Abstract: Disclosed is a communicatory navigation system including an information center (150), at least one navigation unit (100) each mounted on a vehicle and communication means for allowing bi-directional data communication between the information center and the navigation unit. Data transmission from the navigation unit to the information center is made during a period of communication that begins when the navigation unit become communicatable with the information center and ends when the bi-directional data communication therebetween is disconnected. The navigation unit is provided with a drive route history memory area (131) and an instrument operation history memory area (132), and data in these memory areas are transmitted to the information center, together with the vehicle current position data and the destination position data.

Abstract: A radar device for detecting distances and relative speeds of obstructions such as preceding vehicles has a stationary object identifier for identifying stationary objects such as roadside guard rails and the like and a stationary object eliminator for eliminating data identified as pertaining to such stationary objects. The stationary object identifier detects peak densities in a beat spectrum detected as a difference between transmitted and received frequencies of a radar beam modulated to rise and fall in frequency periodically and identifies peak groups having peak densities above a predetermined value as stationary objects. Therefore, it is possible to detect a stationary roadside object on the basis of peak densities. The stationary object eliminator eliminates data of peak groups identified as stationary objects by the stationary object identifier and thereby removes them as objects of combination processing for pairing rise side beat frequencies with fall side beat frequencies.

Abstract: The present invention provides a superior external storage device that can relay data concerning its mute state to an external apparatus, and a superior information processing apparatus that can be connected to such an external device.The external storage device determines whether currently retrieved data from a storage medium are audio data or computer data, and notifies the information processing apparatus of the muted state when the retrieved data are computer data. The notification of the muted state may be performed by, for example, loading a mute signal to the motherboard of the information processing apparatus through an interface connector. As a result, the information processing apparatus can accurately identify the mute period of the external storage device, and accordingly, can precisely disable the sound function (e.g., an audio amplifier or a mixer in an audio controller) and switch it to the power saving state.

Abstract: An object detecting system detects an object using an FM-CW wave, so that even if either one of rising-side and falling-side peak frequencies is missing, a plurality of objects can be accurately recognized by accurately combining pluralities of rising-side and falling-side peak frequencies. When it is determined that either one of rising-side and falling-side peak frequencies is missing, the combination of the peak frequencies is determined by calculating the missing peak frequency based on a peak frequency which is not missing.

Abstract: A substrate for controlling the growth direction of serve fibers charcterized in that a nerve cell adhesive substance is fixed in the form of a desired pattern and a process for preparing the substrate, a method for controlling the growth direction of nerve fibers and a neuronal network.According to this invention, precise control of nerve fibers' growth direction is achieved.

Abstract: An ink cartridge for use with, for example, a stencil printer and storing viscous ink therein is disclosed. The cartridge is free from damage and deformation during storage or transport in various kinds of atmospheres. Particularly, an ink outlet included in the cartridge is prevented from tilting. The cartridge can, therefore, be surely and accurately mounted to an apparatus. The ink outlet is protected from damage even when the cartridge is let fall by accident.

Abstract: A target PES value input from a controller and a value from a PES value calculator which corresponds to the displacement of a magnetic head are synthesized. A coefficient applicator applies a predetermined coefficient K.sub.1 to the above deviation (multiplication), and a variable coefficient applicator applies a coefficient K.sub.a to the resulting value. The coefficient K.sub.a is varied and set in the variable coefficient applicator in accordance with a value input from a table. The correspondence between the target PES value and the coefficient K.sub.a used as a feedback coefficient for the PES value is stored in the table in advance so that the coefficient K.sub.a is small when the PES value varies sharply and so that the coefficient K.sub.a is large when the PES value is small. The variable coefficient applicator outputs, to a driver, a value to which the coefficient K.sub.a has been applied in accordance with the value from the table.

Abstract: A cylindrical anal retractor for examining the inside of an anus of a living body including an inserting valve portion inside of which a substantially circular-shaped opening is formed, a handle which serves to dilate the opening by gripping it, and an auxiliary appliance for making the insertion of the inserting valve portion into the anus smooth; the trivalve inserting portion has three plate-like members, which are curved inside, and two of the members are connected to the handle so as to be rotatable about axes extended in an inserting direction of the inserting valve portion. In the anal retractor according to the present invention, therefore, the pain which is given to the patient when the anal retractor is inserted into his or her anus is remarkably reduced.

Abstract: An anti-thrombogenic substance is immobilized on a base of a medical device to impart anti-thrombogenic properties to the medical device. The method comprises the steps of applying a photo-reactive azide derivative macromolecular material to a base to form a bonding layer, coating the bonding layer with a macromolecular layer composed of a water-soluble photo-crosslinking macromolecular material containing the anti-thrombogenic substance, and irradiating the base with ultraviolet light with the bonding layer and the macromolecular layer formed thereon to develop inter-molecular covalent bonding in the bonding layer. The macromolecular layer containing the anti-thrombogenic substance is thus fixed onto the base. Concurrently, the anti-thrombogenic substance is immobilized in the macromolecular layer which is crosslinked. The azide derivative can be poly-m-azidostyrene, copolymers, of poly-m-aziodstyrene with styrene and copolymers of poly-m-azidostyrene with methyl methacrylate.

Abstract: A process for modifying the surface of a material such as plastics, metals, glasses and ceramics which comprises the steps of (1) coating a compound having at least one azido group on the surface of the material to be modified, (2) making a modifier substance to be fixed for the modification exist on or in the coated surface, and (3) irradiating ultraviolet rays to the coated surface to fix the modifier substance to the coated surface, wherein various compounds can be used as the modifier for converting the characteristics of the material surface to the desired characteristics without previously treating them, and various materials can be easily modified with a firm fixing of the modifier.

Abstract: A tractor has a three-point link assembly comprising a top link and opposed lower links which are connected together by a connecting assembly at their ends toward a working implement. The connecting assembly comprises an upper connector and lower connectors removably in engagement with corresponding connectable portions of the implement. The PTO shaft of the tractor is connected to an input shaft of the implement by an extendable transmission shaft having a pair of tractor joint and implement joint at its opposite ends. The connecting assembly has a clutch for separably operatively connecting an externally splined portion of the implement input shaft to an internally splined portion of the implement joint. The clutch comprises a guide fixed to the connecting assembly and extending substantially longitudinally of the tractor, a tubular case provided in the guide movably axially thereof and an operating assembly for the case. The implement joint is inserted in the case.