GB2001769A

GB2001769A – Electrophotographic sensitive elements
– Google Patents

GB2001769A – Electrophotographic sensitive elements
– Google Patents
Electrophotographic sensitive elements

Info

Publication number
GB2001769A

GB2001769A
GB787828675A
GB7828675A
GB2001769A
GB 2001769 A
GB2001769 A
GB 2001769A
GB 787828675 A
GB787828675 A
GB 787828675A
GB 7828675 A
GB7828675 A
GB 7828675A
GB 2001769 A
GB2001769 A
GB 2001769A
Authority
GB
United Kingdom
Prior art keywords
sensitive elements
electrophotographic sensitive
electrophotographic
elements
sensitive
Prior art date
1977-07-08
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.)

Granted

Application number
GB787828675A
Other versions

GB2001769B
(en

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.)

Ricoh Co Ltd

Original Assignee
Ricoh 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.)
1977-07-08
Filing date
1978-07-04
Publication date
1979-02-07

1978-07-04
Application filed by Ricoh Co Ltd
filed
Critical
Ricoh Co Ltd

1979-02-07
Publication of GB2001769A
publication
Critical
patent/GB2001769A/en

1982-04-07
Application granted
granted
Critical

1982-04-07
Publication of GB2001769B
publication
Critical
patent/GB2001769B/en

Status
Expired
legal-status
Critical
Current

Links

Espacenet

Global Dossier

Discuss

Classifications

G—PHYSICS

G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY

G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY

G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor

G03G5/02—Charge-receiving layers

G03G5/04—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor

G03G5/06—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor characterised by the photoconductive material being organic

G03G5/0664—Dyes

G03G5/0675—Azo dyes

G03G5/0679—Disazo dyes

G03G5/0683—Disazo dyes containing polymethine or anthraquinone groups

C—CHEMISTRY; METALLURGY

C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR

C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES

C09B56/00—Azo dyes containing other chromophoric systems

C09B56/04—Stilbene-azo dyes

C09B56/06—Bis- or polystilbene azo dyes

Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE

Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

Y02E10/00—Energy generation through renewable energy sources

Y02E10/50—Photovoltaic [PV] energy

Y02E10/549—Organic PV cells

GB787828675A
1977-07-08
1978-07-04
Electrophotographic sensitive elements

Expired

GB2001769B
(en)

Applications Claiming Priority (1)

Application Number
Priority Date
Filing Date
Title

JP52081790A

JPS6027017B2
(en)

1977-07-08
1977-07-08

Electrophotographic photoreceptor

Publications (2)

Publication Number
Publication Date

GB2001769A
true

GB2001769A
(en)

1979-02-07

GB2001769B

GB2001769B
(en)

1982-04-07

Family
ID=13756273
Family Applications (1)

Application Number
Title
Priority Date
Filing Date

GB787828675A
Expired

GB2001769B
(en)

1977-07-08
1978-07-04
Electrophotographic sensitive elements

Country Status (5)

Country
Link

US
(1)

US4260672A
(en)

JP
(1)

JPS6027017B2
(en)

CA
(1)

CA1153237A
(en)

DE
(1)

DE2829543C2
(en)

GB
(1)

GB2001769B
(en)

Cited By (8)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

FR2476336A1
(en)

*

1979-12-28
1981-08-21
Ricoh Kk

ELECTROPHOTOGRAPHIC ELEMENT

EP0094079A1
(en)

*

1982-05-10
1983-11-16
Mita Industrial Co. Ltd.
Photosensitive material for electrophotography

GB2123020A
(en)

*

1982-06-18
1984-01-25
Ricoh Kk
Bisazo compounds and electrophotographic photoconductors containing them

US4446217A
(en)

*

1981-02-03
1984-05-01
Canon Kabushiki Kaisha
Electrophotographic photosensitive member having a hydrazone containing layer

GB2130597A
(en)

*

1982-09-01
1984-06-06
Fuji Photo Film Co Ltd
Disazo compounds, photoconductive compositions and electrophotographic light-sensitive materials containing the same

US4456671A
(en)

*

1981-12-23
1984-06-26
Canon Kabushiki Kaisha
Electrophotographic photosensitive member having a photosensitive layer containing a hydrazone compound

US4487824A
(en)

*

1982-05-17
1984-12-11
Canon Kabushiki Kaisha
Electrophotographic photosensitive member containing a halogen substituted hydrazone

US4859556A
(en)

*

1982-04-30
1989-08-22
Ricoh Company, Ltd.
Electrophotographic photoconductor containing stilbene compound

Families Citing this family (35)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

JPS5694360A
(en)

*

1979-12-28
1981-07-30
Ricoh Co Ltd
Electrophotographic receptor

JPS56116040A
(en)

*

1980-02-19
1981-09-11
Copyer Co Ltd
Electrophotographic receptor

JPS56116039A
(en)

*

1980-02-19
1981-09-11
Copyer Co Ltd
Electrophotographic receptor

JPS57656A
(en)

*

1980-06-02
1982-01-05
Copyer Co Ltd
Electrophotographic receptor

US4471040A
(en)

*

1980-09-10
1984-09-11
Canon Kabushiki Kaisha
Electrophotographic disazo photosensitive member

US4390611A
(en)

*

1980-09-26
1983-06-28
Shozo Ishikawa
Electrophotographic photosensitive azo pigment containing members

US4399206A
(en)

*

1980-10-06
1983-08-16
Canon Kabushiki Kaisha
Disazo electrophotographic photosensitive member

JPS5799648A
(en)

*

1980-12-13
1982-06-21
Copyer Co Ltd
Electrophotographic receptor

US4423129A
(en)

*

1980-12-17
1983-12-27
Canon Kabushiki Kaisha
Electrophotographic member having layer containing methylidenyl hydrazone compound

US4418133A
(en)

*

1981-03-27
1983-11-29
Canon Kabushiki Kaisha
Disazo photoconductive material and electrophotographic photosensitive member having disazo pigment layer

JPS57195255A
(en)

*

1981-05-26
1982-11-30
Canon Inc
Electrophotographic receptor

US4427753A
(en)

1981-06-02
1984-01-24
Canon Kabushiki Kaisha
Electrophotographic photosensitive member with disazo or trisazo compound

US4440845A
(en)

*

1981-06-08
1984-04-03
Ricoh Co., Ltd.
Disazo compound, method of making same and electrophotographic element using same

JPS5830760A
(en)

*

1981-08-18
1983-02-23
Canon Inc
Electrophotographic receptor

GB2153378B
(en)

*

1983-12-28
1987-11-04
Ricoh Kk
Disazo compounds and electrophotographic elements containing them

US4882257A
(en)

*

1987-05-27
1989-11-21
Canon Kabushiki Kaisha
Electrophotographic device

US5047304A
(en)

*

1989-10-18
1991-09-10
Canon Kabushiki Kaisha
Electrophotographic photosensitive member

US5093218A
(en)

*

1989-10-19
1992-03-03
Canon Kabushiki Kaisha
Electrophotographic photosensitive member having an azo pigment

US6017665A
(en)

*

1998-02-26
2000-01-25
Mitsubishi Chemical America
Charge generation layers and charge transport layers and organic photoconductive imaging receptors containing the same, and method for preparing the same

US7560203B2
(en)

2003-12-01
2009-07-14
Ricoh Company, Ltd.
Electrophotographic photoreceptor, method of image formation, image formation apparatus and process cartridge for image formation apparatus

CN102608881A
(en)

2004-11-22
2012-07-25
保土谷化学工业株式会社
Electrophotographic photosensitive body

EP1818725B1
(en)

2004-11-24
2014-09-10
Hodogaya Chemical Co., Ltd.
Electrophotographic photosensitive body

JP5060495B2
(en)

2007-01-25
2012-10-31
保土谷化学工業株式会社

Electrophotographic photoreceptor

US8110326B2
(en)

2007-06-04
2012-02-07
Ricoh Company Limited
Electrophotographic photoreceptor, image forming apparatus, and process cartridge

JP5386884B2
(en)

2007-09-10
2014-01-15
株式会社リコー

Naphthalenetetracarboxylic acid diimide derivative and electrophotographic photoreceptor using the naphthalenetetracarboxylic acid diimide derivative

JP2009128587A
(en)

*

2007-11-22
2009-06-11
Mitsubishi Chemicals Corp
Electrophotographic photoreceptor, image forming apparatus and electrophotographic photoreceptor cartridge

EP2078988B1
(en)

2008-01-10
2013-06-26
Ricoh Company, Ltd.
Image forming apparatus and image forming method

US8173343B2
(en)

2008-07-15
2012-05-08
Ricoh Company, Ltd.
Electrophotographic photoconductor, image forming apparatus using the same, and process cartridge

JP5401933B2
(en)

2008-11-10
2014-01-29
株式会社リコー

Electrophotographic photoreceptor, image forming method using the electrophotographic photoreceptor, image forming apparatus, and process cartridge for image forming apparatus

JP5477625B2
(en)

2009-09-10
2014-04-23
株式会社リコー

Electrophotographic photosensitive member, image forming apparatus, and process cartridge

JP5403350B2
(en)

2009-09-10
2014-01-29
株式会社リコー

Electrophotographic photosensitive member, electrophotographic method, electrophotographic apparatus, and process cartridge for electrophotographic apparatus

JP5652641B2
(en)

2010-07-07
2015-01-14
株式会社リコー

Electrophotographic photosensitive member, image forming apparatus, and process cartridge for image forming apparatus

JP5903999B2
(en)

2011-06-16
2016-04-13
株式会社リコー

Photosensitive drum, image forming apparatus, image forming method, and process cartridge

JP6095107B2
(en)

2013-01-29
2017-03-15
高砂香料工業株式会社

Triphenylamine derivative, charge transport material and electrophotographic photoreceptor using the same

EP3415495B1
(en)

2016-02-08
2020-09-16
Takasago International Corporation
Triphenylamine derivative, charge transport material produced using same, and electrophotographic photoreceptor

Family Cites Families (9)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US3583869A
(en)

*

1967-03-24
1971-06-08
Ricoh Kk
Electrophotographic copying paper containing poly-n-vinyl-3-azo carbazole

US3681066A
(en)

*

1970-06-30
1972-08-01
Eastman Kodak Co
Process whereby a diazo-containing material exhibits an imagewise change in triboelectric charging properties

US4051123A
(en)

*

1972-03-28
1977-09-27
Ciba-Geigy Ag
Sulfonic-acid-group containing disazo dyestuffs

US4026704A
(en)

*

1971-12-08
1977-05-31
Hoechst Aktiengesellschaft
Electrophotographic recording material

DE2246256C2
(en)

*

1972-09-21
1982-07-01
Hoechst Ag, 6000 Frankfurt

Electrophotographic recording material

US4105446A
(en)

*

1975-01-21
1978-08-08
Fuji Xerox Co., Ltd.
Organic photoconductive coating compositions containing tricyanovinyl compounds for electrophotography

NL184708C
(en)

*

1975-07-04
1989-10-02
Oce Van Der Grinten Nv

ELECTROPHOTOGRAPHIC COPY PROCESS AND PRODUCT OBTAINED THEREFROM.

US4123270A
(en)

*

1975-09-15
1978-10-31
International Business Machines Corporation
Method of making electrophotographic imaging element

US4047944A
(en)

*

1976-06-01
1977-09-13
Eastman Kodak Company
Electrophoretic migration imaging process with neutral density bisazo pigments

1977

1977-07-08
JP
JP52081790A
patent/JPS6027017B2/en
not_active
Expired

1978

1978-07-04
GB
GB787828675A
patent/GB2001769B/en
not_active
Expired

1978-07-05
DE
DE2829543A
patent/DE2829543C2/en
not_active
Expired

1978-07-07
CA
CA000307028A
patent/CA1153237A/en
not_active
Expired

1978-07-07
US
US05/922,526
patent/US4260672A/en
not_active
Expired – Lifetime

Cited By (8)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

FR2476336A1
(en)

*

1979-12-28
1981-08-21
Ricoh Kk

ELECTROPHOTOGRAPHIC ELEMENT

US4446217A
(en)

*

1981-02-03
1984-05-01
Canon Kabushiki Kaisha
Electrophotographic photosensitive member having a hydrazone containing layer

US4456671A
(en)

*

1981-12-23
1984-06-26
Canon Kabushiki Kaisha
Electrophotographic photosensitive member having a photosensitive layer containing a hydrazone compound

US4859556A
(en)

*

1982-04-30
1989-08-22
Ricoh Company, Ltd.
Electrophotographic photoconductor containing stilbene compound

EP0094079A1
(en)

*

1982-05-10
1983-11-16
Mita Industrial Co. Ltd.
Photosensitive material for electrophotography

US4487824A
(en)

*

1982-05-17
1984-12-11
Canon Kabushiki Kaisha
Electrophotographic photosensitive member containing a halogen substituted hydrazone

GB2123020A
(en)

*

1982-06-18
1984-01-25
Ricoh Kk
Bisazo compounds and electrophotographic photoconductors containing them

GB2130597A
(en)

*

1982-09-01
1984-06-06
Fuji Photo Film Co Ltd
Disazo compounds, photoconductive compositions and electrophotographic light-sensitive materials containing the same

Also Published As

Publication number
Publication date

GB2001769B
(en)

1982-04-07

DE2829543A1
(en)

1979-01-11

US4260672A
(en)

1981-04-07

JPS5417733A
(en)

1979-02-09

JPS6027017B2
(en)

1985-06-26

CA1153237A
(en)

1983-09-06

DE2829543C2
(en)

1982-05-13

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Legal Events

Date
Code
Title
Description

1995-03-01
PCNP
Patent ceased through non-payment of renewal fee

Effective date:
19940704

Download PDF in English

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