摘要:
A vehicle-use bearing device having a double row rolling bearing fitted around an outer peripheral surface of a hollow shaft portion of a hub wheel, wherein a held portion between an axially intermediate position and a vehicle outer side in the hollow shaft portion of the hub wheel is axially held between the axially intermediate position of an outer ring shaft portion of a constant velocity joint and the vehicle outer side so that a cup-shaped cylindrical portion of an outer ring of the constant velocity joint is free of contact with a caulked portion in the hollow shaft portion of the hub wheel at the shaft end on the vehicle inner side in order to connect the hub wheel with the constant velocity joint without a clearance, whereby an excessive preload which can affect a rolling performance of the double row rolling bearing is not imparted on the bearing.
摘要:
A stably storable and readily water soluble composition for use in preparing injections and containing Cefditoren, namely a cephalosporin of the formula ##STR1## is now provided, which composition comprises a physical mixture of Cefditoren or a non-toxic salt thereof with a proportion of arginine and/or lysine and/or a non-toxic salt thereof. This new composition of Cefditoren can be stored for long periods of time without discoloration and without undesirable reduction in the antibacterial activity, and the composition can be dissolved completely and quickly in water.
摘要:
A cherry tree rootstock characterized by wide and strong root anchorage, easy vegetative propagation, a thicker shoot and a harder root than the known variety "Colt", a more compact tree shape and darker green leaves than the Colt variety, and a hexaploid (2n=48) chromosome structure as compared to the triploid (2n=24) chromosome structure in the Colt variety.
摘要:
It is possible to produce oseltamivir safely and stably in large quantities by using as a starting material tartaric acid, mannitol or arabinose, via dihydroxyhexenoic acid ester of the formula (4c): (wherein R1, R2 and R6 are same or different and are each alkyl, aryl, substituted aryl, aralkyl, substituted aralkyl or aromatic heterocyclic group, and R1 and R2 are not methyl simultaneously).
摘要:
A heterocyclic compound useful as an antiallergic agent is provided.A compound represented by the following formula (1) or a salt thereof: wherein the ring A is a homocyclic or heterocyclic ring; the ring B is a heterocyclic ring which contains G and nitrogen atom N as constituent atoms thereof, wherein G is CH or N; R1 is a carbonyl group or an alkylene group; R2a and R2b are an alkyl group, a cycloalkyl group, an aryl group, or a heterocyclic group; X is an oxygen atom or a sulfur atom; Z is a hydroxyl group, an alkoxy group, a cycloalkyloxy group, an aryloxy group, an aralkyloxy group, an amino group, or an N-substituted amino group; and n is 0 or 1; with the proviso that when the ring A is a benzene ring or when the ring B is a piperazine ring, R1 is an alkylene group which may have a substituent.
摘要:
This invention provides thienopyrimidine derivatives of the formula, wherein R1 stands for hydrogen atom, an alkyl group or the like; R2 stands for a hydrogen atom, an alkyl or amino group or the like, R3 stands for an alkyl, alkenyl or alkylthio group or the like or a group Y—X—; or R2 and R3 may together form tetramethylene group; X standing for a direct bond or linking group such as CH2, CH(OH), S, O, NH; Y standing for a substituted or unsubstituted aromatic carbocycylic, aromatic heterocylic, cycloalkyl or saturated heterocyclic group or the like; Z stands for S or O, and n is 0 or an integer of 1 to 4, or salts thereof, which exhibit an inhibitory effect on PDE9, and are therefore useful for prevention or treatment of overactive bladder syndrome, pollakiuria, urinary incontinence, dysuria associated with prostatic hyperplasia, urolithiasis, Alzheimer's disease, chronic obstructive pulmonary disease, myocardial infarction, thrombosis, diabetes and the like.
摘要:
It is possible to produce oseltamivir safely and stably in large quantities by using as a starting material tartaric acid, mannitol or arabinose, via dihydroxyhexenoic acid ester of the formula (4c). (wherein R1, R2 and R6 are same or different and are each alkyl, aryl, substituted aryl, aralkyl, substituted aralkyl or aromatic heterocyclic group, and R1 and R2 are not methyl simultaneously)
摘要:
The invention discloses quinazoline derivatives or salts thereof, which possess PDE9-inhibiting activity and are useful as treating agents of dysuria and the like, the derivatives being represented by the formula (I) in the formula, R1 stands for phenyl or aromatic heterocyclic group which are optionally substituted with 1-3 substituents selected from halogen, C1-6 alkyl, C1-6 haloalkyl containing 1-6 halogen atoms and C1-6 alkoxy; and n is an integer of 1-3.
摘要:
A data flow graph processing method divides a program describing target operations into two or more subprograms and converts each of the two or more subprograms into a data flow graph (DFG) representing dependency in execution between operations carried out in sequence. Also generated is flow data indicating the order of execution of DFGs corresponding to respective subprograms. DFGs are converted into configuration data and the flow data is converted into control data.
摘要:
A semiconductor laser device includes: a substrate of a first conductivity type; a laminated body of a nitride semiconductor provided on the substrate and including at least an active layer and a cladding layer, the cladding layer being of a second conductivity type and having a ridge-shaped waveguide; a first film provided on one end surface of an optical resonator composed of the laminated body, the first film having a reflectance of 40% or more and 60% or less; and a second film provided on the other end surface of the optical resonator and having a higher reflectance than the first film. The optical resonator has a length of 400 μm or less. The one end surface serves as a light emitting surface.