Abstract: A hydrogen engine system comprises an engine, a metal hydride container connected with the engine and providing the engine with hydrogen, a heat intermedium providing mechanism connected with the hydrogen occluding alloy container and providing the metal hydride container with heat intermedium, a first control mechanism connected with the heat intermedium providing mechanism and controlling the heat intermedium providing mechanism so that the temperature of the heat intermedium supplied to the metal hydride container be kept at a constant value, and a second control mechanism connected with the heat intermedium providing mechanism between the first control mechanism and the metal hydride container and controlling the amount of the heat intermedium supplied from the heat intermedium providing mechanism to the metal hydride container.

Abstract: An apparatus for detecting and identifying a biological object. A transparent plate has a first surface onto which a light beam is projected and a second surface onto which a biological object to be detected and identified is placed. The light beam projected toward the first plate surface is transmitted through the plate and toward the object on the second surface, from which the light beam is reflected and retransmitted through the plate toward and through the first surface thereof and received and detected by an optical detector. The detection of a biological object is confirmed by comparing the change of the wavelength characteristics of the reflected and detected light beam in a predetermined time sequence according to the object being first placed upon and then pressed upon the second surface of the transparent plate with respective, known such characteristics thereof.

Abstract: The printing materials of the invention includes a film or sheet prepared from a chlorinated polyethylene containing 10 to 50 wt. % of chlorine and obtained by chlorinating a polyethylene having a molecular weight of 10,000 to 200,000, or from a polymer mixture containing the chlorinated polyethylene; a laminate comprising the film or sheet, and a base material; and a product prepared by impregnating or coating a base material with a solution of the chlorinated polyethylene or the polymer mixture. With the latter two printing materials, the surface of the film or sheet is used as the surface to be printed on. The image fixing method of the invention for use in producing copies by electrostatic printing comprises forming a toner image on one of these printing materials, and thereafter treating the printing material with heat at 160.degree. to 250.degree. C. for 5 to 30 seconds.

Abstract: An apparatus for playing a recording medium on which, in addition to a video format signal and a coded information signal, graphic codes including picture information are recorded as the subcode of the coded information signal. The apparatus is structured to generate, as a reading address data, data which varies sequentially by a predetermined value from a value determined in response to a command, and to write sequentially the graphic codes output from an extracting circuit into a memory and subsequently sequentially read out the graphic codes in the order of address indicated by the reading address data. With this feature, the position of the subcode image can be moved on the picture by the video format signal.

Abstract: In a double air-fuel ratio sensor system having three-way catalysts, a full O.sub.2 storage amount of the three-way catalysts is estimated and compared with a predetermined amount. When the estimated full O.sub.2 storage amount is smaller than the predetermined amount, the three-way catalysts are determined to have deteriorated.

Abstract: A method for forming an image comprising heating a heat-developable light-sensitive material comprising a support having thereon at least a light-sensitive silver halide and a binder, simultaneously with or after imagewise exposure thereof in the presence of water, at least one of a base and a base precursor, and an acetylene compound represented by formula (I):R.sub.1 --C.tbd.C--R.sub.2 (I)wherein R.sub.1 and R.sub.2 each represents a hydrogen atom, a carboxyl group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted alkynyl group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted alkoxycarbonyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted heterocyclic group, or a substituted or unsubstituted carbamoyl group; provided that both R.sub.1 and R.sub.2 do not represent hydrogen atoms at the same time.

Abstract: A tape recorder of the present invention comprises a pair of feed and take-up spools for winding a tape as recording media, a rotatable drum rotated to wind and run the tape between the pair of spools over the drum surface helically, a head for recording, reproducing or erasing signals on the tape wound over said drum surface, and control means for controlling the relative positional relationship between the head and the tape wound over the drum surface based on an error signal such that said signals are stably recorded, reproduced or erased along a desired track, the control means having means for holding the error signal during the period in which the tape is discontinued over a drum surface.

Abstract: In a printing apparatus, a supply pallet storing an original and a photosensitive film is located above a printer. The films are carried onto a transparent plate of the printer in this order by a carrier. Then, light from a light source of the printer is directed toward the transparent plate, whereby an image provided on the original film is printed onto the photosensitive film. Thus, the printing apparatus is small in plane size.

Abstract: A refrigerator comprises a compressor including a first cylinder having an inner cylindrical surface, a piston reciprocating in the first cylinder, and a linear motor for having a.c. electric input power applied thereto to drive the piston; a cold finger including a second cylinder having an elongated inner cylindrical surface, a displacer reciprocating in the second cylinder, and a cold space and a hot space which are divided by the displacer; a temperature detector for detecting the temperature in the cold space; an electric input power decision unit for having a detection signal inputted from the temperature detector and for deciding the electric input power to be applied to the linear motor so that the electric input power grows greater and greater as the temperature in the cold space decreases; and a power source for providing the electric input power to the linear motor based on the output from the electric input power decision unit.

Abstract: A ceramic-metal joined composite body including a ceramic member having a projection formed thereon, and a metallic member having a recess formed therein. The projection of the ceramic member is fitted into the recess of the metallic member, and a corner of a bottom of the recess has a rounded dimension such that R/D.gtoreq.0.04, in which R and D are the rounded dimension of the corner of the bottom of the recess and an outer diameter of the projection, respectively. The ceramic-metal joined composite body particularly is useful in a rotary shaft for a turbocharger rotor or a gas turbine rotor.

Abstract: Disclosed is a polypropylene resin composition which is superior in mechanical strength and affords molded articles having good appearance which comprises (A) a crystalline polypropylene, (B) a polypropylene modified with an unsaturated carboxylic acid or an acid anhydride thereof, and (C) a zinc oxide whiskers. When the composition additionally contains an inorganic filler such as glass fibers, molded articles further improved in appearance can be obtained. The zinc oxide whiskers preferably have a tetrapod type crystal structure.

Abstract: An optical pickup apparatus in which a laser beam reflected from an optical memory medium is separated and incident to a light-receiving element having a plurality of divided light-receiving faces and a focusing error signal is formed on the basis of a difference signal provided by a predetermined combination of light-receiving signals outputted from the respective light-receiving faces of the light-receiving element, comprises a bias signal forming device for forming a bias signal in accordance with a reflectance ratio of the optical memory medium based on a sum of the light-receiving signals outputted from the respective light-receiving faces of the light-receiving element; and a device for superimposing the bias signal on the focusing error signal in an accessing stand-by state with respect to the optical memory medium.

Abstract: A forming roll for a substrate used for an optical recording medium comprises a roll for continuously forming substrates used for optical recording mediums having preformatting information. Said roll comprises a roll substrate having on its surface a stamper on which a pattern corresponding with the preformatting information has been formed, and, assuming the radius of said roll substrate as "r" mm, the length of said pattern in the peripheral direction of said roll substrate as "t" mm, they satisfy the relationship of:l.times.t.ltoreq.0.1.times.r(provided that r.gtoreq.l/2.pi.).

Abstract: An apparatus for continuously taking off a thermoplastic synthetic resin sheet foamed by a vertical foaming furnace which has a rail fixedly disposed horizontally, two bodies mounted obliquely at the same angle in a linear symmetrical manner with respect to a vertical line and moving in parallel along the rail, a driver for driving the bodies, two holding roll rows having a plurality of holding rolls disposed in a zigzag manner along the longitudinal direction of the body, a pair of supports respectively wound on the holding rolls, and sensors having optical fiber sensors electrically connected to the driver and provided at each of the upper ends of the bodies. The interval of the two bodies is defined to be narrow at its top and wider toward the lower interval. The degree of the width of the foamed sheet is determined by the angle. The sensor includes two casing halves. One casing half contains a light emitting unit of the optical fiber sensor.

Abstract: A process for producing a carboxylic acid or an ester thereof represented by formula (I): ##STR1## wherein: R represents a hydrogen atom or a lower alkyl group; R.sup.1 represents a lower alkyl group; CH.sub.2 COOR.sup.3, wherein R.sup.3 represents a hydrogen atom or a lower alkyl group; or NHR.sup.4, wherein R.sup.4 represents a formyl group, an acetyl group, a benzoyl group, or a chloroacetyl group, andR.sup.2 represents a hydrogen atom, a lower alkyl group, or a phenyl group,which comprises hydrogenating an unsaturated compound represented by formula (II): ##STR2## wherein R, R.sup.1, and R.sup.2 are as defined above, in the presence of a rhodium or ruthenium complex catalyst having, as a ligand, BICHEP which means 2,2'-bis(dicyclohexylphoshino)-6,6'-dimethyl-1,1'-biphenyl represented by formula (III): ##STR3## is disclosed.

Abstract: A resin composition for cleaning the inside of molding machines, capable of easily achieving the color exchange and resin exchange of thermoplastic resins in various molding machines, in a small quantity, by a simple operation and in a short time is provided, which resin composition is a cleaning resin composition having (a) 1-10 wt. % of a polystyrene resin, 1-20 wt. % of a neutral salt of an alkylbenzenesulfonic acid, 1-30 wt. % of an inorganic filler and 0.5-10 wt. % of a water-repellent compound blended with a high density polyethylene resin having a melt index of 1.0 or less and a Q value expressing a molecular weight distribution, of 10 or less.

Abstract: The position of a connecting portion between waveforms can be arbitrarily set when a plurality of waveform data is obtained by changing pitch widths of stored external sound waveform data, when a read rate of the waveform data is increased or decreased and the readout waveform data is synthesized, or when the waveform is changed from one waveform to another waveform. In addition, a plurality of loop reproduction cycles can be arbitrarily set when the waveform data is to be read out. In loop reproduction, two items of waveform data having different phases between the preset start and end addresses can be repeatedly read out and synthesized, and their mixing ratios can be changed as a function of time, thereby performing loop reproduction so as not to abruptly change amplitude values of the waveforms.

Abstract: The invention provides an optical recording medium and a method of recording, reading, and erasing information to an optical recording medium, where information is recorded, read, and erased to the recording medium by applying beams projected from a light source capable of varying wavelength of beams. The recording medium contains at least two kinds of organic compounds each presenting photochromic phenomenon and being dispersed in binder. By projecting beams onto the optical recording medium, recording, reading, and erasure of information making use of a photochromic phenomenon can be executed independently against each organic compound dispersed in the recording medium. As a result, the optical recording medium promotes to increase the information recording density in proportion to the number of the kind of organic compounds.

Abstract: A method of manufacturing a superconductor includes the steps of filling a ceramic superconductor or a material mixture thereof in a metal container, elongating the metal container, slitting the metal container by a predetermined width to partially expose a material inside the metal container, and sintering the material inside the metal container.

Abstract: A photo-mask and a method of manufacturing a photo-mask, which includes the steps of applying a resist film onto a substrate of quartz, glass and the like, subjecting the resist film to light exposure and development to form a fine resist pattern, etching the mask substrate covered by the fine resist pattern causing a non-light transmitting thin film of Cr, Ta, etc. to adhere thereon by vapor deposition, sputtering and the like, and removing the thin film on the resist pattern together with the resist film, thereby to form the photo-mask.