摘要:
A two-component developer includes a toner containing toner particles with a volume diameter of 8 &mgr;m or less, and a carrier containing carrier particles, each carrier particle including at least one core particle and a carrier core coating layer, the carrier core coating layer being made of a silicone resin and a silicone oil, the carrier having a fluidity of 45 seconds or less.
摘要:
The present invention relates to a method of degrading organic sulfur compounds, in which organic sulfur compounds are decomposed by a microorganism belonging to the genus Paenibacillus and having the ability to decompose organic sulfur compounds. Heterocyclic sulfur compounds can be decomposed by specifically cleaving their C--S bonds under high-temperature conditions.
摘要:
The present invention provides a flame-retardant resin composition comprising 100 parts by weight of a bromine-containing copolymer composition containing 1 to 40% by weight of bromine, and comprising 0 to 30 parts by weight of a flame-retarding adjuvant and 0.5 to 30 parts by weight of a polyorganosiloxane-reinforced resin component obtained by polymerizing a vinyl monomer (d) in the presence of a polyorganosiloxane polymer. The flame-retardant resin composition of the present invention has attained a remarkably higher flame retardancy by the inclusion of a polyorganosiloxane-reinforced resin. A significant improvement in the dripping phenomenon has also been achieved. Further, this composition exhibits superior impact resistance and moldability, and a superior outer appearance in the formed products.
摘要:
In an electrophotographic or electrostatic image forming device, the toner concentration of a two-component developer, i.e., a mixture of toner and carrier is measured on the basis of an output of a magnetic bridge type concentration sensor responsive to the magnetic permeability of the developer. The sensor has a surface whose mean roughness along the center line is less than 0.4 .mu.m Ra.
摘要:
A hybrid upstream regulatory sequence including an upstream regulatory sequence of E. coli origin and yeast upstream regulatory sequence, which hybrid upstream regulatory sequence can function in a yeast cell; a hybrid promoter including the regulatory sequence of E. coli origin and a TATA region of a yeast promoter, which hybrid promoter can also function in a yeast cell; a hybrid promoter including the upstream regulatory sequence of E. coli origin and a yeast promoter, which hybrid promoter can function in a yeast cell; and a plasmid useful for a test of an upstream regulatory sequence, including a TATA region of a yeast promoter, a structural gene containing a translation start codon, and a yeast origin of replication.
摘要:
A flame retardant resin composition which includes the following component (A) and component (B) blended in the ratio (A):(B)=100:1-40 parts by weight. Component (A) is a thermoplastic resin including 0-70% by weight of a rubber component and 100-30% by weight of a polymer component formed from monomers comprising a methylated aromatic vinyl monomer and an hydroxylated aromatic vinyl monomer and, optionally, an aromatic vinyl monomer other than the above monomers, a cyanated vinyl monomer, a (meth)acrylic acid ester monomer, maleic anhydride, and a maleimide monomer; graft ratio of the thermoplastic resin being 10-150% when the rubber component is used. Component (B) is a flame retarder.
摘要:
A method and apparatus for eliminating electric charges in a clean room is disclosed involving removing fine and superfine grains from air in the clean room, and generating ions in the thus purified air inside the room.
摘要:
An ionizer having a pair of electrodes for generating ions by corona discharge when a pulsed DC voltage is applied thereto, wherein each electrode is covered with a microporous glass tube. Release of fine particles is thereby substantially eliminated, the generation of ions not being decreased.
摘要:
There is provided a tracking servo apparatus of a disk player comprising: off-track detecting means for detecting that an information reading spot of a pickup does not exist on an information recording track of a disk and for generating an off-track signal; and level control means for increasing an amplitude of a tracking error signal when the off-track signal exists, whereby the stable tracking servo operation can be executed.
摘要:
A method of and apparatus for determining a position of a working original point at which working characteristics of a multi-joint manipulator are at optimum. According to the method and apparatus, a working point at which a hand mounted on the multi-joint manipulator works and a workspace needed for the work are assigned. Subsequently, a set of positions of the working original point of the multi-joint manipulator at which the hand may reach the workspace is calculated. Also, values of evaluation functions representative of preference of the working characteristics of the multi-joint manipulator are calculated with respect to the respective positions of the set. Then, the values of the evaluation functions are compared with each other, thereby selecting the position of the working original point at which the working characteristics are at optimum.