Abstract: A waveguide device includes: a photonic crystal layer having holes periodically formed in an electro-optical crystal substrate; a line-defect optical waveguide formed in the photonic crystal layer; a first electrode arranged above the electro-optical crystal substrate, the first electrode being transparent to light; and a second electrode arranged below the electro-optical crystal substrate. Each of an optical scanning device and an optical modulation device includes the above-mentioned waveguide device.

Abstract: A content generation apparatus capable of easily confirming content data, the information of which is registered in a blockchain, is provided. An image pickup apparatus generates an image file and then immediately calculates a hash value of the image file, and transmits image file information including the hash value to a management system. In response to receipt of a registration completion notification indicating that a process of registering the image file information in a blockchain is completed, the image pickup apparatus stores registration-completed information indicating that the image file information is registered in the blockchain, relating to the image file.

Abstract: A content generation apparatus capable of guaranteeing that a provider of a content is a generator of the content is provided. The content generation apparatus that generates a content according to an instruction received from a user includes an acquisition unit configured to acquire biometric information of the user, a biometric authentication unit configured to perform biometric authentication of the user based on the biometric information of the user, a hash value generation unit configured to generate a hash value of the content in a case that the biometric authentication of the user has succeeded, and a communication unit configured to transmit the content and information of the content to a management server that registers the hash value and the information of the content in a blockchain. The information of the content includes result information indicating a result of the biometric authentication of the user.

Abstract: A server device includes a communication unit and a control unit that communicates via the communication unit. The control unit receives, from a plurality of terminal devices, requests to receive a service from one vehicle, each of the requests specifying a provision period and a provision section of the service. Of a plurality of such moving processes that the vehicle is located in the provision section during the provision period of each of one or more services, the control unit sends, to the vehicle, information instructing the vehicle to perform a moving process with a higher total score assigned to a service included in the moving process than a remainder of the moving processes.

Abstract: An air bag device includes a retainer to which an inflator and a folded air bag are attached. The retainer is fixed to a steering wheel armature and has a plurality of hooks formed in a side wall portion thereof. A module cover covers the air bag and each hook of the plurality of hooks is engaged with an opening of a leg piece portion projected from a rear side. The module cover can be vertically moved with respect to the retainer. A horn plate has a plurality of contacts attached along a circumferential edge of the module cover and moved integrally with the module cover at a horn operating time. A contact plate is attached to the retainer. A horn spring is arranged between the horn plate and the retainer. The contact plate includes a clip portion fastened to the retainer and a leaf spring portion abutting against one of the contacts of the horn plate at the horn operating time.

Abstract: A floating type air bag device able to prevent backlash of a module cover and easily position the module cover with respect to a steering wheel without dispersion and a sacrifice of an operation feeling of horn sounding is provided.

Abstract: The invention provides a floating type air bag device having a steering horn contact device able to push-in a retainer by a clearance or more between a fixing contact of the retainer side and a movable contact of a module cover side. The air bag device has a retainer (10) to which an inflator and a folded air bag are attached, the retainer (10) being fixed to a steering wheel armature (60) and having a plurality of hooks (13) formed in a side wall portion thereof (12); a module cover (20) in which the module cover covers the air bag and the hook (13) is engaged with an opening (22b) of a leg piece portion (22) projected on a rear side and the module cover (20) can be vertically moved with respect to the retainer (10); a horn plate (30) attached along a circumferential edge of the module cover (20); a contact plate (40) attached to the retainer (10) or the horn plate (30); and a horn spring (50) arranged between the horn plate (30) and the retainer (10).

Abstract: The invention provides a vehicle confronting apparatus and a vehicle confronting method for a vehicle, which enables to confront a vehicle surely for a short while. A vehicle confronting apparatus 1, comprises: a guide-type confronting device 2 guiding a wheel of a vehicle 7 entering to a confronting position, and regulating both sides of the wheel of the vehicle; a run-out-type confronting device 4 rotationally driving the wheel of the vehicle reaching the confronting position; and a control device 6 controlling motions of the guide-type confronting device 2 and the run-out-type confronting device 4. The control device 6 cancels the regulation of the wheel by the guide-type confronting device 2 within a period between a time of starting of the rotational driving of the wheel of the vehicle 7 and a time when the rotation speed of the wheel reaches a predetermined run-out speed.

Abstract: The invention provides a vehicle confronting apparatus and a vehicle confronting method for a vehicle, which enables to confront a vehicle surely for a short while. A vehicle confronting apparatus 1, comprises: a guide-type confronting device 2 guiding a wheel of a vehicle 7 entering to a confronting position, and regulating both sides of the wheel of the vehicle; a run-out-type confronting device 4 rotationally driving the wheel of the vehicle reaching the confronting position; and a control device 6 controlling motions of the guide-type confronting device 2 and the run-out-type confronting device 4. The control device 6 cancels the regulation of the wheel by the guide-type confronting device 2 within a period between a time of starting of the rotational driving of the wheel of the vehicle 7 and a time when the rotation speed of the wheel reaches a predetermined run-out speed.

Abstract: A floating type air bag device able to prevent backlash of a module cover and easily position the module cover with respect to a steering wheel without dispersion and a sacrifice of an operation feeling of horn sounding is provided.

Abstract: A steering wheel is disclosed, the steering wheel comprising a frame as radially outwardly-extending spokes (3,4) and a rim (5). The frame defines a recess to receive an air-bag unit 9. The steering wheel is provided with a number of mounting elements (26) associated with a respective spoke (3,4). Each mounting element (26) is connected to the steering wheel and has a portion (27) overlying part of the steering wheel. The air-bag unit (9) is connected to each mounting element (26) by means of a resiliently-biased connection to permit relative movement of the air-bag unit (9) with respect to the steering wheel, such that the peripheral part of the air-bag unit (9) defines a pre-determined gap between itself and the overlying portion (27) of the mounting element (26).

Abstract: A high performance epitaxial wafer which is useful, for example in a light emitting device is produced with a buffer layer. The epitaxial wafer has a substrate of a compound semiconductor selected from a group consisting of GaAs, GaP, InAs and InP. The buffer layer of GaN is grown on the substrate to a thickness within the range of 10 nm to 80 nm. An epitaxial layer of GaN is formed on the buffer layer. The buffer layer is grown at a first temperature by organic metal chloride vapor phase epitaxy, while the epitaxial layer is grown at a second temperature, which is higher than the first temperature, by the organic metal chloride vapor phase epitaxy.

Abstract: In a semi-insulating gallium arsenide single crystal containing at least one of deep acceptor impurities and at least one of deep donor impurities and having a resistivity of at least about 10.sup.6 .OMEGA..multidot.cm at 300 .degree. K., (1) at least one of the deep donor impurities is oxygen, the oxygen concentration in the single crystal being at least about 4.times.10.sup.16 cm.sup.-3, while the silicon concentration in the single crystal being simultaneously at most about 2.times.10.sup.15 cm.sup.-3, (2) at least one of the deep acceptor impurities is chromium, the chromium concentration in the single crystal being within a range of about 3.times.10.sup.15 to about 3.times.10.sup.17 cm.sup.-3 and (3) at least one of tellurium, tin, selenium and sulfur is contained as another shallow donor impurity than silicon so to satisfy the relationship of N.sub.AA >N.sub.D -N.sub.A >-N.sub.DD wherein N.sub.AA represents the sum of concentrations of the deep acceptor impurities including chromium, N.sub.