摘要:
A fast telephoto lens has a longer focal length of 300 to 400 mm, and an F-number of about 2.0 to 2.8, which does not utilize a floating mechanism, has a small deviation in aberration when the lens is focused on an object, and has a simple construction for shifting only one lens group. The fast telephoto lens is of internal focusing type and comprises positive, negative and positive lens groups from the object side, and only the negative (second) lens group is shifted to obtain an in-focus state.
摘要:
A zoom lens comprises, in succession from the object side, a convergent first lens unit stationary during zooming and moved on the optical axis during focusing, a divergent second lens unit which is a variator moved on the optical axis during zooming, a divergent third lens unit which is a compensator moved on the optical axis during zooming, and a convergent fourth lens unit as a master lens system stationary during zooming. The fourth lens unit comprises, in succession from the object side, a convergent first master lens unit, a convergent second master lens unit and a divergent third master lens unit. The first master lens unit has, in succession from the object side, a positive lens, a positive and a negative lens cemented to each other in a cemented surface concave toward the object side, a positive lens having its surface of greater curvature facing the object side, and a negative lens having its surface of greater curvature facing the image side. The second master lens unit has a biconvex single lens, and the third master lens unit has at least one negative lens and a positive lens.
摘要:
An electrostatic copying apparatus in which the paper is fed from a cassette. The cassette has a casing for a stack of sheet-like copying papers of at least two different sizes, said casing being a box-like housing having an open top, a closure plate mounted detachably on the top surface of the housing and having at least one display window, and at least two restricting members mounted in spaced-apart relation in the longitudinal direction of the cassette casing so that they can pivot about the axial line of the cassette casing extending in the transverse direction of the cassette casing, each of the restricting members having a restricting portion for restricting the rear end of copying papers to be accommodated in the housing and a display portion having an indication of the size of copying papers, the display portion being positioned adjacent to the display window when the restricting portion is brought to its operative position beneath the closure plate.
摘要:
An object of the present invention is to provide a semiconductor device having a fin-type transistor that is excellent in characteristics by forming a fin-shaped semiconductor portion and a gate electrode with high precision or by making improvement regarding variations in characteristics among elements. The present invention is a semiconductor device including a fin-shaped semiconductor portion having a source region formed on one side thereof and a drain region formed on the other side thereof, and a gate electrode formed between the source region and the drain region to surround the fin-shaped semiconductor portion with a gate insulating film interposed therebetween. One solution for solving the problem according to the invention is that the gate electrode uses a metal material or a silicide material that is wet etchable.
摘要:
A rechargeable battery reducing internal resistance and equalizing the distribution of current flow in an electrode plate assembly. A plurality of battery jars are connected to one another through partition walls. A power generation element including an electrode plate assembly, in which a cathode plate and an anode plate are stacked together with a separator arranged in between, and collector plates joined to opposite ends of the electrode plate assembly are accommodated in each battery jar. The collector plates on opposite sides of the partition wall formed between two adjacent battery jars are connected to each other. Connection holes are formed in the partition wall at a plurality of locations. Connection projections, which project from the collector plates, are fitted into the connection holes and welded. The connection projections have distal ends that are in contact with each other.
摘要:
The present invention provides a method for detecting modified LDL, abnormal cells or bacteria using an intermolecular interaction analysis method, in which a region involved in ligand recognition by a receptor is expressed, without modification or as a biotinylated protein, in cells or in a test tube, and thereafter, the expressed region or the expressed biotinylated protein is immobilized via avidin or streptavidin to a solid phase while the orientation thereof is maintained, and the immobilized protein is utilized; and a kit for detecting the modified LDL or the like.
摘要:
Provided are a semiconductor device comprising a polymetal gate electrode that can prevent formation of a silicide layer at the interface between metal and conductive silicon and also exhibit low resistance property and ohmic property, and a method for manufacturing the same. Specifically, a polymetal gate electrode is formed via a gate insulating film (2), e.g., an oxide film, on a semiconductor substrate (1), e.g., a silicon substrate. The polymetal gate electrode has such a structure that a conductive silicon film (3), e.g., a poly-Si film, a silicide film (4), e.g., a WSi film, a barrier film (5), e.g., a WSiN film, and a metal film (6), e.g., a W film, are stacked over the semiconductor substrate (1) in the order named.
摘要:
A method of circulating data between servers while updating the data between the servers includes the steps of downloading registered data having a first access key attached thereto from a source server to a client, the first access key including a server identifier of the source server and a first user identifier of a user who registered the registered data, uploading a file from the client to a destination server, the file including updating data and the registered data having the first access key attached thereto, comparing, in the destination server, the registered data and the first access key uploaded from the client with the registered data and the first access key that are obtained from the source server in response to a request sent from the destination server to the source server, and registering the file in the destination server if the comparison gives a match.
摘要:
Disclosed herein is a communication module, comprising a semiconductor chip in which channels for allowing signal converting means to convert current signals inputted from input terminals to voltage signals and outputting the same from output terminals respectively are arranged in parallel in plural form, and wherein the semiconductor chip is comprised principally of a semiconductor substrate in which a second semiconductor layer is provided on a first semiconductor layer with an insulating layer interposed therebetween, each of the signal converting means is formed in a channel forming region of the second semiconductor layer, which is defined for each channel, and the input and output terminals are formed on the channel forming regions of the second semiconductor layer with the insulating layer interposed therebetween. In the communication module, the first semiconductor layer is formed with resistivity smaller than that of the second semiconductor layer and fixed to a fixed potential, whereby the amount of transfer of noise power developed through the substrate can be lessened and crosstalk developed between adjacent channels can be reduced.
摘要:
The present invention relates to polynucleotides encoding particular N-acetylmuramidases, which are cell wall lytic enzymes, of Streptomyces rutgersensis origin. The invention also relates to vectors comprising the polynucleotides encoding the N-acetylmuramidases, and also relates to host cells transformed with the vectors.