The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 04, 1995
Filed:
Mar. 20, 1992
Yoshiaki Kawamonzen, Yokohama, JP;
Yasushi Mori, Tokyo, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
Disclosed is an organic nonlinear optical material made of heterocyclic compound which is represented by general formula (I) shown below. ##STR1## wherein Z.sub.1 is O, S, Se, Te, SO.sub.2 group or NR.sub.1 group; Z.sub.2 is N or CR.sub.2 group; Y is O, S or NR.sub.3 group; X is CR.sub.4 R.sub.5 group, NR.sub.6 group, O or S; and R, R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, and R.sub.6 may be identical to or different from each other, and each of them is heterocyclic group, aromatic hydrocarbon group, aliphatic hydrocarbon group or alicylic hydrocarbon group, which may be unsubstituted or substituted, characteristic group or H, where R.sub.4 and R.sub.5 may jointly form a carbocyclic or a heterocyclic ring.