US Patent No: 7,790,439

Number of patents in Portfolio can not be more than 2000

Biosensor and measurement method

ALSO PUBLISHED AS: 20040029177

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Abstract

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In a biosensor having a developing layer for developing a sample solution, including a reagent part immobilized to a portion of the developing layer and a marked reagent part which is held in a dry state by a portion of the developing layer, and is dissolvable by developing the sample solution, and qualitatively or quantitatively analyzing an analyte in the sample solution by measuring the amount of the marker reagent bound to the reagent immobilization part; wherein plural reagent immobilization parts exist, and the respective reagent immobilization parts have different affinities for the analyte in the sample solution or the marker reagent, whereby a prozone phenomenon can be detected. Further, a biosensor with a high precision of measurement, which has a wider dynamic range for the concentration of the analyte in the sample solution, can be provided. Thereby, a highly accurate and precise biosensor which can detect a prozone phenomenon even when the range of the concentration of the analyte in the sample solution is wide, and has a wide measurement dynamic range can be provided.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
PANASONIC HEALTHCARE HOLDINGS CO., LTD.TOKYO, JP601

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kitawaki, Fumihisa Kadoma, JP 44 337
Nadaoka, Masataka Iyo, JP 34 179
Takahashi, Mie Niihama, JP 46 290
Tanaka, Hirotaka Tokyo, JP 74 240

Cited Art Landscape

Patent Info (Count) # Cites Year
 
SIEMENS HEALTHCARE DIAGNOSTICS INC. (3)
5,569,608 Quantitative detection of analytes on immunochromatographic strips 129 1995
6,183,972 Method for the determination of analyte concentration in a lateral flow sandwich immunoassay exhibiting high-dose hook effect 42 1998
6,338,969 Assay test system for regulating temperature 11 1999
 
INVERNESS MEDICAL SWITZERLAND GMBH (2)
4,956,302 Lateral flow chromatographic binding assay device 128 1989
5,602,040 Assays 212 1994
 
ROCHE DIAGNOSTICS GMBH (2)
6,184,042 Method for reducing hook effect in an immunoassay 35 1997
7,008,799 Analytical test element with a capillary channel 54 1998
 
ROCHE DIAGNOSTICS OPERATIONS, INC. (2)
5,948,695 Device for determination of an analyte in a body fluid 44 1997
6,248,597 Microparticle enhanced light scattering agglutination assay 18 1998
 
BAYER CORPORATION (1)
6,210,978 Method and device for the detection of analyte in a fluid test sample 1 1998
 
BioTronic Technologies, Inc. (1)
6,670,115 Devices and methods for detecting analytes using electrosensor having capture reagent 78 2000
 
CHURCH & DWIGHT CO., INC. (1)
6,485,982 Test device and method for colored particle immunoassay 83 1995
 
EURO-CELTIQUE S.A. (1)
6,534,768 Hemispherical detector 2 2000
 
LABORATOIRES SERONO SA (1)
5,856,203 Sensor device for sandwich assay 18 1996
 
NEXUS DX, INC. (1)
6,673,628 Analytical test device and method 10 2001
 
OY MEDIX BIOCHEMICA AB (1)
5,712,170 Test strip, its production and use 36 1994
 
P B DIAGNOSTIC SYSTEMS, INC., A CORP. OF DE. (1)
4,906,439 Biological diagnostic device and method of use 128 1987
 
PANASONIC HEALTHCARE HOLDINGS CO., LTD. (1)
6,830,669 Biosensor 134 2001
 
RELIA DIAGNOSTIC SYSTEMS, INC. (1)
6,528,323 Bidirectional lateral flow test strip and method 28 1999
 
SEREX, INC. (1)
6,121,008 Chromatographic immunoassay device and method utilizing particle valency for quantification 16 1997
 
SMITHKLINE DIAGNOSTICS, INC. (1)
5,846,838 Opposable-element assay device employing conductive barrier 22 1997
 
TELIK, INC. (1)
5,356,784 Determination of concentration by affinity titration 17 1993
 
THE REGENTS OF THE UNIVERSITY OF CALIFORNIA (1)
5,459,040 Enzyme amplified, complex linked, competitive and non-competitive assays for the detection of metal ions 34 1993
 
Other [Check patent profile for assignment information] (2)
6,656,745 Devices and methods for a multi-level, semi-quantitative immunodiffusion assay 18 2000
6,478,248 Handle for roll core 2 2002

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
ROCHE DIAGNOSTICS OPERATIONS, INC. (1)
8,354,235 Method for increasing the dynamic measuring range of test elements based on specific binding reactions 0 2006

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3.5 Year Payment $1600.00 $800.00 $400.00 Mar 7, 2014
7.5 Year Payment $3600.00 $1800.00 $900.00 Mar 7, 2018
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Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00

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