baber/WOPTO huggingface dataset:
Patent JP-H03269826-A (JP)
Title: Phase change optical disk device
Inventor: KOBAYASHI TADASHI
IPC: G11B7/26
Filed: 1990-03-19
Abstract: PURPOSE:To prohibit the reloading or overwrite of information on a phase change optical disk when the reflectance of reproducing light is remarkably changed from an initial state by monitoring the reflectance when deterioration occurs in protective film or recording film. CONSTITUTION:The reflectance of the reproducing light from the phase change optical disk 11 is detected by a reflectance detection circuit 21. The reflectance is sent to a prohibition circuit 22, and the level of a reproducing waveform detected by the circuit 21 is compared with the fluctuation range of the reflectance in the initial state at the circuit. When the level of the reproducing waveform is outside the fluctuation range of the reflectance in the initial state in at least one or more areas, write prohibiting information is written on the flag recording part of a sector by a semiconductor laser 13. Also, the fact that the reloading or the overwrite of the information on the optical disk 11 due to the deterioration of the phase change optical disk 11 is prohibited is displayed on a display circuit 24.
Patent JP-S55158210-A (JP)
Title: Production of extra low carbon steel
Inventor: ANEZAKI MASAHARU
IPC: C21C5/34
Filed: 1979-05-30
Abstract: PURPOSE:To readily decarbonize molten steel down to an extra low carbon region with less gas consumption by controlling the flow of inert gas by the specific system at the time of decarbonizing and refining the molten steel by blowing inert gas from furnace bottom nozzles in combination with oxygen top blowing or independently. CONSTITUTION:After the molten steel is decarbonized and refined down to a C content of about 0.05% by oxygen top blowing refining, the CO partial pressure in the steel bath is lowered and further it is decarbonized and refined without considerably oxidizing Fe. In this case, it is decarbonized down to an extra low carbon region of C<0.01% by blowing inert gas such as Ar from the nozzles provided in the bottom of the converter. The inert gas is blown by controlling its amount by the quantity Q calculated by formula (1) from the carbon concentration (i) of the steel bath at the start of bottom blowing of inert gas and the bottom blowing lapse time (t). This methdo decrease the consumption of costly Ar gas and enables the inexpensive production of the extra low carbon steel.
Patent JP-H07282723-A (JP)
Title: Manufacture of fluorescent lamp for plant culture
Inventor: SHIBATA HARUO
IPC: H01J9/22
Filed: 1994-04-05
Abstract: PURPOSE:To form a fluorescent lamp for plant culture in which fluorescent suspension having stable performance is used in preparing fluorescent suspension including iron activating lithium aluminate fluorescent body. CONSTITUTION:A fluorescent film is formed on the inside face of a glass tube by using fluorescent suspension formed by mixing ethyl cellulose and butyl acetate in a fluorescent body of 9ph value or more, which is composed of at least three kinds of rare metal fluorescent bodies having light emitting peak wavelength of 400-500nm, 520-550nm, and 600-630nm, and an iron activating lithium aluminate fluorescent body.
Patent JP-H06281447-A (JP)
Title: Amplitude detecting method
Inventor: HONMA AKIHIKO
IPC: H01J37/28
Filed: 1993-03-25
Abstract: PURPOSE:To realize the high bandwidth, the stabilization at high speed, and the improvement of the resolution of a measurement control system of a scanning probe microscope where the probe is excited, the signal, dependent on the exciting frequency is detected by a detecting part, and the change in the amplitude of the detected signal is used as the input signal of the probe control system. CONSTITUTION:The change in the amplitude of the differential signal S2 is calculated by executing the frequency multiplication of the detected signal, i.e., the differential signal S2, binarizing the squared signal SS which is frequency-multiplicated, and sampling the absolute value signal SA which is the absolute signal of the original differential signal S2 by the binarized sample signal SP.
Patent JP-S57182168-A (JP)
Title: Immunochemical reagent
Inventor: TSUTSUI TOSHIAKI
IPC: A61K39/00
Filed: 1981-05-02
Abstract: PURPOSE: To obtain a corpuscular reagent primed for immunsreaction, which has excellent reproducibility and precision, by a method wherein corpuscular carriers primed with antigens or antibodies are made suspended in a water medium whose electroconductivity is 5.0mΩ -1 /cm or less.  
     CONSTITUTION: Insoluble corpuscles are used as corpuscular carriers in a water medium, such as polystyrene, styrene-butadiene copolymer, silica and metal powder, whose grain size is 0.2W0.8μm, and are made to carry protein, polypeptide, steroid or the like as antigens. Sensitization of the antigens or antibodies to the carrier is perfomed by a well-known method, while the corpuscular carriers thus sensitized may be treated with a stabilizer such as amino acid which is insensitive to reaction, before they are made suspended in the water medium. The electrocondctivity of the water medium wherein the sensitized carriers are suspended is preferably 1.0mΩ -1 /cm or less. When the conductivity is too high, the medium turns unstable and the precision of measurement decreases. pH of the water medium is preferably 6.5W8.5, and when pH is too low, the medium turns unstable, though its sensitivity is increased. When pH is too high, the sensitivity lowers and the medium turns unstable in terms of preservation. 
     COPYRIGHT: (C)1982,JPO&Japio
Patent JP-2000270579-A (JP)
Title: Current controller
Inventor: ITO AKIHIRO
IPC: H02P21/14
Filed: 1999-03-12
Abstract: PROBLEM TO BE SOLVED: To extend a total current band and realize the improvement of response characteristics, such as the widening of a current loop band, etc., by improvement in compensation effect. SOLUTION: A transmission function from a voltage command signal u(k) to current output y(k) of a motor is approximated to be Kpwm/(Ls+R) which is subjected to discrete value transformation. When a control object N(z) is defined by N(z)=b/(z+a) (wherein z denotes a leading operator). Assuming that external disturbance(d) including an approximation error component is applied to the system, the voltage command signal u(k) is subjected to nominalization-compensation by obtaining a new voltage command u(k)=u(k)-d(k) wherein d(k) denotes a value estimated by an external disturbance observer comprising a suitable IIR filter Q(z) and is defined as d(k)=Q(z)N(z)-1y(k)-Q(z)u(k). Feedback compensation is applied to the system to obtain Gb/(z+a+Gb).  A feed forward compensator expressed as (z+a+Gb)/(Gbz) is inserted into a current command unit to have the current response characteristics of a whole current control unit z-1.
Patent JP-S51143803-A (JP)
Title: Coil insertion apparatus for motors
Inventor: OSHIRODA YASUAKI
IPC: H02K15/06
Filed: 1975-06-06
Abstract: PURPOSE: To house a coil within a slot in a stabilized manner by way of a pushing force of an insertion apparatus and of an electromagnetic force effected to the coil by supplying appropriate current to the coil at the time of insertion. 
     COPYRIGHT: (C)1976,JPO&Japio
Patent JP-S542969-A (JP)
Title: Method and apparatus for controlling butt angle of edge of both pipe materials
Inventor: TSUKAMURA TAKAO
IPC: B21C37/08
Filed: 1977-06-10
Abstract: PURPOSE: To always control the apex angle to the optimum value on purpose to obtain the high quality of the weld zone, by controlling the fin roll or the fin roll stand depending on the signal from the detector for detecting the position of edge of both pipe materials. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-S51143001-A (JP)
Title: A method for manufacturing briquette
Inventor: MASUDA YASUTSUGU
IPC: C10L5/10
Filed: 1975-06-04
Abstract: PURPOSE: A simple method for manufacturing briquette of higher quality than conventional method. 
     COPYRIGHT: (C)1976,JPO&Japio
Patent JP-H01242556-A (JP)
Title: Optically active liquid crystal compound
Inventor: SUGAWARA SHUNGO
IPC: C07C69/82
Filed: 1988-03-24
Abstract: NEW MATERIAL:A compound expressed by formula I (X is -COO- or -OCO-; Y is -COO-, -O- or direct bond; m and n are 1 or 2 and m+n is 2 or 3; R is >=4C alkyl; at least one of C3F7OCF(CF3) and R is optically active group). EXAMPLE:4''-Octyloxyphenyl 4'-(perfluoro-1-propyloxyethyl)carbonyloxy4- biphenylcarboxylate. USE:A liquid crystal material having great spontaneous polarization, excellent in chemical and light stability with high-speed responsiveness and capable of exhibiting ferroelectricity in a wider temperature range. PREPARATION:An optically active perfluoro-2-propyloxypropionic acid expressed by formula II is reacted with a chlorinating agent to provide an acid chloride, which is then reacted with a pyridine solution to afford the aimed compound expressed by formula I.
Patent JP-H03270792-A (JP)
Title: Anaerobic water treatment apparatus
Inventor: SHIBAZAKI KAZUO
IPC: C02F3/28
Filed: 1990-03-20
Abstract: PURPOSE:To perfectly remove hydrogen sulfide in fermentation gas by providing a fermentation gas circulation pipeline to a reaction tank having anaerobic bacteria held therein and providing a fermentation gas desulfurization equipment and a fermentation gas discharging blower to the circulation pipeline. CONSTITUTION:Waste water flows in the lower part of a reaction tank 2 to flow to the upper part of the reaction tank 2 as an ascending current but the org. matter in the waste water is decomposed during the flow toward the upper part by the action of methane fermentation bacteria held to the reaction tank 2 to form methane and carbon dixode. Silver sulfate in the waste water generates hydrogen sulfide by the action of sulfate reducing bacteria and the purified treated water floods from the upper part of the reaction tank 2 to flow in a treated water tank 4 through a flooding pipe 3 and the water flooding from the treated water tank 4 flows out of the system as treated water through a treated water pipeline 5 to be discharged to rivers or a sewer or transferred to a finish treatment process.
Patent JP-2000264922-A (JP)
Title: Maleimide derivative, maleimide derivative-containing curable composition and curing method of the same
Inventor: MIYAGAWA ATSUSHI
IPC: C08F2/48
Filed: 1999-03-15
Abstract: PROBLEM TO BE SOLVED: To obtain the subject new compound being a photocurable compound capable of curing by treating with a practical light intensity and light exposure dose without using a photopolymerization initiator and giving a cured coating film having a high coating film hardness. SOLUTION: This compound is expressed by formula I [(m) and (n) are each 1-5 and m+n<=6; X and Y are each a (substituted)alkylene or an alkylenecarbonyloxy; p1, p2, q1 and q2 are each 0-5; R1 and R2 are each a (substituted)alkylene or an aryl; R'1 and R'2 are each H, a (substituted)alkyl or an aryl], for example, a compound of formula II. The compound of formula I, for example, can be synthesized by reacting a compound having a spiro- structure and an amino group at the terminal  e.g. 3,9-bis(aminomethyl)2,3,8,10- tetraoxaspiro[5,5]undecane} with maleic anhydride.
Patent JP-S60213571-A (JP)
Title: Power steering for vehicle provided with variable displacement pump
Inventor: SUZUKI MASAHIKO
IPC: B62D5/07
Filed: 1984-04-04
Abstract: PURPOSE:To prevent the occurrence of unnecessary power loss in a power steering as securing a proper steering feeling, by controlling a pressure fluid supply to an assist device in proper quantities in consideration of an angular velocity of a steering shaft. CONSTITUTION:A power steering is provided with a pressure oil control mechanism 70, a constant differential pressure actuator 80 and an electric control mechanism 90, while the pressure oil control mechanism 70 consists of a pressure control valve 70a, a fixed throttle 70b, two relief valves 70c and 70d, and a reservoir 70e. The pressure control valve 70a is provided with a spool 72 fitly installed inside a housing 71 free of slide motion, while two inlet ports 71a and 71b, an outlet port 71c and two drain parts 71d and 71e formed in this housing 71. The constant differential pressure actuator 80 moves a diaphragm 82 up and down so as to cause the differential pressure between both high and low chambers 83 and 84 to be adjusted to constant, thereby decreasing an eccentric value of an eccentric cam 33.
Patent JP-H11264934-A (JP)
Title: Focus detecting device
Inventor: KOBUCHI HIDEKI
IPC: G02B7/04
Filed: 1998-03-18
Abstract: PROBLEM TO BE SOLVED: To provide a focus detecting device easy to adjust, simple to control, wide in focus detectable range and capable of guiding focus direction without making position recognition impossible. SOLUTION: This device is equipped with a two-split photodetecting element 60 by which a surface to be measured is irradiated with the light from a light source output a signal corresponding to the quantity of the reflected light from the surface, a photodetection optical system which includes an objective 57 for guiding the reflected light to the two-split photodetecting element 60, photodetecting elements 61 and 62 which are arranged opposite at positions distant from the two-split photodetecting element 60 and output a signal corresponding to the quantity of light from the measured surface at a position that can not e detected by the two-split photodetecting element 60, and a signal processing system 63 which decides the position of the said measured surface according to the output signals of the two-split photodetecting element 60 and photodetecting elements 61 and 62.
Patent JP-S542844-A (JP)
Title: Spike shoes
Inventor: UEDA TOSHIYA
IPC: A43C15/16
Filed: 1977-06-08
Abstract: PURPOSE: To form a plurality of spikes integrally with the sole of shoes using plyurethane resin ao as to obtain spiked shoes that have high durability and which do not damage floor materials. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-S5921172-A (JP)
Title: Image pickup device
Inventor: TAKENOUCHI MUTSUO
IPC: G03G15/04
Filed: 1982-04-23
Abstract: PURPOSE:To decrease an image pickup device in thickness and to decrease the overall size of an equipment using the image pickup device, by making the reflected light from an original surface made incident to an optical system via a reflecting means, and setting the optical axis of the optical system approximately parallel to the original surface. CONSTITUTION:An image pickup device is stored in prescribed casings PA and PB. A light source 31, a lens array 20 functioning as an optical system for image formation, a long-sized sensor 10 and mirrors 41 and 42 which function as reflecting means of light. An original OR is put on the casing PA and then moved toward an arrow F9. Then the light is irradiated to the picture surface of the original OR from the source 31, and the reflected light from the original surface is made incident to the mirror 41. The light given from the mirror 41 is made incident to the mirror 42 via the array 20. Then the reflecting light from the orignal surface is given to the sensor 10. Thus the image pickup device is reduced in thickness, and the overall size of an equipment using said image pickup device is decreased.
Patent JP-S598196-A (JP)
Inventor: HARITSUSHIYU ENU KOTETSUCHIYA
IPC: H01L27/108
Filed: 1983-04-20
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-H01240991-A (JP)
Title: Character segment control device
Inventor: KAWAMURA NOBUO
IPC: G06K9/34
Filed: 1988-03-23
Abstract: PURPOSE:To make faster a character segment control by composing an X directional one character width histogram data preparing means of plural X directional part histogram data preparing means and an X directional histogram data adder means. CONSTITUTION:An X directional one character width histogram data preparing means 6 consists of plural X directional part histogram data preparing means 14a-14c and an X directional histogram data adder means 15. When the X directional one character width histogram data are prepared, first, for the small width obtained by partitioning the one character fixed regardless of the character width into plural parts in the X direction, plural partial histogram data are prepared. Further, the partial histogram data are added in the respective positions in an Y direction by the number fixed by the character width obtained by the Y directional histogram data. Thus, the Y directional histogram data and the plural X directional histogram data can be simultaneously prepared, and a processing time can be shortened.
Patent JP-S59194399-A (JP)
Inventor: SHIOMI TETSUO
IPC: G21B1/11
Filed: 1983-04-18
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-H0964708-A (JP)
Title: Power-on reset circuit and controller using it
Inventor: MITANI YOSHIAKI
IPC: H03K17/22
Filed: 1996-03-25
Abstract: PROBLEM TO BE SOLVED: To surely provide an output of a reset signal at application of power and to block an output of the reset signal at hit of power in a shorter time than a prescribed hit time. SOLUTION: The circuit is provided with a switch circuit S1 having a capacitor C1 and a capacitor C2 with a larger capacitance than the capacitance of the capacitor C1 and whose electrodes connect to a reference input and whose other electrode connects to a power supply, a switch circuit S2 connecting the live electrode of the capacitor C1 to the other electrode of the capacitor C2, a voltage level discrimination circuit 1 whose output state is inverted when a charging voltage VC2 of the capacitor C2 is in excess of a threshold voltage VT, a discharge circuit 2 consisting of a resistor R1 and a diode D1 connected in series to discharge a charge in the capacitor C2 via the power supply when the power supply voltage is reduced,  an integration circuit 3 consisting of a resistor R2 and a capacitor C2 connecting to an output of the voltage level discrimination circuit 1 and an output circuit 4 applying waveform-shaping to an output of the integration circuit 3.
Patent JP-S55157398-A (JP)
Title: Freeze-melt type sludge treatment unit
Inventor: HORIUCHI KOUICHI
IPC: C02F11/20
Filed: 1979-05-29
Abstract: PURPOSE: To provide the dehydration effect, without the conventional use of a coagulant, to the same degree as its use by a method wherein by pouring into sludge being treated an external water having electric conductivity (which means ion concentration) lower than that of the sludge.  
     CONSTITUTION: Sludge to be treated is mixed with external water having electric conductivity lower than that of the sludge in a mixer 21, so that the sludge conductivity is lowered. The sludge is then supplied to a freeze-melt unit. By lowering the electric conductivity (ion concentration) of the sludge, the efficiency of the freeze- melt unit 3 is enhanced, thereby providing the dehydration effect to the same degree as chemical-pouring into a non-chemical injection type sludge treatment unit without using a coagulant. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-H10269811-A (JP)
Title: Daylighting apparatus for building
Inventor: KUMAGAI TAKENORI
IPC: E04B9/32
Filed: 1997-03-21
Abstract: PROBLEM TO BE SOLVED: To provide a daylighting apparatus which can deliver sufficient natural light to an inner space such as a middle corridor even in a building where daylighting from a roof plane is impossible. SOLUTION: A daylighting apparatus comprises a daylighting opening 5 which is provided on an outer wall 1a of a building 1, an external reflector plate 10 which is provided on an eaves 6 located under the daylighting opening 5 and reflects the light from the sky to the daylighting opening 5, a prism plate 11 which is provided at the daylighting opening 5, refracts both direct light from the sky and the reflected light from the external reflector plate 6 approximately in a horizontal direction, and leads these lights in a garret 3 of the building 1, and an internal reflector plate 15 which reflects the lights guided in the garret 3 by the prism plate 11 downward in the vertical direction to a middle corridor 8.
Patent JP-H01241582-A (JP)
Title: Production of heat fixing roller
Inventor: KON SHUJI
IPC: B05D1/18
Filed: 1988-03-23
Abstract: PURPOSE:To enable coating of a PTFE (polytetrafluoroethylene resin) dispersion to a uniform thickness by providing a stirring roller into a PTFE dispersion bath tank and immersing a rubber roller to be coated into the same while rotating the rollers. CONSTITUTION:The roller 1 to be painted is so disposed in the PTFE dispersion bath tank 2 that the rubber layer 3 thereof is partly immersed in the upper part in said bath tank. On the other hand, the stirring roller 4 for generating the flow in one direction (arrow B) on the surface of the liquid by stirring the PTFE dispersion is provided in the PTFE dispersion bath tank 2. This roller 4 is rotated in an arrow C direction. The uniform flow is, therefore, formed on the surface of the PTFE dispersion and the rubber roller 1 to be coated is rotated in the same direction as the direction of said flow when the rubber roller 1 is immersed into the bath tank 2. The heat fixing roller having the PTFE dispersion coated film which is uniform in the film thickness and has the smooth surface is thereby easily obtd.
Patent JP-H04283180-A (JP)
Title: Endless joint structure for rubber crawler belt
Inventor: MURAMATSU TAKEO
IPC: B62D55/253
Filed: 1991-03-08
Abstract: PURPOSE:To prevent vibration of an endless joint part by butting steel cord trains, extending from the two ends of the endless joint part, against each other and embedding a stripform doubling plate at the butted part and in a rubber resilient body in a state to correspond to the core 3. CONSTITUTION:A rubber crawler belt is continued in the lateral direction of a resilient body 1, steel cords 2 have two ends 21 and 22 butted against each other in a state to front on a core 3. A doubling plate 5 made of a metal is welded facing the core 3 and embedded in a rubber resilient body in a state to hold the above state. As noted above, by processing the butted parts of the steel cord ends 21 and 22, an accident wherein the end part is protruded from the resilient body 1 can be prevented from occurring, and a tensile strength is also held. Further, Since structure wherein only one steel cord train is present between the cores 3 is provided, a rugged feeling owing to a difference in rigidity between the cores 3 during winding of a sprocket and an idler is entirely not produced.
Patent JP-H05273657-A (JP)
Title: Screen for stereoscopic observation
IPC: G03B21/625
Filed: 1992-03-26
Abstract: PURPOSE:To improve visibility and contrast ratio. CONSTITUTION:As to a screen used by a rear type stereoscopic observation device observing a stereoscopic image by projecting equal to or more than two images having parallax from a side opposite to an observer and from a projector, separating the images with right and left eyes, and seeing parallactic image; a barrier 11 in a stripe state disposed on a projector side and having light transmitting/light shielding ratio decided in accordance with the number of the projector, a lenticular board 12 disposed on an observation side, and diffusion board 13 which is disposed between the barrier 11 and the lenticular board 12 and on the focal distance position of the lenticular board 12, and which is an image-formed surface are integrated.