Teijin Limited

Nichirei Corporation

Satoshi Yamamoto

Kiyoshi Sugie

Takayoshi Numata

En Lai Zhang

Hiroshi Nakagawa

Takeshi Itoh

Takeshi Koizumi

To prepare high-performance specific gene-amplification primers for detecting, quantitatively determining or identifyinghaving low possibility of mis-identification and practically sufficient amplification efficiency and amplification specificity. We have determined the nucleotide sequences of rpoD genes encoding RNA polymerase &#x3c3;70 factor of type strains of the genusand of stock strains of(strains containing and those not containing toxin gene); elucidated the phylogenetic relation, and identified nucleotides which are characteristic inthereby enabling the design of probes containing them and having high specificity, and primers for gene amplification having high specificity and excellent amplification efficiency.

[object Object]

The present invention relates to a silicon wafer carrier consisting of a composition composed of (a) 100 parts by weight of a polyester, (b) 5 to 100 parts by weight of a polyether ester amide, (c) 10 to 2,500 ppm (based on the polyether ester amide) of an alkaline metal and (d) 0 to 40 parts by weight of a modified polyolefin, generating not more than 10 ppm of volatile gas by the heat-treatment at 150&deg; C. for 60 minutes and eluting not more than 10 ppm of the alkaline metal by the immersion treatment in pure water at 80&deg; C. for 120 minutes. The silicon wafer carrier has the generation of volatile gas and the elution of metal suppressed to an extent not to essentially cause the surface contamination of a silicon wafer and is provided with excellent permanent antistaticity and high mechanical properties and heat-resistance.

Silicon wafer carrier

Growing community of inventors

Chiba, Japan

Satoshi Yamamoto