Abstract: In an image forming apparatus for charging a photosensitive body, changing the light exposure amount in at least three levels at exposure to light, thereby forming an electrostatic image made up of a high-potential part, a low-potential part, and an intermediate-potential part therebetween on the photosensitive body, and normally developing and inversely developing the electrostatic image using toners different in charge polarity for forming two types of toner images on the photosensitive body, a first developer used with a first toner image developing unit has electric resistance changed within 10% in the change range of applied voltage to the developer as the difference between a surface potential of the photosensitive body and a developing bias voltage.

Abstract: In an image forming apparatus for charging a photosensitive body, changing the light exposure amount in at least three levels at exposure to light, thereby forming an electrostatic image made up of a high-potential part, a low-potential part, and an intermediate-potential part therebetween on the photosensitive body, and normally developing and inversely developing the electrostatic image using toners different in charge polarity for forming two types of toner images on the photosensitive body, a first developer used with a first toner image developing unit has electric resistance changed within 10% in the change range of applied voltage to the developer as the difference between a surface potential of the photosensitive body and a developing bias voltage.

Abstract: On a support, a porous resin layer which is opaque in a water-unabsorbed state and capable of turning transparent in a water-absorbed state is formed, and also a water-repellent resin layer is so provided as to exist in the porous resin layer at its some area or areas in a co-existent state, to make up a water-metachromatic laminate. A novel toy element can be provided in which latent images standing invisible in a normal condition are rendered visible by means of water as a medium so as to be visually distinguished.

Abstract: The liquid-sealing type vibration isolating apparatus of the present invention includes a coupler attached to a vibrating body, a holder, an insulator for absorbing and isolating vibration from the vibrating body at a position between the coupler and the holder, and a vibration isolating mechanism directly following the insulator and including liquid chambers sealing an incompressible fluid. This vibration isolating mechanism has a main chamber sealing a liquid, having a part of wall thereof formed by the insulator, an auxiliary chamber communicating with the main chamber via an orifice, and an equilibrium chamber provided in a portion of the main chamber via a diaphragm and having a varying volume in the chamber. The vibration isolating apparatus further includes switching means for introducing a negative pressure and the atmospheric pressure continuously or in synchronization with vibration of the vibrating body, and control means for controlling this switching operation.

Abstract: A vibration damping mount capable of reducing vibration and noise, and improving vehicle stability and controllability. Between an inner cylindrical sleeve and outer cylindrical sleeve which are coaxially arranged with each other, a vibration-damping rubber body is disposed and joined thereto. A stopper plate is secured to a lower end of the inner cylindrical sleeve. The vibration-damping rubber body extends from the lower end thereof along a flange which projects outward from a lower end of the outer cylindrical sleeve to define an annular rubber stopper. An end edge of the annular rubber stopper abuts a peripheral part of the stopper plate.

Abstract: The present invention relates to a process for producing a spherical particle comprising an aggregate of particles containing at least 95% of a water-soluble single substance having a viscosity of 10 mPa.

Abstract: A first developing unit comprising a plurality of developing rolls including a developing roll whose rotation direction is matched with the move direction of a photosensitive body and a developing roll whose rotation direction is made opposite to the move direction of the photosensitive body.

Abstract: The liquid-sealing type vibration isolating apparatus of the present invention includes a coupler attached to a vibrating body, a holder, an insulator for absorbing and isolating vibration from the vibrating body at a position between the coupler and the holder, and a vibration isolating mechanism directly following the insulator and including liquid chambers sealing an incompressible fluid. This vibration isolating mechanism has a main chamber sealing a liquid, having a part of wall thereof formed by the insulator, an auxiliary chamber communicating with the main chamber via an orifice, and an equilibrium chamber provided in a portion of the main chamber via a diaphragm and having a varying volume in the chamber. The vibration isolating apparatus further includes switching means for introducing a negative pressure and the atmospheric pressure continuously or in synchronization with vibration of the vibrating body, and control means for controlling this switching operation.

Abstract: The invention relates to spherical granules having a uniform grain size and a uniform density which are suitable for a controlled-release preparation, a process for producing the same, and a spherical granule preparation using the same. Specifically, the invention relates to a process for producing spherical granules comprising the steps of: wetting powder materials comprising one or more kinds of pharmaceutical substances and have a mean particle size of from 1 to 100 &mgr;m; charging the wet powder materials into a centrifugal fluidized granulating apparatus; spraying a liquid to the wet powder materials at a rate of less than 3% based on the plastic limit of the powder materials per min.

Abstract: A vibrating mechanism section comprises an oscillator comprising a vibration coil, a movable iron piece, a stator iron core, a movable shaft, a return spring and so on; a vibration diaphragm driven by the oscillator; and an air pressure generating chamber in which a pulsating air pressure is produced by the vibration diaphragm. The oscillator is provided with a temperature sensor. A vibration isolating mechanism section comprises an insulator; a fluid chamber comprising a main chamber, a sub-chamber, a first orifice and so on; and an amplifying mechanism section comprising a balancing chamber into which the pulsating air pressure is introduced so as to cause the fluid in the main chamber to vibrate, a second diaphragm, a third fluid chamber, a second orifice and so on.

Abstract: In an image forming apparatus, the absolute value (.vertline.VBH-VM.vertline.) of the potential difference between a first development bias electric potential (VBH) and an intermediate electric potential (VM) is set to be smaller (.vertline.VBH-VM.vertline.<.vertline.VBL-VM.vertline.) than the absolute value (.vertline.VBL-VM.vertline.) of the potential difference between a second development bias electric potential (VBL) and the intermediate electric potential (VM).

Abstract: A swivel assembly of a vehicle seat including a ring-shaped upper plate fixed to a seat side member of a vehicle; a ring-shaped lower plate fixed to a floor side member of the vehicle; and a set plate holding the upper plate between it and the lower plate. One ball is provided between the upper plate and the lower plate. The other ball is provided between the upper plate and the set plate. The other ball is in contact with both inner surfaces of each of one sectionally V-shaped guide groove and the other sectionally V-shaped guide groove confronting the one groove. The upper plate can be held at a predetermined position without being loosened vertically and horizontally even though the upper plate, the lower plate, and the set plate have errors occurred in manufacture.

Abstract: To provide spherical particles made substantially from lactose and having high surface smoothness with low abrasiveness, and a process for their production.A process for producing spherical particles containing at least 95 wt % lactose, characterized by comprising a step of producing lactose spherical particles by charging crystalline lactose and/or lactose granules onto a rotary disk in the treatment vessel of a centrifugal tumbling apparatus, dispersing powdered lactose to the lactose granules and/or crystalline lactose as the rotary disk is rotated while providing slit air into the vessel, while also spraying water, an aqueous lactose solution or a dilute aqueous solution of a water-soluble polymer, and a fixation treatment step of drying the obtained spherical particles in a fluidized bed apparatus while spraying an aqueous lactose solution and/or a dilute solution of a water-soluble polymer.

Abstract: A heald frame comprises: a heald support frame for supporting a plurality of healds in parallel, the heald support frame having a central plate portion and a pair of ring-shaped rectangular heald supporting portions extending in opposite directions from the central plate portion; and a heald support extending perpendicularly from the central plate portion, the heald support being integrally connected to the central plate portion of the heald support frame via a generally V-shape joint. The heald frame is made from a reinforced composite material composed of a synthetic resin and a reinforcing filler. Each of the heald supporting portions includes one lower supporting rod for supporting at least a heald.

Abstract: Arylalkanoylamine derivatives having excellent prolyl endopeptidase inhibitory action and resistances to hypoxia and amnesia which are represented by the following general formula (I): ##STR1## wherein A represents an indanyl, indenyl, 1,2,3,4-tetrahydronaphthalenyl or benzofuranyl group; m represents an integer of 0 to 5; Z represents a hydroxymethyl, formyl, nitrile, hydroxyiminomethyl, semicarbazonomethyl or dialkoxymethyl group; X and Y may be the same or different, and individually represent a methylene group or sulfur atom, wherein compounds defined by the following substituents are excluded: A represents an indanyl, indenyl, or 1,2,3,4-tetrahydronaphthalenyl group; X and Y each represent a methylene group; and Z represents a hydroxymethyl or formyl group. Also disclosed is a pharmaceutical composition and method for improving mneme, cerebral circulation and cerebral metabolism comprising the arylalkanoylamine derivatives as the effective ingredient.

Abstract: A method for measuring surface roughness of an end face of a honeycomb structure having a plurality of cells by using a stylus having a width corresponding to a width of at least two cells. A honeycomb surface roughness-measuring element, which is adapted for the measurement of a surface roughness of an end face of a honeycomb structure, includes a stylus having a tip, said tip having a widened edge with a width of 2 to 8 mm and a radius of curvature of 1 to 5 .mu.m.

Abstract: An agent for treating or preventing cerebral circulation disorder, cerebral metabolism disorder, or memory disturbance is disclosed. The agent comprises as an effective component a phenylalkanoylamine derivative represented by the following formula (I), ##STR1## wherein A represents a 1,3-thiazolidin-3-yl group, a 1,2,3,6-tetrahydropyridin-1-yl group, a morpholino group, a thiomorpholin-4-yl group, or a 3-pyrrolin-1-yl group, R.sup.1 and R.sup.2, which may be the same or different, represent a hydrogen atom, a halogen atom, a lower alkyl group, a lower alkoxy group, a nitro group, an amino group, a guanidino group, or a group ##STR2## (wherein R.sup.3 and R.sup.4 independently represent a lower alkyl group or form in combination 5- or 6-membered heterocyclic group), and n represents an integer of 2-6, or a salt thereof.

Abstract: Novel condensed benzene derivatives having prolyl endopeptidase inhibitory, anti-hypoxic, and anti-amnesic activities are disclosed. The compounds are represented by the following (I), ##STR1## wherein A represents a methylene, ethylene, or propylene group, B represents a methylene or ethylene group, m denotes an integer of 0-5, X and Y, which may be same or different, individually represent a methylene group or sulfur atom, R.sup.1 represents a hydrogen atom, a carboxyl, lower alkyloxycarbonyl, hydroxymethyl, or formyl group, R.sup.2 represents a hydrogen atom, a halogen atom, a lower alkyl, lower alkoxy, nitro, or amino group, R.sup.3 represents a hydrogen atom or a lower alkyl group, and the dotted line may optionally be present. They are useful as a medicine for treating or preventing cerebral circulation disorder, cerebral metabolism disorder, or memory disturbance.

Abstract: Water containing nutrients is added to powdered activated carbon or passed through a layer of granular activated carbon for clarification, and water cultivation is effected in facilities by supplying the nourishing water in a water cultivation vessel, inserting seedlings of vegetables to a water cultivation panel installed above the vessel, and, if necessary, providing atmospheric conditions, water temperature and water quality suitable for the growth of the seedlings.