baber/WOPTO huggingface dataset:
Patent JP-S58153344-A (JP)
Title: Retainer type wafer chuck
Inventor: KENBOU YUKIO
IPC: H01L21/683
Filed: 1982-03-05
Abstract: PURPOSE:To obtain accurately machining flatness by securing a supporting plate having equal thickness and small rigidity onto a flat surface having through hole, closing the outer periphery in a ring shape, forming the through hole and the prescribed ruggedness in the inner region and attacting a wafer via the plate. CONSTITUTION:A chuck 6 in which an Si substrate is accurately finished on the surface, is bonded fixedly at the end on a cylindrical base 10, and a supporting plate 7 is bonded fixed at the end 8 on the chuck 6. The supporting plate 7 is formed by etching a phosphorus bronze plate having a uniform thickness, the outer periphery is closed in a ring shape 7a, formed with a through hole 7b, a convex part 7c equal in thickness to the ring, and a recess 7d thinner than the ring, plated with Cr, lapped, thereby finishing with irregular thickness less than 1mum. When wafers 1 are attracted through the plate 7 having less than 1mum of flatness to the chuck surface 6 having less than 1mum of flatness, the wafers are maintained at an equal interval on the chuck surface 6 with strong attracting force provided due to the product of the area of the recess 7d and the vacuum strength. With this structure, excellent wafer chuck can be obtained, thereby facilitating maintenance.
Patent JP-H04275057-A (JP)
Title: Controller for neutral point clamp type power conversion device
Inventor: TANAKA SHIGERU
IPC: H02M7/48
Filed: 1991-02-28
Abstract: PURPOSE:To prevent damage of an element due to application of an entire DC voltage to one element when a PWM control input signal is abruptly varied in a neutral point clamp type power conversion device having four self-arc extinguishing elements connected in series, free-wheeling diodes connected in anti-parallel with the elements, and clamping diodes. CONSTITUTION:A triangular wave generator TRG for generating a triangular wave X varying at one at the sides of zero and positive as a pulse width modulation control carrier signal and a triangular wave Y varying at the other in the same phase as the X at the sides of zero and negative, and means for comparing the waves X and Y with a PWM control input signal to form gate signals g1, g2, are provided. And, a power conversion device is controlled by using the signals g1 and g2.
Patent JP-H02213974-A (JP)
Title: Electronic calculator with reading function
Inventor: UCHIKAWA YOSHIRO
IPC: G06K9/00
Filed: 1989-02-14
Abstract: PURPOSE:To facilitate the input of multi-digit numerals by providing a means which reads the numerals and symbols written on a paper sheet as pictures as an optical sensor and a scan position detecting means and a means which recognizes the numerals from those pictures. CONSTITUTION:A reading part including an image sensor 11 for reading and the character recognizing software is used as an input means of a computer. The printed numerals and the special symbols like Yen, etc., can be recognized by the pattern matching method. In other words, several types of forms of characters are previously registered in a ROM 42 and the coincidence degree is calculated between these forms of characters and a fetched normalized picture. Then the forms of characters showing the highest coincidence degree and the levels higher than a standard coincidence degree are defined as the recognized data. Thus the picture data read via the manual scan on an original is converted into the data equal to that inputted virtually via a numeral key and the recognized software. Then the prescribed arithmetic operations selected by the arithmetic processing keys 5a-5e are carried out, and the results of these operations are displayed.
Patent JP-S62191936-A (JP)
Title: I/o control system in virtual computer system
Inventor: TORII YOSHIHARU
IPC: G06F13/10
Filed: 1986-02-19
Abstract: PURPOSE:To shorten the execution time of a virtual computer by permitting a data controller to execute the conversions of I/O equipments and of addresses instead of executing by an actual central processing unit. CONSTITUTION:A main memory device 1 is provided with a virtual I/O device/ actual I/O equipment conversion table which has information to associate the I/O equipment of each virtual computer with that of an actual computer system and type-by-type information on the associated I/O equipments, and address conversion tables BMAT and VMAT with information to associate the address of each virtual computer with that of the actual computer system. The central processing unit 3 has a means to report to the data controller that the unit 3 detects an I/O instruction, which is derived from the execution by the virtual computer, if that happens. The I/O instruction being reported through a communi cation means, the data controller converts a virtual computer identifier, a virtual I/O equipment address, a virtual channel/program into the I/OP equipment of the actual computer system and an actual channel program with the aid of said virtual I/O equipment conversion table and said address conversion table to execute the input/output operation.
Patent JP-S56130551-A (JP)
Title: Induced current heating pipe of thin thickness
Inventor: ANDOU MASAO
IPC: F24H1/10
Filed: 1980-03-18
Abstract: PURPOSE: To improve safety and to contrive miniaturize the condutive ferromagnetic pipe, by making the thickness of the pipe thinner than twice of the depth of outermost layer where the alternating current flowing through the ferromagnetic pipe, as well as making the voltage appearing on the outer face substantially zero.  
     CONSTITUTION: Against the common primary circuit consisting of the insulated  wire 2, the induced current heating pipes 3 and 4 are provided in the manner to  form the independent secondary circuit for each pair. These heating pipes 3 and 4  are made of the ferromagnetic pipes 3 and 4 butted closely to each other and welded mutually at both ends 5 and 6 to connect electrically. The length of the pipes 3 and 4 is kept not exceeding 1km as well as the thickness t of the magnetic pipes 3 and 4 is maintained in relation to 0.5s≤t<2s to the depth s of outer layer where the alternating current flows through the pipes 3 and 4. Thus, the voltage appears on the outer faces of the pipes 3 and 4 can be held substantially zero, or to the extent not to detract safety. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-H09207199-A (JP)
Title: Extrusion and drying apparatus for rubbery polymer
Inventor: TAKAHASHI NARIMOTO
IPC: B29K21/00
Filed: 1996-01-30
Abstract: PROBLEM TO BE SOLVED: To eliminate a clamshell screw biting-in inferior phenomenon and to subject a wide range of a rubbery polymer to expansion drying at a practically sufficient drying rate by providing a longitudinal groove allowing the inside and outside of a cylinder to communicate with each other to the surface of a breaker bolt. SOLUTION: The heat given from a jacket 8 and a part of the external power rotating a screw 6 are converted to the pressure and temp. of an article to be dried and the article to be dried is fed to a die 2 at high temp. under high pressure and extruded to the atmosphere from the jet port 3 of the die. Fine grooves 71 allowing the inside and outside of a cylinder to communicate with each other are provided to the surface of a breaker bolt 7. By this constitution, confined steam is allowed to directly escape to the outside and the abnormal rise of pressure is eliminated and the biting-in to a clamshell screw is improved and expansion drying is efficiently performed.
Patent JP-H11234669-A (JP)
Title: Image compression processing unit and its method, and digital camera usign the unit
Inventor: KURASHIGE TOMOYUKI
IPC: H04N19/00
Filed: 1998-02-17
Abstract: PROBLEM TO BE SOLVED: To prevent image quality deterioration even at a high compression rate by updating compression parameters for each spatial frequency based on a calculation result of a space frequency distribution in an image so as to attain quantization corresponding to the characteristic of an image compression. SOLUTION: An analog image signal received from an input port 1 is converted into a digital signal by an image A/D converter 2 and an image signal processing circuit 3 applies a general gamma correction processing and a processing such as contour emphasis to the digital signal. A high frequency extraction circuit 6 detects a high frequency component with a high spatial frequency from the signal processed by the image signal processing circuit 3 and gives information to a compression control circuit 5. The compression control circuit 5 adjusts a quantization accuracy to keep a code amount rate within a prescribed range to compress the data so that a buffer in an image compression coder is not saturated. In the case of adjusting the code amount rate, not only a Q scale but also a Q table are changed. Thus, quantization accuracy is changed corresponding to an optical spatial frequency.
Patent JP-H02214004-A (JP)
Title: Signal recording system for video tape recorder
Inventor: TSUJIMOTO MASATOSHI
IPC: G11B5/02
Filed: 1989-02-14
Abstract: PURPOSE:To perform the recording of two or more systems of video and sound signals simultaneously by performing the multiplex recording of the video signal converted to an FM signal, a four-phase differential phase modulated video signal, and a frequency modulated sound signal on a magnetic tape by individual rotary magnetic head, respectively. CONSTITUTION:For example, two systems of signal input terminals 2 and 3 are provided. And the video signal from the input terminal 2 of a first system is recorded 6 after applying a conversion processing to the FM signal, and also, the sound signal from the terminal 2 is recorded by fixed magnetic heads 10a and 10b. Meanwhile, the video signal from the signal input terminal 3 of a second system is A/D-converted 11, and a digital signal on which a digital signal processing 12 is applied is four-phase differential phase QPSK-modulated 14, and also, the sound signal from the terminal 3 is frequency modulated 18. Thereby, the video signal converted to the FM signal, the four-phase differential phase modulated sound signal, and the frequency modulated voice signal can be multiplex recorded on the magnetic tape 7 by each of the rotary magnetic heads 6, 16, and 20, individually.
Patent JP-H03238790-A (JP)
Title: High frequency heating apparatus
Inventor: IWABUCHI YASUSHI
IPC: H05B6/78
Filed: 1990-02-15
Abstract: PURPOSE:To exhibit an attenuating effect over a wide frequency band by alternately forming electric wave attenuating grooves which are different in depth by means of U-shaped metallic bodies and providing cuts on one of facing second and third faces with intervals of a half or less of a free space wavelength of leakage electric waves. CONSTITUTION:U-shaped metallic bodies 7 are arranged along a moving direction of a belt to constitute electric wave attenuating grooves A10, B11 which are alternately different in resonance frequency, while cuts 12 are provided along lengthwise on one of a second face 7b and a third face 7c which are facing each other in the U-shaped metallic body 7 with intervals of a half or less of a free space wavelength lambda0. Thus electric waves entering the electric wave attenuating grooves A10, B11 are TEM waves similar to those at the time of entering a strip line with a width of lambda0/2 or less, so that the wavelength of the electric waves is the free space wavelength lambda0. Thus even if an entrance is wider than the free space wavelength, sufficient electric wave sealing is possible over a wide frequency range.
Patent JP-S58153059-A (JP)
Inventor: KAMIMURA KAZUYUKI
IPC: F25B29/00
Filed: 1982-03-05
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-H11227800-A (JP)
Title: Easily unsealable butt-seam bag and base sheet for manufacturing same
Inventor: KINUGAWA TADASHI
IPC: B65D75/60
Filed: 1998-02-17
Abstract: PROBLEM TO BE SOLVED: To provide an easily unsealable butt-seam bag and a base sheet for manufacturing such an easily unsealable butt-seam bag, capable of unsealing the bag by easily tearing it from one side of the bag toward the other side thereof in spite of a butt-seam bag provided with a butt-seal strip on the back surface of the bag. SOLUTION: A sheet 1 consists of a multilayer film containing a base film layer and a thermally weldable resin layer. When a bag is broard in width, the base film layer preferably contains a laterally orientated film layer tearable in a width direction. A tearing and opening seal part 3 tearable in the width direction is provided at an appropriate place on one side X of the bag. A flaw zone 4 ranging from a region on the base portion side of a strip piece 2y on the side of a side Y of a butt-seal strip 2 to a region intruding slightly into a half surface By on the side of the side Y of the back surface of the bag is provided at least in the base film layer among the respective layers constituting the sheet 1.
Patent JP-S53120392-A (JP)
Title: Compound type semiconductor laser
Inventor: SEKI YASUO
IPC: H01S5/12
Filed: 1977-03-30
Abstract: PURPOSE:To integrally form a laser and a light modulator and reduce modulation power consumption by disposing a modulation electrode to one of Bragg reflectors of a distribution Bragg reflection type semiconductor, isolating and insulating excitation electrode electrically from this and making voltage applications respectively independent.
Patent JP-H04273251-A (JP)
Title: Image holding member and device formed by using this member
Inventor: SAKAI KIYOSHI
IPC: C08L63/00
Filed: 1991-02-28
Abstract: PURPOSE:To prolong a durability characteristic and to obtain a stable potential characteristic as well by providing a surface layer contg. a high melting polyester resin, curable resin and antioxidant. CONSTITUTION:The surface layer contg. the high melting polyester resin, the curable resin and the antioxidant is provided on the image forming member. This surface layer, i.e., protective layer 1, is disposed in the outermost part of the image holding member and protects the layer on the inner side thereof, i.e., a photoconductive layer 2, etc. Then, the image holding member which is substantially not chipped by a durability test, exhibits the stable potential characteristic and obviates the generation of strite images by flaws and the inclination in density by partial cracking even after long-term use is obtd. A polyethylene terephthalate resin, polybutyrene terephthalate resin, polysiclohexane dimethylene terephthalate resin, etc., are preferably used as the high melting polyester resin.
Patent JP-H01209459-A (JP)
Title: Multicolor electrophotographic device
Inventor: FUJII HARUO
IPC: G03G15/01
Filed: 1988-02-17
Abstract: PURPOSE:To charge toner which is developed on a latent image carrier in advance sufficiently and electrostatically at the time of electrostatic recharging by setting a discharging electrode for the electrostatic recharging which is used to form visual images of plural colors and the latent image carrier at a distance of <=4mm. CONSTITUTION:The discharging electrode of a recharger 15 as a 2nd electrostatic charger which is used to form visual images of plural colors and the latent image carrier 11 are placed at a distance of <=4mm. Consequently, the toner which is developed on the latent image carrier 11 previously is charged sufficiently and electrostatically to prevent toner which is developed on the latent image 11 previously from being scraped off in a developing device following a 2nd developing device 17 or entering a developing device following the 2nd developing device 17, thereby maintaining a stable image for a long period.
Patent JP-S55126793-A (JP)
Title: Multi tubular type heat exchanger
Inventor: ISHIKAWA MASANOMI
IPC: F28F9/18
Filed: 1979-03-23
Abstract: PURPOSE: To completely eliminate clearance that is possibly formed between the outer surface at the end portion of a heat-transmitting tube and a hole into which said tube is inserted, by inserting the heat-transmitting tube into the top end portion of said hole formed in a tube-supporting plate, and fixing the tube securely in the hole by way of fillet welding which forms penetration bead.  
     CONSTITUTION: Tube-supporting plate 1 is formed with a hole into which heat- transmitting tube 2 is to be inserted. The hole is preferably grooved at the top end portion of the tube-supporting plate 1 for facilitating to weld the end portion of tube 2. By the first penetration welding, heat-transmitting tube 2 can be welded to plate  1 in the manner that any clearance is not left at the joint portion by the function of penetration bead. Further, by applying multi-layer welding on the first welding  layer, if necessary,, it is possible to enhance reliability and strength at the welded  portion. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-S61194593-A (JP)
Inventor: ITO KEN
IPC: G07D9/00
Filed: 1985-02-23
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-H10230642-A (JP)
Title: Printer
Inventor: MURATA OSAMU
IPC: B41J5/30
Filed: 1997-02-19
Abstract: PROBLEM TO BE SOLVED: To prevent generation of loss due to interruption of switching in the way of one scanning operation by interrupting the switching when the transferred image data reaches a predetermined number and transferring an arbitrary image data from a first memory to a second memory. SOLUTION: Read and write pointers are returned back to a head address, i.e., reset. When it is determined that an image data to be recorded during single scan of a head is stored in a page memory, a CPU begins to transfer the image data from the page memory to a memory 13. The image data is preferably transferred using a direct memory access controller DRAC in order to reduce the load on the CPU. When the head image data is transferred at each time of scan, a volume of image data within the capacity of the memory 13 is transferred from the page memory.
Patent JP-H09220518-A (JP)
Title: Article bearing water-repelling coating film and manufacture thereof
Inventor: IMAGAWA AKIRA
IPC: C09D5/02
Filed: 1996-02-22
Abstract: PROBLEM TO BE SOLVED: To provide high durability and excellent transparency by applying emulsified water-repelling fine particles and resin to an article, drying, and hardening the applied emulsion. SOLUTION: This article bearing a water-repelling coating film is obtained by applying emulsified water-repelling fine particles and a resin to an article, drying and hardening the applied emulsion. In the composition of the water- repelling coating film, since the fine particles having extremely high water- repelling property exist in a hydrophilic components, as shown in the model illustration of the cross-section structure of the water-repelling coating film, the water-repelling particles in the coating film on the article are spontaneously gathered in the surface of the coating film near the air layer due to the function of surface energy and the density of the water-repelling fine particles in the coating film is low in the article side and increases slantingly toward the surface.  Moreover, the polarity of the coating film composition is heightened by emulsifying the fine particles and such a structure can be materialized easily.
Patent JP-H11229947-A (JP)
Title: Cylinder determination method and device thereof for internal combustion engine
Inventor: SUDA KOICHI
IPC: F02D45/00
Filed: 1998-02-17
Abstract: PROBLEM TO BE SOLVED: To provide a cylinder determination method and its device capable of early determining cylinder for an internal combustion engine. SOLUTION: In a cam angle detection rotor 10, a large diameter part 11 and a small diameter part 12 are arranged at an interval of 180 degrees. In a crank angle detection rotor 30, a crest part 31 and a valley part 32 or a crest part 33 and a valley part 34 are arranged at predetermined angle intervals for forming crank angle information. In the outer circumferences of the cam angle detection rotor 10 and the crank angle detection rotor 30, a cam angle sensor 30 and a crank angle sensor 40 are arranged.  A cylinder determining means determines a rotation angle of the crank shaft at predetermined angle intervals according to a crank angle information combination pattern contained in a crank angle signal outputted from the crank angle sensor 20 so as to perform cylinder determination on the basis of the determined crank shaft rotation angle and the cam information contained in a cam angle signal.
Patent JP-S57149781-A (JP)
Title: Semiconductor luminous device
Inventor: YAMAGOSHI SHIGENOBU
IPC: H01L33/46
Filed: 1981-03-11
Abstract: PURPOSE:To improve the fetching efficiency of light by a method wherein a reflective section is provided around a luminous section and constitution is made to fetch the light which is nearly in parallel with a pn junction surface by reflecting the light in the longitudinal direction. CONSTITUTION:A conical projected section is formed at the central position of the p-clad layer 2 and a p-active layer 3 of a light emitting element and a reflective film 10 consisting of an SiO2 film and a chrome film are deposited on the inside of the projected section. The reflective film 10 forms projected shape for a fetching window 8 and a projection-shaped electrode 11 is provided in ring shape around the reflective film. In this way, a luminous section L becomes ring shape and light in the longitudinal direction reaches the window 8 by transmitting an n-clad layer 4 and the light which runs to the center from the luminous section and is in parallel with a pn junction is also reflected by the reflective film 10 and the light is converted to nearly longitudinal direction to fetch from the window 8. As a result, the fetching efficiency of light is improved.
Patent JP-H0777369-A (JP)
Title: Abnormal state-sensing device for refrigerant compressor
Inventor: SAKAKIBARA HISASUKE
IPC: F25B49/02
Filed: 1994-03-04
Abstract: PURPOSE:To reduce the number of assembling and cost by a method wherein a freezer is caused to have a less pressure loss, a high reliability can be assured and the freezer is assembled to a freezing cycle without increasing the number of pipe couplers. CONSTITUTION:A stopper 17 for position setting a valve body 15 and a projection 18 for restricting a displacement of the valve body 15 at a downstream side of the stopper 17 are arranged within a refrigerant pipe 13 for communicating a refrigerant compressor with a refrigerant condensor. The valve body 15 is arranged at a downstream side of the stopper 7 and it can be displaced between an initial position where it abuts against the stopper 17 and its displacing position. This valve body 15 is biased toward the initial position side with a repelling force (a reacting force) generated between a first permanent magnet 19 fixed to the valve body 15 and displaced together with the valve body 15 and a second permanent magnet 20 fixed at an upstream side of the projection 18.
Patent JP-H04247265-A (JP)
Title: Spin coater
Inventor: YABE MANABU
IPC: B05C11/08
Filed: 1991-02-04
Abstract: PURPOSE:To accumulate a stringy material in a recess 6 even if a viscous coating soln. or a negative resist is splashed by centrifugal force and to prevent the short-cutting of the stringy material to the rear of a substrate by providing a protrusion 5 on the upper end of a flow straightening member 4. CONSTITUTION:A protrusion 5 is provided on the upper end of a flow straightening member 4. The tip of the protrusion 5 is placed within the periphery (edge) of a substrate 1. A recess 6 is inevitably formed on the inclined surface of the periphery of the member 4. When the substrate 1 such as a wafer is rotated, a viscous coating soln. or a negative resist is splashed and strung by centrifugal force, however, the stringy material is accumulated in the recess 6, and the rear of the substrate is kept clean.