baber/WOPTO huggingface dataset:
Patent JP-2000246900-A (JP)
Title: Recording head and recorder employing it
Inventor: MATSUNO YASUSHI
IPC: B41J2/05
Filed: 1999-03-01
Abstract: PROBLEM TO BE SOLVED: To ensure stabilized ink ejection while enhancing durability by providing circuits for varying the waveform of a current pulse for driving electrothermal conversion elements in correspondence with a plurality of electrothermal conversion elements on an identical substrate. SOLUTION: An NMOS transistor M1, a constant current 101 and an amplifier Buf constitute a reference current generating section 100 on the reference side of a current mirror circuit. A plurality of heater elements RH, NMOS transistors M2, M2A provided for respective heater elements RH, inverts 201, 202, and the like, constitute a heater array 200. Furthermore, a control circuit 300 is provided in order to control the operation of a circuit for varying the waveform of a driving current pulse or turning the driving current pulse on/off. The control circuit 300 is provided on a heater board mounting a plurality of heater elements in correspondence with a plurality of ink jet nozzles in a recording head.
Patent JP-S59177977-A (JP)
Title: Semiconductor photo detector
Inventor: MIKAWA TAKASHI
IPC: H01L31/109
Filed: 1983-03-28
Abstract: PURPOSE:To prevent dark currents in a semiconductor phot detector with an unequal junction interface, and to lower the lower limit of a reception level of an optical signal further by forming a high-concentration impurity introducing region to a hetero-junction or a homo-junction in a region except a region corresponding to a light-receiving region. CONSTITUTION:An InGaAs semiconductor layer 2, an InGaAsP semiconductor layer 3 and an InP semiconductor layer 4 are grown on an InP substrate 1 in an epitaxial manner. An ion implantation method is applied, silicon is introduced selectively to the InP semiconductor layer 4 in the quantity of a dose such as one of approximately 3X10<12>(cm<-2>) through a proper mask, and a reach-through type dielectric resistance drop region 5 is formed. A diffusion method is applied, sulfur is diffused from the surface with the exception of a section, a light reception thereof is expected originally, and an N type high-concentration impurity introducing region 6 is formed. An InP semiconductor layer 7 is shaped. The ion implantation method is applied, beryllium is introduced selectively in the quantity of a dose of approximately 5X10<13>(cm<-2>), and a P type light-receiving region 8 is formed. A protective film is shaped, and an electrode is formed, thus completing a semiconductor photo detector.
Patent JP-H07261588-A (JP)
Title: Fixing device and image forming device
Inventor: YAMAGUCHI MASAO
IPC: G03G15/20
Filed: 1994-03-24
Abstract: PURPOSE:To provide a fixing device capable of preventing a color drift and obtaining high image quality and an image forming device provided with it. CONSTITUTION:This fixing device is provided with the rotatively driven first and second rollers, and this color image forming device is provided with it. When the angle theta between the straight line connecting the prescribed position of a nip section formed by the first and second rollers and the center of the first roller and the straight line connecting the centers of the first and second rollers satisfies the equation I at a value THETA, THETA satisfies the equation II, where r1 is the radius (mm) of the first roller, r2 is the radius (mm) of the second roller, (c) is the nip width, D is the printing dot width (mm), b={r2<2>-(r2-a)<2>}<1/2>, r'=(r0+a)+b<2>, (n) is the ratio between the revolving speeds of the first and second rollers, and r0 and (a) are the values expressed by the equations III, IV.
Patent JP-H11252979-A (JP)
Title: Load torque detection circuit for dc motor
Inventor: ENDO MASAHIKO
IPC: H02P7/06
Filed: 1998-03-05
Abstract: PROBLEM TO BE SOLVED: To provide a load torque detection circuit capable of load torque positively from light load timing to locking timing, regardless of how a flywheel diode is connected. SOLUTION: An integrating capacitor C1 is charged by the voltage across a current detection resistor Ri, which detects armature current to obtain a load torque detection signal Vst across the capacitor C1 . To charge the integrating capacitor C1 only for a fixed period after the time when a transistor TR1 which on-off controls the armature current turns to in an on-condition, an integrating time limit circuit 10 which limits the charging time of the integrating capacitor C1 is provided. The charging time of the integrating capacitor C1 is set to a fixed, value which is smaller than the on-time of the transistor TR1 , when the on-duty ratio of the transistor TR1 is minimum.
Patent JP-S56150044-A (JP)
Title: Preparation of highly reactive methacrylic acid oligoester
Inventor: AWAJI TOSHIO
IPC: C07C69/60
Filed: 1980-04-24
Abstract: PURPOSE: To prepare the titled compound having improved reactivity in the curing reaction, by treating a specific methacrylic acid oligoester with a catalytic amount of an amine, thereby rearranging a definite amount of maleic acid double bonds to fumaric acid double bonds.  
     CONSTITUTION: The titled compound can be obtained by treating a methacrylic acid oligoester containing methacroly groups and maleic acid double bonds in the molecule and having an acid value of ≤5 with a catalytic amount of a primary amine or a secondary amine, thereby rearranging ≥60% of the maleic acid double bond to fumaric acid double bond. The terminal double bonds of the oligoester should be methacroly groups. The titled compound has preferable curing characteristics to that of the oligoester obtained from maleic acid or its anhydride.  
     USE: Curing agent. It can be used in cast product, molded article reinforced with glass fiber, paint, etc. in combination with a polymerizable monomer such as styrene. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-S57168573-A (JP)
Title: Facsimile controlling system
Inventor: KANDA HAJIME
IPC: H04N1/00
Filed: 1981-04-09
Abstract: PURPOSE:To actuate only a CPU in the queuing mode and accordingly to save the power consumption, by forming a system control part with two CPUs and supplying the power to one of the two CPUs from a main power supply during the transmission and reception with the other queuing CPU receiving the power supply from a secondary power supply. CONSTITUTION:A system control unit SCU1000 consists of a slave CPU1001 and a master CPU1002, and a power supply part 1600 includes a secondary power supply part 1601 and a main power supply part 1062. When a power supply switch SW is turned on of such system, the power is supplied to the queuing CPU1002 from the part 1601. Then the state of the system is monitored by the CPU1001. If an instruction ordering the start of reception or transmission is given from an operation part 1300 under such conditions, the CPU1001 applies the power of the part 1602 to actuate the CPU1002. Then the CPU1001 is subordinated to the CPU1002, and the part 1602 is cut off by the instruction of the CPU1002 after the end of the transmission or reception to perform the monitor again for the state of the system. In such way, the power consumption is saved  for the system.
Patent JP-H10252775-A (JP)
Title: Ventilation structure for dry type clutch for vehicle
Inventor: NAKAJIMA AKIHIRO
IPC: F16D13/72
Filed: 1997-03-07
Abstract: PROBLEM TO BE SOLVED: To provide ventilation structure for a dry type clutch for a vehicle to prevent penetration of water and dust without increasing a cost. SOLUTION: In structure to ventilate the internal part of a clutch housing 3 for a dry type clutch for a vehicle wherein the front flange part 4b formed at the front end of a transmission case 4 is coupled to an after flange part 17 formed at the rear end wall 15a of the clutch housing 3, a reinforcing rib to form an outside air introduction recessed part 27 in cooperation with a rear flange 17 is formed in a state to protrude from the rear end wall 15a, an outside air introduction port 27a communicated with the interior of the clutch housing 3 is formed in the inside air introduction recessed part 27. A boss part 30 for machining a mating surface formed on the outside of the front flange part 4b of the transmission case 4 is positioned in a manner to cover at least a part of the outside air introduction recessed part 27.
Patent JP-H02233743-A (JP)
Title: Resin composition
Inventor: ISHIDA NOBORU
IPC: C08L71/02
Filed: 1989-03-08
Abstract: PURPOSE:To obtain a resin composition, containing a styrene-based polymer, polyethylene oxide and a specific sulfonate in a specified proportion, having excellent antistatic properties and good in molding processability. CONSTITUTION:The objective composition containing (A) 100pts.wt. styrene-based polymer, (B) 3-35pts.wt., preferably 5-20pts.wt. polyethylene oxide having 50,000-1,000,000, preferably 100,000-500,000 number-average molecular weight and (C) 0.5-5pts.wt., preferably 0.7-3pts.wt. sulfonate expressed by formula (R1 and R2 are H Or 1-12C alkyl; X is Na, Li or K) (e.g. sodium dodecylbenzenesulfonate).
Patent JP-S61211836-A (JP)
Title: Disc
Inventor: YOSHIMARU TOMOHISA
IPC: G11B7/24097
Filed: 1985-03-18
Abstract: PURPOSE:To obtain an enough margin to the deviation of alignment by providing an area on which a data checking a focus state is stored in advance so as to correct the focus always to a proper position thereby improving the error rate. CONSTITUTION:Varible length of information (picture information) is stored over plural blocks on an optical disc 19 and block information is stored to a track on the disc 19. Further, the optical disc 19 is provided with a focus check area (a) at the innermost circumference on which the focus state check data is recorded in advance. Since a data causing easily an error is recorded as the data recorded on the focus check area (a), such as a random data, a data changed in a minimum pitch pit (2 pitches) or data changed by a maximum pitch pit (7 pitches). The focus check area (a) consists of plural tracks.
Patent JP-S56150902-A (JP)
Title: Method for controlling stop of motor-driven truck
Inventor: UNOSAKI TSUNETO
IPC: B60L15/40
Filed: 1980-04-23
Abstract: PURPOSE: To enable the use of a motor for general purpose and to reduce the energy consumption during stopping by braking, by a method wherein when the truck passes a prescribed position, an output of the transit motor is decreased and then, the truck is contacted with a cushion to be stopped.  
     CONSTITUTION: A three-phase induction motor used for the truck 4 running on rails 1 is Δ-connected. When a projection 12 of the truck 4 is contacted with a limit switch 10, the connection of the motor 5 is changed over to Y-connection and output of the motor 5 is decreased. Subsequently, the truck 4 is contacted to the cushion means 7 and the speed thereof is gradually decreased. When the projection 12 of the truck 4 is contacted to the limit switch 11, the commutation to the motor 5 is interrupted and the truck 4 stops. Thus, the motor for general purposes can be used for the transit motor and the energy consumed at the application of braking. Furthermore, though the connections are changed over for reducing the power, other means can also be used. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-H07258886-A (JP)
Title: Electrogalvannealed steel sheet excellent in spot weldability
Inventor: TAIRA TAKETOSHI
IPC: C25D5/26
Filed: 1994-03-24
Abstract: PURPOSE:To maintain electric current required for the formation of the prescribed diameter of a nugget without being changed from that in the initial stage of welding even in the case of continuous use without exchanging electrodes and to improve the efficiency of spot welding by forming an oxidized film contg. Ni oxides on an electrogalvannealed layer. CONSTITUTION:A steel sheet in which a 1st layer on the surface is constituted of electrogalvanizing, and the top layer is constituted of an oxidized film contg. Ni oxides having 50 to 500Angstrom thickness is formed. This steel sheet can be obtd., after the production of an electoplated steel sheet of a single layer or multiple layers of ordinary Zn-Ni or Zn-Fe, by the method of coating the plated face with am oxidizing nickel nitrate soln. or executing cathodic electrolysis or the like. At the time of using this steel sheet for an automobile field or the like, the productivity of spot welding is improved as well as corrosion resistance, and it shows industrially high effect.
Patent JP-S62214067-A (JP)
Title: Net crawler
Inventor: MOROOKA KAZUO
IPC: B62D55/253
Filed: 1986-03-13
Abstract: PURPOSE:To make a crawler light, by constructing a net crawler of endless side members and a net member interposed between them. CONSTITUTION:A net crawler 10 is of a substantially endless loop shape and has a net member 12 interposed between its opposite side members 11. The side member 11 is formed to a prescribed length corresponding to a distance between wheels of a vehicle to which it is applied and cannot expand or contract by itself. The net member formed between the side members 11 is free to expand and contract due to its net shape in accordance with the shape of the ground which a tire contracts.
Patent JP-H11315698-A (JP)
Title: Steel shell segment
Inventor: NAKAMURA MINORU
IPC: E21D11/04
Filed: 1999-03-02
Abstract: PROBLEM TO BE SOLVED: To simplify a joint structure in the direction of circumference of a tunnel in a steel shell segment achieving the connection in the direction of tunnel axis by a boltless connection system. SOLUTION: This steel shell segment connects in the direction of tunnel axis (between segment rings) of mutually opposing steel shell segments 1 by the engagement of a male side engaging member 35 provided on a web 13 of a steel shell side frame 5 and a female side engaging member 36 through a water stop packing. A joint member in the direction of circumference of a tunnel (segment) in this steel shell segment 1 is constituted by a joint part platelike steel members 20 capable of coming into face-contact between mutually opposing members, and a water stop packing is mounted in a fitting groove 24 formed in this joint part platelike steel member 20 to join both joint part platelike steel members 20 water-tightly through this water stop packing.
Patent JP-S63221367-A (JP)
Title: Image recorder
Inventor: AOKI HIDEO
IPC: B41J2/44
Filed: 1987-03-11
Abstract: PURPOSE:To decrease the number of parts and man-hours for mounting and to reduce cost by providing an optical writing unit to the position on the down stream of a photosensitive body and providing an optical writing unit housing as a part of a base cover of a device body integrally therewith. CONSTITUTION:The light which is emitted from a laser unit 21 and flickers according to an image information signal is reflected by a 1st mirror 22 and enters a deflection mirror 24 mounted integrally to a shaft of a scanner motor 23, by which the light is repeatedly deflected in a specified angle range. The deflected light is guided through an f-theta lens 25, a 2nd mirror 26, and a cylindrical lens 27 to a photosensitive drum 1 positioned in the upper part. Main scanning is executed by deflection of the incident light and the auxiliary scanning is executed by rotation of the drum 1, by which the image corresponding to the image information signal is written on the drum. Since the optical writing unit housing 28a is integrally constituted as part of the base cover 28 of the device body, the number of the parts for mounting the housing to the device body and the man-hours for mounting the housing are decreased.
Patent JP-H0726354-A (JP)
Title: Method for forming amorphous alloy
Inventor: KATO AKIRA
IPC: C22C45/00
Filed: 1993-03-15
Abstract: PURPOSE:To expand the ranges of the time and temp. up to the crystallization of an amorphous alloy material at the time of heating, almost independently of the compsn. and without forming its state into a fluidized one in a supercooling liq. state. CONSTITUTION:An amorphous alloy material is heated at >=100k/s temp. rising rate, its forming temp. is regulated to the range between a glass transition temp. (Tg) expanded in accordance with the temp. rising rate and a crystallization temp. (Tx), and the amorphous alloy material is formed at the forming temp. By rapidly executing heating, the DELTATx range (Tx-Tg) is expanded, the time till the formation of the crystallization is prolonged and the formable time is prolonged, so that forming is made possible while an amorphous state is retained even as for a formed body having a complicated shape.
Patent JP-H06262461-A (JP)
Title: Method and device for clamping workpiece
Inventor: MORI KIYOSHI
IPC: B22D31/00
Filed: 1993-03-15
Abstract: PURPOSE:To provide a method for clamping a workpiece wherein a position relation between the workpiece and a work machine can be invariably held and machining accuracy of the workpiece can be improved even in the case of providing foreign matter and deformation in a clamp surface of the workpiece. CONSTITUTION:A workpiece 20 is clamped onto a work plate 5 formed into a floating structure relating to a base plate 2, and the work plate 5 is fixed to the base plate 2 while pressing reference points 21 of the workpiece to a reference plate 11.
Patent JP-S52136542-A (JP)
Title: Elastic surface wave filter
Inventor: IKUSHIMA HIROSHI
IPC: H03H3/08
Filed: 1976-05-11
Abstract: PURPOSE:To enhance the filtering property by securing a such structure that the conductive material may not put close to both surface of the piezoelectric substance which has a crossed finger type electrode.
Patent JP-S538071-A (JP)
Title: Semiconductor device
Inventor: BABA YASUMASA
IPC: H01L29/73
Filed: 1977-05-11
Abstract: PURPOSE: To prolong the peripheral length of emitters and increase the performance index of emitter patterns by forming the emitter regions to be formed within base regions to a plurality of nearly perfect closed loops and providing base electrodes to the inside and outside region surfaces thereof respectively. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-S59178896-A (JP)
Title: Honey-comb diaphragm of speaker
Inventor: TAKAHASHI MASANORI
IPC: H04R7/08
Filed: 1983-03-30
Abstract: PURPOSE:To improve reproducing characteristic by using a sheet of paper for a skin member adhered to both faces of a core member, changing the hardness of the skin used for the front side and the skin used for the rear side relatively and controlling internal loss and rigidity so as to decrease a peak due to split resonance generated at a high frequency and the film resonance of the skin. CONSTITUTION:The skin member 2 at the rear side and the skin member 3 of the front side are formed by manufacturing to sheets a pulp member and pressing it. Further, the skin members 2 and 3 are formed with different pressure at the pressing in the process of forming. That is, the skin members 2 and 3 constitute a honey-comb diaphragm with different hardness. In vibrating the honey- comb diaphragm while assembling a voice coil at an inner circumferential part, the skin member 4 or 3 formed softly with a small pressing pressure has a proper internal loss, and the skin member 3 or 2 formed with a large pressing pressure to be hard keeps a proper rigidity so as to suppress a peak due to the split resonance of a high frequency band thereby keeping the high frequency reproducing limit band.
Patent JP-H06265282-A (JP)
Title: Housingless oil cooler and manufacture thereof
Inventor: BEPPU TAKASHI
IPC: F01M5/00
Filed: 1993-03-15
Abstract: PURPOSE:To prevent deformation of a sealing surface of an oil filter due to excess clamping at the time of mounting the filter by forming a composite tank of an upper tank and a partition tank provided in the upper tank and disposing at its flat part on a core. CONSTITUTION:An upper tank 111 covering an upper part of a core 1 is provided with a closed space rigid object integral with a partition tank 113 through a sheet connector 125. An opening 119 of an inner cylinder 116 of the tank 111 is coupled to the connector 125, which is mechanically connected to an oil flow-out tube 47. The tank ill is fixed to a protruding partition of the tank 113 through an annular top 115 to be supported, and supported at its opening 119 of the cylinder 116 to a flat part 114 of the tank 113 through the connector 125. An annular flange of the connector 125 is fixed to the opening 119 of the tank 111 by brazing.
Patent JP-S60200479-A (JP)
Inventor: KIYOFUJI MASAMI
IPC: H05K9/00
Filed: 1984-03-23
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-S59178562-A (JP)
Title: Multiplexed library system for message
Inventor: KITANO SADAHIRO
IPC: G06F17/30
Filed: 1983-03-30
Abstract: PURPOSE:To simplify retrieval of message library by multiplexing single library inside by the number of attributes, retrieving each unit library by the same key, and deciding attribute automatically. CONSTITUTION:Terminals 2, 3 can advance processing simultaneously with a host 1 in form of a dialogue, and the application program processing section 4 of the device 1 controls execution of corresponding application program. On receiving instruction for message transmission from the application program, a message processing section 5 retrieves one of Japanese message library 7 or English numeral message library 8 according to the key that indicates the content, and according to the result, extracts objective message data. At this time, a message library controlling section 6 decides message to be sent out basing on data of an attribute table 10 and selects the device 7 or 8. Thus, retrieval of the library can be simplified as it can be done only by the key.
Patent JP-H07237127-A (JP)
Title: Metal bond grinding wheel
Inventor: MINAGAWA EIJI
IPC: B24D3/06
Filed: 1994-02-28
Abstract: PURPOSE:To provide sufficient grinding precision by securing excellently the anti-wear quality and rigidity of a connection phase and at the same time increase autogenesis edging action by expediting the micro collapse of the surface of the connection phase. CONSTITUTION:In the case of a metal bond grinding wheel which is made up of super grinding grains of diamonds or CBN or the like being scattered in a metal connection phase, the metal connection phase contains respectively 20-25wt.% of Sn, 1-6wt.% of Ge, 0-15wt.% of Ag, and Cu for the remaining portion, and in its formation, deposit particles consisting of an inter-metal chemical compound whose major constituent elements are Cu and Sn, are scattered.
Patent JP-H10256118-A (JP)
Title: Method and apparatus for treating resist pattern
Inventor: SAKAI JIYUNJIROU
IPC: G03F7/038
Filed: 1997-03-10
Abstract: PROBLEM TO BE SOLVED: To realize a high heat resistance and high etching resistance without causing the vol. shrinkage of a resist pattern, by irradiating ultraviolet rays on the chemical amplification type resist pattern being heated in a humidity- controlled gas atmosphere. SOLUTION: The method comprises mixing 5wt.% in solid component of acid generator triphenylsulfonium trifluoromethane sulfonate with polyhydroxystyrene in which 30% of OH group is converted to tetrahydropyranile to be dissolved in propyleneglycolmonomethylether acetate to prepare a resist, coating the resist on a Si wafer, heat treating to vaporize solvent, etc., selectively exposing and developing to obtain a resist pattern 1, and irradiating ultraviolet rays on the resist pattern 1 while being heated in a humidity-controlled gas atmosphere, thus realizing a high heat resistance and high etching resistance.