1
Kazuyuki Kasuga, Takuji Hirose, Toshikazu Takahashi, Kazuhisa Hiratani: .alpha.-Amino acid diamide and use thereof as cupric ion-transporting ionophore. Director General of Agency of Industrial Science and Technology, Lorusso & Loud, January 26, 1993: US05182398 (2 worldwide citation)

A diamine derivative expressed by the following general formula (I): ##STR1## wherein R.sup.1 and R.sup.2 stand, independently from each other, for a hydrogen atom, an alkyl group, an aralkyl group or an aryl group. The diamide derivative is useful as an ionophore which can selectively transport cup ...


2
Nobuko Komatsuzaki, Ryuzi Katoh, Yuichiro Himeda, Hideki Sugihara, Hironori Arakawa, Kazuyuki Kasuga: Ruthenium complex having di or tetrapyridophenazine ligand useful for use as luminescent material. Secretary of Agency of Industrial Science and Technology, September 11, 2001: US06288229 (2 worldwide citation)

A ruthenium (II) complex having a dipyridophenazine or tetrapyridophenazine ligand and being represented by the formula (1) or (2) shown in the specification. Upon absorption of light, the complex emits fluorescence for a longer life time in a protic solvent as compared with known analogous compound ...


3
Kazuhisa Hiratani, Hideki Suigihara, Kazuyuki Kasuga: Method of selectively separating lead ions. Director General of Agency of Industrial Science and Technology, Lorusso & Loud, May 2, 1995: US05411667 (1 worldwide citation)

A method of selectively separating lead ions from metal ions-containing aqueous liquid by contact with a solution containing a polyether derivative dissolved in a water-insoluble organic solvent and serving as an ionophore or carrier for lead ions. The polyether derivative is a compound expressed by ...


4
Kazuhisa Hiratani, Toshikazu Takahashi, Kazuyuki Kasuga, Hideki Sugihara: Bisquinolinol and bisbenzoquinolinol compounds, and process for producing same. Director General of Industrial Science and Technology, Lorusso & Loud, February 4, 1997: US05599935 (1 worldwide citation)

A bisquinolinol or bisbenzoquinolinol compound is disclosed which has the formula CH.sub.2 .dbd.C(CH--R.sup.1).sub.2 wherein R.sup.1 represents a 8-hydroxy-7-quinolyl group which may have an alkyl group at the 2-position thereof or a 10-hydroxy-9-benzoquinolyl group which may have an alkyl group at ...


5
Takuji Hirose, Kazuyuki Kasuga, Hideki Sugihara, Yuichiro Himeda, Zhen He Wang, Bruce Baldwin: Cyclohexane tricarboxylic acid derivative and method for the preparation thereof. Japan represented by Director General of Agency of Industrial Science and Technology, Wenderoth Lind & Ponack, March 3, 1998: US05723650 (1 worldwide citation)

Disclosed is a novel compound having activity as an ionophore for ion transport, which is a monoester or monoamide of 1,3,5-trimethyl-1,3,5-cyclohexane tricarboxylic acid, i.e. Kemp's triacid or the stereoisomer thereof, the group R in the ester group --COOR or in the amide group --CONHR being an ar ...