Did You Know...
...that several people are credited with the invention of the flush toilet? Most people have heard of Thomas Crapper (1837-1910), the sanitary engineer who invented the valve-and-siphon arrangement that made the modern toilet possible. Another claimant to "the throne" was British inventor Alexander Cumming who patented a toilet in 1775. Then there's a nameless Minoan (a native of ancient Crete) who lived 4,000 years ago who supposedly was ahead of his time and created the first flush toilet!
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 6884553 | Near-field optical recording medium and near-field optical recording method A near-field optical recording medium comprises a recording layer capable of writing, reading and erasing information using an evanescent light, the evanescent light having a beam spot size smaller than the wavelength of a source light, wherein the recording layer i... | 04/26/2005 |
| 6875491 | Polycarbonate composition, write once read many optical disc substrate and write once read many optical disc using same and process for production of write once read many optical disc A polycarbonate composition excellent in both antistatic property and coloring matter coatability containing (a) a polycarbonate obtained by an ester exchange process, and (b) a compound having a molecular weight of from 300 to 8,000 and having any of ester bond, ca... | 04/05/2005 |
| 6866706 | Ink for thermal transfer, sheet for thermal transfer, and thermal transfer recording method using the same A thermal transfer ink is provided, which includes: at least one dye (a); at least one dye selected from the group including dye (b), dye (c) and a mixture thereof; and a medium; wherein ... | 03/15/2005 |
| 6863845 | Organic metal complex, infrared-absorbing dye and infrared absorption filter containing it, and filter for plasma display panel An organic metal complex having the formula (I): wherein X, M, X1-X10 and R1-R8 are as defined herein, having near infrared absorption with visible light transmittance. ... | 03/08/2005 |
| 6847541 | Information storage device, and information storage method and information regeneration method employing the information storage device An information storage device which has a layer containing such bistable molecules that the molecular structure reversibly changes due to an isomerization reaction, at least one reaction of the isomerization reaction is caused by electric carrier injection, and the ... | 01/25/2005 |
| 6846518 | Continuous production method of water-absorbing composite This invention discloses a continuous production method of water-absorbing composite which comprises a complexation step for producing a particle-substrate composite by dropwisely supplying an aqueous solution of polymerizable monomers consisting mainly of an unsatu... | 01/25/2005 |
| 6838068 | Silica gel A method of producing a silica gel by hydrolyzing a silicon alkoxide and subjecting the resulting hydrogel to a hydrothermal treatment substantially without aging it is described. Also described in a silica gel produced by such a method and a silica gel which has th... | 01/04/2005 |
| 6836383 | Diphenylsquarylium compound and filter for display containing the same The object of the invention is to provide a diphenylsquarylium compound which has a sharp minimum value within the wavelength range of from 550 to 610 nm in the light transmittance curve and from which a filter causing no reduction of brightness of the visual field ... | 12/28/2004 |
| 6827770 | Metal chelated dyestuff for inkjet recording, aqueous inkjet recording liquid comprising same and inkjet recording method using same A metal chelated dyestuff for inkjet recording comprising a water soluble azo metal chelated compound formed by an azo-based compound represented by the following general formula (1) having one or more hydrophilic group per molecule and a metal element; an aqueous i... | 12/07/2004 |
| 6827458 | Planar light source device A planar light source device including a light guide pipe with one surface thereof serving as a light radiation surface, a light extracting mechanism provided to the light guide pipe, a light source provided to a side edge portion of the light guide pipe, and a ligh... | 12/07/2004 |
| 6824938 | Electrophotographic photoreceptor An electrophotographic photoreceptor having at least an undercoat layer and a photosensitive layer on an electroconductive substrate, wherein at least one layer of the undercoat layer contains a naphthalocyanine compound of the following formula (1): | 11/30/2004 |
| 6815080 | Thermoplastic resin composition and multi-layer laminate The present invention relates to a thermoplastic resin composition comprising an ethylene-vinyl alcohol copolymer and a modified polyester type thermoplastic elastomer produced by modifying a polyester type thermoplastic elastomer with an unsaturated carboxylic acid... | 11/09/2004 |
| 6815033 | Compound, optical recording medium and optical recording method An optical recording medium comprising a substrate and a recording layer on which recording and readout of information can be carried out by laser. ... | 11/09/2004 |
| 6811949 | Optical information recording medium and optical recording method An optical information recording medium having a multilayer structure comprising at least a lower protective layer, a phase-change type optical recording layer, an upper protective layer and a reflective layer, on a substrate, wherein the phase-change type optical r... | 11/02/2004 |
| 6808861 | Positive photosensitive composition positive photosensitive lithographic printing plate and method for making positive photosensitive lithographic printing plate A positive photosensitive composition showing a difference in solubility in an alkali developer as between an exposed portion and a non-exposed portion, which comprises, as components inducing the difference in solubility, (a) a ph... | 10/26/2004 |
| 6807213 | Semiconductor optical device apparatus This application discloses a semiconductor optical device apparatus having on a substrate, at least, a compound semiconductor layer containing an active layer, a protection film having a stripe-shaped opening formed on the compound semiconductor layer, and a ridge t... | 10/19/2004 |
| 6806206 | Etching method and etching liquid A silver or silver alloy thin layer on a substrate is etched by an etching liquid uniformly without producing an etching residue while avoiding side etching due to over etching. The etching liquid contains silver ions in a range from 0.005 to 1 weight %. The etching... | 10/19/2004 |
| 6803163 | Electrophotographic photoreceptor A high-sensitivity and long-life electrophotographic photoreceptor comprising an electroconductive substrate and at least a photosensitive layer on the electroconductive substrate is provided, wherein the photosensitive layer contains a polyarylate resin not having ... | 10/12/2004 |
| 6797656 | Water-absorbing composites, preparation processes thereof and water-absorbing articles A water-absorbing composite, containing water-absorbing polymer particles immobilized on a fibrous substrate wherein at least a part of said water-absorbing polymer particles consist of primary particles having an average particle diameter of about 50-1000 μm, wher... | 09/28/2004 |
| 6794114 | Optical recording medium The object of the present invention is to provide an optical recording medium which is excellent in the recording sensitivity and suitable for the high speed recording. Thus, the present invention is an optical recording medium comprising a substrate and a la... | 09/21/2004 |
| 6791181 | Semiconductor light emitting device The present invention discloses a semiconductor light emitting device comprising at least one semiconductor light emitting element of edge-emission type, a first heat sink and a second heat sink, wherein at least a part of an electrode for the first-conduction-type ... | 09/14/2004 |
| 6787153 | Human monoclonal antibody specifically binding to surface antigen of cancer cell membrane A human monoclonal antibody specifically binding to a surface antigen of cancer cell membrane, an isolated DNA encoding the antibody, and a hybridoma producing the antibody. An anti-cancer formulation comprising the monoclonal antibody bonded to the surface of a lip... | 09/07/2004 |
| 6777570 | Process for producing norbornene derivative having organosilyl group A process for producing a norbornene derivative having an organosilyl group suitable as a synthetic intermediate for pesticides and medicaments and for production of polyolefin polymers, particularly polyolefin polymers having a good adhesiveness with metals or insu... | 08/17/2004 |
| 6773104 | Ultraviolet filter coating The application discloses a two-layered coating system using an ultraviolet absorber in its inner layer (called the blocking layer), furthest away from the source of ultraviolet exposure, with a fluorescent material that reflects ultraviolet radiation back as blue l... | 08/10/2004 |
| 6771867 | Optical memory device and method for fabricating optical memory device, and method and apparatus for lamination with filmy member An optical memory device is specifically so designed that, when an reference beam is applied thereto, the entire information area of its core layer can receive the reference beam all at a time to surely reconstruct a correct image. The optical memory device includes... | 08/03/2004 |
| 6771579 | Optical recording method and optical recording medium An optical recording method for an optical recording medium having a recording layer containing an organic colorant on a transparent substrate, which comprises applying a recording laser beam divided into n−2 (wherein n is an integer of at least 2) pulses (or into... | 08/03/2004 |
| 6767671 | Non-aqueous electrolytic solution and secondary battery containing same A non-aqueous electrolytic solution capable of depressing deterioration of battery properties in a high temperature environment is provided. A secondary battery is also provided. The non-aqueous electrolytic solution containing at least an organic solvent and a lith... | 07/27/2004 |
| 6765052 | Olefin type thermoplastic elastomer An olefin type thermoplastic elastomer which satisfies the following formulae (I) to (III): Y≦−2X+350 (I) X | 07/20/2004 |
| 6765070 | Copolymerized polyester resin composition and stretched film A copolymerized polyester resin composition comprising the following polyethylene terephthalate resin (A) and a polybutylene terephthalate resin (B), wherein the proportion of the resin (A) is from 50 to 95 wt %, and the proportion of the resin (B) is from 5 to 50 w... | 07/20/2004 |
| 6759104 | Photocurable composition, cured product and process for producing the same A photocurable composition, wherein a small amount of an alicyclic skeleton-containing mono(meth) acrylate is incorporated in a combination of an alicyclic skeleton-containing bis(meth)acrylate and a mercapto compound, a cured product obtained by the copolymerizatio... | 07/06/2004 |
| 6756453 | Alicylic epoxy compounds and their preparation process, alicylic epoxy resin composition, and encapsulant for light-emitting diode The present invention relates to alicyclic epoxy compounds obtained by selectively hydrogenating aromatic rings of aromatic epoxy compounds in the presence of a hydrogenation catalyst, the concentration of the platinum group element in the product alicyclic epoxy co... | 06/29/2004 |
| 6755903 | Metal chelated dyestuff for inkjet recording and aqueous inkjet recording liquid using the same A metal chelated dyestuff for inkjet recording is described, which is a water soluble azo metal chelated compound formed from an azo compound represented by the following general formula (1) and a metal element and is good at the clearness of color tone, light resis... | 06/29/2004 |
| 6753053 | Laminated film and packaging bag The laminated film of the present invention comprises: an outermost layer (A) comprising a polybutylene terephthalate homopolymer, a polybutylene terephthalate copolymer or a mixture of the polybutylene terephthalate homopolymer and the polybutylene terephtha... | 06/22/2004 |
| 6750314 | Process for producing an aromatic polycarbonate To produce an aromatic polycarbonate excellent in physical properties and hue by a simplified step as compared with a conventional one. A process for producing an aromatic polycarbonate, which comprises the following steps (1) to (3): (1) a step of rea... | 06/15/2004 |
| 6746629 | Squarylium compounds, filters for plasma display panels employing them, and plasma display panel devices Coloring matters and filters for plasma display panels, which can effectively screen the neon emission radiated from plasma display panels. Squarylium compounds represented by the following formula (I): [in the formula (... | 06/08/2004 |
| 6744066 | Semiconductor device and method for manufacturing the same The semiconductor device according to the present invention comprises a V-groove having V-shaped cross-section formed on a semiconductor substrate or on an epitaxial growth layer grown on a semiconductor substrate, and an active layer is provided only at the bottom ... | 06/01/2004 |
| 6744074 | Compound semiconductor light emitting device and method of fabricating the same Compound semiconductor light emitting devices capable of suppressing the surface state density on the facets of semiconductor light emitting devices such as semiconductor lasers for a long time and stable operating even when the passivation layer diffuses can be eas... | 06/01/2004 |
| 6738200 | Projection lens A subject for the invention is to provide a lens which is lightweight and inexpensive and, despite this, which is large and has a high-precision aspherical reflecting surface reduced in distortion. The invention provides: a projection lens comprising a resin ... | 05/18/2004 |
| 6737517 | Metal chelated azo dyestuff for inkjet recording and recording liquid for inkjet and inkjet recording method using same A metal chelated azo dyestuff containing at least one hydrophilic group and having formula (1): wherein M is a metal; A, B and C are each independently a substituted or unsubstituted aromatic ring; D is an aromatic ring ... | 05/18/2004 |
| 6737474 | Modified polyvinyl acetal resin, curable resin composition containing the same, and laminated products Disclosed are a modified polyvinyl acetal resin consisting essentially of repeating units represented by the following formula (I), and a modifier for curable resins which comprises the modified polyvinyl acetal resin: w... | 05/18/2004 |
