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91. 发明专利

JPH0466857B2 失效
公开(公告)号：JPH0466857B2
公开(公告)日：1992-10-26
申请号：JP21937883
申请日：1983-11-24
申请人： HITACHI LTD
发明人： YOKOKURA HISAO , ERA SUSUMU , ABE HIDETOSHI , NAKADA TADAO , KITAMURA TERUO , KOBI AKIO
IPC分类号： C09K19/12 , C07C67/00 , C07C201/00 , C07C205/42 , C07C205/43 , C07C205/57 , C09K19/20 , C09K19/30 , G02F1/13

92. 发明专利

JPH0250886A OPTICAL INFORMATION RECORDING MEDIUM AND PRODUCTION THEREOF 失效
公开(公告)号：JPH0250886A
公开(公告)日：1990-02-20
申请号：JP19990088
申请日：1988-08-12
申请人： HITACHI LTD
发明人： ERA SUSUMU , KOBAYASHI SETSUO , IWASAKI KISHIRO , NAKAMURA MARIKO , SATO YOSHIO , MINEMURA HIROYUKI , TSUBOI NOBUYOSHI
IPC分类号： B41M5/26 , C09B47/04
摘要： PURPOSE:To obtain an optical information recording medium superior in tracking accuracy by specifying the dimension of the depth of a grove or pit of a substrate coated with an organic solution of a dye or dye composition. CONSTITUTION:An optical information recording medium is provided with a recording layer 1 mainly composed of a dye or dye composition on a substrate 3 having guide grooves 2 or wobbled pits, furthermore being provided with an undercoat layer, a protective layer, and others, as necessary. When the undercoat layer is applied by coating, the depth of the guide grooves or wobbled pits after the coating of the undercoat layer or the recording layer is determined to be lambda8/n+ or -10nm (where lambda represents a wavelength of a regenerated light, and (n) represents the refractive index of the substrate). In addition, for the material of the substrate, a glass and a plastic are preferably used. These materials are provided with guide grooves or wobbled pits by a photopolymerizing method, a casting method, an injection molding method, or the like.

93. 发明专利

JPH0250885A OPTICAL INFORMATION RECORDING MEDIUM AND PRODUCTION THEREOF 失效
公开(公告)号：JPH0250885A
公开(公告)日：1990-02-20
申请号：JP19989988
申请日：1988-08-12
申请人： HITACHI LTD
发明人： ERA SUSUMU , KOBAYASHI SETSUO , NAKAMURA MARIKO , IWASAKI KISHIRO
IPC分类号： B41M5/26 , C09B47/04
摘要： PURPOSE:To enhance a resistance to solvent of a resin substrate, surface reflecting properties, recording sensitivity, and recording regeneration characteristics, such as S/N ratio, by a method wherein the surface of an undercoat layer is made of a plasma- treated silicone resin layer. CONSTITUTION:In the production of an optical information recording medium provided with a recording layer 1 of an organic film mainly composed of a naphthalocyanine dye shown by a formula (I) on a resin substrate 2 through an undercoat layer 5, a silicone resin solution is applied as the undercoat layer, dried or set, and plasma-treated under a reduced pressure not more than 100 torr until the contact angle of the surface of the silicone resin undercoat layer to water is reduced to 40 degrees or under. At this time, an oxygen plasma treatment is preferably conducted. Then, a recording medium provided with the recording layer having a superior adhesion with the under coat layer and a uniform film thickness can be produced. As the silicone resin used for the undercoat layer, every silicone resin which is soluble in a solvent, such as alcohol, never corroding the resin substrate can be used, but that of a two-pack type and curing at a temp. of 150 deg.C or below is preferable. The thickness of the undercoat layer is preferably 50-2,000Angstrom .

94. 发明专利

JPH0117262B2 失效
公开(公告)号：JPH0117262B2
公开(公告)日：1989-03-29
申请号：JP20467783
申请日：1983-11-02
申请人： HITACHI LTD
发明人： ERA SUSUMU
IPC分类号： C08G73/00 , C08G73/10 , H01L23/29 , H01L23/31

95. 发明专利

JPS6465133A AROMATIC POLYIMIDE-ETHER AND ITS USE 失效
公开(公告)号：JPS6465133A
公开(公告)日：1989-03-10
申请号：JP22191187
申请日：1987-09-07
申请人： HITACHI LTD
发明人： NISHIKAWA AKIO , ERA SUSUMU , ASANO HIDEKI
IPC分类号： H01L23/29 , C08G73/10 , C09D179/08 , H01L21/312 , H01L23/31
摘要： PURPOSE:To obtain the title polymer having good heat resistance and excellent moldability and useful for containers of electrical components, insulation films for multilayer interconnection of LSI, oriented films for chip protective film liquid crystals for shielding alpha-rays, etc., having repeating units of specified formulas. CONSTITUTION:An aromatic polyimide-ether having repeating units of formula I (wherein R1-R4 are each H, a lower alkyl, an alkoxyl, Cl or Br, R5 and R6 are each H, CH3, C2H5, CF3 or CCl3). This polymer has good heat resistance and excellent moldability, it soluble in an organic solvent and is suitable for coating. It can be obtained by polymerizing a tetracarboxylic acid dianhydride of formula II (wherein R1-R6 are as defined above) with a bis[4-(4- aminophenoxy)phenyl]alkane compound of formula III (wherein R1-R6 are as defined above).

96. 发明专利

JPS6456730A AROMATIC POLYAMIDE ETHER 失效
公开(公告)号：JPS6456730A
公开(公告)日：1989-03-03
申请号：JP21280087
申请日：1987-08-28
申请人： HITACHI LTD
发明人： NISHIKAWA AKIO , ERA SUSUMU , ASANO HIDEKI
IPC分类号： C08G69/40
摘要： PURPOSE:To obtain the titled polymer having excellent heat-resistance, moldability, adhesivity and solubility and useful for coating, etc., by reacting a bis[4-(4-aminophenoxy)phenyl]alkane with a bis[4-(4-carbonylphenoxy) phenyl[alkane. CONSTITUTION:The objective polymer having the recurring structural unit of formula III can be produced by dissolving (A) bis[4-(4-aminophenoxy) phenyl]alkanes of formula I (R1-R4 are H, lower alkyl, lower alkoxy, Cl or Br; R5 and R6 are H, methyl, ethyl, trifluoromethyl or trichloromethyl) in a solvent, cooling the solution in the presence of an alkali and dripping (B) bis[4-(4-chlorocarbonylphenoxy)phenyl]alkanes of formula II to the solution, thereby reacting the components with each other.

97. 发明专利

JPS6451436A AROMATIC IMINO-ISOINDOLINE ETHER COMPOUND 失效
公开(公告)号：JPS6451436A
公开(公告)日：1989-02-27
申请号：JP20634387
申请日：1987-08-21
申请人： HITACHI LTD
发明人： NISHIKAWA AKIO , ERA SUSUMU
IPC分类号： C08G73/06
摘要： PURPOSE:To obtain the title compound excellent in heat resistance and moldability and suitable for, e.g., a coating excellent in adhesiveness, by addition-polymerizing a 2,2-bis[4-(4-phthalonitrilephenoxy)phenyl]alkane compound with an aromatic diamine compound. CONSTITUTION:The title compound having repeating units of formula IV is obtained by addition-polymerizing a 2,2-bis[4-(4-phthalonitrilephenoxy) phenyl]alkane compound of formula I (wherein R1-4 are each H, a lower alkyl, a lower alkoxyl, Cl, Br or F, and R5-6 are each H, CH3 or CF3) with an aromatic diamine compound of formula II (wherein A is a bivalent organic group containing at least one aromatic ring, such as a group of formula III) in such a ratio that two CN groups are present per NH2 group.

98. 发明专利

JPS63270788A LIQUID CRYSTAL COMPOSITION 失效
公开(公告)号：JPS63270788A
公开(公告)日：1988-11-08
申请号：JP10429187
申请日：1987-04-30
申请人： HITACHI LTD
发明人： ERA SUSUMU , KOBAYASHI SETSUO , YOKOKURA HISAO , KOBI AKIO
IPC分类号： C09K19/60
摘要： PURPOSE:To provide a liq. crystal compsn. which permits effective utilization of semiconductor laser beam and gives display with excellent contrast, and which comprises a liq. crystal compd. exhibiting a smectic intermediate phase at temps. within a particular range and, added thereto, a naphthalocyanine pigment. CONSTITUTION:A desirable liq. crystal compsn. is obtd. by adding 0.1-10pts.wt. naphthalocyanine pigment of formula II to 100pts.wt. liq. crystal compd. exhibiting a smectic intermediate phase at temps. within a particular range [e.g., a compd. contg. a cyanobiphenyl compd. of formula I (wherein R' is an 8-12C straight-chain alkyl, straight-chain alkoxy), etc.]. In the formula II, R1-R4 are each H, alkyl, aryl, aralkyl, NO2, SO3H, halogen, etc.; n is 1-6; Y1 and Y2 are each -R9, -Ar, -OAr, -OSi(R9)3, etc. wherein R9 is 1-18C alkyl; Ar is (substd.)phenyl, (substd.)benzyl; and M is Al, Ti, Si, Ge, Sn, with the proviso that M is Al, only Y1 is bonded to M. In a liq. crystal display unit wherein a recording method employing thermoelectrical-optical effect is adopted, the compsn. permits effective absorption of laser beam, esp. semiconductor laser beam, so that display with excellent contrast can be obtd.

99. 发明专利

JPS62174724A LIQUID CRYSTAL DISPLAY ELEMENT 失效
公开(公告)号：JPS62174724A
公开(公告)日：1987-07-31
申请号：JP1590186
申请日：1986-01-29
申请人： HITACHI LTD
发明人： YOKOKURA HISAO , NAKADA TADAO , ERA SUSUMU , HANAWA YASUO , IWASAKI KISHIRO , KITAMURA TERUO , KOBI AKIO , NARAHARA TOSHIKAZU , SHINDO YASUHIKO
IPC分类号： G02F1/133 , C08G73/10 , G02F1/13 , G02F1/1333 , G02F1/1337 , G02F1/139
摘要： PURPOSE:To prevent the generation of a scattering domain and to provide a titled element having excellent mass productivity by forming an orientation control film which consists of a long chain hydrocarbon-contg. polymer and has >=3 deg. tilt angle between an electrode and liquid crystal phase. CONSTITUTION:Polyhydrazide acid varnish is coated on the substrate electrode and is calcined at 300 deg.C to form a polyhydrazide imide film having >=3 deg. tilt angle. The upper and lower electrode substrates are subjected to a rubbing treatment to adjust the twist angle of the liquid crystal molecules to 200-250 deg.. A nematic liquid crystal material added with 0.5wt% optically active substance is vacuum-sealed between the substrates. Since the orientation control film having the large tilt angle is formed in the above-mentioned manner, the generation of the scattering domain is eliminated and the display element having excellent mass productivity is obtd.

100. 发明专利

JPS62169122A LIQUID CRYSTAL DISPLAY ELEMENT 失效
公开(公告)号：JPS62169122A
公开(公告)日：1987-07-25
申请号：JP1016586
申请日：1986-01-22
申请人： HITACHI LTD
发明人： YOKOKURA HISAO , NAKADA TADAO , ERA SUSUMU , HANAWA YASUO , IWASAKI KISHIRO , KITAMURA TERUO , KOBI AKIO , NUMATA SHUNICHI , FUJISAKI KOJI , SHINDO YASUHIKO
IPC分类号： G02F1/133 , G02F1/1337 , G09F9/35
摘要： PURPOSE:To obtain a liquid crystal element suitable for mass production generating no scattering domain by using specified fluorine-contg. polymer between an electrode and a liquid crystal phase. CONSTITUTION:Orientation control film comprising fluorine-contg. polymer is used between an electrode and a liquid crystal phase in a liquid crystal element having twisted spiral structure within a range from 200 deg.C-250 deg.C. Such orientation control film having >=3 deg. tilt angle is prepd. by carrying out, for example, polycondensation reaction of a diamine compd. and a dibasic acid hydrazide, etc., with tetracarboxylic anhydride and halogenated dibasic acid, etc. Further, polycondensed polymers may be mixed with each other, or a silane coupling agent, SiO2, Al2O3, TiO2, etc., may e used in combination therewith.

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