公开(公告)号：EP0086847A4

公开(公告)日：1984-02-07

申请号：EP82902550

申请日：1982-08-28

Applicant: SONY CORP

Inventor： ARAKAWA SEIICHI ,  KAWASUMI KOICHI ,  SETO JUNETSU

IPC: C09K9/02 ,  G02B5/23 ,  G02B5/28 ,  G03C1/685 ,  G02F1/17 ,  G03C1/733 ,  G11B7/24

CPC classification number: G03C1/685 ,  Y10S428/913 ,  Y10S430/163

公开(公告)号：GB2211843A

公开(公告)日：1989-07-12

申请号：GB8825270

申请日：1988-10-28

Applicant: SONY CORP

Inventor： ARAKAWA SEIICHI ,  TOMIMURO HIROSHI

IPC: C07C69/63 ,  C09K19/12 ,  G02F1/137 ,  G02F1/141

公开(公告)号：CA1207330A

公开(公告)日：1986-07-08

申请号：CA443845

申请日：1983-12-20

Applicant: SONY CORP

Inventor： ARAKAWA SEIICHI ,  KONDO HIROFUMI ,  SETO JUNETSU

IPC: C07D495/10 ,  G03C1/685 ,  G03C1/733

Abstract: Novel photochromic compounds are disclosed, which compounds are represented by the general formula in which R1 represents an alkyl group having 1 to 20 carbon atoms, R2, R3, R4 and R5 independently represent an alkyl group having 1 to 5 carbon atoms, an alkoxy group having 1 to 5 carbon atoms, a halogen atom, a nitro group, a cyano group or a dimethylamino group, and R6, R7 and R8 independently represent a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, an alkoxy group having 1 to 5 carbon atoms, or a halogen atom, and correspondingly 97 to 50 wt% of a film-forming polymer. Photosensitive compositions and materials comprising the compounds are also described.

公开(公告)号：DE3248962C2

公开(公告)日：1991-10-31

申请号：DE3248962

申请日：1982-08-28

Applicant: SONY CORP

Inventor： ARAKAWA SEIICHI ,  KAWASUMI KOICHI ,  SETO JUNETSU

IPC: C09K9/02 ,  G02B5/23 ,  G02B5/28 ,  G02F1/17 ,  G03C1/685 ,  G11B7/24

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.

公开(公告)号：DE3248962T1

公开(公告)日：1983-10-20

申请号：DE3248962

申请日：1982-08-28

Applicant: SONY CORP

Inventor： ARAKAWA SEIICHI ,  KAWASUMI KOICHI ,  SETO JUNETSU

IPC: C09K9/02 ,  G02B5/23 ,  G02B5/28 ,  G02F1/17 ,  G03C1/685 ,  G11B7/24 ,  G03C1/733

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.

公开(公告)号：DE68923777T2

公开(公告)日：1996-05-02

申请号：DE68923777

申请日：1989-12-28

Applicant: SONY CORP

Inventor： MATSUZAWA NOBUYUKI ,  ASAI NOBUTOSHI ,  TAMURA SHINICHIRO ,  KISHII NORIYUKI ,  ARAKAWA SEIICHI

IPC: G11B7/241 ,  G11B7/244 ,  G11B7/248 ,  G11B7/24

Abstract: An optical recording medium is disclosed, in which an optical recording layer (2) and a reflective layer (3) are formed on a transparent substrate. The recording layer (2) contains a first compound having absorption or a recording laser light having a predetermined wavelength, and a second compound having substantially no absorption for a laser light having the predetermined wavelength and decomposable upon heat generation by the laser light in the optical recording layer.

公开(公告)号：DE68923777D1

公开(公告)日：1995-09-14

申请号：DE68923777

申请日：1989-12-28

Applicant: SONY CORP

Inventor： MATSUZAWA NOBUYUKI ,  ASAI NOBUTOSHI ,  TAMURA SHINICHIRO ,  KISHII NORIYUKI ,  ARAKAWA SEIICHI

IPC: G11B7/241 ,  G11B7/244 ,  G11B7/248 ,  G11B7/24

Abstract: An optical recording medium is disclosed, in which an optical recording layer (2) and a reflective layer (3) are formed on a transparent substrate. The recording layer (2) contains a first compound having absorption or a recording laser light having a predetermined wavelength, and a second compound having substantially no absorption for a laser light having the predetermined wavelength and decomposable upon heat generation by the laser light in the optical recording layer.

公开(公告)号：DE3375838D1

公开(公告)日：1988-04-07

申请号：DE3375838

申请日：1983-12-23

Applicant: SONY CORP

Inventor： ARAKAWA SEIICHI ,  KONDO HIROFUMI ,  SETO JUNETSU

IPC: C07D495/10 ,  G03C1/685 ,  G03C1/72

公开(公告)号：HK1007621A1

公开(公告)日：1999-04-16

申请号：HK98106791

申请日：1998-06-25

Applicant: SONY CORP

Inventor： ARAKAWA SEIICHI ,  ASAI NOBUTOSHI ,  TAMURA SHINICHIRO ,  KISHII NORIYUKI ,  MATSUZAWA NOBUYUKI

IPC: G11B7/241 ,  G11B7/244 ,  G11B7/248 ,  G11B

Abstract: An optical recording medium is disclosed, in which an optical recording layer (2) and a reflective layer (3) are formed on a transparent substrate. The recording layer (2) contains a first compound having absorption or a recording laser light having a predetermined wavelength, and a second compound having substantially no absorption for a laser light having the predetermined wavelength and decomposable upon heat generation by the laser light in the optical recording layer.

公开(公告)号：DE69127393T2

公开(公告)日：1998-03-26

申请号：DE69127393

申请日：1991-04-26

Applicant: SONY CORP

Inventor： NITO KEIICHI ,  MIYASHITA MAYUMI ,  MATSUI ERIKO ,  ARAKAWA SEIICHI

IPC: G02F1/133 ,  G02F1/1337 ,  G02F1/141 ,  G02F1/137

Abstract: A liquid crystal display device having fast response characteristics and enabling analog gray-scaleal display is provided. The liquid crystal display device is formed of a liquid crystal material having the chiral smectic C phase. The projection component on the substrates of the axial direction of a cone delineated by a liquid crystal molecule, and the projection component on the substrates of the axial direction of the liquid crystal molecule itself, are adapted to be coincident with the processing direction for uniaxial orientation of the substrates, this state being monostabled as the initial state. On application of an electrical field, the liquid crystal molecule is rotated along the cone and the apparent tilt angle as viewed on the substrate surface is continuously changed in accordance with the strength of the applied electrical field. The intensity of the transmitted light is increased continuously with increasing tilt angle to obtain the continuous gray-scale or analog gray-scale.