Sumitomo Chemical Company, Limited

Hoya Corporation

Hiromichi Ohta

Satoshi Mitsuda

Takeshi Ishii

Takeshi Sugai

Masahiro Orita

A low-resistance ITO thin film having a resistivity on the order of, or lower than 10 &OHgr;cm, and a method for manufacturing such a film are disclosed. The ITO thin film is manufactured by depositing ITO on a crystalline substrate by pulsed laser deposition, low-voltage sputtering, oxygen cluster beam deposition, chemical vapor deposition, metal organic chemical vapor deposition, metal organic chemical vapor deposition&mdash;atomic layer deposition, or molecule beam epitaxy.

Low-resistance ITO thin film and method for manufacturing such a film

An industrially advantageous production method of an optically active alcohol useful for cosmetics and medical supplies or production intermediates thereof using an esterase having an ability to selectively hydrolyze an optically active sphingoid compound.

Production of optically active sphingoid compound

There is disclosed a process for producing a nucleoside derivative of the formula [I]: ##STR1## characterized by contacting 2',3',5'-O-triacylribonucleoside derivative of the formula [II]: ##STR2## with an ester hydrolase: (i) capable of regio-selectively deacylating the acyl group at 5'-O-position in the formula [II] above, and

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Tokyo, Japan

Hiromichi Ohta