Abstract: A valve train device installed in a cylinder head of an engine and driven by a camshaft including a valve unit having an intake valve and an exhaust valve communicated with a combustion chamber of an engine, each of the intake valve and exhaust valve having a linearly extending stem portion and driven in an extending direction of the stem portion; a valve lifter disposed between one end side of the stem portion located apart from the combustion chamber and the camshaft to transmit power from the camshaft to the valve unit; a lost motion unit that interrupts power transmission from the valve lifter to the valve unit; a first spring urging the valve unit in a direction to close the intake valve or exhaust valve; and a second spring having a diameter lager than that of the first spring and urging the lost motion unit against the valve lifter.

Abstract: The present invention includes: a hardening control unit (70) for controlling an induction hardening apparatus (10, 10A) based on setup conditions data regarding the induction hardening apparatus (10, 10A); a hardening monitoring unit (20) that measures, as measurement data, the electric quantity in an electric circuit configured to include a high-frequency inverter (11), a capacitor (12), and a heating coil (14, 14A, 14B) and that monitors an induction hardening status; and a data collecting unit (80) that collects the data from various sensors in the induction hardening apparatus (10, 10A, 10B) obtained when the induction hardening apparatus (10) subjects the work (15, 15A, 15B) to an induction hardening based on the setup conditions data outputted from the hardening control unit (70) and that collects the measurement data from the hardening monitoring unit (20) to store the collected data from the various sensors and the measurement data so that the collected data from the various sensors and the measureme

Abstract: A stepped down groove 53 is provided around the peripheral surface of a rod portion 43 of a spool 40 which faces a third oil groove 33. Both the axial ends 53a and 53b of the stepped down groove 53 are located axially outside of both the axial ends 33a and 33b of the third oil groove 33 at least while the valve is in pressure-adjusting condition. Also, another stepped down groove 52 is provided around a land 42 which faces a first oil groove 31. Both the axial ends 52a and 52b of the stepped down groove 52 come, respectively, to the right and left sides of the axial end 31b of the first oil groove 31 to which end the spool 40 shifts to increase the opening of the oil groove at least while the valve is in pressure-adjusting condition.

Abstract: A stepped down groove 53 is provided around the peripheral surface of a rod portion 43 of a spool 40 which faces a third oil groove 33. Both the axial ends 53a and 53b of the stepped down groove 53 are located axially outside of both the axial ends 33a and 33b of the third oil groove 33 at least while the valve is in pressure-adjusting condition. Also, another stepped down groove 52 is provided around a land 42 which faces a first oil groove 31. Both the axial ends 52a and 52b of the stepped down groove 52 come, respectively, to the right and left sides of the axial end 31b of the first oil groove 31 to which end the spool 40 shifts to increase the opening of the oil groove at least while the valve is in pressure-adjusting condition.

Abstract: A printer head member having ultrafine grooves of high density and high precision. In one or more embodiments of the invention, a flat plate made of ceramics, glass, silicon or the like is bonded and integrated to a partition wall made of a powder of ceramics, glass, silicon or the like, obtained by a molding process. The mold used for obtaining the partition includes ultrafine grooves that conform to the shape of a partition. In another embodiment of the invention, a member for passage having high density and high precision is obtained by a molding process. A flat plate made of ceramics, glass, silicon or the like is bonded and integrated to a partition wall made of a powder of ceramics, glass, silicon or the like, using a molding die having one or more fine grooves for forming one or more partition walls, wherein at least a passage is formed between the partition walls.

Abstract: A coloring composition for a color filter, which comprises (i) an organic pigment, (ii) a binder, and (iii) a pigment derivative which is an organic pigment to which a sulfonate group and a sulfonamide group are bonded or a salt thereof, is provided, and using the coloring composition, a color filter which manifests excellent coat property, has not special color unevenness and has excellent contrast can be produced.

Abstract: A navigation apparatus displays a map so as to support a travel of a movable body.

Abstract: A composition used for an ingredient of printing ink, which comprises an organic pigment and a pigment derivative represented by the formula (I) in the acid form: ##STR1## wherein D represents a residue of an organic pigment other than azo, R.sub.1 represents a hydrogen atom or an unsaturated aliphatic, saturated aliphatic or aromatic hydrocarbon group having 1 to 20 carbon atoms, R.sub.2 represents an unsaturated aliphatic, saturated aliphatic or aromatic hydrocarbon group having 1 to 20 carbon atoms, m represents a number of from 0 to 3 and n represents a number of from 1 to 4, provided that m+n is from 1 to 5.

Abstract: A string for use on musical instrument is made of a core wire composed of long filaments, sheathed with a thick mantle of a precious metal such as gold, silver, platinum, palladium, copper, or the like, or of other metal (5) having excellent ductility, or of an alloy of these metals, or of a synthetic resin or ceramic. It becomes possible to change the density per unit length, thus to enable the adjustment of sound quality and the attenuation rate, and the selection of the basic vibration frequency. It also becomes possible to adjust the tensile strength of the string, thus to enable the selection of the tensile strength and the density in accordance with the type of the musical instrument which is strung and the type (number) of the string. It also becomes possible to maintain the sound quality of the wound wire for bass strings for a long term, and to take easily countermeasures against abrasion with a partial hardening treatment.

Abstract: A pigment composition which comprises an organic pigment and a dioxazine pigment derivative represented by the following formula (I); ##STR1## wherein R.sub.1 and R.sub.2 each independently represents a substituted or unsubstituted and saturated or unsaturated aliphatic hydrocarbon group or aromatic hydrocarbon group, or R.sub.1 and R.sub.2 form a heterocyclic ring; L is an integer of 1-6; m is 0.5-3; and n is 0.5-3.5 provided that total of m and n is 1-5 or a salt thereof; andthe pigment composition can be used with excellent pigment characteristics for various uses, and particularly, when they are used for paints or printing inks in the form of non-aqueous dispersion system, the dispersion system has lower dispersion viscosity and exhibits good flowability and there occurs no color segregation in the dispersion system and it has high coloring power and gives good prints or coats having good gloss and high transparency.

Abstract: 4,4'-Diamino-1,1'-dianthraquinonyl compounds which are obtained in a known manner and which are easy to agglomerate or aggregate owing mainly to their too fine particle size are conditioned by heating an aqueous suspension consisting essentially of the 4,4'-diamino-1,1'-dianthraquinonyl compound and water in the presence or absence of a mineral acid or an alkali. The thus obtained 4,4'-diamino-1,1'-dianthraquinonyl pigments are used in paints, printing inks, coloring of plastics and the like. The aqueous suspension is preferably prepared by desulfonating a 4,4'-diamino-1,1'-dianthraquinonyl-3,3'-disulfonic acid compound in a mineral acid such as sulfuric acid and then mixing the desulfonation reaction mixture with water or by once isolating the resulting 4,4'-diamino-1,1'-dianthraquinonyl compound and mixing the isolated compound with water.

Abstract: Crude 4,4'-diamino-l,l'-dianthraquinonyl-3,3'-disulfonic acids or salts thereof are purified by subjecting an aqueous solution containing the crude products to salting-out using inorganic salts, the aqueous solution being adjusted within a range of from acid to neutral region, whereby a product usable as such for the production of 4,4'-diamino-1,1'-dianthraquinonyl red pigments having excellent pigmentary properties is obtained in high yields with industrial advantages.

Abstract: A desulfonation reaction mixture of 4,4'-diamino-1,1'-dianthraquinonyl-3,3'-disulfonic acid obtainable in a conventional manner is mixed in the form of an aqueous acid suspension with a surface active agent, followed by filtration, whereby filterability and flowability of the produced 4,4'-diamino-1,1'-dianthraquinonyl pigment are efficiently improved.

Abstract: A video recording and playback device with a built-in video camera includes an outer case having the same profile as that of a tape cassette that can be inserted into an exiting stationary video tape recorder.

Abstract: A device for producing information recording disks comprises a stamper mount for placing a stamper thereon, a stamper-fixing shaft for fixing the stamper, and a pressing plate for pressing a backing plate toward the stamper after a liquid resin is injected in the space between the backing plate and the stamper. Injection is effected via a passage made at the center of the stamper mount, and the injected resin is stretched outwardly radially by pressing the backing plate. An ultraviolet ray is irradiated to the stretched resin through the backing plate to harden the resin. An injection valve movably received in the stamper-fixing shaft may be used so that uninjected resin is prevented from being hardened. The injection valve may have a center projection as well as a flange portion at its top so that machining for making a center hole of the disk is unnecessary. The periphery of the flange portion may be wetted by the resin before the backing plate is placed on the flange portion.

Abstract: Provided is an information recording medium manufacturing device of the type in which a radiation curable layer-forming liquid resin is injected into a gap between a planar stamper carrying an information recording signal pattern to be transcribed and a planar flexible carrier member having at least one signal pattern carrying surface through means, for injecting the liquid resin, then the liquid resin is uniformly developed all over the surface of the carrier member by pressing a holding plate against the carrier member, and is set by irradiating radiant rays so as to form a transfer layer, thereby to obtain an information recording medium by separating from the stamper the carrier member united with the transfer layer.