公开(公告)号：ID27360A

公开(公告)日：2001-04-05

申请号：ID981285

申请日：1998-09-24

Applicant: SONY CORP

Inventor： ICHIMURA MARI ,  TOMITA HIDEMI

IPC: B01D11/04 ,  B09B3/00 ,  C09B67/44 ,  C09B67/54 ,  G11B7/26

Abstract: The present invention provides a process for efficient recovery of dyestuffs from dye-based optical disks, and to provide a solvent used for recovery. Disclosed herein is a process for recovering dyestuffs from dye-based optical disks by treating the dyestuff-containing layer with a solvent containing a singlet oxygen quencher. Disclosed also herein is a solvent for dyestuff recovery which contains a singlet oxygen quencher.

公开(公告)号：DE69601237D1

公开(公告)日：1999-02-11

申请号：DE69601237

申请日：1996-02-20

Applicant: SONY CORP ,  FUJIKURA KASEI KK

Inventor： TOMITA HIDEMI ,  SAM HUY ,  KUROMIYA MIYUKI ,  YAMAMOTO SEIICHI ,  MIZOGUCHI MASATAKA

IPC: B41M5/382 ,  B41M5/50 ,  B41M5/52 ,  B41M5/00

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

IPC: B41J2/32 ,  B41J2/005 ,  B41J2/325 ,  B41M5/382 ,  B41J2/475

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.

公开(公告)号：SG40824A1

公开(公告)日：1997-06-14

申请号：SG1996002405

申请日：1996-02-17

Applicant: SONY CORP ,  FUJIKURA KASEI KK

Inventor： TOMITA HIDEMI ,  SAM HUY ,  KUROMIYA MIYUKI ,  YAMAMOTO SEIICHI ,  MIZOGUCHI MASATAKA

IPC: B41M5/382 ,  B41M5/50 ,  B41M5/52 ,  B41M5/00

公开(公告)号：GB2240549A

公开(公告)日：1991-08-07

申请号：GB9102023

申请日：1991-01-30

Applicant: SONY CORP

Inventor： NOGUCHI TSUTOMU ,  TOMITA HIDEMI

IPC: C09D161/10 ,  G03F7/023

Abstract: Resist materials comprise a novolac resin prepared from cresol and formalin wherein the formalin is used in excess to introduce a branched structure in the novolac resin, and a diazo compound chemically combined with the novolac resin. The resist materials may further comprise a dihydroxybenzene derivative. The molar ratio of cresol to formalin ranges from 1:1 to 1:4.

公开(公告)号：JPH1190101A

公开(公告)日：1999-04-06

申请号：JP26163697

申请日：1997-09-26

Applicant: SONY CORP

Inventor： ICHIMURA MARI ,  TOMITA HIDEMI

IPC: B01D11/04 ,  B09B3/00 ,  C09B67/44 ,  C09B67/54 ,  G11B7/26

Abstract: PROBLEM TO BE SOLVED: To highly efficiently recover a dyestuff from a dyestuff-containing information recording medium by treating a dyestuff-containing layer with a solvent containing a singlet oxygen deactivating agent (quencher) to recover the dyestuff. SOLUTION: The dyestuff-containing information recording medium is a direct read after write type dyestuff based optical disc having at least a substrate, the dyestuff-containing layer, a reflection film and a protective film in this order. At first, the substrate and the dyestuff-containing layer are separated (stripped) from the reflection film and the protective film. After that, the dyestuff is extracted from the dyestuff-containing layer with the solvent containing the singlet oxygen deactivating agent (quencher). And the extracted dyestuff is concentrated, for example with a rotary evaporator or the like. Finally the concentrated dyestuff is separated, for example by a liquid chromatography. As a result, the dyestuff is high efficiently recovered with high purity. And the solvent is desirably used for the recovery of the dyestuff with the addition of the singlet oxygen deactivating agent (quencher) into the solvent after oxygen is removed from the solvent.

公开(公告)号：JPH09118796A

公开(公告)日：1997-05-06

申请号：JP14067396

申请日：1996-05-11

Applicant: SONY CORP

Inventor： INAGAKI YASUSHI ,  NOGUCHI TSUTOMU ,  TOMITA HIDEMI

IPC: C08L25/02 ,  C08F8/00 ,  C08F8/42 ,  C08F12/14 ,  C08F283/08 ,  C08G65/48 ,  C08L25/18 ,  C08L51/00 ,  C08L55/02 ,  C08L71/00 ,  C08L71/12 ,  H05K1/03

Abstract: PROBLEM TO BE SOLVED: To further improve the heat resistance of a heat-resistant resin compsn. comprising a polystyrene resin and a polyphenylene oxide resin. SOLUTION: The heat resistance of a heat-resistant resin compsn. comprising a polystyrene resin and a polyphenylene oxide resin is further improved by introducing acidic groups into at least either the polystyrene resin or the polyphenylene oxide resin and neutralizing the acidic groups with a basic metal compd. contg. a metal atom of the group 2B, 3B, 4B, or 5B to form ionic bonds between polymer chains constituting the compsn.

公开(公告)号：JPH0789107A

公开(公告)日：1995-04-04

申请号：JP19900493

申请日：1993-07-16

Applicant: SONY CORP

Inventor： SHINOZAKI KENJI ,  HIRANO EIKI ,  KAWAKADO KOICHI ,  ASAI NOBUTOSHI ,  TOMITA HIDEMI ,  SATO SHUJI ,  OGATA MASANORI ,  SHIODA HIROYUKI

IPC: B41J2/32 ,  B41J2/005 ,  B41J2/325 ,  B41M5/382 ,  B41M5/26

Abstract: PURPOSE:To form an image of high quality by applying the heat generated by a heating source to a recording material to heat the same and providing the heating medium supporting the recording material and holding the gap between the recording medium and a material to be recorded to a specific distance and heating the recording material through the heating medium to transfer the same to the material to be recorded. CONSTITUTION:A heating medium 3 supports a recording material A so as to apply the heat generated by a heating source 5 to the recording material A to heat the same and the gap (d) between the recording material A and a material to be recorded is held to 1-100mum and the recording material A is heated through the heating medium 3 to be transferred to the material 4 to be recorded. As a result, recording of high quality is ensured and heat efficiency is enhanced and miniaturization and wt. reduction become easy and waste such as a used ink sheet is not generated.

公开(公告)号：JPH0768803A

公开(公告)日：1995-03-14

申请号：JP16869793

申请日：1993-06-14

Applicant: SONY CORP

Inventor： HIRANO EIKI ,  TOMITA HIDEMI ,  SHINOZAKI KENJI

IPC: B41J2/32 ,  B41J2/325 ,  B41J2/475 ,  B41M5/24 ,  B41M5/26 ,  B41M5/382 ,  B41M5/385 ,  B41M5/392 ,  B41M5/46 ,  B41M5/30

Abstract: PURPOSE:To contrive an improvement in thermal efficiency, miniaturization and a reduction in weight, by a method wherein a layer of a hot-melt recording material facing on a recorded body through a gap is evaporated and sublimated by heating the layer selectively and a heating energy absorbing material accelerating the heating is allowed to contain within the recording material. CONSTITUTION:Pieces of recorded paper 50 are separated piece by piece and supplied to a space between a plane base 4 and head part (recording part) 10. Then in the head part 10, semiconductor laser chips 18 for three colors (Y, M, C) are juxtaposed in numbers of pieces by amount of pixels in three rows. Then after solid and powdery sublimating dyes 12 within solid dye holding tanks 11 each are melted (liquefaction) by a heater 16, those liquid sublimating dyes 12' are supplied to glass beads 22 within an evaporation hole 17a in evaporation parts 17 each by a fixed quantity by making use of a capillarity of liquid dye holding tanks 15 each. On the one hand, laser beams L generated by semiconductor laser chips 18 each are converted into heat by beam and heat converting layers 21 each. Hereby, the liquid sublimating dyes 12' are evaporated and transferred to an image receiving layer 50a of the recorded layer 50.

公开(公告)号：JPH1135733A

公开(公告)日：1999-02-09

申请号：JP19562797

申请日：1997-07-22

Applicant: SONY CORP

Inventor： TOMITA HIDEMI ,  KOMINE TETSUYA ,  ICHIMURA MARI

IPC: B09B5/00 ,  B01D11/02 ,  B09B3/00 ,  B29B17/00 ,  B29B17/02 ,  C08J11/00 ,  C08J11/06 ,  G11B7/26

Abstract: PROBLEM TO BE SOLVED: To enable a colorant component to be recovered without fail from the substrate of a disk-like information recording medium comprising the substrate and a colorant layer, a reflective film, and a protective film laminated thereon by separating the substrate from the reflective film and bringing the substrate into contact with a soln. capable of dissolving the colorant layer. SOLUTION: The substrate is separated from the reflective film pref. by the exposure to ultrasonic waves in a medium. The colorant layer is removed e.g. by dipping in a solvent capable of dissolving the colorant or by spraying the solvent. The solvent used here is pref. the one which does not affect a polycarbonate constituting the substrate, examples being alcoholic solvents, 1,2-ethylenediol, glycerol, Cellosolve solvents, and hydroxyketone solvents. Thus, the resin of the substrate is made reusable as a clear resin. In recovering the colorant, it is pref. separated from impurities by filtration.