GB1398155A – Memory devices
– Google Patents
GB1398155A – Memory devices
– Google Patents
Memory devices
Info
Publication number
GB1398155A
GB1398155A
GB3574172A
GB3574172A
GB1398155A
GB 1398155 A
GB1398155 A
GB 1398155A
GB 3574172 A
GB3574172 A
GB 3574172A
GB 3574172 A
GB3574172 A
GB 3574172A
GB 1398155 A
GB1398155 A
GB 1398155A
Authority
GB
United Kingdom
Prior art keywords
electrodes
voltage
electrode
deposited
electrophoretic
Prior art date
1971-07-29
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB3574172A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
1971-07-29
Filing date
1972-07-31
Publication date
1975-06-18
1972-07-31
Application filed by Matsushita Electric Industrial Co Ltd
filed
Critical
Matsushita Electric Industrial Co Ltd
1975-06-18
Publication of GB1398155A
publication
Critical
patent/GB1398155A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
G—PHYSICS
G11—INFORMATION STORAGE
G11C—STATIC STORES
G11C13/00—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00
G11C13/02—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using elements whose operation depends upon chemical change
B—PERFORMING OPERATIONS; TRANSPORTING
B82—NANOTECHNOLOGY
B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
B82Y10/00—Nanotechnology for information processing, storage or transmission, e.g. quantum computing or single electron logic
G—PHYSICS
G01—MEASURING; TESTING
G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
G01N27/416—Systems
G01N27/447—Systems using electrophoresis
Abstract
1398155 Electrophoretic data storage; matrix displays MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 31 July 1972 [29 July 1971] 35741/72 Headings G4C and G5C [Also in Division C7] Data may be stored by applying a voltage across two electrodes in contact with an electrophoretic material thereby to deposit material on one of the electrodes, the presence of such deposited material being detected by applying a second voltage across the electrodes and detecting the effect of the deposited material. Data storage.-A simple cell is shown in Fig. 1 in which two spaced electrodes 10 and 13 are placed in contact with a powdered electrophoretic material 16 suspended in a liquid. In response to the application of a field across the electrodes, e.g by means of a battery 17, the material 16 is deposited on one or other of the electrodes depending on the polarity of the voltage which may be determined by switch 18. The presence of the material 16 on an electrode causes the cell to exhibit rectification properties which may be detected. When the voltage is removed the material remains undisturbed and a second voltage is applied across the electrodes, e.g. by battery 19, to detect the rectification effect, the second voltage being of a magnitude insufficient to disperse the deposited material. In a practical embodiment each electrode plate consists of a plurality of parallel strips orthogonal to the strips on the other electrode so that by selecting one electrode strip on each plate an elementary storage location is provided in accordance with conventional matrix addressing techniques Display.-It is stated that by including at least one transparent electrode and by utilizing differently coloured liquid and powder or by using several different coloured powders each responsive to different voltage polarities a visible display may be produced. In an example a mixture of olive oil, benzene, polyoxyethylene sorbitan trioleate and TiO 2 powder is used.
GB3574172A
1971-07-29
1972-07-31
Memory devices
Expired
GB1398155A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
JP46057368A
JPS5121531B2
(en)
1971-07-29
1971-07-29
Publications (1)
Publication Number
Publication Date
GB1398155A
true
GB1398155A
(en)
1975-06-18
Family
ID=13053630
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB3574172A
Expired
GB1398155A
(en)
1971-07-29
1972-07-31
Memory devices
Country Status (4)
Country
Link
US
(1)
US3806893A
(en)
JP
(1)
JPS5121531B2
(en)
CA
(1)
CA957072A
(en)
GB
(1)
GB1398155A
(en)
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Assignee
Title
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1979-11-08
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1980-03-07
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Method and apparatus for measuring interfacial electrokinetic phenomena
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(en)
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1981-05-14
1983-08-30
Batchelder J Samuel
Method and apparatus for dielectrophoretic storage and retrieval of information
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(en)
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1981-05-20
1983-11-29
Batchelder J Samuel
Method and apparatus for providing a dielectrophoretic display of visual information
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(en)
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1982-10-05
1984-04-13
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1997-01-08
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Retroreflective electrophoretic displays and materials for making the same
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Encapsulated electrophoretic displays and methods and materials for making the same
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1997-08-28
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Encapsulated electrophoretic displays having a monolayer of capsules and materials and methods for making the same
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Encapsulated electrophoretic displays having a monolayer of capsules and materials and methods for making the same
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Electrophoretic particles, and processes for the production thereof
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Minimally- patterned, thin-film semiconductor devices for display applications
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(en)
*
2005-04-29
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Radial impulse engine, pump, and compressor systems, and associated methods of operation
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Electro-optical display systems
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Hewlett-Packard Development Company, L.P.
Electro-optical display systems
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Publication number
Priority date
Publication date
Assignee
Title
US3158798A
(en)
*
1959-11-17
1964-11-24
William C Sauder
Chemical memory cell
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(en)
*
1959-12-30
1962-10-23
Ibm
Memory device
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Persistent internal polarization imaging system with electrophoretic development
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1971-02-15
Owens Illinois Inc
GASEOUS DISCHARGE MEMORIZATION AND REPRODUCTION DEVICE AND ITS OPERATING MODE
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1970-12-03
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Storage element for storing large amounts of information
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(en)
*
1970-04-09
1972-06-06
Matsushita Electric Ind Co Ltd
Electrophoretic display device
1971
1971-07-29
JP
JP46057368A
patent/JPS5121531B2/ja
not_active
Expired
1972
1972-07-27
US
US00275743A
patent/US3806893A/en
not_active
Expired – Lifetime
1972-07-31
GB
GB3574172A
patent/GB1398155A/en
not_active
Expired
1972-07-31
CA
CA148,290A
patent/CA957072A/en
not_active
Expired
Also Published As
Publication number
Publication date
US3806893A
(en)
1974-04-23
CA957072A
(en)
1974-10-29
JPS4827645A
(en)
1973-04-12
JPS5121531B2
(en)
1976-07-03
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Legal Events
Date
Code
Title
Description
1975-10-29
PS
Patent sealed [section 19, patents act 1949]
1979-09-19
746
Register noted ‘licences of right’ (sect. 46/1977)
1992-09-02
PE20
Patent expired after termination of 20 years
