Patent US5831723A successfully refreshed from Google Patents.
US5831723A
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Particle analyzer
Assignee: Sysmex Corp
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Filing: 1997-04-02
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Granted: 1998-11-03
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Expires: 2017-04-02
Abstract
Abstract A particle analyzer includes a sheath flow cell for converting a particle containing sample into a sample flow, a first light source for illuminating the sample flow by a continuous light, a light detecting element for detecting a light emitted from a particle illuminated by the first light source and for converting the light into a particle signal indicative of a characteristic of the particle, a second light source for illuminating the sample flow by a momentary light, an imaging device for capturing an image of a particle illuminated by the second light source, an analyzing section for performing particle analysis by employing the particle signal and the image of the particle as analysis data for analyzing the particle, and an inhibiting section for inhibiting the analyzing section from employing, as the analysis data, the particle signal obtained when the second light source illuminates the sample flow.
Inventors
- 👤 Fumio Kubota
- 👤 Hideo Kusuzawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 10:44
CPC Classifications
G; G01; G01N; G01N15/00; G01N15/10; G01N15/14; G01N15/1456; G01N15/1459; G01N15/1429; G01N15/1433
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
148 words
A particle analyzer comprising: a sheath flow cell for converting a particle containing sample into a sample flow; a first light source for illuminating the sample flow by a continuous light; a light detecting element for detecting a light emitted from a particle illuminated by the first light source and for converting the light into a particle signal indicative of a characteristic of the particle; a second light source for illuminating the sample flow by a momentary light; an imaging device for capturing an image of a particle illuminated by the second light source; and an analyzing section for performing particle analysis by employing the particle signal and the image of the particle as analysis data for analyzing the particle; and an inhibiting section for inhibiting the analyzing section from employing, as the analysis data, the particle signal obtained when the second light source illuminates the sample flow.
Claim 2
Dependent Claim
148 words
A particle analyzer comprising: a sheath flow cell for converting a particle containing sample into a sample flow; a first light source for illuminating the sample flow by a continuous light; a light detecting element for detecting a light emitted from a particle illuminated by the first light source and for converting the light into a particle signal indicative of a characteristic of the particle; a second light source for illuminating the sample flow by a momentary light; an imaging device for capturing an image of a particle illuminated by the second light source; and an analyzing section for performing particle analysis by employing the particle signal and the image of the particle as analysis data for analyzing the particle; and an inhibiting section for inhibiting the analyzing section from employing, as the analysis data, the particle signal obtained when the second light source illuminates the sample flow.
Claim 3
Dependent Claim
54 words
The particle analyzer as defined in claim 1, wherein the analyzing section includes an A/D converter for A/D converting in advance the particle signal input from the light detecting element and the inhibiting section includes means for temporarily inhibiting converting operation of the A/D converter when the second light source illuminates the sample flow.
Claim 4
Dependent Claim
61 words
The particle analyzer as defined in claim 1, wherein the analyzing section includes an A/D converter for A/D converting in advance the particle signal input from the light detecting element and the inhibiting section includes means for temporarily inhibiting the light detecting element from inputting the particle signal to the A/D converter when the second light source illuminates the sample flow.
Claim 5
Dependent Claim
69 words
The particle analyzer as defined in claim 1, wherein the analyzing section includes an A/D converter for A/D converting in advance the particle signal input from the light detecting element and a storing section for storing the A/D converted particle signal, and the inhibiting section includes means for temporarily inhibiting the storing section from storing the A/D converted particle signal when the second light source illuminates the sample flow.
Claim 6
Dependent Claim
95 words
The particle analyzer as defined in claim 1, wherein the analyzing section includes: an A/D converter for A/D converting in advance the particle signal input from the light detecting element; identifier adding means for adding, to the A/D converted particle signal, an identifier indicative of the particle signal obtained when the second light source illuminates the sample flow; and a storing section for storing the A/D converted particle signal having the added identifier, the inhibiting section includes means for inhibiting the analyzing section from employing the particle signal having the identifier as the analysis data.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-11-02 | 2002-05-04 | 2002-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-11-02 | 2006-05-04 | 2006-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-11-02 | 2010-05-04 | 2010-11-03 | $7700.00 | Window Closed / Lapsed |