Japan Science and Technology Agency

Nidec Corporation

Kyoto University

Kazuo Tanaka

Isao Saito

Akimitsu Okamoto

Tomohiro Hasegawa

Yoshiki Chujo

Seung-Sin Yoo

Atsushi Mukai

Shunji Matsumoto

Takuro Kawano

Yuji Katsurayama

Noriaki Yamamoto

Kensuke Naka

A centrifugal fan includes an impeller, a motor portion, and a housing. The housing includes an upper plate portion, a lower plate portion arranged to have the motor portion fixed thereto; and a side wall portion. A flow control member is arranged to extend in a line along a boundary between an inside surface of the side wall portion and one of a lower surface of the upper plate portion and an upper surface of the lower plate portion. The flow control member includes a flow control surface arranged to extend radially outward from the one of the lower surface of the upper plate portion and the upper surface of the lower plate portion to the inside surface of the side wall portion while becoming more distant from the one of the lower surface of the upper plate portion and the upper surface of the lower plate portion.

Centrifugal fan having a flow control member

The present invention provides a contrast agent which ensures 1) high contrast performance, 2) low toxicity, and 3) a simple production process. The present invention provides a contrast agent containing a silsesquioxane represented by General Formula (I),   

Contrast agent containing silsesquioxane

A method of easily releasing a useful substance bonded to oligonucleotide without impairing a target nucleic acid; and a novel base therefore. A nucleoside of nucleotide (oligonucleotide containing thereof) represented by the formula (I) (wherein each of X and Y independently represents &#x2014;O&#x2014;, &#x2014;NH&#x2014;, &#x2014;N(alkyl)- or &#x2014;S&#x2014;; R represents a functional unit, a reporter unit or a biofunctional molecule; each of Rand Rindependently represents a hydrogen atom, a phosphate bond group, a phosphoramidite group or a nucleotide; and n is a numeral of 1 to 10). There is further provided a method of releasing the R group moiety at base portion by the use of the oligonucleotide comprising the nucleotide.

Nucleoside releasing functional unit through oxidation and process for producing oligonucleotide containing thereof

A nucleic acid base for hole transportation in DNAs which does not cause oxidative decomposition; and an artificial DNA molecule which can realize effective hole transportation in DNAs while maintaining the double spiral structure of the DNAs. Provided are: a nucleic acid which contains a benzodeazaadenine derivative base represented by the general formula (I): (wherein R, R, R, R, R, and Reach independently represents hydrogen, amino, mono (lower alkyl) amino, di (lower alkyl) amino, hydroxy, lower alkoxy, halogeno, cyano, mercapto, lower alkylthio, or aryl; and Rand Reach independently represents hydrogen or a group bonded to phosphoric acid);

Benzodeazaadenine derivative base and electronic material containing the same

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Kyoto, Japan

Kazuo Tanaka