Abstract: An imaging apparatus to which an accessory is detachably attached includes an imaging unit configured to convert an object image into an electrical signal, a signal generation unit configured to generate a vertical synchronizing signal that is synchronized with a timing of exposure of the imaging unit and output the generated vertical synchronizing signal, a control unit configured to control communication with the accessory based on the vertical synchronizing signal, a first terminal configured to send a clock signal generated by the control unit to the accessory, and a second terminal configured to communicate data with the accessory based on the clock signal, in which the control unit controls a signal level at the first terminal to a predetermined level when the communication of the data ends, and then changes the signal level in synchronization with the output of the vertical synchronizing signal.

Abstract: A lubricating oil additive comprising an organic molybdenum compound represented by general formula (1) below: wherein in formula (1), R1 denotes a straight chain or branched chain alkyl group represented by the general formula CnH2n+1 (n is a positive integer) or a cyclohexyl group, R2 denotes a methyl group or an ethyl group, and R1 and R2 are different. The lubricating oil additive is suitable for use as a friction modifier in a lubricating composition and is able to adjust frictional properties to a suitable level.

Abstract: A lubricating oil additive comprising an organic molybdenum compound represented by general formula (1) below: (1) Wherein in formula (1), R1 denotes a straight chain or branched chain alkyl group represented by the general formula CnH2n+1 (n is a positive integer) or a cyclohexyl group, R2 denotes a methyl group or an ethyl group, and R1 and R2 are different. The lubricating oil additive is able to adjust frictional properties to a suitable level.

Abstract: An imaging apparatus to which an accessory is detachably attached includes an imaging unit configured to convert an object image into an electrical signal, a signal generation unit configured to generate a vertical synchronizing signal that is synchronized with a timing of exposure of the imaging unit and output the generated vertical synchronizing signal, a control unit configured to control communication with the accessory based on the vertical synchronizing signal, a first terminal configured to send a clock signal generated by the control unit to the accessory, and a second terminal configured to communicate data with the accessory based on the clock signal, in which the control unit controls a signal level at the first terminal to a predetermined level when the communication of the data ends, and then changes the signal level in synchronization with the output of the vertical synchronizing signal.

Abstract: An imaging apparatus to which an accessory is detachably attached, said accessory including an optical member, includes a signal generation unit configured to generate a vertical synchronizing signal and output the generated vertical synchronizing signal, an imaging unit configured to accumulate charges in synchronization with the vertical synchronizing signal and output an imaging signal, a control unit configured to generate a clock signal and control data communication with the accessory based on the clock signal, a first terminal for sending the clock signal to the accessory, and a second terminal for communicating data with the accessory, in which the control unit, after the data communication via the second terminal, notifies timing at which the vertical synchronizing signal is output using the clock signal via the first terminal by changing a signal level of the first terminal after a lapse of a predetermined time while the signal level is kept at a predetermined level, and controls the accessory to dr

Abstract: Dicyclopentadienyl molybdenum crosslinked complexes which can be represented by general formula (1) below are provided, the use thereof as friction-modifiers and lubricating compositions which contain these compounds are also provided In this formula X is the element oxygen or the element sulphur, Y is the element oxygen or Y is absent, and R1 to R10 are groups selected individually from the group comprising hydrogen, the methyl group and the ethyl group.

Abstract: The present invention provides dicyclopentadienyl molybdenum crosslinked complexes which can be represented by general formula (1) below, the use thereof as friction-modifiers and lubricating compositions which contain these compounds. In this formula X is the element oxygen or the element sulphur, Y is the element oxygen or Y is absent, and R1 to R10 are groups selected individually from the group comprising hydrogen, the methyl group and the ethyl group.

Abstract: The present invention provides novel organic molybdenum compounds, the use thereof as friction-modifiers and lubricating compositions which contain said compounds. The organic molybdenum compounds can be represented by the general formula (1) which is indicated below, wherein A1 and A2 are heterocyclic rings which may have substituent groups.

Abstract: An imaging apparatus to which an accessory is detachably attached includes an imaging unit configured to convert an object image into an electrical signal, a signal generation unit configured to generate a vertical synchronizing signal that is synchronized with a timing of exposure of the imaging unit and output the generated vertical synchronizing signal, a control unit configured to control communication with the accessory based on the vertical synchronizing signal, a first terminal configured to send a clock signal generated by the control unit to the accessory, and a second terminal configured to communicate data with the accessory based on the clock signal, in which the control unit controls a signal level at the first terminal to a predetermined level when the communication of the data ends, and then changes the signal level in synchronization with the output of the vertical synchronizing signal.

Abstract: The present invention provides a molybdenum pentakis-alkylxanthate having general formula (1) which is indicated below. In this formula R1 to R5 each represent a group individually selected from linear chain or branched alkyl groups which have from 1 to 30 carbon atoms.

Abstract: The present invention provides dicyclopentadienyl molybdenum crosslinked complexes which can be represented by general formula (1) below, the use thereof as friction-modifiers and lubricating compositions which contain these compounds. In this formula X is the element oxygen or the element sulphur, Y is the element oxygen or Y is absent, and R1 to R10 are groups selected individually from the group comprising hydrogen, the methyl group and the ethyl group.

Abstract: The present invention provides cyclopentadienyl molybdenum hexa-carbonyl complexes which can be represented by general formula (1) which is indicated below. General Formula (1) In this formula R1 to R10 each individually represent a group selected from the group comprising hydrogen, a methyl group and an ethyl group and may be the same or different.

Abstract: The present invention provides novel organic molybdenum compounds, the use thereof as friction-modifiers and lubricating compositions which contain said compounds. The organic molybdenum compounds can be represented by the general formula (1) which is indicated below, wherein A1 and A2 are heterocyclic rings which may have substituent groups.

Abstract: The present invention provides a molybdenum pentakis-alkylxanthate having general formula (1) which is indicated below. In this formula R1 to R5 each represent a group individually selected from linear chain or branched alkyl groups which have from 1 to 30 carbon atoms.

Abstract: The present invention relates to an ink jet recording apparatus. According to the present invention, in the operating mode wherein a recording operation can be continued even when the amount of ink on which the management process is based is exhausted, when an instruction for performing the recording operation is issued, whether a predetermined operation has been performed using manipulation means provided for the recording apparatus is confirmed, and the recording operation is initiated after the predetermined operation has been performed by a user. Thereby, when the actual amount of ink is exhausted, there is prevented such trouble that the main body of a printer or a recording head would be damaged.

Abstract: The present invention relates to a printhead, a printing apparatus comprising the printhead, and a print control method thereof. The printhead includes a plurality of heating elements and a driving circuit for electrifying and driving the heating elements. The printhead comprises: a shift register for serially inputting digital data, supplied from an external unit, and retaining the data; a counter for counting a clock; a comparator for comparing time-length data, included in the digital data, with a counted value of the counter, and outputting a match signal when a match is found; and a flip-flop circuit for enabling a driving signal in response to a driving start signal supplied from an external unit, and disenabling the driving signal in response to the match signal outputted based on the counted value of the counter from the driving start signal.

Abstract: The present invention relates to an ink jet recording apparatus.

Abstract: The present invention relates to a printhead, a printing apparatus comprising the printhead, and a print control method thereof. The printhead includes a plurality of heating elements and a driving circuit for electrifying and driving the heating elements. The printhead comprises: a shift register for serially inputting digital data, supplied from an external unit, and retaining the data; a counter for counting a clock; a comparator for comparing time-length data, included in the digital data, with a counted value of the counter, and outputting a match signal when a match is found; and a flip-flop circuit for enabling a driving signal in response to a driving start signal supplied from an external unit, and disenabling the driving signal in response to the match signal outputted based on the counted value of the counter from the driving start signal.

Abstract: Disclosed are a printing apparatus and method through which high-quality image printing can be performed at all times even if image data is binarized so as to perform pseudo half tone representation and the binarized image is printed by multi-pass printing. The apparatus performs printing in such a manner that the periodicity of a matrix pattern such as a dither matrix for half tone representation and the periodicity of the matrix of a mask pattern, which is used in multi-pass printing, will not coincide. In a case where printing is carried out by a printhead having a plurality of ink discharge nozzles, the printing apparatus is controlled so that printing is performed by assigning a large number of different nozzles to print the same line.

Abstract: A camera system includes a camera body and a lens in which a motor circuit and an electric circuit are arranged and are supplied with electric power from a power source in the camera body. Ground contact terminals for the motor circuit and the electric circuit are separately arranged in the lens, and the motor circuit and the electric circuit are electrically connected to the power source negative terminal through the separate ground contact terminals.