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| Number | Title | Issue Date |
| 5334519 | Process for biological production of amides with R. rhodochrous J-1 In a process for biological production of an amide wherein a nitrile is hydrated into a corresponding amide by the action of a nitrile hydratase originated in a microorganism, the improvement which comprises the use of nitrile hydratase which is obtained ... | 08/02/1994 |
| 5332380 | Extrusion head for an extrusion installation of the rubber or plastic processing industry An extrusion head for an extrusion installation for extruding plastic material and having two, three or four extrusion cylinders has a stationary part which is fixedly mounted on the discharge ends of the extrusion cylinders and has flow channels for dire... | 07/26/1994 |
| 5331618 | Synchronizing signal detector for multi-beam optical disk unit There is disclosed a synchronizing signal detector for a multi-beam optical disk unit employing a semiconductor laser array as an optical head, in which detection of a synchronizing signal is performed when all-bit coincident is detected in one half or mo... | 07/19/1994 |
| 5328566 | Process for producing inorganic fiber-based prepreg sheet and process for producing insulating laminate A process for producing an inorganic fiber-based prepreg sheet, which comprises preparing a slurry containing 35-80% by weight of a phenolic resin powder of 0.01-100 μm in average particle diameter, 65-20% by weight of an inorganic fiber (the amounts are... | 07/12/1994 |
| 5324178 | Motor driven air pulsator and method for the assembly thereof The motor-driven pulsator comprises, inter alia, a turbine (10) having a distributor (11) and an air-agitating member (12), and an electric motor (20) having a casing (200), a shaft (210) and a connector (220). This motor-driven pulsator comprises a mount... | 06/28/1994 |
| 5318908 | Method for cultivation of nitrile hydratase-producing pseudomonas A method for the cultivation of bacteria of the genus Pseudomonas capable of producing nitrile hydratase is disclosed. The method involves adding a water soluble copper compound in an amount of about 0.5 to 5.0 mg/l as calculated in terms of copper to a c... | 06/07/1994 |
| 5315422 | Optical Mach-Zehnder type logic element which performs an XOR operation An optical logic element is disclosed which performs an XOR operation through utilization of the high-speed property of light. On each branched waveguide of a Mach-Zehnder interference type optical waveguide there is provided a phase modulating element wh... | 05/24/1994 |
| 5312908 | Chitin-chitosan oligomer having 2,5-amhydromannitol group or 2,5-anhydromannose group at terminal end and method for preparation thereof A chitin oligosaccharide which is a chitin oligomer having a 2,5-anhydromannose group or a chitosan oligosaccharide which is a chitosan oligomer having a 2,5-anhydromannose group having a structure of the formula shown below at a terminal end: ##STR1... | 05/17/1994 |
| 5309933 | One-hand openable and closable umbrella There is disclosed a one-hand openable and closable umbrella which does not cause relative rotational movement and displacement between an inner shaft and an outer shaft. The inner shaft has a U-shaped groove extending in the lengthwise direction thereof ... | 05/10/1994 |
| 5309440 | ISDN user-network interface system An ISDN-user-network interface system comprising an interface buffer and an interface adapter. The interface buffer provided between an ISDN network terminal equipment and a terminal equipment to receive an up-signal frame transmitted from said terminal e... | 05/03/1994 |
| 5306924 | Semiconductor device with strained-layer superlattice A semiconductor device with a strained-layer superlattice is disclosed, in which a first semiconductor and a second semiconductor of a lattice constant smaller than that of the first semiconductor are stacked on a clad layer of a lattice constant substant... | 04/26/1994 |
| 5302256 | Immersion tin/lead alloy plating bath An immersion tin/lead alloy plating bath has a basic composition comprising an organic sulfonic acid, divalent tin and lead salts of the organic sulfonic acid and thiourea and further contains thiocyanic acid or derivative thereof, optionally with hydrate... | 04/12/1994 |
| 5295938 | Arrangement for tool magazines for sheet metal working machines A punching machine has an upper (3) and a lower (4) tool magazine of the carousel type. Coaxially interacting punching tools (10) and die tools (19) are transferred in conjunction with tool changing from take-up positions in the upper and lower magazine t... | 03/22/1994 |
| 5286925 | Electrical conductor, process for manufacturing an electrical conductor and electrode for an electrolysis cell Electrical conductor comprising a metallic bar (1) jacketed with a sheath (2) made from a metal different from that of the bar, in which the bar (1) exhibits at least one longitudinal groove (3, 3') containing a bead (4, 4') made from the same metal as th... | 02/15/1994 |
| 5285520 | Predictive coding apparatus A coding apparatus is disclosed, in which coding can be achieved by simply storing, in a memory, the results of necessary coding operations including the feedback of the quantization error and reading out the data from an address of the memory specified b... | 02/08/1994 |
| 5280521 | Portable telephone system A portable telephone system is disclosed in which a plurality of i-th class exchanges, which accommodate key service units of a plurality of portable telephone sets present in each service area, and at least one (i+1)th class exchange which accommodates t... | 01/18/1994 |
| 5278944 | Speech coding circuit A speech coding circuit is disclosed, which comprises a PCM encoder for converting an analog input into a digital output, and a speech coder with voice activity detector which encodes the digital output from the PCM encoder into speech coding data and det... | 01/11/1994 |
| 5277193 | APNEA preventive stimulating device The sleep-apnea syndrome is classified into a so-called central type caused by an abnormality in the respiratory center, an obstructive type by an upper airway obstruction, and a mixed type by a combination thereof. Among the rest, the obstructive type is... | 01/11/1994 |
| 5274536 | Illumination cover for fluorescent lamp A fluorescent lamp cover molded as a unitary hollow structure made of light-transparent synthetic acrylic resin having an opening for receiving the fluorescent lamp in the interior of the cover. A prismatic diffuser plate of the lamp cover has an interior... | 12/28/1993 |
| 5274000 | Benzofuran and benzothiophene derivatives, anti-hyperuricemia agents A new series of benzofuran and benzothiophene derivatives are disclosed. These compounds have a structure which can be obtained by substituting the third position of 2-lower alkyl-benzofuran or 2-lower alkyl-benzothiophene with a substituted benzene deriv... | 12/28/1993 |
| 5266176 | Bipolar electrode for an electrolyzer Bipolar electrode for an electrolyser of the series type, comprising two metal plates (1, 2) arranged in parallel facing each other, an electrically conductive solid mass (3) maintained under pressure between the two plates and a means for heating the sol... | 11/30/1993 |
| 5240944 | Cyclic guanidine derivatives, anti-ulceratives and method of manufacturing the same Derivatives of cyclic guanidine are disclosed, which are represented by the following formula: A--S--R wherein A is ##STR1## R1 represent a lower alkyl or substituted phenyl or unsubstituted phenyl group; R2 is a lower alkyl; R | 08/31/1993 |
| 5234242 | Submarine cable grapnel There is disclosed a submarine cable grapnel which is tied to the two rope of a cable ship and is dragged on the bottom of the sea, one grappling unit and at least one attitude stabilizer is connected while this assembly is connected at one end the two ro... | 08/10/1993 |
| 5230060 | Speech coder and decoder for adaptive delta modulation coding system Deterioration of speech quality due to coding errors during transmission is reduced by suppressing high changes in amplitude. High changes in amplitude are detected by comparing an amplified step size with a decoded output signal. Step size is amplified (... | 07/20/1993 |
| 5225728 | Non-contact-guidable magnetic floating device A simple-structured non-contact-guidable magnetic floating device which has stable restoring forces in vertical and horizontal directions perpendicular to the direction of guiding the moving member. At least one inner magnetic member is formed so that mag... | 07/06/1993 |
| 5221154 | Device for retaining a shaft housed at least partially in a sleeve, which parts are capable of relative translational and rotational motion, and its application to motor vehicle steering systems A shaft retaining device having a shaft selectively retained as to translation and rotational movement. A sleeve coaxial with the shaft encloses a length of the shaft. The shaft has an outwardly projecting cam within the sleeve. A cam follower carried by ... | 06/22/1993 |
| 5220079 | Process for para-methylolating phenol compounds A process for preparing phenols with high selectivities, comprising reacting a phenol compound and a formaldehyde source with a quaternary ammonium as a counter cation of a phenol anion in the presence of an alcoholic organic solvent.... | 06/15/1993 |
| 5210786 | Portable telephone system using stratified exchange system A portable telephone system is disclosed in which a plurality of i-th class exchanges, which accommodate key service units of a plurality of portable telephone sets present in each service area, and at least one (i+1)th class exchange which accommodates t... | 05/11/1993 |
| 5207432 | Apparatus for playing rebounding ball games Apparatus for playing rebounding ball games on a hollow pyramid-shaped structure having three or four solid side surfaces constituting playing surfaces. The pyramid-shaped structure is positioned upright or laid on a side, centrally of a plurality of play... | 05/04/1993 |
| 5204981 | Interference elimination system Accordingly to the present invention, when an incidence angle of a direct wave or a satellite elevation angle reaches a predetermined value, signals from two (or more) antennas, which are disposed at positions where variations in the field intensities of ... | 04/20/1993 |
| 5204575 | Surface acoustic wave resonator A surface acoustic wave resonator having an interdigital transducer on a piezoelectric substrate. Grating reflectors, which have electrode strips of the same width and the same pitch as those of electrodes of the interdigital transducer and of a number sm... | 04/20/1993 |
| 5202612 | Concrete vibrator A concrete vibrator is disclosed in which a sensorless semiconductor motor is employed for driving an exciter. The sensorless semiconductor motor has an arrangement in which the rotational position of the permanent magnet rotor is sensed through utilizati... | 04/13/1993 |
| 5201143 | Window stay A window stay is provided for a casement type window so that its window sash is shifted outwardly from the window frame as it is being opened. The window stay comprises a first arm, a second arm, and a third arm associated with a driving rod. The first ar... | 04/13/1993 |
| 5187717 | Tunable semiconductor laser A wavelength-tunable semiconductor laser of distributed feedback (DFB) type wherein a diffraction grating having periodic corrugations along the direction of travel of light is formed on an active layer of at least one of layers adjacent thereto. An elect... | 02/16/1993 |
| 5185710 | Quaternary-level waveform generator A quaternary-level waveform generator in which a modulation wave prior to a band restriction (a quaternary-level square wave sequence) is separated into two binary-level square wave sequences and as waveform components prestored corresponding waveform com... | 02/09/1993 |
| 5181182 | Multi-level band-restricted waveform generator A multi-level band-restricted waveform generator in which a modulation wave prior to band restriction (M-level signal sequence) is broken into elementary waveforms and a plurality (N-nary) of prestored waveform components corresponding to the elementary w... | 01/19/1993 |
| 5178156 | Apnea preventive stimulating device The sleep-apnea syndrome is classified into a so-called central type caused by an abnormality in the respiratory center, an obstructive type by an upper airway obstruction, and a mixed type by a combination thereof. Among the rest, the obstructive type is... | 01/12/1993 |
| 5177799 | Speech encoder A speech encoder is disclosed, in which, of the DCT coefficients after the discrete cosine transformation, a coefficient which has a large absolute value and exerts great influence on the tone quality is selected and encoded and zeros are inserted into th... | 01/05/1993 |
| 5175184 | Benzothiophene derivatives and antihyperuricemia thereof A new series of benzofuran and benzothiophene derivatives are disclosed. These compounds have a structure which can be obtained by substituting the third position of 2-lower alkyl-benzofuran or 2-lower alkyl-benzothiophene with a substituted benzene deriv... | 12/29/1992 |
| 5173865 | Method and apparatus for detecting motion of moving picture A system for detecting three-dimensional motion of a three-dimensional object by obtaining, for each block, a velocity vector from two temporally successive images of a moving picture including the three-dimensional object. A three-dimensional model is pr... | 12/22/1992 |
