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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Nakano; Fumio
Address:
Hitachi, JP
No. of patents:
20
Patents:












Patent Number Title Of Patent Date Issued
RE33120 Method for driving liquid crystal element employing ferroelectric liquid crystal November 28, 1989
A method for driving a liquid crystal element including a ferroelectric liquid crystal sandwiched between a pair of substrates having electrodes on their opposite surfaces is disclosed. A pulse voltage for defining the light transmitting state of the liquid crystal element is applied to
5223342 Magnetic recording medium having a lubricating layer comprising a binder and specified perfluoro June 29, 1993
A magnetic recording medium comprising a non-magnetic substrate and a magnetic layer formed thereon, at least the surface portion of said magnetic layer being made from an organic compound having a perfluoro group and a hydrocarbon group is excellent in durability and exhibits good l
5219651 Magnetic recording apparatus comprising a magnetic recording medium and a magnetic head each coa June 15, 1993
A magnetic recording medium which comprises a non-magnetic substrate, a thin film magnetic layer formed on the surface of the substrate and an organic thin film protective layer formed on the magnetic layer, the organic thin film protective layer having a thickness of not more than 100
5079062 Magnetic recording medium having a thin film magnetic layer formed over a non-magnetic substrate January 7, 1992
In a magnetic recording medium in which a thin film of a magnetic material is disposed on a surface of a base of a non-magnetic material directly or through an undercoated film, powder of a material substantially the same as that of the non-magnetic base or an undercoated film is dispose
5071715 Magnetic recording medium with a lubricant layer containing a perfluoro polyoxyalkyl compound December 10, 1991
A magnetic recording medium comprising a non-magnetic substrate and a magnetic layer formed thereon, at least the surface portion of said magnetic layer being made from an organic compound having a perfluoro group and a hydrocarbon containing group is excellent in durability and exhi
4970575 Semiconductor device November 13, 1990
A substrate and semiconductor chips are connected by solder bumps and a vacant space around the solder bumps is coated with resin in such a degree that the tops of the semiconductor chips are not coated therewith. Epoxy resin or a resin having a smaller thermal expansion coefficient than
4828924 Magnetic recording medium May 9, 1989
A magnetic recording medium of high durability comprising a substrate material and a magnetic layer provided on at least one surface of the substrate material, the magnetic layer comprising magnetic powder and a resinous binder, characterized in that the magnetic layer comprises furt
4825284 Semiconductor resin package structure April 25, 1989
A semiconductor resin package structure formed according to the flip-chip connection method and permitting to cool the rear surface of semiconductor chips, comprising semiconductor chip and carrier substrate which is soldered on one surface thereof to electrodes of the semiconductor chip
4803000 Lubricant for cold plastic working of aluminum alloys February 7, 1989
A lubricating composition comprising (A) at least one member selected from (a) a polyoxyalkylene alkyl ether phosphate diester, (b) a polyoxyalkylene alkylphenyl ether phosphate diester and (c) a phosphonate ester, in an amount of 3% by weight or more, (B) an N,N'-ethylenebis acid amide
4657685 Emulsion type liquid lubricant for metal forming, process for preparing the lubricant and proces April 14, 1987
A substantially water-free, emulsion type liquid lubricant for metal forming which comprises:(a) a lubricating oil,(b) at least one of phosphoric acid esters represented by the general formula: ##STR1## wherein R is alkyl, alkylalkenyl or aryl; n is an integer of 1 to 2, and (c)
4612128 Lubricant for plastic working of metals September 16, 1986
A lubricating composition comprising (a) a lubricating oil, (b) at least one phosphite ester of pentaerythritol, and (c) at least one compound selected from phosphate monoesters and diesters and phosphonates is suitable for metal forming, particularly for plastic working of aluminum
4612127 Lubricant for metal forming and process for metal forming September 16, 1986
A substantially water-free, liquid lubricant for metal forming, which comprises a lubricating oil, and at least one of linearly condensed phosphorus compounds represented by the following general formula (1):wherein m is an integer of 0, 1, . . . , n+1, n is an integer of 2 to 6, and M i
4586791 Optical modulation element with surface parallel and unidirectional alignment of LC May 6, 1986
A liquid crystal optical modulation element is disclosed. The modulation element comprises two transparent substrates positioned so as to face each other; a transparent electrode provided on the facing surface of the transparent substrates; a transparent insulating/orientation control la
4508429 Method for driving liquid crystal element employing ferroelectric liquid crystal April 2, 1985
A method for driving a liquid crystal element including a ferroelectric liquid crystal sandwiched between a pair of substrates having electrodes on their opposite surfaces is disclosed. A pulse voltage for defining the light transmitting state of the liquid crystal element is applied to
4490496 Moistureproof insulating coating composition for packing circuit boards December 25, 1984
A coating composition comprising (A) a thermoplastic resin having a glass transition temperature of 0.degree. to 80.degree. C., (B) a compound having 2 or more hydroxyl groups in the molecule, (C) a thixotropic agent and (D) a solvent, and said coating composition having a viscosity of 3
4469409 Homogeneous alignment layer for liquid crystal display device September 4, 1984
A liquid crystal display device comprises transparent electrode substrates having an aligning coating film of a homogeneous mixture comprising a silanol oligomer modified by an aromatic ring-containing silane group, and an organic polymer at the electrode side, where the heat resistance
4400059 Liquid crystal display device August 23, 1983
A color liquid crystal display device wherein a nematic liquid crystal to which a dichroic dye and an optically active substance have been added is used as the liquid crystal layer and the amount of said optically active substance added is so selected as to fall in a range making steep t
4396251 Pleochroic color display device August 2, 1983
A pleochroic color display device is provided which comprises a layer of guest-host type liquid crystal sandwiched between two transparent electrodes for driving the liquid crystal, the guest-host liquid crystal containing a dichroic dye as guest material, and a color filter disposed
4381886 Liquid crystal display element May 3, 1983
A liquid crystal display element which may have a multi-layer structure comprising substrates having electrodes and liquid crystal orientation controlling films on the sides thereof facing a liquid crystal layer and one or more liquid crystal layers interposed between said substrates,
4362771 Liquid crystal display element with gap controlling material and process for production thereof December 7, 1982
This invention relates to a liquid crystal display element comprising a pair of transparent substrates, electrodes formed on the individual surfaces thereof facing each other, a liquid crystal material layer held between the substrates, and gap controlling material for keeping the gap










 
 
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