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1. 发明专利

JP2003156753A LIQUID CRYSTAL INJECTION DEVICE 审中-公开
公开(公告)号：JP2003156753A
公开(公告)日：2003-05-30
申请号：JP2001353942
申请日：2001-11-20
申请人： HITACHI LTD
发明人： IWASAKI KISHIRO , ARAYA KOTARO
IPC分类号： G02F1/1341
摘要： PROBLEM TO BE SOLVED: To provide a device for manufacturing a liquid crystal display device wherein no bubble is generated, time for a reduced pressure treatment stage can be reduced, a volatile liquid crystal material can be used and no dropping trace is generated in the manufacture of a liquid crystal display device by a dropping device. SOLUTION: A dehydration device is provided between a liquid crystal storage container and a liquid crystal dropping tool.

2. 发明专利

JP2002131765A LIQUID CRYSTAL INJECTION DEVICE 失效
公开(公告)号：JP2002131765A
公开(公告)日：2002-05-09
申请号：JP2000332099
申请日：2000-10-25
申请人： HITACHI LTD
发明人： IWASAKI KISHIRO , ARAYA KOTARO , KONDO KATSUMI
IPC分类号： G02F1/1341 , G09F9/00
摘要： PROBLEM TO BE SOLVED: To provide a liquid crystal injection device and a liquid crystal injection method by which volatilization of a liquid crystal in a vacuum state is suppressed. SOLUTION: The inner wall of a vacuum vessel is specified to be a mirror surface to reduce the specific surface area for the purpose of suppressing the volatilization of the liquid crystal and the wall is coated with fluororesin to be made water repellent for the purpose of suppressing the adsorption of volatile particles onto the inner wall.

3. 发明专利

JP2001042343A LIQUID CRYSTAL FILLING DEVICE 失效
公开(公告)号：JP2001042343A
公开(公告)日：2001-02-16
申请号：JP21634299
申请日：1999-07-30
申请人： HITACHI LTD
发明人： ARAYA KOTARO , IWASAKI KISHIRO , FUNAHATA KAZUYUKI , TOMIOKA YASUSHI , KONDO KATSUMI
IPC分类号： G02F1/13 , G02F1/1341
摘要： PROBLEM TO BE SOLVED: To provide a liquid crystal filling device which is excellent in mass productivity and is simple. SOLUTION: The device for filling liquid crystals into a liquid crystal display comprises two parts, a connecting part 4 for where an exhaust air filling jig tightly fits the liquid crystal display 1 and a vacuum vessel part 11. Reduced pressure piping 8 for reducing the pressure in the vacuum vessel part and liquid crystal introducing piping 7 capable of introducing the liquid crystals of the amount necessary for packing the liquid crystal display 1 are installed to the vacuum vessel part 11. The liquid crystal introducing piping 7 is so constituted that the liquid crystals can be directly fed to the connecting part by moving toward the connecting part 4.

4. 发明专利

JP2000180873A LIQUID CRYSTAL DISPLAY ELEMENT 失效
公开(公告)号：JP2000180873A
公开(公告)日：2000-06-30
申请号：JP35094198
申请日：1998-12-10
申请人： HITACHI LTD
发明人： IWASAKI KISHIRO , ARAYA KOTARO , KONDO KATSUMI
IPC分类号： G02F1/1341
摘要： PROBLEM TO BE SOLVED: To shorten injection time by making the length of the injection hole of a liquid crystal display element smaller than the width of a sealing member. SOLUTION: A common electrode, a signal electrode, a pixel electrode or the like, are formed on a substrate, an alignment layer is formed on the top and the surface of the alignment layer is subjected to alignment treatment. A sealant is mixed with an adequate amount of polymer beads, printed on upper and lower substrates with a sealing mask and hardened while pressing the substrates wish a press to bond the substrates. In the resulting liquid crystal display element, spherical polymer beads are held between the substrates, the sealant 11 is disposed on the peripheral parts of the substrates in a liquid crystal sealed state and a liquid crystal injection hole 10 capable of injecting a liquid crystal is made in part of one minor side. The rubbing angle of the liquid crystal display element is adjusted, e.g. to 15 deg. to the minor sides and the upper and lower substrates are made parallel or substantially parallel. The width of the liquid crystal injection hole 10 is, e.g. 30 mm, the length of the hole 10 is 1 mm and the width of the seal is 1.5 mm.

5. 发明专利

JPH1020315A METHOD FOR INJECTING LIQUID CRYSTAL TO LIQUID CRYSTAL DISPLAY DEVICE 失效
公开(公告)号：JPH1020315A
公开(公告)日：1998-01-23
申请号：JP17205396
申请日：1996-07-02
申请人： HITACHI LTD
发明人： IWASAKI KISHIRO , ARAYA KOTARO , KONDO KATSUMI
IPC分类号： G02F1/1341
摘要： PROBLEM TO BE SOLVED: To shorten the liquid crystal injection time which affects mass productivity and to prevent the air bubbles and the unequal thicknesses of liquid crystal layers which affect image quality and the change of a liquid crystal compsn. which affects optical characteristics. SOLUTION: Liquid crystals are injected into liquid crystal elements 4 having spacings between two substrates in this method. The liquid crystal elements 4 provided with at least one piece of injection ports in the liquid crystal elements 4 and a liquid crystal tray 1 in which the liquid crystals are contained are put into an evacuatable vessel 6. The injection ports of the liquid crystal elements 4 are immersed into the liquid crystals in the liquid crystal tray 1 in the state of discharging the air from the inside of the vacuum vessel 6 and thereafter, the atm. pressure is restored in the vacuum vessel 6 to inject the liquid crystals into the spacings of the liquid crystal elements 4. At this time, the liquid crystal tray 1 is heated and the warmed liquid crystals are injected into the spacings of the liquid crystal elements 4.

6. 发明专利

JPH0736220A ELECTROPHOTOGTRAPHIC TONER 失效
公开(公告)号：JPH0736220A
公开(公告)日：1995-02-07
申请号：JP17880993
申请日：1993-07-20
申请人： HITACHI LTD
发明人： IWASAKI KISHIRO , SASAKI HIROSHI , MURAO KENJI
IPC分类号： G03G9/097
摘要： PURPOSE:To make possible preservation over a long period of time by incorporating a specified compd. as an electrostatic charge controlling agent. CONSTITUTION:This electrophotographic toner contains one or more kinds of compds. represented by the formula [where R is 0-16C alkylene, phenylene, phenylenebis (methylene), 4-8C cycloalkane or naphthylene, each of X -X is methylene or carbonyl and each of Y -Y is pyridine or phenyl]. An electrostatic charge controlling agent is produced as follows: 98 pts.wt. 10wt.% soln. of a styrene-butyl acrylate copolymer in THF is added to 2 pts.wt. N,N',N',N '-tetrakis (2-pyridyl-methyl) ethylenediamine represented by the formula (where R is ethylene, each of X -X is methylene and each of Y -Y is pyridmne bonding to the adjacent one of X -X at the 2-position) and they are well mixed.

7. 发明专利

JPH06145109A OPTICALLY ACTIVE ESTER 失效
公开(公告)号：JPH06145109A
公开(公告)日：1994-05-24
申请号：JP33000491
申请日：1991-11-19
申请人： CHISSO CORP , HITACHI LTD
发明人： INUKAI TAKASHI , FURUKAWA KENJI , TERAJIMA KENJI , SAITO SHINICHI , ISOGAI MASATO , HATTORI SHINTARO , IWASAKI KISHIRO , KITAMURA TERUO , KOBI AKIO
IPC分类号： C07C69/78 , C09K19/06 , C09K19/20 , G02F1/13
摘要： PURPOSE:To provide a new optically active p-bromomethylbenzoic ester compound useful as an intermediate for ferroelectric liquid crystal compounds excellent in the response for image display. CONSTITUTION:The objective optically active p-bromomethylbenzoic ester compound of formula I (R* is 4-12C optically active 1-methylalkyl such as 4-12C optically active 2-methylbutyl), e.g. S-p-bromomethylbenzoic 1-methylbutyl ester. The compound of the formula I is obtained by brominating p-toluyl chloride followed by reaction with an optically active alcohol. Reaction of the compound of the formula I with e.g. p-alkylphenol gives a liquid crystal compound of formula II (R is 1-20C alkyl or 1-20C alkoxy; m is 1 or 2) which is a highly light-resistant ferroelectric liquid crystal giving large spontaneous polarization.

8. 发明专利

JPH0418391A FORMATION OF ORGANIC OPTICAL INFORMATION RECORDING MEDIUM 失效
公开(公告)号：JPH0418391A
公开(公告)日：1992-01-22
申请号：JP12134290
申请日：1990-05-14
申请人： HITACHI LTD
发明人： IWASAKI KISHIRO , KOBAYASHI SETSUO , NAKAMURA MARIKO , SASAKI HIROSHI , ITO YUTAKA
IPC分类号： B41M5/26 , G11B7/24 , G11B7/244 , G11B7/26
摘要： PURPOSE:To uniformly apply an org. optical recording medium solution to the entire surface of a substrate by allowing the speed of a substrate to coincide with the peripheral speed of a roll in forming a recording medium on a disk substrate by dripping the org. optical recording medium solution adjusted to specific viscosity on the roll to transfer the same from the roll to the disk substrate. CONSTITUTION:An optical recording medium 7 whose viscosity is adjusted to 0.1-100 mPa.s is received in a syringe and dripped to a doctor roll 1 or to the nip of the doctor roll 1 and an anilox roll 2 to be spread on the anilox roll 2 in uniform thickness and transferred to the printing plate 4 mounted on a plate cylinder 3 and further formed to a disk substrate 5 by the printing pressure of the printing plate 4 when the disk substrate provided to a slide table 6 passes under the printing plate 4. The gap between the doctor roll and the anilox roll is important in the dermination of the thickness of the film formed to the disk substrate and set to 10-100 mum. Further, the value of relative speed of the speed of the moving table having the disk substrate mounted thereon and that of the plate cylinder is brought close to zero as much as possible.

9. 发明专利

JPH03256790A OPTICALLY FUNCTIONAL MEDIUM AND MANUFACTURE THEREOF 失效
公开(公告)号：JPH03256790A
公开(公告)日：1991-11-15
申请号：JP5365390
申请日：1990-03-07
申请人： HITACHI LTD
发明人： NAKAMURA MARIKO , IWASAKI KISHIRO , KOBAYASHI SETSUO , SASAKI HIROSHI , ITO YUTAKA
IPC分类号： B41M5/26 , G11B7/24 , G11B7/244 , G11B7/26
摘要： PURPOSE:To enhance the solubility to a solvent such as alcohol and to form a film having sufficient thickness by dissolving a near infrared or visible light absorbing dye in a mineral acid or a liquid mixture of the mineral acid and alcohol and evaporating the resulting solution to dryness to dissolve the obtained dry matter in an org. solvent and applying the solvent solution to a resin substrate. CONSTITUTION:A near infrared or visible light absorbing dye is dissolved in a mineral acid or a liquid mixture of the mineral acid and alcohol and the resulting solution is evaporated to dryness and the obtained dry matter is dissolved in an org. solvent to be applied to a resin substrate. As the near infrared or visible light absorbing dye, for example, a cyanine dye is pref. The resin substrate is pref. formed from an injection moldable resin, for example, a polycarbonate resin. As the mineral acid, hydrohalogenic acid such as hydrobromic acid or the like is used but hydrochloric acid is especially pref. This treatment is effective for the dissolution of the dye because the dye forming a salt or the dye having oxygen of a double bond is dissolved in the mineral acid and positive charge is increased or imparted to the dye.

10. 发明专利

JPH0118404B2 失效
公开(公告)号：JPH0118404B2
公开(公告)日：1989-04-05
申请号：JP19231183
申请日：1983-10-17
申请人： HITACHI LTD
发明人： IWASAKI KISHIRO , ISOGAI MASATO , KOBI AKIO , NAGAE KEIJI , MORI JUJI
IPC分类号： G02F1/13 , G02F1/133 , G02F1/1337

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