公开(公告)号：JPS5765753A

公开(公告)日：1982-04-21

申请号：JP14007080

申请日：1980-10-07

Applicant: Sony Corp

Inventor： ARAKAWA SEIICHI ,  SETO NOBUYOSHI

IPC: C08K5/00 ,  C08K5/34 ,  C08K5/3412 ,  C08L101/00 ,  C09B57/00 ,  G02F1/17

Abstract: PURPOSE: The titled photosensitive composition with reverse photochromic characteristics having high contrast, resolution and photosensitivity, and prolonged color development and extinction cycle life, which comprises a specified spiran deriv.
CONSTITUTION: A spiran deriv. of the formula (wherein R
1 is 12W30C alkyl; R
2 is H, 1W5C alkyl 1W5C alkoxy, 2W5C alkoxycarbonyl, halogen or nitro) prepd. by replacing 6',8'-dinitroindolinobenzopyrrylyl-spiran at the N position with an alkyl group having a large number of carbon atoms. Although usually, said compd. having visible ray absorption at about 500W600nm, is colored in magenta, the color is extinguished upon irradiation with a visifle or UV ray, while it is developed again upon heating at a temp. ≥ about 60°C; the so called reverse photochromism.
COPYRIGHT: (C)1982,JPO&Japio

Abstract translation: 目的：具有反向光致变色特性的标题感光组合物，具有高对比度，分辨率和光敏性，以及延长的显色和消光循环寿命，其包含特定的螺旋衍生物。 构成：一种螺旋衍生物。 式（其中R 1是12-30C烷基; R 2是H，1-5C烷基1-5C烷氧基，2-5C烷氧基羰基，卤素或硝基）。 通过在N位置用具有大量碳原子的烷基取代6'，8'-二硝基吲哚并苯并吡喃并 - 螺旋
液。 虽然通常说，compd 在约500-600nm处具有可见光线吸收，被着色为品红色，在用可见光或紫外线照射时熄灭颜色，而在温度加热时再次显色。 > =约60℃; 所谓反向光致变色。

公开(公告)号：JPH11183896A

公开(公告)日：1999-07-09

申请号：JP35657897

申请日：1997-12-25

Applicant: SONY CORP

Inventor： SAITO YOSHIMASA ,  ARAKAWA SEIICHI

IPC: G02F1/1337 ,  G02F1/1335

Abstract: PROBLEM TO BE SOLVED: To provide a liquid crystal(LC) display element having many picture elements in spite of compact structure and capable of obtaining sufficiently high contrast in spite of the appearance of polarization on a substrate itself. SOLUTION: The LC display element is provided with a pair of substrates 1a, 1b forming LC orientation films and an LC layer 2 formed between both the substrates 1a, 1b. One substrate 1a out of the substrates 1a, 1b has many picture elements and the aperture parts of respective pixture elements are aligned in a fixed direction, so that the substrate 1a has polarization having an individual polarizing direction. The LC is orientated to a direction approximately parallel with or approximately vertical to the polarizing direciton of the substrate 1a.

公开(公告)号：JPH0245668B2

公开(公告)日：1990-10-11

申请号：JP13505981

申请日：1981-08-28

Applicant: SONY CORP

Inventor： ARAKAWA SEIICHI ,  KAWAKADO KOICHI ,  SETO NOBUYOSHI

IPC: C09K9/02 ,  G02B5/23 ,  G02B5/28 ,  G03C1/685

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：JPH02250853A

公开(公告)日：1990-10-08

申请号：JP7337689

申请日：1989-03-24

Applicant: SONY CORP

Inventor： ARAKAWA SEIICHI ,  NITO KEIICHI

IPC: G02F1/13 ,  C07C69/63 ,  C07C69/78 ,  C07C69/92 ,  C09K19/32 ,  C09K19/54

Abstract: NEW MATERIAL:A compound shown by the formula [R1 is CmH2m+1- or CmH2m+1 O(m is 5-20) ; R2 is -COO- or-CH2O-; n is 1 or 2; p is 3-20]. USE:A liquid crystal display element material. Showing high spontaneous polarization in a single system or a mixed system and especially useful as a ferroelectric liquid crystal composition actualizing high-speed response. PREPARATION:A central group having an aromatic ring replaced with a hydroxyl group is esterified with a halide of a carboxylic acid containing an asymmetric carbon atom replaced with fluorine at the alpha position to give a compound shown by the formula.

公开(公告)号：JPH02164587A

公开(公告)日：1990-06-25

申请号：JP31843688

申请日：1988-12-19

Applicant: SONY CORP

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

IPC: B41M5/26 ,  G11B7/244 ,  G11B7/26

Abstract: PURPOSE:To form a uniform org. dye layer without imparting damage to a substrate by coating the substrate with paint prepared by dissolving org. dye in a specific solvent to prepare an optical data recording medium provided with the org. dye layer. CONSTITUTION:An org. dye is dissolved in an org. solvent being a 4-6C chain compound having either one of a carbonyl group and a 2-3C ester group in the molecule thereof and having a hydroxyl group at either one of an alpha-position and a beta-position. This org. solvent solution of the org. dye is applied to a substrate composed of polycarbonate and dried to prepare an optical data recording medium having an org. dye layer formed thereto. As a suitable embodiment of the aforementioned org. solvent, there are diacetone alcohol, 4-hydroxy-2- butanone, 2-hydroxy-2-methyl-3-butane or the like.

公开(公告)号：JPS648812B2

公开(公告)日：1989-02-15

申请号：JP13565980

申请日：1980-09-29

Applicant: SONY CORP

Inventor： ARAKAWA SEIICHI ,  KAWAKADO KOICHI ,  SETO NOBUYOSHI

IPC: C09B57/00 ,  C09B67/00 ,  C09B67/42 ,  C09K9/02 ,  G03C1/685

公开(公告)号：JPS62299386A

公开(公告)日：1987-12-26

申请号：JP14369886

申请日：1986-06-19

Applicant: SONY CORP

Inventor： ARAKAWA SEIICHI ,  ISHIKAWA TOMIKO ,  ASAI NOBUTOSHI

IPC: B41M5/323 ,  C09K9/02 ,  G03C1/685 ,  G11B7/24 ,  G11B7/244

Abstract: PURPOSE:To contrive stabilization of a developed color image both thermally and to visible rays, by heat-treating a photosensitive layer comprising a specified indolinospirobenzothiopyran compound, a high molecular weight substance and a metal naphthenate as main constituent after developing a color by irradiating the layer with UV rays. CONSTITUTION:A recording layer is constituted of a photosensitive layer formed of a photosensitive composition comprising an indolinospirobenzothiopyran compound of the formula, wherein each of R1-R3 is H, a halogen, 1-5C alkoxymethyl, hydroxymethyl or alkylaminomethyl, a high molecular weight substance and a metal naphthenate as main constituents. The photosensitive layer is irradiated with UV rays to develop a color, and thereafter it is heat-treated. The high molecular weight substance may be any one which is well compatible with the compound of the formula and has an excellent film-forming capability, and may be polymethyl methacrylate, polystyrene, a phenolic resin, a phenoxy resin or the like, among which a chlorine- containing high molecular weight substance and a phenolic resin are particularly preferable. The amount of the metal naphthenate is preferably 10-50pts.wt. per 100pts. wt. of the high molecular weight substance, and the amount of the compound of the formula is 20-120pts.wt. per 100pts.wt. of the high molecular weight substance.

公开(公告)号：JPS62294244A

公开(公告)日：1987-12-21

申请号：JP8001186

申请日：1986-04-09

Applicant: SONY CORP

Inventor： ARAKAWA SEIICHI ,  TAMURA SHINICHIRO ,  YASUZUKA HIROSHI ,  HATA KATSUSHIGE

IPC: C09K9/02 ,  G03C5/00 ,  G03C5/56 ,  G03F1/00 ,  G03F1/68 ,  H05K3/00

Abstract: PURPOSE:To reduce the amt. of the silver salt film to be used in the image forming stage by forming an image to a spiropyran photochromic film, exposing the same through a filter which shields specific transmitted light and transferring the image to the silver salt film, etc. CONSTITUTION:The spiropyran photochromic is formed by using the benzopyran spiropyran compd., etc., expressed by the formula as a recording material. In the formula, R1 denotes an alkyl group of 1-20C, R2-R5 denote H, alkoxy group of 1-5C, halogen, etc., R6-R8 denote an alkoxy group of 1-5C, halogen atom. The image is formed by radiating light to the spiropyran photochromic film. The spiropyran compd. sensitizes the silver salt film by allowing the transmission of visible light at about 400-500nm in the color forming state. The image formed on the photochromic film is exposed through the yellow filter for shielding the light of the above-mentioned wavelength range and is transferred to the silver salt film. Since the image is transferred by using the filter, the sharp image having no fogging is formed.

公开(公告)号：JPS6042483A

公开(公告)日：1985-03-06

申请号：JP15007383

申请日：1983-08-17

Applicant: SONY CORP

Inventor： ISHIMOTO HIKARI ,  ARAKAWA SEIICHI

IPC: C09K9/02

Abstract: PURPOSE:To provide the titled compsn. contg. a long-chain alkyl group-contg. spiropyran compd., a long-chain alkyl fatty acid or lower alcohol ester thereof and a macromolecular substance and developing stable color under irradiation with ultraviolet ray. CONSTITUTION:The compsn. contains a long-chain alkyl group-contg. spiropyran compd. [e.g. 1-octadecyl-3,3-dimethylindoline-2-spiro-2'-(8'-methoxy-6'-nitrobenzop yran)], a long-chain alkyl fatty acid or lower alcohol ester thereof (e.g. stearic acid or methyl stearate) and a macromolecular substance (e.g. polycarbonate). The compsn. produces a photochromic photosensitive material which develops stable color under irradiation with ultraviolet ray and loses color under heating and/or irradiation with visible light and repeats development and loss of color semi-permanently.

公开(公告)号：JPS59227972A

公开(公告)日：1984-12-21

申请号：JP10347183

申请日：1983-06-09

Applicant: SONY CORP

Inventor： KONDOU HIROFUMI ,  KAWAKADO KOUICHI ,  ARAKAWA SEIICHI ,  SETO NOBUYOSHI

IPC: C09K9/02 ,  C07D513/10 ,  C08F20/38 ,  C09K9/00 ,  G03C1/685

Abstract: PURPOSE:To provide a photosensitive material comprising a layer of a macromolecular compd. contg. a specified comonomer unit, which shows good color development even after a long period of storage and is least dependent upon temp. CONSTITUTION:The photochromic photosensitive material comprises a layer of a macromolecular compd. contg. a comonomer unit of the formula (where R1 is 1-10C alkyl; R2 is 1-5C alkoxyl, 1-5C alkyl, halogen or cyano; R3 is halogen, 1-5C alkyl, nitro or cyano; R4 is a 1-5C divalent hydrocarbon group and R5 is H or methyl). The comonomer unit is contained in the compd. in an amt. of 3- 50mol%. When the amt. is less than 3mol%, sufficient color development is unobtainable while when it exceeds 50mol%, the macromolecular compd. is difficult to obtain.