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公开(公告)号：DE69220031D1
公开(公告)日：1997-07-03
申请号：DE69220031
申请日：1992-10-02
Applicant: SONY CORP
Inventor： TOKUNAGA HIROSHI , SHIRAKURA AKIRA , MATSUZAKA HIDEKI , IKEMOTO YUICHIROU , FUKUOKA TOSHIMI , MORI TAKAKI , IWASAKI NORIKAZU , YAKURA YUJI , ANDOH HISASHI , KAWASUMI KOICHI
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公开(公告)号：DE69029255D1
公开(公告)日：1997-01-09
申请号：DE69029255
申请日：1990-12-20
Applicant: SONY CORP
Inventor： ATA MASAFUMI , KAWASUMI KOICHI , YAKURA YUJI , WATANABE HARUO
IPC: C08F220/28 , G03G9/087
Abstract: A developer for electrostatic electrophotography which comprises a composition of colorant particles, an electric charge supplying agent and a resin binder dispersed in a dispersion medium. The resin binder is a copolymer which has a polyoxyethylene units at side chains thereof, so that the interaction with the electric charge supplying agent is improved. The resultant developer ensures good resolution, gradation and fixing property and is suitable for wet development to give high-quality images. When the copolymer used as the resin binder has styrene units therein, its solubility in the dispersion medium is improved. The developer is either liquid or solid depending on the type of dispersion medium.
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公开(公告)号：DE19850156A1
公开(公告)日：1999-05-06
申请号：DE19850156
申请日：1998-10-30
Applicant: SONY CORP
Inventor： MATSUI ERIKO , KAWASUMI KOICHI , AKIMOTO OSAMU
Abstract: The method involves providing a first time period for application of an electrical signal for selecting one of two states, and a second time period for holding the selected state, either without application of the electrical signal, or with the application of an electrical signal for selection of none of the states using the memory characteristic of the ferroelectric liquid crystal or antiferroelectric liquid crystal during a common pixel selection period. The electric signal for selecting one of the two states is a pulse signal of positive polarity w.r.t. a reference level. The electric signal for selecting the other of the states is of negative polarity. A spatial light modulator and a method of driving a spatial light modulator are also claimed.
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公开(公告)号：GB2118316B
公开(公告)日：1985-07-03
申请号：GB8310963
申请日：1982-08-28
Applicant: SONY CORP
Inventor： ARAKAWA SEIICHI , KAWASUMI KOICHI , SETO JUNETSU
Abstract: PCT No. PCT/JP82/00345 Sec. 371 Date Apr. 21, 1983 Sec. 102(e) Date Apr. 21, 1983 PCT Filed Aug. 28, 1982 PCT Pub. No. WO83/00873 PCT Pub. Date Mar. 17, 1983.A photochromic photosensitive composition contains a benzothiazolinospiropyran compound represented by the general formula: wherein R1 represents an alkyl group containing 1 to 10 carbon atoms, R2 represents an alkyl group containing 1 to 10 carbon atoms or a phenyl group, R3 represents a hydrogen atom, a halogen atom, a methoxy group or an alkyl group containing 1 to 5 carbon atoms, and R4 represents a hydrogen atom, an alkyl group containing 1 to 5 carbon atoms, a methoxy group or a methylthio group, dissolved or dispersed in a bisphenol A type polyether resin for enhancing thermal stability of the compound in a colored state. Addition of a phenol to the composition serves to further enhance the heat stability. As compared with conventional photochromic compositions, this photochromic photosensitive composition is thermally extremely stable in a colored state, and the developed color image can be stored for an enough long time to be suited for long-time recording.
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公开(公告)号：GB2118316A
公开(公告)日：1983-10-26
申请号：GB8310963
申请日：1982-08-28
Applicant: SONY CORP
Inventor： ARAKAWA SEIICHI , KAWASUMI KOICHI , SETO JUNETSU
Abstract: PCT No. PCT/JP82/00345 Sec. 371 Date Apr. 21, 1983 Sec. 102(e) Date Apr. 21, 1983 PCT Filed Aug. 28, 1982 PCT Pub. No. WO83/00873 PCT Pub. Date Mar. 17, 1983.A photochromic photosensitive composition contains a benzothiazolinospiropyran compound represented by the general formula: wherein R1 represents an alkyl group containing 1 to 10 carbon atoms, R2 represents an alkyl group containing 1 to 10 carbon atoms or a phenyl group, R3 represents a hydrogen atom, a halogen atom, a methoxy group or an alkyl group containing 1 to 5 carbon atoms, and R4 represents a hydrogen atom, an alkyl group containing 1 to 5 carbon atoms, a methoxy group or a methylthio group, dissolved or dispersed in a bisphenol A type polyether resin for enhancing thermal stability of the compound in a colored state. Addition of a phenol to the composition serves to further enhance the heat stability. As compared with conventional photochromic compositions, this photochromic photosensitive composition is thermally extremely stable in a colored state, and the developed color image can be stored for an enough long time to be suited for long-time recording.
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Patent Agency Ranking
公开(公告)号：DE68918996T2
公开(公告)日：1995-06-14
申请号：DE68918996
申请日：1989-06-23
Applicant: SONY CORP
Inventor： WATANABE HARUO , OHYAMA MASAMI , YASUDA AKIO , KAWASUMI KOICHI
Abstract: An electrophotographic process uses a developer (4) in which the colorant (6) is dispersed in an electrically insulating organic material (5) being solid at room temperature and liquified by heating (8). The developer is superior in ease of handling and capable of producing stable images at all times. An electrostatic latent image is wet developed by the developer. For recording and preserving the developed image, it is transferred to a transfer substrate. The developed image is transferred by contact of a photoconductor with the transfer substrate, or by peeling a film from a photoconductor.
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公开(公告)号：DE68918996D1
公开(公告)日：1994-12-01
申请号：DE68918996
申请日：1989-06-23
Applicant: SONY CORP
Inventor： WATANABE HARUO , OHYAMA MASAMI , YASUDA AKIO , KAWASUMI KOICHI
Abstract: An electrophotographic process uses a developer (4) in which the colorant (6) is dispersed in an electrically insulating organic material (5) being solid at room temperature and liquified by heating (8). The developer is superior in ease of handling and capable of producing stable images at all times. An electrostatic latent image is wet developed by the developer. For recording and preserving the developed image, it is transferred to a transfer substrate. The developed image is transferred by contact of a photoconductor with the transfer substrate, or by peeling a film from a photoconductor.
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公开(公告)号：DE69006333D1
公开(公告)日：1994-03-10
申请号：DE69006333
申请日：1990-12-11
Applicant: SONY CORP
Inventor： TSUCHIYA TAKAO , SHIRAKURA AKIRA , WATANABE HARUO , KAWASUMI KOICHI
Abstract: An electro-photographic apparatus utilizes solid developers (1) of a plurality of colours from a cartridge (2) for developing an electrostatic latent image. The solid developers (1) are solid at normal temperature and are liquified by a heater (5) for use. The solid developers (10) are accommodated within the single container (2) in a predetermined colour order.
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公开(公告)号：DE69409680T2
公开(公告)日：1998-12-03
申请号：DE69409680
申请日：1994-01-27
Applicant: SONY CORP
Inventor： SHINOZAKI KENJI , HIRANO HIDEKI , KAWASUMI KOICHI , ASAI NOBUTOSHI , TOMITA HIDEMI , SATO SHUJI , OGATA MASANORI , SHIOTA HIROYUKI
Abstract: An ink sheet (3) is wound around rollers (6), and a recording sheet (4) is placed with a space (d) between the ink sheet (3) and the recording sheet (4) and is advanced. The thickness of the space (d) is a value in the range of 1 to 100 mu m. The ink sheet (3) is irradiated with a laser beam (L) emitted by a laser (5) to transfer the dye contained in a dye layer formed on the ink sheet (3) from the ink sheet (3) to the recording sheet (4) for printing. The dye layer of the ink sheet (3) is replenished with the dye (30, 30A) heated and fused by a heater (9) by a dye supply unit (7) at a position other than a position where the ink sheet (3) is irradiated with the laser beam (L). Since the ink sheet and the recording sheet are held with the space (d) having a thickness in the range of 1 to 100 mu m, the dye once transferred to the recording sheet is not transferred from the rcording sheet to the ink sheet, so that a clear picture having a comparatively high density can be printed. Since the dye layer of the ink sheet is replenished with the dye, the ink sheet can be repeatedly used, so that no waste is produced.
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公开(公告)号：DE69029255T2
公开(公告)日：1997-06-12
申请号：DE69029255
申请日：1990-12-20
Applicant: SONY CORP
Inventor： ATA MASAFUMI , KAWASUMI KOICHI , YAKURA YUJI , WATANABE HARUO
IPC: C08F220/28 , G03G9/087
Abstract: A developer for electrostatic electrophotography which comprises a composition of colorant particles, an electric charge supplying agent and a resin binder dispersed in a dispersion medium. The resin binder is a copolymer which has a polyoxyethylene units at side chains thereof, so that the interaction with the electric charge supplying agent is improved. The resultant developer ensures good resolution, gradation and fixing property and is suitable for wet development to give high-quality images. When the copolymer used as the resin binder has styrene units therein, its solubility in the dispersion medium is improved. The developer is either liquid or solid depending on the type of dispersion medium.
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