U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Celebrity Inventors

Glam girl Heddy Lamar may have used her good looks to good effect on the silver screen, but she put her smarts to better use as an inventor. During World War II, she co-patented a frequency-switching system for torpedo guidance that was considered years ahead of its time.

Newsletter  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.

 

Assignee: Nippon Steel Chemical Co., Ltd.


Location: Tokyo, JP
No. of patents: 151

1        
NumberTitleIssue Date
8163443Photosensitive resin composition for volume phase hologram recording and optical information recording medium using the same
Disclosed is a volume phase hologram recording material characterized by excellent photosensitivity, low cure shrinkage, high transparency, and particularly good storage stability and also disclosed is a recording medium prepared therefrom. Further disclosed is a ph...
04/24/2012
8153569Lubricant base oil
Disclosed is lubricant base oil that is excellent in lubricity, sludge solubility, low viscosity, and low temperature characteristics and capable of realizing low volatility. The lubricant base oil contains as its main component a diester or triester synthesized fro...
04/10/2012
8129543Cyclic guanidine ionic liquid
Disclosed is an ionic liquid which is stable over a wide potential range and exhibits a high ionic conductivity. The ionic liquid comprises a cyclic guanidine salt represented by the following formula (1): wherein R1
03/06/2012
8119257Organic electroluminescent device
Disclosed is an organic electroluminescent device (organic EL device) utilizing phosphorescence which is improved in luminous efficiency and sufficiently secured of driving stability. The organic EL device comprises an anode 2, organic layers containing a hol...
02/21/2012
8062769Indolocarbazole compound for use in organic electroluminescent device and organic electroluminescent device
Provided is an organic electroluminescent device (organic EL device) that is improved in luminous efficiency, fully secured of driving stability, and simply constructed. The EL device has a light-emitting layer disposed between an anode and a cathode stacked one upo...
11/22/2011
8034934Process for producing ortho-metalated complex of iridium with homoligand
Disclosed is a process for producing an ortho-metalated 1:3 complex of iridium with homoligands which is useful as a luminous material for an organic EL device in high yield at high purity in a short time by a simple procedure. An example of the complex is tris(2-ph...
10/11/2011
8034514Photosensitive resin composition for volume phase hologram recording and optical information recording medium using the same
The present invention relates to a volume phase hologram recording material excellent in transparency, sensitivity, low curing shrinkage, and transparency, a volume phase hologram recording medium, and a volume phase hologram. A photosensitive resin composition for ...
10/11/2011
8026036Photosensitive resin composition and circuit substrate employing the same
The present invention relates to a photosensitive resin composition excellent in pliability, ultraviolet sensitivity for development, developability with an aqueous alkali solution, and storage stability at room temperature and a circuit substrate employing the same...
09/27/2011
8012606Heterocyclic compound and organic electroluminescent device using the same
Disclosed is an organic electroluminescent device (organic EL device) which is improved in luminous efficiency, fully secured of driving stability, and simple in structure and also disclosed is a heterocyclic compound useful for the said device. Specifically, the he...
09/06/2011
8008657Compound for organic electroluminescent device and organic electroluminescent device
Disclosed are an organic electroluminescent device (organic EL device) which is improved in luminous efficiency, fully secured of driving stability, and of simple constitution and a compound useful for the fabrication of said organic EL device. The compound for the ...
08/30/2011
8008429Thermosetting resin composition
Disclosed is a thermosetting resin composition of excellent low-temperature curability comprising an oxetane compound and also disclosed is a cured article obtained therefrom. The thermosetting resin composition comprises an oxetane compound (A) containing two or mo...
08/30/2011
7995895Resin composition for optical waveguide, and optical waveguide produced by employing the resin composition
A resin composition for an optical waveguide is provided, which comprises: an epoxy compound represented by the following general formula (1): wherein m is 1 or a positive integer, n is 1 or a positive integer, R and R′ w...
08/09/2011
7993760Compound for use in organic electroluminescent device and organic electroluminescent device
Disclosed are an organic electroluminescent device (organic EL device) which is improved in luminous efficiency, fully secured of driving stability, and simple in constitution and a compound for use therein. The organic electroluminescent device comprises a light-em...
08/09/2011
7968874Organic electroluminescent device material and organic electroluminescent device
Disclosed is an organic electroluminescent device (organic EL device) that utilizes phosphorescence and is improved in luminous efficiency and fully secured of driving stability. The organic EL device comprises an anode, an organic layer containing a hole-transporti...
06/28/2011
7816020Organic electroluminescent device
Provided is an organic electroluminescent device which is suitable for use in full-color and multicolor panels and shows higher luminous efficiency and better driving stability than organic electroluminescent devices utilizing luminescence from the singlet state. Th...
10/19/2010
7781072Organic electroluminescence device
An organic electroluminescence device of a long emission life is obtained by stacking an anode, a hole transport layer comprising an organic compound, a light emitting layer comprising an organic compound, an electron transport layer comprising an organic compound, ...
08/24/2010
7749615Organic electroluminescent device
Disclosed is an organic electroluminescent device (organic EL device) which has a simple structure and utilizes phosphorescence. The organic electroluminescent device is improved in luminescent efficiency and secured of sufficient driving stability. The organic elec...
07/06/2010
7727426Epoxy resin composition
Disclosed is an epoxy resin composition which is solid at ordinary room temperature, cures with excellent light resistance and heat resistance and minimal shrinkage, and is useful for encapsulating LEDs. The epoxy resin composition is characterized by comprising as ...
06/01/2010
7605279Process for producing alicyclic oxetane compound
Provided is a production process by which a novel alicyclic oxetane compound which has an oxetane ring, has excellent light transmission in the near ultraviolet region, and is useful as a cationically polymerizable monomer can be easily obtained. The production proc...
10/20/2009
7605277Aminodibenzodioxin derivative and organic electroluminescent using the same
This invention relates to a highly reliable material for an organic electroluminescent element exhibiting high luminance, high luminous efficiency, little deterioration in emission, and suitability for use and storage at high temperatures and to an organic electrolu...
10/20/2009
7595362Curable resin composition
Provided is curable resin composition which gives a cured article excellent in chemical resistance, dielectric properties, low water-absorption, heat resistance, flame retardance, and mechanical properties and which is usable in applications such as dielectric mater...
09/29/2009
7582364Organic electroluminescent device
This invention provides an organic electroluminescent element (organic EL element) utilizing phosphorescence which emits light efficiently with high luminance at low current density, shows good driving stability and is applicable to display devices such as flat pane...
09/01/2009
6929872Organic electroluminescent devices
This invention relates to highly reliable organic electroluminescent (EL) materials and devices exhibiting high luminance, high light emitting efficiency, minimal deterioration in light emission, usability at high temperature and good storage stability. The organic ...
08/16/2005
6790540Organic electroluminescent element material and organic electroluminescent element
This invention relates to a low-molecular-weight compound which is soluble in solvents and useful for a luminescent material and to an organic electroluminescent element (EL element) which comprises said luminescent material in its electroluminescent layer. The EL e...
09/14/2004
7402645Soluble polyfunctional vinyl aromatic polymer and method of producing the same
The present invention relates to a soluble polyfunctional vinylaromatic copolymer improved in heat resistance, resistance to thermal decomposition, solvent solubility, and processability. The soluble polyfunctional vinylaromatic polymer is obtained by cationically p...
07/22/2008
7385017Silicone resin compositions and molded articles thereof
This invention relates to a silicone resin composition which exhibits high heat resistance, high transparency and high dimensional stability and thus can be suitably used for optical applications such as a lens, an optical disc, an optical fiber, a substrate for a p...
06/10/2008
7381901Hinge board and method for producing the same
A hinge board having a hinge bending part and a rigid part includes: not less than two flexible wiring boards including a polyimide sheet layer, a conductor layer having a circuit formed on both sides or one side of the polyimide sheet layer, and a coverlay film lay...
06/03/2008
7345125Silicone resin composition and molded product thereof
The present invention relates to a silicone resin composition that can be used for a roll film having small birefringence, the silicone resin composition being suitable for, for example, optical applications, and a window material for an automobile, the silicone res...
03/18/2008
7338716Laminate and process for producing the same
This invention relates to a laminate comprising an insulating polyimide resin layer etchable by an aqueous alkaline solution and a metal foil. The laminate has an insulating resin layer composed of a plurality of polyimide resin layers on the metal foil and the insu...
03/04/2008
7259213Indole resins epoxy resins and resin compositions containing the same
This invention relates to epoxy resins containing indole as structural unit, indole resins and resin compositions containing said epoxy resins and indole resins useful for applications such as laminating, molding, casting and adhesion on account of their excellent f...
08/21/2007
7141229Graphite material for negative pole of lithium secondary battery, method of manufacturing the graphite material, and lithium secondary battery
This invention relates to a graphite material for negative electrode of lithium secondary battery. This graphite material is obtained by carbonizing the pulverized green coke to yield coke, adding one kind or more of boron or a compound thereof to the coke, graphiti...
11/28/2006
7109022Composition containing calcium carbonate particles dispersed in sulfur for removing nitrate nitrogen
This invention relates to a denitrifying composition which is a material to be used for decomposing nitrates nitrogen in effluent by sulfur-oxidizing bacteria that consume sulfur and carbonate as nutrients and is characterized by containing particles of calcium carb...
09/19/2006
7098268Resin composition
This invention relates to a resin composition useful as a vibration-damping agent and the like. The resin composition is formulated by adding 1 wt % or more of styrenated phenol obtained by the reaction of a phenol with styrene to a polycyclic aromatic oligomer obta...
08/29/2006
7048860Material for treating acidic waste water
This invention relates to a method for treating acidic waste water, particularly mine effluent, and to a solid waste water treating material useful for the method. This waste water treating material is obtained by solidifying a mixture of rock wool and an inorganic ...
05/23/2006
7049389Process for preparing of aromatic oligomers
This invention relates to a process for preparing high-purity aromatic oligomers by effectively separating an organic layer containing aromatic oligomers or the reaction products of a polycyclic aromatic compound with formaldehyde from an aqueous layer containing an...
05/23/2006
7008573Amorphous coke for special carbon material and production process for the same
Provided are an amorphous coke for a special carbon material characterized in that it is an amorphous coke obtained by blending a coal tar base heavy oil and/or a petroleum base heavy oil with a resin and subjecting the mixture to thermal decomposition polycondensat...
03/07/2006
6998455Laminate and process for producing the same
This invention relates to a laminate which changes in dimension to such a small extent as not to cause curling and warpage when the ambient humidity changes and is useful for flexible printed wiring boards. The laminate possesses a polyimide layer or layers of polyi...
02/14/2006
6984714Siloxane-modified polyimide resin
This invention relates to a siloxane-modified polyimide resin which shows excellent adhesiveness and can be bonded by thermocompression at high temperature even after subjection to thermal hysteresis in the manufacturing step for electronic parts. This polyimide res...
01/10/2006
6921842Hydrogenated aromatic oligomers and process for preparing the same
The hydrogenated aromatic oligomer of this invention is represented by the following formula (1) (A-F)n-A  (1) (wherein A is a segment comprising mainly a polycyclic aromatic compound, a phenol and at least partly hydrogenated prod...
07/26/2005
1        
 
Sign InRegister
Username  
Password   
forgot password?