Abstract: A camera is operable while a plurality of accessory apparatuses are connected to the camera. The camera perform first communication for simultaneous communication with the plurality of accessory apparatuses using a data communication channel, and second communication for individual communication with a specific accessory apparatus among the plurality of accessory apparatuses using the data communication channel. In performing the second communication with the plurality of accessory apparatuses by switching between specific accessory apparatuses in a predetermined order within one or more communication periods, at least one of the communication period, a communication speed, a data packet number, a data packet length, and a combination and order of a communication source and a communication destination to be communicated for each communication period is determined based on accessory information acquired from the plurality of accessory apparatuses.

Abstract: A control apparatus for a focus lens includes a processor configured to change, in a case where a position of a magnification varying lens changes during driving of the focus lens, a specified target position of the focus lens to a target position corresponding to the position of the magnification varying lens after a change based on locus information indicating a relationship between the position of the magnification varying lens and a position of the focus lens that is in focus at the position of the magnification varying lens, and change a drive speed of the focus lens so as to reduce a difference between a specified arrival time at which the focus lens is to arrive at the specified target position and calculated arrival time at which the focus lens arrives at the specified target position in the case where the position of the magnification varying lens changes.

Abstract: A camera is operable while connected to a plurality of accessory apparatus. The camera is configured to control communication with the plurality of accessory apparatus using a notification channel for notification with the plurality of accessory apparatus and a data communication channel for data communication with the plurality of accessory apparatus. The camera is configured to perform first communication for simultaneous communication with the plurality of accessory apparatus using the data communication channel, and second communication for individual communication with a specific accessory apparatus among the plurality of accessory apparatus using the data communication channel. The camera is configured to change a content of communication error processing according to a type of error when detecting the error based on information that is used to detect the error included in a data packet in performing the second communication by switching the specific accessory apparatus in a predetermined order.

Abstract: A camera is operable while a plurality of accessory apparatuses are connected to the camera. The camera perform first communication for simultaneous communication with the plurality of accessory apparatuses using a data communication channel, and second communication for individual communication with a specific accessory apparatus among the plurality of accessory apparatuses using the data communication channel. In performing the second communication with the plurality of accessory apparatuses by switching between specific accessory apparatuses in a predetermined order within one or more communication periods, at least one of the communication period, a communication speed, a data packet number, a data packet length, and a combination and order of a communication source and a communication destination to be communicated for each communication period is determined based on accessory information acquired from the plurality of accessory apparatuses.

Abstract: An impact absorbing plate 31 is disposed between a front part 31z of the impact absorbing plate 31 and a vehicle body 11 so that a rupture generating part 44 ruptured by impact is extended in the front and rear direction of the vehicle, and the impact absorbing plate 31 is fixed to a front part 13a and a rear part 13b of the front seat bracket 13 provided in the vehicle body by rivets 33 and 33. A portion of front part 31z of the impact absorbing plate 31 is cut to form a cutoff part 45, and a front end 17a of a rail 17 provided in a seat section is attached to a convex part 35, which is molded so as to expand upward an inner side of the cutoff part 45, by a rivet 34.

Abstract: A rear end collision shock absorbing unit wherein there are provided one-side member rotating in synchronization with either one side of the seat back side and the seat cushion side between members that turn mutually to enable tilting, and the other-side member rotating in synchronization with the other side, and a convex part is provided on the one-side member, a concave part or a through hole in which the convex part fits is provided in the other-side member, and when a rear end collision shock is applied, the convex part and the concave part or through hole are turned relatively and deformed in a fitted state, whereby rear end collision shock energy is absorbed.

Abstract: An impact absorbing plate 31 is disposed between a front part 31z of the impact absorbing plate 31 and a vehicle body 11 so that a rupture generating part 44 ruptured by impact is extended in the front and rear direction of the vehicle, and the impact absorbing plate 31 is fixed to a front part 13a and a rear part 13b of the front seat bracket 13 provided in the vehicle body by rivets 33 and 33. A portion of front part 31z of the impact absorbing plate 31 is cut to form a cutoff part 45, and a front end 17a of a rail 17 provided in a seat section is attached to a convex part 35, which is molded so as to expand upward an inner side of the cutoff part 45, by a rivet 34.

Abstract: Novel derivatives of caffeic acid of the general formula (I): ##STR1## wherein X is hydrogen atom or hydroxy; R.sup.1 is hydrogen atom, a straight or branched alkyl or alkenyl having 1 to 20 carbon atoms or a group of the formula:--(CH.sub.2).sub.n --Z--R.sup.2wherein n is an integer of 1 to 10; Z is oxygen atom, vinylene residue or a single bond; and R.sup.2 is a substituted or unsubstituted phenyl or heterocyclic residue is provided. These derivatives possess 12-lipoxygenase inhibitory activity and are useful for curing and preventing circulatory diseases. A pharmaceutical composition containing said derivtive is also provided.

Abstract: N-substituted 3,4-dihydropyrimidine compounds of the formula: ##STR1## wherein R is straight, branched, cyclic or cyclo-straight alkyl having from one to four carbon atoms; and X.sup.1, X.sup.2 and X.sup.3 are the same or different and are hydrogen, halogen, lower alkyl having from one to four carbon atoms, lower alkoxy having from one to four carbon atoms, nitro, trifluoromethyl, hydroxy, or t-butyldimethylsilyloxy with the proviso that the case wherein X.sup.1, X.sup.2 and X.sup.3 are all hydrogen is not applicable have substantially strong and lasting vasodilative effects. Therefore, the compounds are useful as agents for treating disorders of the cardiovascular system, for example, antihypertensive agents, circulation improver and antianginal agents.

Abstract: 1,4-Dihydropyridine derivatives of the formula (1): ##STR1## wherein X is a halogen; R.sup.1 is a straight, branched or cyclic alkyl group having 1 to 10 carbon atoms, the group --(CH.sub.2).sub.n -Y [where n is an integer of 0 to 8, provided that n is an integer of 2 to 8 when Y is not bonded to COO-- through carbon; Y is a cyclic alkyl group having 3-6 carbon atoms, an aryl group having 6-10 carbon atoms, a pyrrolidinyl group, an imidazolidinyl group, a thienyl group, a furyl group, an imidazolyl group, a pyridyl group, a pyrimidinyl group, a morpholinyl group, a thiomorpholinyl group or a pyrrolizidinyl group, the group ##STR2## (where D is an aryl or aralkyl group having 6-15 carbon atoms which may be substituted by a halogenated alkyl group), or a 3-piperidinyl group substituted by a phenylalkyl group of 7-10 carbon atoms which may be substituted by one or two halogens], the group --(CH.sub.2).sub.