"To place a man in a multi-stage rocket and project him into the controlling gravitational field of the moon where the passengers can make scientific observations, perhaps land alive, and then return to earth--all that constitutes a wild dream worthy of Jules Verne. I am bold enough to say that such a man-made voyage will never occur regardless of all future advances."
Lee deForest, American radio pioneer ; 1957
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| Number | Title | Issue Date |
| 7365215 | Process for preparing 4-aminotetrahydropyran compound and an acid salt thereof, synthetic intermediate thereof and process for preparing the same The present invention relates to a process for preparing 4-aminotetrahydropyran compound and an acid salt thereof represented by the formula (1): wherein R represents a hydrogen atom or a hydrocarbo... | 04/29/2008 |
| 7311966 | Porous insulating film and its laminates A porous insulating film comprising a highly heat resistant resin film having a fine porous structure with a mean pore size of 0.01-5 μm in at least the center of the film, and a porosity of 15-80%. A laminate is prepared by forming a heat resistant adhesive layer ... | 12/25/2007 |
| 7300972 | Water-soluble polyimide precursor, aqueous polyimide precursor solution, polyimide, impregnated material with polyimide binder, and laminate A water-soluble polyimide precursor, which can be suitably applied for aromatic polyimides and exhibits a low reduction in heat resistance and mechanical properties, an aqueous solution of the polyimide precursor and a polyimide obtained from the precursor. A heat-r... | 11/27/2007 |
| 7294625 | Pyrazole compounds The present invention relates to pyrazole compounds represented by the formula (I): wherein R1 represents phenyl which may be substituted, R2 represents H, halogen, ... | 11/13/2007 |
| 7271281 | Preparation of 2,3,3′,4′ -biphenyltetracarboxylic acid tetraester 2,3,3′,4′-Biphenyltetracarboxylic acid tetraester is predominantly produced by a process in which a phthalic acid diester is subjected to oxidative-coupling reaction in the presence of molecular oxygen and a catalyst comprising a rhodium-containing compound.... | 09/18/2007 |
| 7265324 | Flexible heating sheet A flexible heating sheet is composed of two heat fusible aromatic polyimide films and an electric heating element having an electric source-connecting terminal at each end which intervenes between the heat fusible aromatic polyimide films, in which each heat fusible... | 09/04/2007 |
| 7261975 | Non-aqueous electrolytic solution and lithium secondary battery using the same The present invention provides a lithium secondary battery which is improved particularly in cycle characteristics. Disclosed is a lithium secondary battery which uses a non-aqueous electrolytic solution obtained by dissolving electrolyte salt in a non-aqueous solve... | 08/28/2007 |
| 7202298 | Polyamide resin composition for part of engine cooling water system and part comprising the same A polyamide resin composition for part of an engine cooling water system contains 100 parts by weight of a polyamide resin made of(A) from 50 to 98% by weight of nylon 66, (B) from 1 to 30% by weight of an aromatic polyamide resin, and (C) from 1 to 20% by weight of... | 04/10/2007 |
| 7193707 | Small sized wide wave-range spectroscope The present invention provides a small sized wide wave-range spectroscope with a simple structure which requires a short time to measure light for measurement over a wide wavelength spectrum. The small sized wide wave-range spectroscope has a collimator (43) ... | 03/20/2007 |
| 7174268 | Wireless measuring device A wireless measuring device 1 is provided which includes a plurality of child units 2 and a parent unit 3 to receive data measured by these child units 2 by wireless communication. Each of the child units 2 has a controlling sectio... | 02/06/2007 |
| 7132199 | Non-aqueous electrolyte and non-aqueous electrolyte secondary battery A non-aqueous electrolyte containing propylene carbonate and 1,3-propanesultone as additives can reduce the amount of a gas evolved during storage at a high temperature of a non-aqueous electrolyte secondary cell comprising the electrolyte, a non-aqueous electrolyte... | 11/07/2006 |
| 7105251 | Nonaqueous secondary battery A nonaqueous secondary battery comprising a positive electrode and a negative electrode both containing a material capable of reversibly intercalating and deintercalating lithium, a nonaqueous electrolyte containing a lithium salt, and a separator, which has a least... | 09/12/2006 |
| 7056975 | Thermoplastic resin composition having improved resistance to hydrolysis A thermoplastic resin composition composed of a thermoplastic resin and a polyamide elastomer in which the polyamide elastomer contains at least 50 weight % of a polyetheramide elastomer prepared by polymerization of a tri-block polyetherdiamine compound, a polyamid... | 06/06/2006 |
| 7022389 | Method of improving airtightness of hydraulic or pneumatic device with polyamide resin tube A hydraulic or pneumatic device is provided, which comprises a tube comprising a polyamide resin composition comprising (A) from 70 to 97% by weight, based on the weight of the polyamide resin composition, of a polyamide resin and (B) from 3 to 30% by weight, based ... | 04/04/2006 |
| 6927001 | Non-aqueous electrolytic solution and lithium secondary battery A non-aqueous electrolytic solution composed of two or more organic compounds dissolved in a solvent composed of a cyclic carbonate and a chain carbonate, in an amount of 0.01 to 8 weight % for each compound, in which both of the two organic compounds have a reducti... | 08/09/2005 |
| 6921428 | Device and method for separating and collecting halide gas A halide gas separating and collecting device for separating and collecting halide gas from mixed gas containing the halide gas, wherein at least first and second stage separating membrane modules are stacked in multiple stages. The method comprises: feeding the mix... | 07/26/2005 |
| 6914152 | Method for producing biphenyl and its derivatives A method for producing biphenyl and its derivative comprising oxidatively coupling a benzene aromatic compound in the presence of a catalyst comprising a palladium salt, a copper salt, and a bidentate ligand compound capable of forming a complex with the palladium s... | 07/05/2005 |
| 6911942 | Antenna apparatus and communication apparatus using the same An approximately rectangular plate-shaped radiation member (2) is provided and support portions (4,6) are attached to lower surface end portions adjacent to a pair of parallel shorter sides of the radiation member (2). The support portion (4 | 06/28/2005 |
| 6911158 | Sound absorbing material and its manufacturing method The porous sound-absorbing material manufactured is light and has excellent heat resistance to be applicable to the exhaust nozzle etc. of a jet engine, can effectively absorb noise as that from a jet engine, over a wide range of frequencies, is free from variations... | 06/28/2005 |
| 6902711 | Apparatus for treating wastes by gasification An apparatus for treating wastes includes a fluidized bed reactor for partially combusting the wastes at a relatively low temperature, and a separate relatively high temperature reactor for separate gasification of gaseous material and char from the first gasificati... | 06/07/2005 |
| 6885262 | Band-pass filter using film bulk acoustic resonator A band-pass filter has a ladder-type circuit including first and second terminals whose characteristic impedances are Z0, and series elements and shunt elements disposed between a first terminal and a second terminal, each of the series elements and shunt ele... | 04/26/2005 |
| 6881693 | Zirconia-containing inorganic fiber and process for the production thereof There are provided a high-strength zirconia-containing inorganic fiber having excellent alkali resistance, oxidation resistance, catalyst function and/or catalyst-carrying function and a process for the production thereof. The zirconia-containing inorganic fiber is ... | 04/19/2005 |
| 6866966 | Non-aqueous secondary battery having enhanced discharge capacity retention A discharge capacity retention of a non-aqueous secondary battery is enhanced by incorporating into its non-aqueous electrolytic solution a small amount of a substituted diphenyldisulfide derivative in which each of the diphenyl groups has a substituent such as alko... | 03/15/2005 |
| 6851466 | Method and apparatus for shaping semisolid metals A method of shaping a semisolid metal to provide shaped parts which are produced in a convenient, easy and inexpensive manner, without relying upon the conventional mechanical or electromagnetic agitation. The method includes feeding, without using a cooling jig, in... | 02/08/2005 |
| 6844295 | Benzoxazole compound, process for producing the same, and herbicide The present invention relates to benzoxazole compounds represented by the following formula (I): wherein R1 to R4 may be the same or different from each other, and each re... | 01/18/2005 |
| 6842088 | Thin film acoustic resonator and method of producing the same A pit (52) is formed in a substrate comprising a silicon wafer (51) on a surface of which a silicon oxide thin layer (53) is formed. A sandwich structure (60) comprising a piezoelectric layer (62) and lower and upper electrodes ( | 01/11/2005 |
| 6824827 | Method of making a polyimide film having a thin metal layer A method of surface treating a polyimide film to impart improved adhesion to metal which comprises treating the surface of a polyimide film having a biphenyltetracarboxylic acid component by contact to a solution containing potassium permanganate and/or sodium perma... | 11/30/2004 |
| 6815488 | Process for producing thermoplastic resin composition A process for producing a thermoplastic resin composition is disclosed and comprises melt-kneading a resin composition containing from 40 to 90 parts by weight of (A) a polyamide resin, from 5 to 50 parts by weight of (B) a polyphenylene ether resin, from 5 to 30 pa... | 11/09/2004 |
| 6814910 | Aromatic polyimide foam A flexible polyimide foam having an apparent density of 13.5 to 900 kg/m3 and a glass transition temperature of 300° C. or higher can be prepared by mixing an aromatic tetracarboxylic acid comprising 2,3,3′,4′-biphenyltetracarboxylic dianhydride a po... | 11/09/2004 |
| 6808818 | Fusible polyimide and composite polyimide film A fusible polyimide showing a fusion endothermic peak in a differential scanning calorimeter has a recurring unit of the following formula (1): in which Ar1 is a mixture of residues of tetracarboxylic dianhy... | 10/26/2004 |
| 6797392 | Polyimide/metal composite sheet A polyimide/metal composite sheet is composed of a metal film and a polyimide film polyimide which is prepared by reaction of asymmetric biphenyltetracarboxylic acid dianhydride and 1,3-bis(4-aminophenoxy)benzene. The polyimide film is firmly bonded to and hardly pe... | 09/28/2004 |
| 6794031 | Cover-lay film and printed circuit board having the same A cover-lay film comprising a heat-resistant film and an adhesive layer, wherein the adhesive layer is formed of an epoxy resin composition containing (a) an epoxy resin, (b) a curing agent, (c) a phenolic hydroxyl-containing polyamide-poly(butadiene-acrylonitrile) ... | 09/21/2004 |
| 6753292 | Silica-based photocatalyst fiber having visible-light activity and process for the production thereof A silica-based photocatalyst fiber having visible-light activity, which fiber comprises a composite oxide phase comprising an oxide phase (first phase) mainly made of a silica component and a titania phase (second phase), wherein the second phase contains a metal el... | 06/22/2004 |
| 6740729 | Process for producing polycarbonate A process for preparing polycarbonate is composed of the steps of transesterifying a dialkyl oxalate and a phenolic compound to give a diaryl oxalate; decarbonylating the diaryl oxalate to give a diaryl carbonate; reacting the diaryl carbonate with a polyvalent hydr... | 05/25/2004 |
| 6706346 | Process for production of metal encased polyimide molded bodies and metal encased polyimide molded bodies A process for production of polyimide molded bodies which comprises a step in which a polyimide resin powder obtained by polymerization and imidation of p-phenylenediamine with 3,3,4,4′-biphenyltetracarboxylic acid, its ester or its dianhydride and 2,3,3′,4′-b... | 03/16/2004 |
| 6699572 | Metal film/aromatic polyimide film laminate A metal film/aromatic polyimide film laminate is composed of a composite aromatic polyimide film and a metal film, in which the composite aromatic polyimide film is composed of an aromatic polyimide substrate film having a linear expansion coefficient of ... | 03/02/2004 |
| 6686482 | Process for preparing piperonal The present invention is to provide a process for producing piperonal which comprises continuous three steps of: (A) an addition reaction step wherein 1,2-methylenedioxybenzene and glyoxylic acid are reacted to form 3,4-methylenedioxymandelic acid in the ... | 02/03/2004 |
| 6664347 | Polybutadiene and process for producing the same Modified polybutadiene having a high-cis and low-trans structure with a moderate 1,2-structure content and exhibiting improved characteristics such as cold flow properties, which is obtained by modifying starting polybutadiene having a Tcp/ML1+4 | 12/16/2003 |
| 6656642 | Non-aqueous electrolytic solution and lithium secondary battery A non-aqueous electrolytic solution favorably employable for a lithium secondary battery employs a non-aqueous solvent composed of a cyclic carbonate, a linear carbonate and vinylene carbonate, and shows a reduction potential of less than 1 volt, with ref... | 12/02/2003 |
| 6653489 | Processes for producing tetrahydropyranyl-4-sulfonates and 4-aminotetrahydropyran compounds The present invention is to provide a process for producing a tetrahydropyranyl-4-sulfonate which comprises allowing 3-buten-1-ol which is easily available to react with a formaldehyde compound and an organic sulfonic acid, and a process for producing a 4... | 11/25/2003 |