baber/WOPTO huggingface dataset:
Patent JP-H113963-A (JP)
Title: Resin-sealed semiconductor device and lead frame
Inventor: TAKAHASHI YOSHIHARU
IPC: H01L23/50
Filed: 1997-06-12
Abstract: PROBLEM TO BE SOLVED: To enhance the molding accuracy of the inner lead of a lead frame, by a method wherein the lead frame is subjected to bending work downwards excluding the planar part of the bonding area of the inner lead, and the outer lead of the lead frame is made to lead out from the bottom of a package. SOLUTION: A semiconductor device is constituted into a structure, wherein, with a semiconductor chip 1 fixed by adhesion on a die pad 3 via a silver paste 2, an electrode part 1a of the chip 1 and an inner lead 4a of a lead frame 4 are connected with each other through a gold wire 5, and thereafter, the device is formed into the structure of a resin-sealed package 6 excluding the part to be used as an outer lead 4b of the lead frame 4. Then with the lead frame 4 subjected to bending work on its lower side at roughly a right angle leaving the flat part 4d of the bonding area of the inner lead 4a, the lead 4b is led out from the bottom 6a of the package 6 and is provided in parallel to the bottom 6a along the bottom 6a. As a result, the reliability in mounting the chip 1 on a substrate can be enhanced.
Patent JP-S63318732-A (JP)
Title: Manufacture of semiconductor device
Inventor: YOKOGAWA TOSHIYA
IPC: G02B6/12
Filed: 1987-06-22
Abstract: PURPOSE:To form a semiconductor element easily to a desired section on a semiconductor substrate selectively by previously forming a plural kind of crystal planes having different face index azimuths onto one main surface of the semiconductor substrate and epitaxial-growing a semiconductor thin-film onto one main surface of the substrate. CONSTITUTION:A plural kind of crystal planes having different face index azimuths are shaped previously onto one main surface of a semiconductor substrate, and a semiconductor thin-film is epitaxial grown onto one main surface of the substrate. The semiconductor substrate such as a GaAs substrate 1 having a (100) face orientation is etched to a striped shape, using an SiO2 film 6 as a mask. An oxalic acid group solution is employed for etching, the stripe direction of a trench runs parallel with <011>, and the face index of an exposed surface in the trench is brought to (100) and {111} A faces. The substrate is etched again by using a hydrochloric acid group etchant, a surface oxide film is removed, and epitaxial growth is conducted onto the substrate in succession through an MOVPE method, thus shaping a first ZnS clad layer 2, a ZnSSe optical guide layer 3 and a second ZnS clad layer 4.
Patent JP-S6312689-A (JP)
Title: Production of precursor pitch for carbon fiber
Inventor: KITAMURA TAKEMUNE
IPC: C10C3/06
Filed: 1986-07-03
Abstract: PURPOSE:To obtain a precursor pitch for high-performance carbon fiber, rich in aromatic components, having highly selective orientation and composed of an easily graphitizable condensed polycyclic aromatic compound, by using a heavy oil having specific properties as a raw material. CONSTITUTION:The objective precursor pitch is produced from a heavy oil containing 5-20% saturated hydrocarbon component, >=80% aromatic hydrocarbon component, <=5% asphaltene component and 40-70% aromatic carbon and having an initial boiling point of >=200 deg.C. EFFECT:The melt-spinning of the precursor pitch can be carried out continuously at a relatively low temperature (300-340 deg.C) at a speed of >=500m/min. The produced pitch fiber has high oxidation property and can be infusibilized in a short time. A high-performance carbon fiber having a tensile strength of >=300kg/mm<2> and an elastic modulus of >=30T/mm<2> can be produced by infusibilizing the pitch fiber and carbonizing at 1,300-1,500 deg.C.
Patent JP-2000347450-A (JP)
Title: Electrostatic charge image developing toner, and image forming method
Inventor: HASEGAWA HISAMI
IPC: G03G9/087
Filed: 1999-06-02
Abstract: PROBLEM TO BE SOLVED: To provide an electrostatic charge image developing toner and an image forming method using an exter additive capable of executing a role as a transfer enhancing agent for a long time and exhibiting good transfer performance for a long time and preventing or restraining occurrence of releasing or sinking of the external additive and deterioration of a transfer device and causing image defects. SOLUTION: An image is formed by developing a latent image formed on a latent image holding substrate 1 with a developer and the developed image is electrostatically transferred to a transfer material 10 in the transfer device 5 in contact with the image holding substrate 1. The toner contained in the developer comprises at least a binder resin, a colorant and an external addive, and the toner contains a bisphenol A-PO adduct and a bisphenol A-EO adduct in a total amount of <=2.0 weight %.
Patent JP-H0320685-A (JP)
Title: Electromagnetic conversion characteristic measuring apparatus for magnetic tape
Inventor: KAWAKITA TOSHIO
IPC: G01R33/12
Filed: 1989-06-16
Abstract: PURPOSE:To enable measurement of an electromagnetic conversion characteristic without impairing the magnetic layer of a tape by performing fine adjustment of a magnetic head in a direction parallel with the axis of a rotary cylinder each time the magnetic head gets in slide contact with the surface of the magnetic layer of the tape specified times. CONSTITUTION:A magnetic head 5 is brought in slide contact with the surface of a magnetic layer of a magnetic tape 4 wound on the outer circumference of a rotary cylinder 1 to record 15 magnetism and measure 16 an electromagnetic conversion property. In an apparatus of such a kind, when specified revolutions of the cylinder 1 are measured with a rotation pulse counter 12 connected to a motor 10, a piezoelectric element 7 works to finely adjust the head 5 in a direction parallel with a rotary shaft of the cylinder 1 and a slide contact position of the tape 4 with the surface of the magnetic layer is moved according to a track width. Then, the same operations of measuring electromagnetic conversion characteristic are repeated on adjacent tracks. Here, the slide contact position of the tape 4 with the head 5 is moved after each specified revolutions thereby enabling accurate measurement of a reconstruction output without impairing the magnetic layer of the tape 4.
Patent JP-2000349668-A (JP)
Title: Digital broadcast receiver
Inventor: AKAZAWA MIKIHIRO
IPC: H04B1/16
Filed: 1999-06-02
Abstract: PROBLEM TO BE SOLVED: To obtain a digital broadcast receiver by controlling a demodulation carrier frequency so that a difference between a frequency of an intermediate frequency signal received by a demodulator and the demodulation carrier frequency is a prescribed value thereby limiting the synchronization time within a prescribed time and conducting high-speed channel selection and searching. SOLUTION: Difference frequency value detectors 9, 13 in the digital broadcast receiver R measure a difference frequency (ΔF1st) between an intermediate frequency (F(sif)) and a demodulation carrier frequency (F(Sca)). Reception control sections 13, 7 correct the demodulation carrier frequency (FSca) so that the measured difference frequency (Δ) is within a 1st difference frequency region where a rate of change in a synchronization time with respect to the difference frequency between the intermediate frequency and the demodulated carrier frequency is small. The synchronization time (Ts) can be limited within a prescribed time by demodulating the intermediate frequency (F(Sif)) with the corrected demodulation carrier frequency (FSca).
Patent JP-H111299-A (JP)
Title: Oil feed device
Inventor: ABE SHIGERU
IPC: H04Q9/00
Filed: 1997-06-12
Abstract: PROBLEM TO BE SOLVED: To efficiently operate a plurality of submerged pumps by inserting the submerged pumps in a plurality of tanks in which the single kind of oil is stored. SOLUTION: In an oil feed device 1 to be installed in a gas station, measuring machines 2-4 are connected to underground tanks 5A, 5B through an oil feed pipe 6. A submerged pump control device 26 selectively controls the drive of the submerged pumps 18A, 18B based on the signal to be outputted from a nozzle switch 10 of the measuring machines 2-4, and when the number of nozzles during the oil feed is <=2, either of the submerged pumps 18A, 18B which is more in the residual quantity is started based on the residual quantity in the underground tanks 5A, 5B to be detected by level gages 17A, 17B. Because two submerged pumps 18A, 18B are simultaneously driven, or either of the submerged pumps is driven according to the number (n) of the nozzles during the oil feed, the oil of the quantity corresponding to the total oil feed quantity to be fed by the measuring machines 2-4 can be led.
Patent JP-H0448053-A (JP)
Title: Fe-base soft-magnetic alloy and its production and magnetic core using the same
Inventor: SAWA TAKAO
IPC: C21D6/00
Filed: 1990-06-15
Abstract: PURPOSE:To obtain an iron-base soft-magnetic alloy having low iron loss, high saturation magnetic flux density, and low magnetostriction in high frequency region by subjecting a rapidly solidified body of a molten metal containing iron-base alloy, etc., to heat treatment and precipitating fine crystalline grains in the structure. CONSTITUTION:A molten metal containing molten iron-base alloy and ceramic material is formed into a rapidly solidified body by a rapid solidification process, such as chill block melt spinning, and this rapidly solidified body is heat-treated at a temp. in the vicinity of or not lower than its crystallization temp., by which fine crystalline grains are precipitated in the structure. Further, the above molten metal has a composition represented by formula, where X means one or more compounds selected from ceramic materials capable of being melted at the time of preparing a rapidly solidified body, M means one or more elements among Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, and W, M' means one or more kinds among Mn, platinum group elements, Ag, Au, Zn, Al, Ga, In, Sn, and rare earth elements, A means Co and/or Ni, and Z means one or more kinds among B, C, P, and Ge. Moreover, the symbols (a), (b), (c), (d), (e), (f), and (g) stand for, by atom, 0.1-5%, 0.1-5%, 0.1-10%, 0-10%, 0-40%, 5-25%, and 2-20%, respectively, and the sum of (f) and (g) is 12-31%.
Patent JP-S6135039-A (JP)
Title: Communication controller having fault diagnostic function
Inventor: NISHIDA AZUSA
IPC: H04L69/40
Filed: 1984-07-27
Abstract: PURPOSE:To obtain a communication controller with high reliability by transmitting and receiving a signal between a signal transmission section and a signal reception section of a signal transmitter/receiver depending on a reception error and applying test operation. CONSTITUTION:A program peripheral interface PP1 selects a channel 1 and receives a data from an opposite communication controller. Then the presence or absence of a communication end signal is decided and when this signal is not received, the parity check for the received data is executed and when no error is detected, an affirmative response signal is transmitted and then the next data is received. This processing is repeated until a communication end signal code is received. When the parity error is detected in the process of this processing, channels 1, 3 are switched to channels 2, 4 to conduct the test processing. As a result of the test, when any error is detected, it means that a fault exists in a common communication controller, the controller is brought to an emergency stop. If no error is detected, it is warned as the presence of an abnormality in a cable or an opposite communication controller.
Patent JP-S6046934-A (JP)
Title: Manufacture of quartz glass
Inventor: TOKI MOTOYUKI
IPC: C03B19/12
Filed: 1983-08-25
Abstract: PURPOSE:To manufacture a flat quartz glass plate having excellent flatness, at a low cost, by the sol-gel process for the manufacture of quartz glass, by placing a dry gel plate parallelly on a heat-resistant plate placed parallel to the floor in the calcination of dry gel. CONSTITUTION:A metal alkoxide such as ethyl silicate is hydrolyzed with an aqueous solution of hydrochloric acid, fine silica powder such as white carbon is added and dispersed homogeneously in the hydrolyzed solution, and the dispersion is adjusted to 4-6pH. The obtained sol is charged in a container having flat bottom, gelatinized, and dried allowing the shrinkage to obtain a flat dry gel. Since the obtained dry gel plate is liable to warp or bend to produce a warped or bent quartz glass plate by sintering, the sintering of the dry gel is carried out on a heat-resistant plate placed parallel to the floor. The plate flattens during the sintering process by its own weight, and a flat quartz glass plate can be manufactured at a low cost.
Patent JP-S5779711-A (JP)
Title: Antenna device
Inventor: KATAKI TAKASHI
IPC: H01Q21/29
Filed: 1980-11-05
Abstract: PURPOSE:To eliminate the blocking by a subreflection mirror and to decrease the side lobe, by providing a subreflection mirror in front of the main reflecting mirror and the 2nd radiation section consisting of the subradiator and the submirror at the submirror. CONSTITUTION:Signals from a transmission source are applied mostly to a power feeding horn 4. Electromagnetic waves radiated from the horn 4 form the 1st radiation beam via a subreflecting mirror 3 and a main reflecting mirror 1. A part of the signal from the transmission source is applied to a subhorn 5. Electromagnetic waves radiated from the subhorn 5 form the 2nd radiation beam  through reflection on a submirror surface 6. A phase adjusting means is provided  at the power feeding line to the subhorn 5 so that the effect of blocking of the  1st radiation beam pattern can be compensated by the 2nd radiation beam pattern.
Patent JP-S5278460-A (JP)
Title: Overflow detecting and memorizing circuit
Inventor: SHIGA KAZUHIRO
IPC: H03K21/08
Filed: 1975-12-24
Abstract: PURPOSE:To provide an overflow detecting and memorizing circuit which can perform the same function by the use of a circuit having a resistor, a capacitor and a gate IC element as that obtained by the use of an expensive flip-flop IC element.
Patent JP-H0710910-A (JP)
Title: Production of ethylene copolymer
Inventor: MAEYA AKIKO
IPC: C08F210/00
Filed: 1993-06-25
Abstract: PURPOSE:To provide a method for stably and efficiently producing an ethylene copolymer through the high-temp. and high-pressure polymerization of ethylene with a radical-polymerizable monomer (a) copolymerizable therewith by preventing the heat polymerization of the monomer (a). CONSTITUTION:This production method comprises polymerizing ethylene with a radical-polymerizable monomer (a) copolymerizable therewith in the presence of a polymerization initiator at 100-300 deg.C and 500-3,000kg/cm<2> or higher and introducing a polymerization inhibitor into the system in the range of from the polymerization zone to the inlet of a first separator.
Patent JP-S6312138-A (JP)
Title: Pattern method of copper
Inventor: HOSHINO KAZUHIRO
IPC: H01L21/302
Filed: 1986-07-02
Abstract: PURPOSE:To perform the patterning of copper without increasing the resistance value of the copper, by forming a mask film on the surface of the copper and etching away unmasked parts using neutron irradiation. CONSTITUTION:A field oxide film 2, a contact metal 3 comprising titanium, a barrier metal 4 comprising titanium nitride and copper 5 are sequentially formed on a silicon substrate 1. Then, a mask film 6 of titanium nitride is formed on the copper 5. Thereafter, neutral argon atoms are projected by using a Kaufmann ion milling apparatus, the copper 5 is etched, and patterning is performed. Then, the nitride 4, which is not covered with the nitride 6 and the copper 5, and the titanium 3 beneath the nitride 4 are removed by reactive ion etching. Thus the copper 5 is patterned, and an interconnection can be formed.
Patent JP-S6046916-A (JP)
Title: Modification of zeolite
Inventor: YATSUGI HIDEO
IPC: C01B39/04
Filed: 1983-08-26
Abstract: PURPOSE:To produce faujasite zeolite stable to hydrothermal treatment, by repeating the treatment with an aqueous solution of an ammonium salt and the calcination treatment. CONSTITUTION:The objective modification can be carried out by (1) treating a faujasite zeolite containing alkali or alkaline earth metal with an aqueous solution of an ammonium salt (4.5-5pH) to convert about 50-67% of the metal to ammonium ion, and calcining the product at 400-600 deg.C for 2-4hr, (2) treating the calcined zeolite again with an aqueous solution of an ammonium salt (2.5- 4.5pH) to decrease the amount of the alkali or alkaline earth metal remaining in the zeolite to 1.5-2wt% (in terms of oxide), and (3) calcining the zeolite at 400-750 deg.C for 2-4hr.
Patent JP-H0322275-A (JP)
Title: Cleaning cassette
Inventor: MIYAJIMA GIICHI
IPC: G11B7/121
Filed: 1989-06-20
Abstract: PURPOSE:To stably remove a foreign matter such as dust and trash on an objective lens by generating an air current toward an optical system facing the surface of a cassette when the cassette is rotated. CONSTITUTION:A disk 1A is housed in the internal part of a cleaning cassette 1 and on a surface in the lower side of the disk 1A, plural grooves 1B are formed to be radially extended in the outer peripheral direction of the disk 1A. Thus, when the foreign matter such as the dust and trash, etc., is stuck to the part of an upper surface 5A of an objective lens 5 and information can not be recorded or reproduced on the disk 1A by normal laser power, the cassette 1 is used. By rotating the disk 1A which is provided in the internal part of this cassette 1 and fixed to a turn table 9, an air current 20 is generated by the grooves 1B on a disk surface 1C facing the optical head 6 and the foreign matter such as the dust and trash, etc, stuck to the upper surface 5a of the lens 5 are blown off.
Patent JP-S6313510-A (JP)
Title: Surface acoustic wave filter
Inventor: TAKAHASHI TOSHIMITSU
IPC: H03H9/145
Filed: 1986-07-04
Abstract: PURPOSE:To obtain a surface acoustic wave filter with a low loss by designing the titled filter such that an electrode finger cross part of a 1st interdigital electrode group and a common meander electrode and an electrode finger cross part of a 2nd interdigital electrode group and the common meander electrode form one propagation line without any isolated or projecing part. CONSTITUTION:The 1st electrodes 1-1, 1-2, the 2nd electrodes 2-1, 2-2 and common meander electrodes 3-1, 3-2 are formed as the split form. In order to bring the cross width of electrode fingers of parts 15a-15e of the common meander electrode having one finger and of adjacent electrodes and the cross width of the electrode fingers of parts 16a-16c of the common meander electrode having three fingers and of adjacent electrodes on one propagation line, one of the electrode fingers of the adjacent split electrodes to the common meander electrode having one finger is cut off on its way and connected to the other electrode finger. Each two of the common meander electrodes 3-1, 3-2 is cut off on its way at the 1st and 2nd electrodes 1-1, 1-2, 2-1, 2-2 respectively. Since the cross parts exist on one and same propagation line, the conversion loss by two-way propagation is improved.
Patent JP-S5583549-A (JP)
Title: Detecting method of drill breakage in drilling machine
Inventor: NAKAI MASANORI
IPC: B23Q17/09
Filed: 1978-12-20
Abstract: PURPOSE:To make a breakage of the drill momentarily detectable, by detecting the drill coming to be in a state of no load. CONSTITUTION:A drill machine 3 is controlled by a machine center 1 of NC device through a motor drive circuit 4. In each of drill driving motors M1-M4, is provided a motor, that is, drill rotational speed detector 2-1-2-4. A measured rotational speed signal from these detectors and a high frequency signal from a power source 5 are fed to a comparator 9-1-9-4, with a phase difference detected between the both. In case of no presence of this phase difference, a signal is fed to the machine center through an OR circuit 7, with the power source made promptly OFF.
Patent JP-S6049327-A (JP)
Title: Disk film projecting device
Inventor: NAKAYAMA YOSHIAKI
IPC: G03B21/10
Filed: 1983-08-29
Abstract: PURPOSE:To easily discriminate the number of a frame at a projection position by engaging a rotating driving shaft with a disk film in relative position relation in an invariably specific circumferential direction when the disk film is loaded. CONSTITUTION:While a key 221 is fitted in the key groove 508 of a frame 502 while inserted at the normal position of a cartridge holding member 208, the circumferential relative position relation between the key 221 and a frame number display ring 630 is so fixed that a frame 512 of the disk film in a cartridge 400 at the position of an opening corresponds to a frame number display 632. This fixation is determined by the circumferential relative position relation of the opening of a gear 224 to the key 221 of a tip member 216 and the circumferential relative position relation between a projection 252 engaging the opening and the frame number display ring 630.
Patent JP-S5489688-A (JP)
Title: Anion selective electrode
Inventor: MIYAGI HIROYUKI
IPC: G01N27/333
Filed: 1977-12-27
Abstract: PURPOSE: To make responsiveness faster even for the sample containing proteins such as bio-liquid by using phenyl alkyl alcohol which is hard to dissolve in water as a plasticizer of sensitive membrane.  
     CONSTITUTION: Quaternary ammonium salt such as tri-n-dodecyl methyl ammonium chloride having 1 to 4 alkyl chains of C 7-16  as an anion sensitive material is dispersed at a concentration of particularly about 15 to 20 wt% in a backing membrane composed of a high polymer material such as poly(vinylchloride). To this sensitive membrane is further dispersed, as a plasticizer, phenol alkyl alcohol of hard solubility in water of dielectric constant 8 to 20, e.g., phenyl pentanol, at 1 to 30%, preferably 10 to 20% as weight concentration. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-S5281397-A (JP)
Title: Preparation of polymers
Inventor: SUGIE TOSHINORI
IPC: C08G18/00
Filed: 1975-12-29
Abstract: PURPOSE: To prepare high-molecular weight polymers having various tensile strength, elongation, etc. by carrying out the chain extension of polybutylene terephthalate with isocyanate prepolymers in extruders, in the presence of glass fibers when occasion demands. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-H081212-A (JP)
Title: Roll for rolling stage having heat-resistant, fouling-resistant film welded by electric discharge on surface
Inventor: TASHIRO HISAO
IPC: C23C4/10
Filed: 1994-06-16
Abstract: PURPOSE:To obtain the rolls for hot or cold rolling stages excellent in heat resistance and fouling resistance by forming a fouling-resistant metallic layer, ceramic layer or cermet layer welded by electric discharge on the surface of a base material. CONSTITUTION:An electric discharge coat treating method ESD in which an electrode to be a welding material is brought into contact with the surface of the base metal for rolls is applied as a means for forming the heat-resistant, fouling-resistant and wear-resistant surface film on the surface of base material for rolls. Metal or cermet is welded on the surface of base material for rolls with small heat input by this ESD method and, according to this method, deformation of the base material for rolls is hardly generated, the adhesion strength of the coat is raised due to the formation of a thin fusion-diffusion layer in the boundary part of weld. Further, by properly selecting the material for sealing treatment of metal or cermit of the surface layer, the prolongment of life is attained. As metal welded on the surface of roll, a material with which a firm oxidized film is formed, for example, a Ni-Cr alloy, autogenous alloy for thermal spraying or the like is listed.