摘要:
A method for manufacturing an optical element, such as a plastic lens or similar, by molding. The manufacturing method includes the steps of molding the plastic lens under a prescribed molding temperature higher than a glass transition level of the plastic material used to from the optical element. The manufacturing method also includes the step of gradually cooling the optical element by at least 5° C. with a speed which decreases by approximately 3° C. per minute. The optical element formed from a plastic material includes a substantially rectangular shape having a width, a height, and a thickness, wherein the width is greater than the height and the thickness is measured in an optical axis direction. The optical element also includes a refractive index distribution of approximately 2×10−5 at a central half section of the height. The optical element may be defined by the manufacturing method having the molding step and the gradual cooling step. The apparatus used to manufacture the optical element includes a molding device for molding the optical element under a prescribed molding temperature higher than a glass transition level of the plastic material forming the optical element and a device for gradually cooling the optical element.
摘要:
Polymers comprising recurring units of an acrylic derivative of fluorinated backbone represented by formula (1) are novel. R1, R2 and R3 are independently H, F, C1-20 alkyl or fluorinated C1-20 alkyl, at least one of R1, R2 and R3 contains fluorine, and R4 is a hydrophilic group. Using the polymers, chemical amplification positive resist compositions featuring low absorption of F2 excimer laser light are obtained.
摘要:
A polymer having fluorinated vinyl phenol units copolymerized with acrylonitrile units has high transmittance to VUV radiation. A resist composition using the polymer as a base resin has high sensitivity and resolution to high-energy radiation and good plasma etching resistance and is suited for lithographic microprocessing.
摘要:
A rotary assembly for traction drives, including a plurality of rolling elements having a rotation axis and traction contact surfaces around the rotation axis and associating with each other to transmit a motive power between the rolling elements via a traction oil film formed between the traction contact surfaces, in which at least one of the traction contact surfaces has a microstructure with irregularities which sizes are larger than a thickness of the traction oil film. The process for the traction contact surface is also disclosed.
摘要:
Onium salts of arylsulfonyloxybenzenesulfonate anions with iodonium or sulfonium cations are novel. A chemically amplified resist composition comprising the onium salt as a photoacid generator is suited for microfabrication, especially by deep UV lithography because of many advantages including improved resolution, improved focal latitude, minimized line width variation or shape degradation even on long-term PED, minimized debris after coating, development and peeling, and improved pattern profile after development.
摘要:
A rear body structure of a vehicle having a floor panel, a pocket provided on the floor panel for accommodating a spare tire assembly therein and a seat disposed above the pocket includes a reinforcement member hingedly connected with the floor panel and covering at least a part of the opening of the pocket for preventing the spare tire assembly from moving, a seat fixing section provided on the reinforcement member for detachably fixing the seat, and a seat belt anchoring section provided on the reinforcement member for anchoring an end portion of a seat belt.
摘要:
A toroidal-type continuously variable transmission (CVT), including rolling elements having traction surfaces cooperating with each other to transmit a power between the rolling elements via a traction oil film formed between the traction surfaces. The traction surfaces have the microstructure that is defined with respect to a thickness of the traction oil film formed when the temperature of the traction portion of the traction surface is high, to thereby exhibit high traction coefficient even in the high-temperature operating condition.
摘要:
Polymers comprising recurring units of formula (1) and recurring units having acid labile groups are novel. At least one of R1 and R2 is fluorine or a trifluoromethyl group, and the remainder is hydrogen or a C1-20 alkyl, R3 and R4 each are hydrogen or an unsubstituted or fluorine-substituted C1-20 alkyl, or R3 and R4 may form a ring. Using such polymers, resist compositions featuring transparency to excimer laser light and alkali solubility are obtained.
摘要:
A synchronous semiconductor memory device for switching an output route of read data based on latency information includes a read amplifier, a register block, a first signal route, a second signal route, and a switching circuit. The read amplifier amplifies the data read from a memory cell. The register block latches the amplified data and outputs the latched data at a timing corresponding to latency information. The first signal route is connected to the read amplifier to bypass the register block. The second signal route is connected to the read amplifier via the register block. The switching circuit is connected to the first and second signal routes and outputs either the amplified data or the latched data.
摘要:
The present invention relates to a method for preparing lactone polymers, carbonate polymers, lactone-carbonate block copolymers and lactone-arbonate random copolymers via a ring-opening addition reaction of a lactone monomer, a cyclic carbonate monomer or a mixture thereof using an initiator and in the presence of a specific titanium-type Lewis acid catalyst. The resulting polymers have a molecular weight distribution (Mw/Mn) approximately equal to 1 or a extremely high purity of single-structure components. The polymer molecules range in an oligomer region to a molecular weight of approximately 200,000. The present invention also relates to a method for preparing lactone polymers, carbonate polymers and lactone-carbonate copolymers having a narrow molecular weight distribution and which can be obtained via a continuous polymerisation of a lactone monomer and/or a cyclic carbonate monomer using an initiator in an extruder in the presence of a specific titanium-type Lewis acid catalyst or an aluminium-type Lewis acid catalyst. The present invention also relates to these resulting polymers.