baber/WOPTO huggingface dataset:
Patent JP-S54130884-A (JP)
Title: Production of junction-type field effect transistor
Inventor: KANAMORI SHIYUUJI
IPC: H01L21/337
Filed: 1978-03-31
Abstract: PURPOSE: To relax the precision of masks which are used for etching at the second time and after the second time, by opening simultaneously windows for substrate taking-out, gate, drain and source regions on the oxide film, which is caused to adhere onto a semiconductor layer, by one-time photo ethcing.  
     CONSTITUTION: N-type layer 2 is grown epitaxially on P-type Si substrate 1 and is covered with SiO 2  film 3, and windows for substrate taking-out regions 6, gate region 7, drain region 8 and source region 9 are opened by one-time photoetching. Next, Si 3 N 4  film 4 and SiO 2  film 5 are caused to adhere onto all the surface by lamination, and a window is provided in film 5 by photoetching. Then, film 5 is used as a protection film to remove film 4 and film 3, thereby forming substrate taking-out region 6. After that, the SiO 2  film is caused to adhere onto film 4 again, and a window for gate region 7 is opened to form p-type gate region 7 by diffusion. Similarly, the adhesion of the SiO 2  film is repeated to form N-type drain regions 8 and N-type source region 9 successively by diffusion. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-S51113583-A (JP)
Title: Hall element temperature compensating circuit
Inventor: SUDOU MITSUO
IPC: H01L43/06
Filed: 1975-03-31
Abstract: PURPOSE: To obtain the temperature compensating circuit for a hall element which enables an easy acquisition of significantly small change in the output against temperature variations. 
     COPYRIGHT: (C)1976,JPO&Japio
Patent JP-S60183858-A (JP)
Title: Clock synchronizing circuit of msk demodulator
Inventor: SASAKI KANEHITO
IPC: H04L27/14
Filed: 1984-03-02
Abstract: PURPOSE:To reproduce surely a clock signal independently of contents of a transmission signal to obtain a synchronizing circuit strong against noise by multiplying demodulated I and Q signals and extracting fundamental wave components after polarities of the multiplied signal are arranged in one direction and generating the clock signal from a PPL circuit. CONSTITUTION:A multiplied signal F obtained by multiplying I and Q signals is converted to a unidirectional rectified waveform F1 by a polarity converting circuit 30, and a sine wave F2 as its fundamental wave is extracted by a BPF31. The extracted sine wave F2 is converted to a square wave F3 having the same period by a waveform shaping device 32 and is supplied as a reference signal of a PLL circuit 24. Consequently, the fundamental clock signal can be extracted without failure in case of any base band data when transmission is performed in the MSK modulation system, and synchronism in the PLL circuit is very stabilized.
Patent JP-S53123624-A (JP)
Title: Recording medium feeding system
Inventor: TOYOMURA SHIGERU
IPC: G06F15/02
Filed: 1977-04-05
Abstract: PURPOSE: To perform printing at the feeding pitch which matches various format by specifying a feeding pitch by a feeding pitch specification switch and performing arithmetic control to print at this pitch. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-H05200154-A (JP)
Title: Game device
Inventor: KASHIMOTO KIYOSHI
IPC: A63F9/00
Filed: 1992-01-29
Abstract: PURPOSE:To provide a game device having a wide room for putting techniques and tactics therein by complicating the movement of a doll. CONSTITUTION:First and second set tables 4a, 4b provided on a field 3 of a game board 1 and first and second dolls 5a, 5b respectively attracted to both first and second set tables 4a, 4b are revolved around the center shaft of the field 3 independently from each other, while first and second means revolving and rotating around theit own axes, a first operating member 6a for driving the first means revolving and rotating around its own axis and a second operating member 6b for driving the second revolving and rotating around its own axis are provided.
Patent JP-S63206510-A (JP)
Title: Fish path in falling dam
Inventor: TANITOMI FUMINAO
IPC: E02B8/08
Filed: 1987-02-20
Abstract: PURPOSE:To simply form a fish path in a short period of time at a low cost by a method in which a tunnel is formed by making its level gradually higher from the downstream to the upstream, a lighting window is formed, and a dust screen is set on the outlet. CONSTITUTION:In a tunnel as a fish path formed in the side wall 3, the level is gradually raised from the downstream to the upstream in such a way as to enable the upstream and downstream of a gate body 1 to communicate with each other. A lighting window 7 is formed in the inner wall of the side wall 3 to illuminate the inside of the tunnel 5 by sunlight from the window 7 to introduce fish toward the upstream. A downstream inlet 10 and an upstream outlet 11 are provided, while a trash bar screen 12 is arranged on the upstream outlet 11. Fish can thus be effectively introduced toward the upstream and fish can go upstream from the outlet.
Patent JP-S60183756-A (JP)
Title: Partial plating method of semiconductor lead frame
Inventor: HASHIMOTO TAKAO
IPC: H01L23/50
Filed: 1984-03-02
Abstract: PURPOSE:To perform metal partial plating of stable quality in the range of the necessitating irreducible minimum efficiently and moreover economically by a method wherein a nonconductive mask having an opening formed according to the prescribed pattern at the part to be plated partially is adhered closely to a lead frame elemental body, and plating is performed. CONSTITUTION:A lead frame elemental body 1 for semiconductor is set up on an opening forming mask 16 constructed of a nonconductive material and having an opening part (the part to be plated) of the prescribed pattern, and the elemental body 1 is contact bonded to be supported from the back according to a press board 13 through a nonconductively elastic body 12. Thereupon plating is performed using the lead frame elemental body 1 as a cathode, while using an unsolvable electrode as an anode 14, and jetting a plating luquid 15 from the under side and flowing a current.
Patent JP-S57153001-A (JP)
Title: Production of fibrous carboxymethylcellulose
Inventor: NAKAYAMA MUTSUO
IPC: C08B17/00
Filed: 1981-03-18
Abstract: PURPOSE: To obtain carboxymethylcellulose fiber having a desired uniform degree of etherification efficiently, by packing cellulose fiber into a vessel and bringing the fiber into contact with a homogeneous alkaline solvent containing a dissolved etherifying agent by circulating the solvent through the vessel.  
     CONSTITUTION: Natural or regenerated cellulose fiber 7 is packed into a perforated cylindrical vessel 1. To this vessel 1 is fed an aqueous ethanol solution containing caustic soda and an etherifying agent (e.g., monochloroacetic acid) in an amount to provide a fiber having a desired degree of etherification. This solution is circulated by a circulation pump 2 through perforations of a perforated shaft 3 and is allowed to react with fiber 7. The reaction temperature is controlled at about 60W70°C by means of a coil 4, and the circulation rate of the reaction solution is above about 10l/min/kg cellulose. Thus, it becomes possible to carry out the alkalification and etherification reactions of cellulose fiber simultaneously in one step and to obtain carboxymethylcellulose fiber within a short time. 
     COPYRIGHT: (C)1982,JPO&Japio
Patent JP-H06248622-A (JP)
Title: Construction of wave-extinction structure
Inventor: KASEBA SHIGEMASA
IPC: E02B3/14
Filed: 1993-02-26
Abstract: PURPOSE:To enhance the safety and improve the appearance of a wave- extinction structure, by laying down stable concrete blocks in the lower layer and stacking natural stones and artificial concrete lumps thereon, when constructing a bulkhead blocks or a wave-extinction bank. CONSTITUTION:After concrete blocks (so-called tetrapot, trade mark) 1 having a stable special shape are laid down in the lower layer in a construction site of a wave-extinction structure, concrete blocks 2 imitated with natural stones are stacked thereon. In these artificial concrete lumps, protrusions are provided when necessary. And the tetrapots are prevented from appearing above the water level even in low tide. In this way, the wave-extinction structure is made stable and the appearance is improved.
Patent JP-S62195812-A (JP)
Inventor: NAKAYAMA TETSUYA
IPC: H01B17/46
Filed: 1986-02-24
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-H11230344-A (JP)
Title: Piston ring structural body
Inventor: KUMAI TERUO
IPC: F16J9/28
Filed: 1998-02-20
Abstract: PROBLEM TO BE SOLVED: To improve durability of a piston ring structural body of a type that pushes an outer ring of a resin material to the radial outside with a coil expander. SOLUTION: A piston ring structural body 10 is made by pushing an outer ring 20 endlessly formed with a polyimide to the radial outside of the piston with a coil expander 40 through an inner ring 30 formed of a PTFE without providing joint openings. A steel coil 41 of the coil expander 40 including a rectangular cross section has a large area abutting on the inner ring 30 so it does not eat into the inner ring 30. The surface of the steel coil 41 is provided with a Teflon coating to reduce friction. The coil expander 40 is heat treated after it is circularized.
Patent JP-S60184688-A (JP)
Title: Surface treated steel sheet for welded can
Inventor: HIMENO MAKOTO
IPC: C25D5/26
Filed: 1984-03-01
Abstract: PURPOSE:To provide a titled steel sheet provided with both excellent adhesiveness of a coated film and weldability by forming a tin-iron-nickel ternary alloy layer on the surface of a steel sheet and forming island-shaped metallic tin on the top layer thereof. CONSTITUTION:The surface of a steel sheet is subjected to nickel plating as an embodiment and is then subjected to an annealing and diffusion treatment by heating and further to a melting treatment by heating so that a tin-iron-nickel ternary alloy layer and metallic tin having an island shape thereon are formed. The tin content in the ternary alloy layer is 0.05-1.0g/m<2> per surface in terms of metallic tin and the island-shaped metallic tin is 20-70% film area rate [expressed as A(%)]; further the content W(g/m<2>) of metallic tin is made to satisfy the equation W>=0.2XA/100. The surface treated steel sheet for welded cans which is excellent in both adhesiveness of a coated film and weldability is thus obtd. A chromic oxide layer or metallic chromium layer and chromic oxide layer are provided on the uppermost layer by a chemical treatment at 5-20mg/m<2> per side according to need.
Patent JP-S57161697-A (JP)
Title: Reactor divided core by rod and spacer plate
Inventor: JIYAN JIYATSUKU BUERUDOO
IPC: G21C15/02
Filed: 1982-03-12
Abstract: A nuclear reactor with juxtaposed prismatic fuel assemblies cooled by the flow of a liquid in a cylindrical jacket. A partitioning of the core between the peripheral assemblies and the jacket is constituted by rods parallel to the assemblies, guided laterally by bracing plates fast to the jacket in which the rods are free to slide longitudinally.
Patent JP-S63207214-A (JP)
Title: Driving circuit for switching element
Inventor: NAKAMURA KIMIYA
IPC: H03K17/04
Filed: 1987-02-23
Abstract: PURPOSE:To form a sharp higher on gate current and to attain the high frequency action of an element by replacing the capacitor of a conventional higher on gate current generating circuit with a transistor, and inserting serially a variable resistance and a diode between the base and the switching element. CONSTITUTION:During the action of an off gate switching circuit 5, the section between the base emitters of a transistor Tr1 is made into the electrifying condition. When such a condition is switched to the operating condition of an off gate switching circuit 2, the output voltage of the circuit 2 is impressed to the Tr1. At this time, the Tr1 is not turned off immediately, the base current of a value determined by the output voltage of the circuit 5 and a resistance R12 flows, a carrier is injected to the Tr1 only by the share of flowed current, until the carrier is extracted, the Tr1 comes to be the on condition, and to the gate terminal of a switching element 4, the higher on gate current of the large value determined by the voltage of the circuit 2 and a resistance 11 is supplied. In such a condition, by preventing with a diode D1 from the carrier is extracted, the turning-off of the Tr1 is delayed without fail. When the value of the resistance R12 is suitably selected, the time when the higher on gate current continues to flow can be controlled.
Patent JP-S59166504-A (JP)
Title: Production of hyaluronic acid
Inventor: MATSUI KENJI
IPC: C08B37/08
Filed: 1983-03-10
Abstract: PURPOSE:To prepare the titled compound useful as a humectant, etc., economically in an industrial scale, by extracting the umbilical cord, etc. with an alkali, removing proteins from the extract, precipitating with cetyl pyridinium chloride, dissolving the precipitate, treating the solution with an anion exchange resin, adding ethanol thereto, and collecting the produced precipitate. CONSTITUTION:The umbilical cord or cockscomb of fowls is cut to small pieces and extracted with two times volume of a 0.03-0.05N NaOH solution at 60- 65 deg.C for 30min under stirring. The extract is neutralized with 30W/W% trichloroacetic acid, and then the trichloroacetic acid is added in an amount of 3- 5W/W% to effect the removal of proteins. The obtained liquid is filtered, and the filtrate is neutralized, dialyzed, and filtered again. 1pt. of the filtrate is mixed with 12-15pts. of 4V/V% cetyl pyridinium chloride solution at a ratio of 1.5-2. The produced precipitate is filtered, dissolved in a 0.2-0.4M NaCl solution, added with about 5-10% of an anion exchange resin and stirred gently for 30min. The product is filtered, and the filtrate is added with two times volume of ethanol. The obtained precipitate is collected and dried to obtain the objective compound.
Patent JP-S60184318-A (JP)
Inventor: MINAMI TERUO
IPC: B60K17/06
Filed: 1984-02-29
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-S56136367-A (JP)
Title: Printing method and die for fine diagram of metal foil
Inventor: SAKUMA TERUO
IPC: B41F16/00
Filed: 1980-03-28
Abstract: PURPOSE: To stamp a metal foil diagram in the form of a very fine wire on an insulator by a method wherein from on a metal foil mounted on the insulator a die with a blade having a flat part at its point is struck down to press the metal foil.  
     CONSTITUTION: The metal foil mounted on the insulator is pressed by using the die 1 having at the point a blade 2 made of the flat part 3 and both ends 4, 4' which protrude at right angles or slightly more, 90W120°. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-S63206739-A (JP)
Title: Silver halide color photographic sensitive material
Inventor: KAMEI SADAO
IPC: G03C1/83
Filed: 1987-02-23
Abstract: PURPOSE:To obtain superior color reproducibility and to suppress the increase of fog during storage at high temp. or at high temp. and humidity by incorporating a specified oxonol dye and specified benzimidazolocarbocyanine coloring matter. CONSTITUTION:At least one kind of oxonol dye represented by formula I and benzimidazolocarbocyanine coloring matter represented by formula II are incorporated into a silver halide color photographic sensitive material having red-, green- and blue-sensitive emulsion layers formed on the supporting body. In the formula I, each of R1 and R2 is alkyl or aryl group, each of R3 and R4 is alkyl or aralkyl group having at least one carboxy or sulfo group and n=0, 1 or 2. In the formula II, m=1-8, each of R11-R13 is -CH2(CF2)lH or alkyl group, l=1-8, each of V1-V4 is H, halogen atom., alkyl group or the like, X is an anion, n'=1 or 2, and when the coloring matter forms an intramolecular salt, n'=1.
Patent JP-H03242929-A (JP)
Title: Manufacture of semiconductor device
Inventor: SASAKI TOMOYUKI
IPC: H01L21/30
Filed: 1990-02-21
Abstract: PURPOSE:To neutralize a charge in the vicinity of a gate electrode and thereby to prevent the deterioration of a breakdown strength of a gate oxide film and the destruction thereof by a method wherein an etching chamber is exhausted after dry etching, nitrogen ionized to be positive and negative is introduced into the etching chamber and an atmospheric pressure is restored therein. CONSTITUTION:A reaction gas is introduced into an etching chamber 1 and a semiconductor device 6 whereon a high-frequency power is impressed is subjected to dry etching. Then, a gas produced by a reaction is exhausted so that the inside of the etching chamber 1 be vacuum, nitrogen ionized to be positive and negative is introduced and an atmospheric pressure is restored in the etching chamber 1. In other words, a charge in the vicinity of a gate electrode 8 is neutralized and static electricity is removed. According to this method, it is possible to prevent the deterioration of a breakdown strength of a gate oxide film 7 and the destruction thereof and, at the same time, to prevent dust from being adsorbed on the surface of a semiconductor device 6 and causing a fault thereof.
Patent JP-H06249180-A (JP)
Title: Canned motor pump
Inventor: TSUTSUI TOSHIAKI
IPC: F04D29/04
Filed: 1993-03-01
Abstract: PURPOSE:To obtain a canned motor pump wherein high speed driving becomes possible by making the gas-liquid mixed state through a process of effectively vaporizing fluid in a rotor chamber and increasing motor efficiency in order to decrease the rotational resistance caused by fluid agitation in a rotor in a canned motor portion. CONSTITUTION:Bearings 30, 32 are provided on both ends of a canned motor portion 12 so as to rotatably support a rotor shaft 24, and a liquid introducing parts for introducing a part of pump handling liquid are so provided so as to be faced to the outside ends of respective bearings, so that liquid to be introduced from liquid passages 46, 48 as liquid introducing parts may be filled in the clearance between rotor chambers 34, 36 and between a rotor 28 and a stator 26 while performing lublication for respective bearings. Moreover liquid passages 62, 64 as liquid discharging parts for discharging liquid filled in the rotor chambers are provided on both ends of the canned motor position, so as to keep the clearance between the rotor and the stator into the gas-liquid mixed state in driving of the pump.
Patent JP-H02221147-A (JP)
Title: Production of electrically conductive ceramics
Inventor: MIZUTANI YOSHIKI
IPC: C04B35/00
Filed: 1989-02-20
Abstract: PURPOSE:To easily obtain electrically conductive ceramics at a low cost by compacting and sintering an inorg. powdery mixture having high electric resistance and a specified compsn., coating the surface of the resulting sintered body with graphite powder and heating the coated sintered body. CONSTITUTION:Powder of one or more kinds of compds. having high electric resistance selected among oxides such as zirconium oxide and aluminum oxide and silicon carbide is well mixed with powder of one or more kinds of compds. having high electric resistance such as cobalt oxide and nickel oxide. This powdery mixture is charged into a mold, compacted and sintered in the air or in an inert gas. The surface of the resulting sintered ceramics is coated with graphite powder and the coated ceramics is heated in an atmosphere of gaseous Ar to obtain electrically conductive ceramics. HIP or SIP, etc., may be adopted in place of the compacting and sintering method.
Patent JP-H04288820-A (JP)
Title: Lamp heating apparatus
Inventor: KOYANAGI MASATOSHI
IPC: H01L21/31
Filed: 1991-03-06
Abstract: PURPOSE:To control the distribution of the temperature of a wafer substrate without increasing the heat capacity of a quartz container and the like and to obtain a semiconductor device without a defect by providing light screening films having specified patterns on the surface of a thin quartz plate or the quartz container which is arranged between a material to be heated and lamps. CONSTITUTION:Metal having excellent reflecting characteristic such as silver and aluminum is formed on the surface of a quartz container 4 by vapor deposition, and light screening films 9 are provided. Patterns are formed so that lamp light 3 reaching the central part of a wafer substrate 7 becomes weak. The lamp light 3 emitted from each lamp 1 is shielded with the light screening films 9 where the light screening films 9 are present. The light 3 is transmitted through the quartz container 4 where the light screening film 9 is not present and reaches the wafer substrate 7, and the substrate 7 is heated. The light screening films 9 are arranged in the vicinity of the center of the quartz container 4 and in the concentric-circle pattern at the surrounding part of the center. In this way, the lamp light 3 reaching the central part of the wafer substrate 7 is made weak, and the temperature distribution on the wafer substrate 7 can be made uniform.
Patent JP-S59818-A (JP)
Inventor: UCHIDA TAKESHI
IPC: H01H33/66
Filed: 1982-03-16
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-H05217861-A (JP)
Title: Method for detecting positional deviation and aligner
Inventor: KURODA AKIRA
IPC: H01L21/68
Filed: 1992-01-31
Abstract: PURPOSE:To observe the three-dimensional shape of the surface of a sample at a resolution of nanometers or below by detecting a force based on a deflection due to the force exerted between the sample and probes and scanning the surface while controlling the distance between them to keep the force constant. CONSTITUTION:If a relative positional deviation occurs between a mask 100 and a wafer 114 in the x, y and/or z directions and thus the magnitude of force exerted between the tips of probes 109 and 110 and resist 113 is changed, the tips of the probes 109 and 110 move in the z direction. This changes the deflection in elastic cantilevers 101 and 102 supporting the probes 109 and 110, resulting in the positional deviation of reflected light spots on position detecting elements 107 and 108. The deflection in the cantilevers 101 and 102 and the amount of the probe 109 and 110 tip movement are determined by detecting the positional deviation. This relatively aligns a mask with a wafer in an accuracy of the 1nm order.
Patent JP-S58159020-A (JP)
Title: Pulse duty ratio stabilizing circuit
Inventor: OOTSUBO HIROYASU
IPC: G05F1/56
Filed: 1982-03-17
Abstract: PURPOSE:To obtain a stable pulse duty ratio even in the event of a variation of supply voltage, by automatically correcting the pulse duty ratio. CONSTITUTION:A pulse 21 whose waveform is round is inputted to an input terminal 11, and is applied to a variable Vth (threshold voltage) pulse circuit 1. In the variable Vth pulse circuit 1, an H level or an L level of the input pulse is decided by threshold voltage Vth. In a smoothing circuit 2, a mean value of an output pulse of the variable Vth pulse circuit 1 is derived, but for instance, when a pulse duty ratio, an H level of the pulse, and output voltage of the smoothing circuit are denoted as delta, VDD and VA, respectively, VA=deltaVDD, and VA is proportional to delta, therefore, the pulse duty ratio delta can be detected. In a comparator 3, the output of the smoothing circuit 2 is compared with the reference voltage 14, and by its output, the threshold voltage of the variable Vth pulse circuit 1 is controlled.
Patent JP-S62198195-A (JP)
Inventor: TATSUOKA SHUJI
IPC: H05K3/34
Filed: 1986-02-26
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。