baber/WOPTO huggingface dataset:
Patent JP-S63222462-A (JP)
Title: Semiconductor device and manufacture thereof
Inventor: SUZUKI MASAHISA
IPC: H01L29/778
Filed: 1987-03-12
Abstract: PURPOSE:To obtain an excellent Schottky barrier, by inserting first-third etching stopping layers between desired semiconductor layers, and appropriately utilizing the etching stopping layers when the semiconductor layers are etched. CONSTITUTION:From on top of a semi-insulating GaAs substrate 1, the following layers are sequentially grown: a non-doped GaAs layer 2; an N-type AlGaAs layer 3A; an N-type GaAs layer 3B; an N-type AlGaAs layer 3C; an N-type GaAs layer 4; an N-type AlGaAs layer 5; an N-type GaAs layer 6; an N-type AlGaAs layer 7; and an N-type GaAs layer 8. Then the layers 7 and 8 at regions where an enhancement type transistor part is to be formed are partially removed. The layers 3C and 4 are etched to form a recess for forming a gate electrode reaching the layer 3B. In a depletion type transistor part, the layers 5 and 6 are etched to form recesses for forming a gate electrode reaching the layer 4 at the same time. Thus the gate electrode 15 and 16 are simultaneously formed.
Patent JP-H03256352-A (JP)
Title: Semiconductor device
Inventor: SAITO TAKEHIRO
IPC: H01L23/50
Filed: 1990-03-06
Abstract: PURPOSE:To eliminate a useless region which projects from a semiconductor element by firmly bonding the back side of an inside lead of a lead frame with the surface of the semiconductor element directly by way of a bonding agent without providing an installation section where the semiconductor element of the lead frame is to be mounted. CONSTITUTION:The surface of a semiconductor element 1a is coated with a polymide film whose thickness ranges from 2 to 50mum except for the surface of a bonding pad. A lead frame 2a and the semiconductor element 1a are heated at a temperature ranging from 100 to 150 deg.C while the surface of the semiconductor element is fixed with the back side of the lead frame 2a. Then, the bonding pad 8 for the semiconductor element 1a and an inside lead 4a are connected with a metal fine line 7a, and then sealed with resin, thereby forming a resin body 9a. Then, an outside lead 10a is soldered and processed into specified shape, thereby completing the manufacturing process of products.
Patent JP-H08253626-A (JP)
Title: Composition mainly composed of cellulose acetate
Inventor: MORINAGA TAKESHI
IPC: B01D71/74
Filed: 1995-03-15
Abstract: PURPOSE: To obtain the subject composition suppressed in decomposition of cellulose acetate by a microorganism, stably usable for a long period of time, decomposed in the nature after the use and useful for fibers, etc., by containing chitosan. CONSTITUTION: This composition is composed of (A) preferably 2.5-50wt.% chitosan and (B) 100wt.% cellulose acetate, wherein the component A is uniformly blended with the component B or the surface of the component B is coated with the component A. For instance, the component A preferably having >=about 50% deacetylated degree and the component B preferably having water- insoluble property and about 1.0-3.0 acetylation degree are respectively used.
Patent JP-H07264667-A (JP)
Title: Cordless telephone device
Inventor: UCHIDA HIROYUKI
IPC: H04W88/02
Filed: 1994-03-25
Abstract: PURPOSE:To enable a noise-free telephone call of high quality by properly tuning a reception frequency to a transmission frequency from a master equipment or slave equipment in the case where the deviation of transmission frequency easily takes place and to improve the reliability by surely connecting a radio circuit between the master equipment and slave equipment. CONSTITUTION:The slave equipment 30 detects the level of the demodulated signal from a receiving circuit 35 from the demodulated signal and controls a transmission frequency correcting circuit 45 on the basis of the demodulated signal level so that the level of the demodulated signal becomes maximum. Under this control, a correction signal Cm correcting the frequency of the reference clock signal Ck (local oscillation signal) for frequency conversion from a variable reference oscillation circuit 28 is sent out of a transmission frequency correcting circuit 45 so that the reception frequency of a receiving circuit 35 matches the transmission frequency from the master equipment 22. Under this closed loop control, the reception frequency is varied following up the transmission frequency from the master equipment 22 if the transmission frequency fluctuates.
Patent JP-S55149253-A (JP)
Title: Maleimido and its preparation
Inventor: OOBA MASAYUKI
IPC: C08G73/00
Filed: 1979-05-09
Abstract: NEW MATERIAL:A maleimido shown by the formula I (R and R' are H, halogen, or 1W4C alkyl; n and n' are 1W4).  
     EXAMPLE: 2-( 4'-Hydroxyphenyl )-2-( 4"-maleimido-phenyl ) propane shown by the formula II.  
     USE: Electrical insulating materials, heat-resistant adhesives, vulcanization accelerators coating compound, and especially raw materials for a resin required to have special functions utilizing OH groups and double bonds. Having an extremely large solubility in a low-boiling solvent, e.g., acetone, methylethyl ketone, etc. and good compatibility with a resin.  
     PROCESS: A maleamic acid shown by the formula III is reacted with  a dehydrating agent, e.g., phosphorus pentoxide, polyphosphoric acid, a carboxylic acid anhydride to give a compound shown by the formula I by the dehydration through cyclization. The reaction is carried out in an organic solvent or in the presence of a catalyst and a tertiary a mine. After the reaction is over, good granules of the aimed compd. are precipitated by using a solvent, e.g., water. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-S63221664-A (JP)
Title: Manufacture of semiconductor memory device
Inventor: NISHIMOTO SHOZO
IPC: H01L27/10
Filed: 1987-03-10
Abstract: PURPOSE:To eliminate the uniform diffusion of a groove surface by employing a thermal diffusion method from a specific arsenic silica coating film or an antimony silica coating film to implant an N-type impurity to the surface of the groove as a main charge storage unit formed on a P-type semiconductor substrate surface. CONSTITUTION:A coating film is so adjusted that 5-valence butoxy arsenide or 5-valence butoxy antimony, and silanol having mean 1-3 of ethoxy groups are dissolved in ethanol to be 2wt.% of more of SiO2 concentration, 20g/100cc or more of impurity concentration, and the ratio of butanol to ethanol in solvent is larger than 1:99. Then, thermal diffusion from the coating film of such arsenic silica or antimony silica is employed. When a groove 8 is dug deeply to a substrate, the groove is formed by spin coating the arsenic silica film 9 shallower than a p-well 3 and heat treating it in nitrogen and oxygen mixture atmosphere to form an arsenic diffused layer 10. The silica film is removed with mixture solution of fluoric acid and ammonium fluoride to form a capacity insulating film 11 and a cell plate 12. After an insulating oxide film 13 and an oxide film 14 are covered, a word line 15 and a gate 16 are formed by covering, with them as masks arsenic is ion implanted to form an SO diffused layer 17.
Patent JP-S62213311-A (JP)
Title: Amplifier
Inventor: TAKANO EISUKE
IPC: H03F17/00
Filed: 1986-03-13
Abstract: PURPOSE:To obtain an optional input/output characteristic by using a liquid crystal display element acting like an optical shutter so as to isolate an input side and output side completely electrically thereby applying the stable signal conversion. CONSTITUTION:A control data to drive an electrode at an optional voltage to an input signal level is stored in a memory of a microprocessor PC 50 so as to obtain a desired input/output characteristic. A unit 40 reads a control data in response to the input signal from the memory and gives it to a driver circuit 60. The circuit 60 drives an X electrode XPi and a Y electrode YPj designated by a control data at a prescribed voltage to control the optical property of a liquid crystal at the cross point of the X and Y electrodes. Thus, the transmittivity of light of a liquid crystal display element 30 as an optical shutter is changed and the photodetecting quantity and the output of a photoelectric element 20 are related to each other. Thus, a prescribed input/output characteristic is given to the output of the photoelectric element 20 with respect to the input signal level.
Patent JP-H05256863-A (JP)
Title: Bubble generation device
IPC: G01P13/00
Filed: 1992-03-16
Abstract: PURPOSE:To improve flotation property of a bubble and to observe a flow site accurately by feeding a gas which is lighter than air into a membrane liquid in a bubble generator. CONSTITUTION:A membrane liquid 1 is stored in a bubble membrane generation part 3, a pump 7 is driven, and a gas which is lighter than air, for example, helium, is fed into the membrane liquid 1 from a lower part continuously. Bubbles 2 are formed successively and nearly a same amount of helium is preserved between adjacent bubble membranes 2. The bubbles 2 move in a tube 10 for transportation and an inner capillary 11 and reaches an opening 15. The bubble membranes 2 are pushed by the helium which is preserved between the bubble membrane 2 and a bubble membrane which travels from a rear part for inflating roundly and are adhered to the opening 15, thus generating a bubble 17 which contains helium. When an air pump 12 is driven and air is discharged to the bubble 17, the bubble 17 leaves the opening 15 of the inner capillary 11 and is discharged into the air and floats in the air, thus improving flotation property of the bubble and enabling air flow field to be observed accurately.
Patent JP-H06276769-A (JP)
Title: Vibrating-wave linear motor and printer
Inventor: SEKI HIROYUKI
IPC: H02N2/00
Filed: 1993-03-16
Abstract: PURPOSE:To remove the instability fluctuation of the pushing force of a vibrator and the instability of the contact state of a sliding part and to reduce the resistance of a constraining part caused by the pressure reaction of the vibrator without the effects of the deformation, warping and the like of a bottom plate in a vibration-wave linear motor. CONSTITUTION:The cross section of a rail-shaped stator 8, with which a vibrating elastic body 1 of a vibrator presses in contact, is made to be G shape. The elastic body 1 is brought into contact with one flange part 8A. Roller bearings 14a and 14b which are attached to a mounting stage 4, are brought into contact with another flange part. The pressure reaction of the vibrating elastic body is all received with the roller bearings 14a and 14b. A sliding bearing 12, which is coupled with a shaft 11 has an oblong shape. A bearing 12b has the round hole shape.
Patent JP-S62214166-A (JP)
Title: Cutting tool made of surface coated hard alloy
Inventor: YOSHIMURA HIRONORI
IPC: B23B27/14
Filed: 1986-03-13
Abstract: PURPOSE:To obtain a cutting tool made of a surface coated hard alloy which provides wear resistance for a long period of time by alternately laminating and forming metallic layers of Hf, etc., having a specific thickness and hard layers of HfC, Al2O3, etc., having a specific thickness in a suitable number of layers to a suitable thickness on the surface of a hard alloy base body. CONSTITUTION:The metallic layer as a lower layer of Hf or Hf alloy having 0.1-1mum average layer thickness is formed on the surface of the hard alloy base body constituted of a WC sintered hard alloy, TiC cermet, high speed steel, etc. The hard layer as an upper layer consisting of carbide, nitride, carbonitride, carbonate, and carbonitroxide of Hf, Al2O3, etc., and having 0.2-4mum average layer thickness is formed on the lower layer. The coating layers having >=4 layers of alternate laminate structure consisting of the above- mentioned metallic layers and hard layers are further formed to 0.6-15mum average layer thickness. The cutting tool made of the surface coated hard alloy which has coating layers having high adhesive strength to the base body and toughness and has excellent wear resistance is thus obtd.
Patent JP-H01232152-A (JP)
Title: Fiber reinforced aluminum alloy made piston internal combustion engine
Inventor: HAMASHIMA KANEO
IPC: C22C49/08
Filed: 1988-03-09
Abstract: PURPOSE:To improve high temperature wear resistance and agglutination resistance by finely dispersing in a matrix of Al alloy an intermetallic compound of Al and a predetermined metal in a part partitioning the bottom surface of a top ring groove of fiber reinforced aluminum material. CONSTITUTION:A top ring groove 30 partitions its bottom surface by a compound material 32 with an aluminum alloy as the matrix and short fiber or whisker serving as the reinforcing member. An intermetallic compound with at least one kind of metal element, selected from a group of Al and Fe, Ni, Co, Cr, Cu, Ma, Mo, V, W, Ta, Nb, Ti, Zn, is fine dispersed in the matrix of the compound material 32. The reinforcing member in the compound material 32 sets its volume percentage of 3% or more, and the intermetallic compound sets its volume percentage of 10 to 50%, obtaining the total volume percentage of 60% or less by the reinforcing member and the intermetallic compound. In this way, wear resistance and agglutination resistance are improved in the time of high temperature.
Patent JP-H07264335-A (JP)
Title: Image forming device control system and data writing and reading method
Inventor: YAMAZAKI TAKAHIRO
IPC: G03G21/00
Filed: 1994-03-25
Abstract: PURPOSE:To perform a processing for an image forming device in operation as much as possible by a controller. CONSTITUTION:When an image forming device receives writing data from a controller during an image forming operation, a writing impossible signal is transmitted to the controller by a writing impossible transmission means A if the data is the data on its own image forming operation and the writing processing of the data is performed if the data is the one other than the data on the operation. When the image forming device receives the writing data during a standby, the writing impossible signal is transmitted A to the controller if the mode is a mode (SP mode, UP mode) in which the parameter setting, etc., can be performed by a serviceman or a user, etc., and the writing processing of the writing data is performed as it is or after the start of the image forming operation is inhibited by an inhibition means E if the mode is not such a mode. When the controller receives the writing impossible signal from the image forming device, the controller transmits a reading start signal for the signal and the only reading processing of the data is performed by a data reading means B.
Patent JP-S61217173-A (JP)
Inventor: IMAMURA SATORU
IPC: A61N1/00
Filed: 1985-03-22
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-H06266363-A (JP)
Title: Musical sound synthesizing device
Inventor: KITAYAMA TORU
IPC: G10H7/08
Filed: 1993-03-16
Abstract: PURPOSE:To provide the musical sound synthesizing device which can synthesize a rich musical sound that not only merely give a pitch feeling, but also has complexity. CONSTITUTION:While musical sound generation is indicated, an exciting signal generating circuit 1 continuously generates and outputs an exciting signal which contains much noise components and gives, specially, no pitch feeling. Loop circuits 2 and 3 which are connected in series grant comb-shaped frequency characteristics corresponding to respective pitch frequencies of a musical sound and its harmonics to the exciting signal. An adder 4 adds the exciting signal and the output signals of the loop circuits 2 and 3 at a ratio. Consequently, the adder 4 outputs the musical sound signal which gives a pitch feeling and has complexity and richness.
Patent JP-S63222488-A (JP)
Title: Manufacture of semiconductor laser
Inventor: SHAKUDA YUKIO
IPC: H01S5/00
Filed: 1987-03-11
Abstract: PURPOSE:To reduce a gap between a current blocking region and an active layer, by forming the current blocking region by ion implantation of impurities or the like at an intermediate stage before forming an upper clad layer and a cap layer having fixed thicknesses. CONSTITUTION:An n-type AlGaAs lower part clad layer 2, an AlGaAs active layer 3, an upper first clad layer 4 of a p-type AlGaAs and a GaAs protective layer 5 are by turns epitaxially grown on an n-type GaAs substrate 1. Next, a stripe part 4a is formed in the depth not reaching the lower clad layer 2 from the surface by ion implantation or diffusion. In this way, an n-type current blocking region 4b and a stripe part 4a are formed on the upper first clad layer 4. In this constitution, thickness of the stripe part 4a can be formed with high dimension accuracy so as to reduce a gap (t) between the active layer 3 and the current blocking layer 4b.
Patent JP-S58173410-A (JP)
Title: Detector for crown or the like
Inventor: ISHIDA TAKESHI
IPC: B65B57/02
Filed: 1982-04-05
Abstract: PURPOSE:To detect the abnormal crown, etc. contained in the crowns, etc. conveyed continuously in one row automatically and exactly by detecting the surface pattern of the crown, etc. optically and comparing and collating the same with the stored standard pattern. CONSTITUTION:The detection signal of the pattern of the crown, etc. detected optically with a pattern detection part 5 is written into a pattern memory 16 according to the address information from a main control part 14 after A/D conversion. Upon complection of the writing, the memory 16 is accessed by the address in the stage of detecting a diameter with a diameter detection circuit 17 stored temporarily in the part 14 and the max. diameter of the detected pattern read out from the memory 16 is written in a pattern memory 18. The diameter is collated and compared with the diameters from the plural directions stored in a dictionary 19 by a comparator 20 and the decision signal of the normal and abnormal crown is outputted from a decision circuit 21. The abnormal crown, etc. contained in the crowns, etc. conveyed continuously in one row are detected automatically and exactly by the above-mentioned constitution.
Patent JP-H06248335-A (JP)
Title: Production of steel for machine structural use, excellent in cold workability and machinability
Inventor: YANASE MASAHITO
IPC: C21D8/00
Filed: 1993-02-23
Abstract: PURPOSE:To improve cold plastic deformability and to obtain the steel by specifying the contents of S and Pb, which deteriorate cold forgeability, and the rolling conditions at the time of bar steel rolling, respectively. CONSTITUTION:This steel is obtained by subjecting a steel, which has a composition consisting of, by weight, 0.10-0.60% C, 0.15-0.50% Si, 0.25-1.70% Mn, 0.015-0.050% Al, <=0.010% S, 0.10-0.20% Pb, and the balance Fe and containing, if necessary, <=1.5% Cr and <=1.0% Mo, to heating up to 900-1100 deg.C and to rolling at 750-850 deg.C finishing temp. By reducing S content and properly regulating rolling conditions, cold forgeability can be improved. Further, deterioration in machinability, due to the reduction of S content, can be improved by adding Pb by the amount in the range where cold forgeability is not deteriorated.
Patent JP-S62214151-A (JP)
Title: Aluminum alloy having superior strength at high temperature
Inventor: ASANO KAZUHIKO
IPC: C22C21/12
Filed: 1986-03-14
Abstract: PURPOSE:To improve the strength of an Al-Cu-Mg-Zr alloy at high temp. by adding a small amount of Mn or V to the alloy. CONSTITUTION:The composition of an Al alloy is composed of 4.0-7.0% C, 0.3-1.0% Mg, 0.05-0.2% Zr, 0.2-0.7% Mn and/or 0.05-0.2% V and the balance Al with inevitable impurities. The alloy has superior strength, e.g., tensile strength in the wide temp. range of room temp. - about 250 deg.C.
Patent JP-S55147787-A (JP)
Title: Information output unit
Inventor: MIURA HIROAKI
IPC: G06K15/10
Filed: 1979-05-08
Abstract: PURPOSE: To enable to use the optical fiber tube etc., by storing the sentence information received in row and converting and outputting it into the information of column in recording or displaying.  
     CONSTITUTION: The input information input to the control system of the memory unit using laser beam is received at the interface 101, and the information input every row is stored in the page memory unit 104 via the first control section 102. Further, when the sentence information for one page's share is stored in the unit 104, the control 102 changes over the data selector 103, to couple the second control section 105 and the unit 104 and the print start is instructed to the control section 105. With this print start instruction, the photosensitive drum is turned and electric charge is given on the photosensitive surface. In parallel with this, the control 105 couples the data selector 106 and the row memory units 107, 107' and the units 107, 107' with the data selector 108, and it is fed to the character generator 109 with row converting operation to output the information converted in column. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-S61214045-A (JP)
Title: Access method for memory and i/o device
Inventor: HANEDA ISAMU
IPC: G06F13/10
Filed: 1985-03-20
Abstract: PURPOSE:To attain easily the interchangeability between old and new types of devices by producing an interruption through a central arithmetic unit and giving an access to another memory area corresponding to the instruction produced the interruption or an I/O device for execution of the instruction. CONSTITUTION:A CPU 1 runs the program which is so far run on the old type of device by the new type of device and gives an access to a display memory since the space of the display memory is set on a memory space in the old type of device. Thus a selection signal 14 for display memory is delivered at a low level from a decoder 8. The signal 14 is supplied to the non-maskable interruption request input NMI of a CPU 1 and also supplied in the form of the clock of an FF 12. The output of an FF 10 is latched by the FF 12 when the signal 14 is changed to a high level from a low level. In such a way, the CPU 1 gives an access to the display memory of the old type of device. Then the address information A0-A7 received said memory access is latched by the FF 12. The FF 12 reads the information in an interruption processing routine to decode and execute it.
Patent JP-H09240000-A (JP)
Title: Method for preventing clogging of atmosphere communication port
Inventor: AKAO YUJI
IPC: B41J2/18
Filed: 1996-03-14
Abstract: PROBLEM TO BE SOLVED: To prevent the clogging of the atmosphere communication port in a maintenance cap. SOLUTION: A maintenance cap 1 is hermatically closed during printing by using a drying preventing cap 12 to prevent drying and, when the maintenance cap is hermetically closed, an atmosphere communication port 3 is opened to perform sucking operation to remove the ink in the atmosphere communication port to enhance port clogging preventing effect. Further, an atmosphere communication valve having passage changeover function is provided between the atmosphere communication port and an atmosphere port and sucking operation is performed in such a state that the drying preventing cap is mounted to allow a liquid for cleaning the cap to flow in the maintenance cap to prevent port clogging.
Patent JP-H07241246-A (JP)
Title: Heat insulating box for catering
Inventor: KATSU TAKESHI
IPC: A47J39/02
Filed: 1994-03-02
Abstract: PURPOSE:To provide a heat insulating box for catering with easy transportabili ty and capable of preventing a hot dish from cooling while it is delivered and inexpensively performing heat insulation during delivery. CONSTITUTION:This heat insulating box for catering is constituted of a heat insulating box main body 1 made of heat insulating material, in which a container with cover to house food can be housed in piles in at least two stages, an opening/closing cover 5 made of heat insulating material capable of opening/ closing the opening part of the heat insulating box main body 1, and a heat insulating sheet 9 provided with a heating element capable of performing the heat insulation of a container 2 with cover interposed between the container 2 with cover at an upper stage and that 2 with cover at a lower stage at least one of which is housed in the heat insulating box main body 1.