Patent US359424A successfully refreshed from Google Patents.
← Back to Patent Explorer
US5045239A Expired / Lapsed US ⏱️ 0.0 years remaining

Non-linear optical material

Assignee: NOF Corp
•
Filing: 1988-07-22
•
Granted: 1991-09-03
•
Expires: 2008-07-22
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A non-linear optical material comprises a derivative of chalcone represented by the following general formulae (I) or (II) of: ##STR1## wherein R 1 and R 2 each represent a halogen atom, a hydroxyl group, an amino group, a dimethylamino group, a nitro group, a cyano group, a phenyl group, an acetyl group, an alkyl group having 1 to 18 carbon atoms or an alkyloxy group having 1 to 22 carbon atoms; n 1 and n 2 each represent an interger of from 0 to 21; and m 1 and m 2 each represent an integer of from 0 to 5.

Inventors

  • 👤 Seizo Miyata
  • 👤 Toshiyuki Watanabe
  • 👤 Yoshitaka Goto
  • 👤 Akio Hayashi
  • 👤 Masaharu Nakayama

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 18:04
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/35; G02F1/355; G02F1/361; G02F1/3613

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 100 words
In a non-linear optical device in which an organic compound is disposed in a light beam, the improvement in which the organic compound is a derivative of chalcone represented by the following general formula ##STR48## wherein R 1 is a halogen atom, a hydroxyl group, an amino group, a dimethylamino group, a nitro group, a cyano group, a phenyl group, an alkyl group having 1 to 18 carbon atoms or an alkyloxy group having 1 to 22 carbon atoms; n 1 is an integer of from 0 to 21; and m 1 is an integer of from 0 to 5.
Claim 2
Dependent Claim 100 words
In a non-linear optical device in which an organic compound is disposed in a light beam, the improvement in which the organic compound is a derivative of chalcone represented by the following general formula ##STR48## wherein R 1 is a halogen atom, a hydroxyl group, an amino group, a dimethylamino group, a nitro group, a cyano group, a phenyl group, an alkyl group having 1 to 18 carbon atoms or an alkyloxy group having 1 to 22 carbon atoms; n 1 is an integer of from 0 to 21; and m 1 is an integer of from 0 to 5.
Claim 3
Dependent Claim 48 words
The non-linear optical device as claimed in claim 1, wherein said derivative of chalcone is selected from the group consisting of 4methylthiochalcone, 4-methylthio-4'-chlorochalcone, 4-methylthio-4'-bromochalcone, 4-methylthio-4'-hydroxychalcone, 4-methylthio-4'-aminochalcone, 4-methylthio-4'-nitrochalcone, 4-methylthio-4'-dimethylaminochalcone, 4-methylthio-4'-methoxychalcone, 4-methylthio-4'-ethoxychalcone, 4-methylthio-4'-octadecyloxychalcone, 4-methylthio-3'-bromochalcone, 4-methylthio-3'-nitrochalcone, 4-methylthio-4'-fluorochalcone, 4-methylthio-3'-chlorochalcone, 4-methylthio-3',4'-dichlorochalcone, 4-methylthio-4'-nonylchalcone, 4-methylthio-4'-t-butylchalcone, 4-ethylthio-4'-fluorochalcone, 4-ethylthio-4'-chlorochalcone, 4-ethylthio-4'-bromochalcone, 4-ethylthio-3'-bromochalcone, 4-ethylthio-4'-iodochalcone, 4-butylthio-4'-bromochalcone, 4-butylthio-4'-iodochalcone, 4-octylthio-4'-chlorochalcone and 4-octadecylthio-4'-bromochalcone.
Claim 4
Dependent Claim 36 words
The non-linear optical device as claimed in claim 1, wherein said derivative of chalcone represented by the general formula is prepared by a condensation reaction between a derivative of thiobenzaldehyde and acetophenone or a derivative thereof.
Claim 5
Dependent Claim 26 words
The non-linear optical device as claimed in claim 3, wherein said condensation reaction is carried out within a temperature range of from 0° to 50° C.

References Cited (Backward Citations)

DE2045056A1 Cited
DE2502490A1 Cited
EP0013960A1 Cited
EP0051819A2 Cited
US4892681A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1994-09-02 1995-03-04 1995-09-03 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1998-09-02 1999-03-04 1999-09-03 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2002-09-02 2003-03-04 2003-09-03 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag