Abstract: Phosphine compounds represented by the following formula (1): wherein R1, R2, R3, R4, R5, R6 and R7 represent substituents, and asymmetric synthesis catalysts containing transition metal phosphine complexes with the compounds contained as ligands therein. The novel phosphine compounds according to the present invention are useful especially as ligands in transition metal complexes. The transition metal phosphine complexes are useful as catalysts for asymmetric synthetic reactions. The novel phosphine compounds useful as ligands can be prepared by a relatively economical preparation process. Further, use of these catalysts can afford hydrogenated products with high optically purity and is also extremely useful from the industrial standpoint.

Abstract: An encryption/decryption unit includes a first data encryption/decryption section for performing an encryption or decryption process, a first data substitution section for performing data substitution of an output from the first encryption/decryption section according to a predetermined permutation table, a second data encryption/decryption section for performing an encryption or decryption process for an output from the first data substitution section, a second data substitution section for performing data substitution of an output from the second data encryption/decryption section according to a predetermined permutation table, and a third data encryption/decryption section for performing an encryption or decryption process for an output from the second data substitution section.

Abstract: Phosphine compounds represented by the following formula (1): wherein R1, R2, R3, R4, R5, R6 and R7 represent substituents, and asymmetric synthesis catalysts containing transition metal phosphine complexes with the compounds contained as ligands therein. The novel phosphine compounds according to the present invention are useful especially as ligands in transition metal complexes. The transition metal phosphine complexes are useful as catalysts for asymmetric synthetic reactions. The novel phosphine compounds useful as ligands can be prepared by a relatively economical preparation process. Further, use of these catalysts can afford hydrogenated products with high optically purity and is also extremely useful from the industrial standpoint.

Abstract: IC card receiving power from terminal and performing process, IC card comprises storage storing first identification information uniquely assigned to IC card, acquisition unit acquiring second identification information from terminal, first timer including first change unit whose state changes with lapse of time without power, state of first change unit changing from first initial state to final state via intermediate state, first timer outputting first signal indicative of changed state of first change unit when IC card receives power, comparison unit comparing second identification information with first identification information, determining whether second identification information and first identification information are identical, and providing first initializing signal according to at least one of determined results, and controller initializing first change unit to first initial state when receiving first initializing signal, controller further controlling IC card to make it inhibit process until stat

Abstract: A method for brazing two or more of stainless steel components for use in medical equipment, in which one component is joined to other component using a brazing material containing Au of which amount is 62.5 wt % or higher, the method comprising the steps of: a first step in which the components are subjected to a heat treatment at a temperature of 1,050 to 1,200° C. in a hydrogen containing atmosphere or in a vacuum; a second step in which one of the components is allowed to close to the other component so as to form a gap therebetween; and a third step in which the brazing material in a molten state is supplied into the gap to join the components together to manufacture a metal assembly. The joint portions formed in the metal assembly have excellent chemical resistance and corrosion resistance, and thus the metal assembly is suitably used in an endoscope.

Abstract: A blow-off nozzle type bathtub with illumination according to the present invention comprises a cap having a plurality of nozzles for blowing off a fluid and for irradiating an illumination light in a head portion and having an inside thereof formed in a hollow shape, a fluid supply member having a distal end opening portion thereof connected to the hollow inside of the cap and a proximal end opening portion thereof connected to a fluid supply source which is subjected to a drive control, a light guide member which has an end surface of a distal end portion thereof directed to said hollow inside of said cap and an end surface of a proximal end portion thereof directed to an illumination light source which is subjected to a drive control, and a fixing member for fixing and supporting the fluid supply member and the light guide member on a bottom wall of a bathtub vessel on a plurality of nozzles which are formed in the bottom wall of the bathtub vessel as through holes.

Abstract: IC card receiving power from terminal and performing process, IC card comprises storage storing first identification information uniquely assigned to IC card, acquisition unit acquiring second identification information from terminal, first timer including first change unit whose state changes with lapse of time without power, state of first change unit changing from first initial state to final state via intermediate state, first timer outputting first signal indicative of changed state of first change unit when IC card receives power, comparison unit comparing second identification information with first identification information, determining whether second identification information and first identification information are identical, and providing first initializing signal according to at least one of determined results, and controller initializing first change unit to first initial state when receiving first initializing signal, controller further controlling IC card to make it inhibit process until stat

Abstract: There is provided a data processor wherein a plain text is encrypted to a cipher text by using a encryption key and/or a cipher text is decrypted to a plain text by using a decryption key, which device is constructed of a plurality of key conversion functions fk sequentially connected, which each are an involution type, and which conduct key conversion processing and output extended keys based on the key for encryption or decryption, or key conversion results, a key conversion section in which the key conversion results are sequentially transferred between the key conversion functions in the order or the reverse order, a plurality of round functions fr sequentially connected, which are an involution type, and which conducts encryption and/or decryption by using extended keys, and a data randomize section in which processing results in the round functions fr are sequentially transferred between the round functions fr in the order or the reverse order.

Abstract: IC card receiving power from terminal and performing process, IC card comprises storage storing first identification information uniquely assigned to IC card, acquisition unit acquiring second identification information from terminal, first timer including first change unit whose state changes with lapse of time without power, state of first change unit changing from first initial state to final state via intermediate state, first timer outputting first signal indicative of changed state of first change unit when IC card receives power, comparison unit comparing second identification information with first identification information, determining whether second identification information and first identification information are identical, and providing first initializing signal according to at least one of determined results, and controller initializing first change unit to first initial state when receiving first initializing signal, controller further controlling IC card to make it inhibit process until stat

Abstract: An information distributing program, a computer-readable recording medium recorded with the information distributing program, an information distributing apparatus and an information distributing method, capable of flexibly coping with various connecting terminals without processing the contents accumulated in information sources, by providing a mechanism for dynamically converting the contents created in arbitrary formats according to connecting terminals.

Abstract: An encryption/decryption unit includes a first data encryption/decryption section for performing an encryption or decryption process, a first data substitution section for performing data substitution of an output from the first encryption/decryption section according to a predetermined permutation table, a second data encryption/decryption section for performing an encryption or decryption process for an output from the first data substitution section, a second data substitution section for performing data substitution of an output from the second data encryption/decryption section according to a predetermined permutation table, and a third data encryption/decryption section for performing an encryption or decryption process for an output from the second data substitution section.

Abstract: A semiconductor integrated circuit driven by an external power, comprises a change unit whose state changes with lapse of time without the external power, an output unit configured to output a signal in response to an instruction issued when the external power is supplied, the signal indicating a change of the state of the change unit, and an execution unit configured to execute a process in response to the signal. Therefore, the circuit is capable of utilizing time-point/time-period information even if they are not supplied with power.

Abstract: A method of setting validity period of IC card, comprises preparing IC card including change unit whose state changes with lapse of time starting from initial state without external power, measuring unit configured to measure state of change unit so as to generate information indicating whether or not validity period has elapsed, and operation unit configured to be operable if information indicates that validity period fails to have yet elapsed, and to be inoperable if information indicates that validity period has elapsed, preparing IC card case capable to house IC card by user, IC card case including identification unit configured to determine whether or not user is legitimate, performing user identification utilizing identification unit, when IC card is housed in IC card case, and transmitting signal to change unit in IC card depending on result of user identification, signal initializing change unit to initial state.

Abstract: There is provided a data processor in which a plain text or a cipher text is segmented into two or more small blocks, the small blocks are each data-processed one small block as a unit to transform to a new small blocks and then the new small blocks are encrypted or decrypted. The data processor comprises transformation means F for transforming small blocks with keys, mutual action means for causing a mutual action to a pair of a small block which has been transformed by the transformation means and another small block, chaining means for chaining small blocks. With the data processor, even when a block length in encryption is short, high transmission efficiency can be enjoyed and Feistel type cryptosystem can be realized while preventing reduction in a degree of security due to shortness of a block length.

Abstract: IC card receiving power from terminal and performing process, IC card comprises storage storing first identification information uniquely assigned to IC card, acquisition unit acquiring second identification information from terminal, first timer including first change unit whose state changes with lapse of time without power, state of first change unit changing from first initial state to final state via intermediate state, first timer outputting first signal indicative of changed state of first change unit when IC card receives power, comparison unit comparing second identification information with first identification information, determining whether second identification information and first identification information are identical, and providing first initializing signal according to at least one of determined results, and controller initializing first change unit to first initial state when receiving first initializing signal, controller further controlling IC card to make it inhibit process until stat

Abstract: Phosphine compounds represented by the following formula (1): 1