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US5229038A Expired / Lapsed US ⏱️ 0.0 years remaining

Organic nonlinear optical material and method of converting the wavelength of light using said material

Assignee: Fujifilm Holdings Corp
•
Filing: 1991-09-10
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Granted: 1993-07-20
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Expires: 2011-09-10
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Abstract

Abstract A nonlinear optical material comprising a compound represented by the following general formula (I): ##STR1## wherein R and R' are each an alkyl group, an aryl group, an aralkyl group or a hetero ring, and a method of converting the wavelength of laser light using the organic nonlinear optical material.

Inventors

  • 👤 Nobuhiko Uchino
  • 👤 Masaki Okazaki
  • 👤 Koji Matsuo
  • 👤 Yoji Okazaki

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 22:58
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/24; C07D213/44; C07D213/53; C07C; C07C251/00; C07C251/72; C07C251/74; C07C251/76; C07C251/86; C07C255/00; C07C255/61; G; G02; G02F; G02F1/00; G02F1/35; G02F1/355; G02F1/361; G02F1/3611; G02F1/3612

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 113 words
A nonlinear optical material comprising a compound represented by the following general formula (I): ##STR13## wherein R is a 1-8 carbon atom alkyl group or an electron donating 6-18 carbon atom aryl group substituted at the 4-position by a substituent selected from the group consisting of methoxy, amino, diethylamino, hydroxy, methylthio, mercapto, phenoxy, and phenylthio, and R' is a 1-8 carbon atom alkyl group, an electron withdrawing 6-18 carbon atom aryl group substituted at the 4-position by a substituent selected from the group consisting of nitro, cyano, trifluoromethyl, acetyl, carboxy, ethoxycarbonyl, fluorine, chlorine, bromine, and iodine, a 7-19 carbon atom aralkyl group or a six-membered heterocyclic ring containing at least one nitrogen atom.
Claim 2
Dependent Claim 113 words
A nonlinear optical material comprising a compound represented by the following general formula (I): ##STR13## wherein R is a 1-8 carbon atom alkyl group or an electron donating 6-18 carbon atom aryl group substituted at the 4-position by a substituent selected from the group consisting of methoxy, amino, diethylamino, hydroxy, methylthio, mercapto, phenoxy, and phenylthio, and R' is a 1-8 carbon atom alkyl group, an electron withdrawing 6-18 carbon atom aryl group substituted at the 4-position by a substituent selected from the group consisting of nitro, cyano, trifluoromethyl, acetyl, carboxy, ethoxycarbonyl, fluorine, chlorine, bromine, and iodine, a 7-19 carbon atom aralkyl group or a six-membered heterocyclic ring containing at least one nitrogen atom.
Claim 3
Dependent Claim 19 words
A nonlinear optical material as in claim 1, wherein R is said electron donating 6-18 carbon atom aryl group.
Claim 4
Dependent Claim 24 words
A nonlinear optical material as in claim 1, wherein R' is said electron withdrawing 6-18 carbon atom aryl group or said six-membered heterocyclic ring.
Claim 5
Dependent Claim 24 words
A nonlinear optical material as in claim 1, wherein said heterocyclic ring is selected from the group consisting of pyridine, pyrimidine, pyrazine, and 4-methylpyridine.
Claim 6
Dependent Claim 24 words
A nonlinear optical material as in claim 1, wherein R is said aryl group and R' is said aryl group or said heterocyclic ring.

References Cited (Backward Citations)

CA532468A Cited
US3162680A Cited
US3177251A Cited
US4233209A Cited
US4334015A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1996-07-19 1997-01-18 1997-07-20 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2000-07-19 2001-01-18 2001-07-20 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2004-07-19 2005-01-18 2005-07-20 $7700.00 Window Closed / Lapsed

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