of a rotating body in a thrust direction without using a thrust bearing and also restrain torque for driving the rotating body to be low. SOLUTION: A shaft part 36 made of metal and projecting from the end of the rotating body 15 is supported by bearings 37 and 38 provided on opposed supporting walls 13a and 13b, and an abutting member 39 made of synthetic resin and having a low friction coefficient is fixed at the shaft part 36 projecting from a supporting wall 13a. By making the member 39 abut on the external wall 8a opposed to the wall 13a, the movement of the rotating body 15 in the thrust direction is restricted without using the thrust bearing and the torque for driving the rotating body 15 is restrained to be low.
Patent JP-2000190823-A (JP)
Title: Vehicular mud removing device
Inventor: ONODERA TAKEO
IPC: B60S1/68
Filed: 1999-10-22
Abstract: PROBLEM TO BE SOLVED: To provide a vehicular mud removing device excellent in the durability of each part, and in workability, and high in safety. SOLUTION: This device is provided with a frame main body 1 provided with a front wheel mud remove element 21 and rear wheel mud remove element 31 consisting of a pair of front/rear rollers 51 respectively and walking plates 2 connectable to the front/rear of this frame main body 1 on the front/rear parts in a vehicle loading surface and has a transmission mechanism for synchronously rotating the front wheel mud remove element 21 and rear wheel mud removing element 31, a reverse turn prevention mechanism for allowing the only the way rotation of the roller 51 of at least rear wheel mud remove element 31,  a lock mechanism 3 for locking the walking plate 2 under the state connected the walking plate 2 to the frame main body 1 and slip stop members 41 with a nearly triangle shape vertical section arranged plurality and parallelly on the tread surfaces of the vehicle loading surface of the frame main body 1 and walking plate 2. The projections with nearly polygon shape vertical section are provided on the outer periphery of the roller 51.
Patent JP-H10142569-A (JP)
Title: Optical wave-guide variable attenuator
Inventor: IWASAKI MASAAKI
IPC: G02F1/035
Filed: 1996-11-13
Abstract: PROBLEM TO BE SOLVED: To provide an optical wave-guide variable attenuator which is highly staabilized, has a wider dynamic range and is improved in its characteristics compared with conventional optical wave-guide attenuator, by restricting a level difference between channels generated by a wave-length dependency of an optical amplifier gain. SOLUTION: On a ferro-electric substance crystal substrate 11 having an electro-optic effect, a linear optical wave-guide in which signal light propagates along an optical axis of the ferro-electric crystal 11, optical wave-guides 13, 14 which form the linear optical wave-guide and which independently form optical directional couplers 15, 16, and control electrodes 17, 18 sandwiching the independent optical directional couplers 15, 16 in-between which are formed from the linear optical waveguide and each optical wave-guide of the optical wave-guides 13, 14, are formed, and a perfect coupling length L of the optical directional couplers 15, 16 is made an even-number times as long as a perfect coupling length Lc.
Patent JP-H02146416-A (JP)
Title: Microwave oven
Inventor: KANEKO HIROMI
IPC: F24C7/02
Filed: 1988-11-29
Abstract: PURPOSE:To make it possible to carry out automatic cooking without errors in response to refrigeration and non-refrigeration by making a judgement whether food in a heating chamber is frozen or not based on the output information of a gas sensor and a weight sensor under cooking. CONSTITUTION:By depressing a start key 11a, a decision is made as to check time T1 (time required to decide if it is frozen food or not) and factors alpha and beta. Then, refreshing operation is carried out for t1 seconds (for example, 10 seconds). After this refreshing operation is over, a magnetron 4 starts its operation and heats food 2 by high frequency and starts a built-in counter simultaneously. When an integrated time based on the counter arrives at check time T1, the difference between an output level Vs of a gas sensor 13 at that time and a peak value Vsmax (Vsmax-Vs) is calculated and the difference is compared with relative data D. The magnitude of the change volume (Vsmax-Vs) allows a judgment as to whether food in a heating chamber 1 is frozen or not, thereby setting proper supplementary heating time betaT0 based on the above judgment.