baber/WOPTO huggingface dataset:
Patent JP-S54119447-A (JP)
Title: 19-norsteroid derivatine
Inventor: MORITA YOSHIMI
IPC: A61K31/575
Filed: 1978-03-10
Abstract: NEW MATERIAL:19-Nor-20-(2-tetrahydropyranyl) oxymethylpregna-1, 3, 5 (10)-triene-3-ol of formula I.  
     USE: An intermediate for the synthesis of medicines having female hormone actions and various steroid medicines.  
     PROCESS: 20-(2-Tetrahydropyranyl)oxymethylpregna 1,4-diene-3-one of formula II is brought into contact with an adduct of an alkali metal, e.g Li or Na, with a polycyclic aromatic compound, e.g. 1-methylnaphthalene, in an ethereal solvent, e.g. diethyl ether, to form an alkali metal salt of formula IV via the compound of formula III. The by-product methyl alkali metal is decomposed by a scavenger, e.g. diphenylmethane of formula V, and the compound of formula IVthus obtained is brought into contact with an acid, e.g. hydrochloric acid, to give the compound of formula I. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-H10221866-A (JP)
Title: Production of electrophotographic photoreceptor
Inventor: HIROTA NOBUAKI
IPC: G03G5/05
Filed: 1997-02-12
Abstract: PROBLEM TO BE SOLVED: To optimize the period of dip coating and to obtain a good coating film while maintaining high productivity by controlling the repeating period of dip coating of a base body in a coating tank to specified times or longer but almost near the specified times of the dip coating period. SOLUTION: The repeating period of dip coating of a base body to form a coating layer is controlled to twice or more but near twice as the time required for dip coating of the base body. By controlling the interval from the finish of dip coating to the start of the next dip coating is controlled to almost same or longer than the time required for dip coating, the condition of the coating liquid can be made const. When the repeating period is twice as the dip coating time of the base body, the interval from the finish of dip coating to the starting of the next dip coating is same as the dip coating time, which results in the highest productivity.  Each coating liquid for a base coating layer, the coating liquid for a charge producing layer or the coating liquid for charge transfer layer is prepared by mixing a resin binder, a charge producing material, a charge transfer material, etc., and a solvent in a specified mixing ratio and then supplied to the coating tank. The coating liquid is circulated between the coating tank and a reservoir tank at room temp.
Patent JP-H02207795-A (JP)
Title: Novel bacterium and production of 2-thiopheneacetic acid using the same bacterium
Inventor: SATONAKA HAJIME
IPC: C12R1/465
Filed: 1989-02-08
Abstract: PURPOSE:To efficiently produce 2-thiopheneacetic acid by using a bacterium belonging to the genus Streptomyces, capable of converting a 2-alkylthiophene into 2-thiopheneacetic acid. CONSTITUTION:An aqueous solution containing an inorganic salt such as phosphate and a nitrogen source such as urea is sterilized, blended with a 2- alkylthiophene such as 2-n-alkylthiophene and Streptomyces sp. KE-8891 bacterium (FERM P-10529) belonging to the genus streptomyces, capable of converting a 2-alkylthiophene into 2-thiopheneacetic acid, adjusted to pH6.0-8.0 and cultured aerobically by shaking culture or aerated spinner culture at 15-45 deg.C. Then the culture mixture is acidified with a mineral acid, insoluble substances are removed, the resulting substance is extracted with a solvent such as ethyl ether and the residue is recrystallized from water to give 2-thiopheneacetic acid. Consequently, 2-thiopheneacetic acid can be produced in high yield and high selectivity and further the substance having extremely high purity is obtained.
Patent JP-S62186940-A (JP)
Title: Adsorbent for lipoprotein
Inventor: FURUYOSHI SHIGEO
IPC: A61M1/36
Filed: 1986-02-10
Abstract: PURPOSE:To selectively adsorb only low-density lipoprotein and extremely low-density lipoprotein by fixing and depositing aniline and/or an aniline derivative on a water-insoluble carrier to form the titled lipoprotein adsorbent. CONSTITUTION:Aniline and/or an aniline derivative are fixed and deposited on a water-insoluble carrier by a physical method, ionic bonding, covalent binding, etc., to obtain the lipoprotein adsorbent. N-monoalkylanilines, aromatic cyclic alkyl-substituted anilines, etc., are exemplified as the aniline derivative. An inorg. carrier such as glass beads and silica gel and an org. carrier such as cross-linked polyvinyl alcohol are used as the water-insoluble carrier. The adsorbent can be obtained in the form of granules, fibers, membranes, or hollow fibers.
Patent JP-H021736-A (JP)
Title: Improve thermoplastic polyester resin and production thereof
Inventor: WADA MITSUO
IPC: C08L23/26
Filed: 1989-02-07
Abstract: PURPOSE:To obtain the subject resin useful as electrical, electronic parts, etc., and having impact characteristics, etc., by melt kneading a thermoplastic polyester with a specific modified olefinic copolymer and heat-treating the resultant mixture at a specific temperature while keeping a fixed state. CONSTITUTION:The objective resin obtained by melt kneading (A) 99-40 pts.wt. thermoplastic polyester consisting of a copolymer consisting essentially of preferably a polyalkylene terephthalate, etc., with (B) 1-60 pts.wt. modified olefinic copolymer (preferably obtained by graft polymerization of 0.01-10 pts.wt. unsaturated carboxylic acid or a derivative thereof with 100 pts.wt. olefinic polymer which is preferably a copolymer, etc., of ethylene and an alpha-olefin) and, as necessary, a filler, etc., and heat-treating the resultant molten mixture directly in a solid state within a temperature range of >=100 deg.C to <=the melting point thereof under reduced pressure of <=10Torr in an inert gas atmosphere for >=30min.
Patent JP-S52111506-A (JP)
Title: Simultaneous preparation of 1,3-butadiene and methacrolein
Inventor: YAMAMOTO AKIHISA
IPC: C07C11/167
Filed: 1976-03-15
Abstract: PURPOSE: Methacrolein and 1, 3-butadiene are prepared in high selectivity and high one-pass spce time yield by the gas-phase oxidation of a mixed butene with O 2  in the presence of a catalyst composition containing Ce or Be. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-H09330039-A (JP)
Title: Planar display device
Inventor: OAMI YUKIO
IPC: G02F1/1343
Filed: 1997-02-12
Abstract: PROBLEM TO BE SOLVED: To provide a planar display device capable of attaining a high contrast ratio, sufficiently reducing an effect of a noise from a surface light source and thus, realizing a high definition display image. SOLUTION: This planar display device 1 contains a display panel 100 of a nearly rectangular shape having a light modulation layer held between a pair of transparent electrode substrates, a light transmission plate 310 of the nearly rectangular shape and a surface light source means 300 containing a tube like light source 320 arranged along two end sides adjacent to the light transmission plate 310 and arranged on the rear of the display panel 100, and is provided with a first power source wiring electrically connected to one end of the tube like light source 320 and a second source wiring 325 electrically connected to the other end of the tube like light source 320 and wired along the tube like light source 320.
Patent JP-H11212308-A (JP)
Title: Both-side image forming device
Inventor: MASHITA YOSHIYA
IPC: G03G15/00
Filed: 1998-01-27
Abstract: PROBLEM TO BE SOLVED: To provide a both-side image forming device constituted so that productivity one recording sheet is identical to that at a one-side recording time and images can be simultaneously recorded on both surfaces of the recording material without causing position slippage between both surfaces if the respective intermediate transfer belts of a first and a second image forming parts are asymmetrically laid. SOLUTION: The both-side image forming device is constituted so that the first and the second image forming parts are respectively provided with image carries 1 and 2 and the intermediate transfer belts 2 and 4 and the images T1 and T2 formed on the belt 2 and 4 are simultaneously transferred on both surfaces of the recording material 5. Even when a secondary intermediate transfer means 8 is asymmetrically constituted and the belts 2 and 4 must be asymmetrically laid, the carrying distances of the first image T1 and the second image T2 leading to the transfer means 8 are made to be equal by adjusting the forming start timing of the respective images in consideration of the carrying distances.
Patent JP-H07240195-A (JP)
Title: Alkaline battery
Inventor: OKUBO TAKESHI
IPC: H01M2/08
Filed: 1994-02-25
Abstract: PURPOSE:To provide stable explosion preventing operation even when battery inner pressure is abnormally increased by forming an explosion preventing mechanism having a thin part in a gasket for sealing the opening of a case of an alkaline battery. CONSTITUTION:An alkaline battery is formed by sealing the opening of a case with a gasket 1 having an explosion preventing mechanism forming a thin part in the gasket 1. The corner R in the connection part between a thin part lb and a thick part 1a of the gasket 1 or chamfer C is specified to R=0.02mm or less or C=0.02mm or less. Even when battery inner pressure is abnormally increased, the alkaline battery having stable explosion preventing operation capability is provided.
Patent JP-H06244728-A (JP)
Title: Trigger synchronizing circuit for waveform generator
Inventor: IKEGAMI TAKETOSHI
IPC: H03M1/66
Filed: 1993-02-17
Abstract: PURPOSE:To evade a jitter generation due to an asynchronous error between a second sampling clock and an outside trigger by arbitrarily changing the phase of a first sampling clock which generates a digital direct synthesizer. CONSTITUTION:Before the outside trigger is inputted, the output of a delay circuit 21 is low, a flip flop 22 is not set, and the inversion output is high as it is. Then, the first sampling clock is inhibited from passing by a gate 24, and the second sampling clock is made low as it is. After the outside trigger is inputted, a time from the rising of the outside trigger to the rising of the first sampling clock appearing afterward is measured by using a time interval counter 10, and the time difference is digitized, and stored in a memory 11. Afterwards, phase shift amounts corresponding to the time difference are outputted, and stored through adders 14 and 15 and a latch 16 in a memory 11, and an output waveform is phase-shifted.
Patent JP-H01204623-A (JP)
Title: Rice cooker
Inventor: SUZUKI TOSHIAKI
IPC: A47J27/00
Filed: 1988-02-09
Abstract: PURPOSE:To confirm the water level accurately and to prevent a miscooking owing to the misconception of the water level by providing a weight detecting device to detect the weight of a main body or an inside pot, a transforming device which has stored the display data beforehand, and a display device to display the content transformed by the transforming device from the output measured by the weight detecting device. CONSTITUTION:When a user puts 3 'go' (1 go   0.18l) of rice in an inside pot 12, he sets the water level roughly. When the inside pot 12 is put in a main body 1, the weight of the pot 12 and its content is imposed on a heater 4, and the pot 12 stops where the force of springs 5 and the weight are balanced. In this case, the capacity between electrodes 6 and 7 is detected by a weight detecting device 8, and the result is input to a microcomputer 9. This input is made by reading the frequency of the pulse by the microcomputer 9, and a transforming device 10 transforms the frequency to a display data. When the output of the device 8 is frequency meaning 1,000g, for example, at that time, the display data is 2.5, and 2.5 'go' is shown in a display device 11. Consequently, the user shall add the water until 3 'go' is displayed.
Patent JP-S62185355-A (JP)
Title: Semiconductor integrated circuit
Inventor: KATOU TETSUHIRO
IPC: H01L21/822
Filed: 1986-02-10
Abstract: PURPOSE:To obtain high resistance by a small resistance element by making the width of the central section of th resistance element surrounded by an insulating region narrower than both ends. CONSTITUTION:When the quantity of the biting of a resistor 2 by an insulating region 1 is represented by (a) on one side, the quantity of the extension of a diffusion layer by (b) on one side and width on a pattern by (w), actual resis tance width is represented by w+2b/w- one over 2a. When the actual width wR, length lR and layer resistance rhoR of a resistance element RR are used, RR=rhoR (lR/wR)+RCR holds. Where RCR represents a connecting resistance compo nent. Consequently, when resistance width wR reaches one over (w+2b/w-2a), a resistance value is multiplied by (w+2b/w-2a), thus acquiring the high resis tance element. When the resistance width of the resistance element R11 is 2mum, length 14mum and the quantity of the biting of the resistor 2 by the insulating region 1 0.5mum on ne side, R11=15rho11+RC11 holds, and the high resistance of R11=320kOMEGA is obtained by the small resistance element on rho11=20kOMEGA and RC11=20kOMEGA.
Patent JP-S60173554-A (JP)
Title: Magnetic color toner
Inventor: SUZUKI AKIRA
IPC: G03G9/09
Filed: 1984-02-20
Abstract: PURPOSE:To form a magnetic color toner rich in coloration by coating each core particle made of a heat-resistant material contg. or covering the magnetic particles with a covering layer contg. a heat-sublimable dye. CONSTITUTION:The surface of each heat-resistant core particle 1 contg. magnetic particles is coated with a covering layer 2 contg. a dye heat-sublimable at 50-250 deg.C, such as malachite green or fuchsin. The heat-resistant core particles 1 are obtained by mixing the magnetic particles with a monomer, adding a crosslinking agent, and polymerizing it by the suspension polymn. or emulsion polymn. method. As a result, since the sharp color of the heat-sublimable dye can be developed without being affected by the tone of the magnetic particles in a one-component type toner, a color image rich in coloration can be obtained.
Patent JP-S63195691-A (JP)
Inventor: YOSHII JIRO
IPC: G09G5/24
Filed: 1987-02-10
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-H08201448-A (JP)
Title: Period measuring/determining apparatus
Inventor: ITO MASAAKI
IPC: G11B20/18
Filed: 1995-01-25
Abstract: PURPOSE: To enhance the reliability of the apparatus by detecting the difference of period between adjacent measurement read clocks and comparing the difference of period with a predetermined threshold value thereby detecting erroneous read-out of a recorder/player. CONSTITUTION: An n-bit counter 4 receives a basic clock of predetermined frequency being generated 3 and counts the basic clock. A measurement read clock period pulse is cleared by a delayed 8 signal and fed to a latch means 5. Output from the means 5 is latched by a latch means 6. The means 5, 6 are fed with a clock, i.e., the measurement read clock period pulse, and the means 5 latches a new period data A whereas the means 6 latches a previous period data B. A processing means 7 determines a data (A-B) and operates the difference ΔT between the new period of the measurement read clock period pulse and the previous period. A CPU decision means 2 compares the difference ΔT with a predetermined threshold value to decide whether a read error is present or not.
Patent JP-H02207344-A (JP)
Title: Software development supporting device
Inventor: SUDA HIDEKAZU
IPC: G06F11/22
Filed: 1989-02-08
Abstract: PURPOSE:To respond to a microcomputer of new machine specification only by changing a parameter file by setting peripheral circuit information by the parameter file in a host computer. CONSTITUTION:The development of software is performed by connecting a target system 6 to the evaluation board 3 of the microcomputer consisting of a core CPU and a peripheral circuit. The peripheral circuit information such as ROM size, RAM size, etc., is written on and read in the parameter file in the host computer 1. Therefore, it is possible to realize a software development supporting device of machine specification corresponding to the evaluation board 3 without changing an in-circuit emulator control program 5 or an in-circuit emulator 2. In such a way, it is possible to respond to the microcomputer of new machine specification only by changing the parameter file without changing the hardware part of a software developing tool or a control program part.
Patent JP-S60174145-A (JP)
Inventor: MURAKAMI TADAYOSHI
IPC: A61F5/02
Filed: 1984-02-18
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-H08218456-A (JP)
Title: Pipe inspection port
Inventor: DOI HIROKO
IPC: H01F7/02
Filed: 1995-02-17
Abstract: PURPOSE: To facilitate the inspection work by forming a pipe inspection port with an opening section for the inspection port and a cover covering the opening section, and fitting or removing the cover to or from the opening section via a magnet action. CONSTITUTION: An inspection port 1a is provided in the middle of the back plate 11 of a sink cabinet, a nearly square opening section 11a is provided on the inspection port 1a, and a cover 12 is provided on the opening section 11a. Magnetized thin metal plates 11b are stuck at four corners of the opening section 11a, and magnetic materials 12a are stuck at the positions corresponding to the metal plates 11b on four corners of the cover 12. The cover 12 can be fitted or removed to or from the opening section 11a in one step via a magnet action even in a narrow place, and the inspection work can be facilitated.
Patent JP-S63197576-A (JP)
Title: Method for painting acrylic resin molding
Inventor: YOSHIDA MINE
IPC: B05D3/02
Filed: 1987-02-10
Abstract: PURPOSE:To obtain a painted molding having good appearance by preventing the craze caused by internal strain, by applying solvent treatment and light irradiation to at least a part of the surface of an acrylic resin molding and subsequently applying solvent dilution type paint to the treated surface. CONSTITUTION:An acrylic resin molding based on methyl methacrylate is treated with a solvent such as ethyl acetate or isopropyl alcohol and irradiated with ultraviolet rays, infrared rays or far infrared rays having a wavelength of 0.2-1,000mum. In this case, as treatment order, solvent treatment may be performed after light irradiation and, as a result, internal strain is reduced and solvent resistance is enhanced. Subsequently, when solvent dilution type thermosetting silicone paint and ultraviolet curable acrylic paint are applied to the treated molding and cured, the acrylic resin molded product generating no solvent craze and having good appearance can be obtained.
Patent JP-H07241073-A (JP)
Title: Switching power supply
Inventor: TAKAHASHI SEIICHI
IPC: H02M3/28
Filed: 1994-02-28
Abstract: PURPOSE:To enhance the circuit efficiency by precharging a capacitor with a voltage induced in an auxiliary winding of a transformer and operating a switching control circuit with an output voltage from the capacitor when the output voltage from the auxiliary winding drops thereby reducing loss of a starting resistor. CONSTITUTION:When a voltage detector 301 detects output voltage drop of an auxiliary rectifying circuit 120 due to decrease of the duty ratio of ON/OFF control signal for a switching element 14 delivered from a PWM control section 20, a switch control circuit 302 opens a switch K2 and closes a switch K3. Consequently, the output voltage from a charging capacitor C1 is fed through the switch K3 to the power supply terminal Vcc at the control section 20. Since the control section 20 can sustain the operation with an operating voltage fed from the charging capacitor C1 even if the output voltage from the auxiliary rectifying circuit 120 drops somewhat, significant loss is not generated in the starting circuit 8.
Patent JP-S58146543-A (JP)
Title: Preparation of phthalonitrile derivative
Inventor: NIWA TOSHIO
IPC: C07C255/51
Filed: 1982-02-25
Abstract: NEW MATERIAL:The compound of formulaI[X and Y are 1-9C alkyl, 1-9C alkoxy or group of formula II (R1 is H, OH, halogen, nitro, etc.), provided that at least one of X and Y is not methyl]. EXAMPLE:3,6-Bis-(p-n-butoxyphenyl)-phthalonitrile. USE:Raw material of pharmaceuticals, agricultural chemicals, and liquid crystals. PROCESS:A butadiene derivative of formula III is made to react with fumaronitrile or dicyanoacetylene to obtain the 1,2,3,6-tetrahydrophthalonitrile of formula IV or the 3,6-dihydrophthalonitrile derivative of formula V, respectively. The compound of formulaIcan be prepared either by oxidizing the compound of formula IV or formula V with sulfur, or by brominating the compounds in a solvent such as acetic acid and dehydrobrominating the product, or by oxidizing the compounds with a quinone (e.g. tetrachloro-p-benzoquinone) in a solvent.
Patent JP-S53115256-A (JP)
Title: Counter circuit
Inventor: TOMONAGA MINORU
IPC: G08C19/16
Filed: 1977-03-17
Abstract: PURPOSE: To make possible normal measuring immediate agter resetting of service interruption, eliminate moving parts and enhance reliability by holding the output state of the pulses alternately formed at two terminals in response to the measuring instrument even at the service interruption and storing this in a non-volatile element circuit. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-S59156914-A (JP)
Title: Manufacture of active calcium powder
Inventor: TAKASHIMA KIYOTAROU
IPC: C01F11/02
Filed: 1983-02-24
Abstract: PURPOSE:To manufacture active calcium powder which is readily soluble in water an is easily absorbed from the intestinal tract by a relatively simple method by finely grinding calcined oyster shells, adding water to the resulting powder, and reacting them. CONSTITUTION:Shells of various kinds of oysters are heated at 1,500-20,000 deg.C in air for 1-3hr, cooled, and ground to about 100mesh grain size. An adequate amount of water is added to the resulting powder, and they are kneaded. The kneaded material is put in a container and held at about 20-30 deg.C to cause a chemical reaction. By the reaction, white ionized calcium powder of about 200- 350 mesh grain size is obtd.
Patent JP-H09205060-A (JP)
Title: Illumination optical system for semiconductor production system
Inventor: GOTO AKIHIRO
IPC: H01L21/027
Filed: 1996-01-23
Abstract: PROBLEM TO BE SOLVED: To provide an illumination optical system for a semiconductor production system in which uniformity of illuminance can be ensured regardless of fluctuation in the intensity of light source while suppressing interference noise. SOLUTION: A single beam projected from a laser light source is converted through a first one-dimensional multibeam generation optical system 3 into a group of N parallel beams in the row direction. Each beam in the group is then converted, through a second one-dimensional multibeam generation optical system 4 into a group of M parallel beams in the column direction thus generating a group of two-dimensional beams of N×M, as a whole. In a two-dimensional multibeam generation optical system 2, difference of optical path length between two arbitrary beams selected from the group of N×M beams is set longer than the coherence length dependent on the time coherence of laser light source 1.