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: Sumitomo Bakelite Company Limited


Location: Tokyo, JP
No. of patents: 169

1          
NumberTitleIssue Date
8118584Device and method for processing carrier tape
A carrier tape forming apparatus includes a tape paying-out unit for paying out a tape to be worked, a tape feeding unit for feeding the tape, a forming unit for effecting embossing on the tape, a perforating unit for perforating at least a feeding hole in the tape,...
02/21/2012
8044505Prepreg, method for manufacturing prepreg, substrate, and semiconductor device
A prepreg which can meet a demand for thickness reduction is provided. The prepreg has first and second resin layers having different applications, functions, capabilities, or properties, and allows an amount of a resin composition in each of the first and second re...
10/25/2011
7799852Composition of biphenyl epoxy resin, phenolbiphenylaralkyl resin and filler
An epoxy resin composition which can be used as a semiconductor encapsulating resin and in which the improvement of flame retardancy can be attained by suitably adapting a crosslinked structure itself of a cured article without using any flame retardant material and...
09/21/2010
7655871Resin composition, resin-attached metal foil, base material-attached insulating sheet and multiple-layered printed wiring board
A multiple-layered printed wiring board is manufactured, which exhibits higher thermal resistance and lower thermal expansion so that no flaking and/or no crack would be occurred in a thermal shock test such as a cooling-heating cycle test and the like, in addition ...
02/02/2010
7622515Composition of epoxy resin, phenolic resin, silicone compound, spherical alumina and ultrafine silica
The object of the present invention is to provide an epoxy resin composition which is excellent in flash characteristics and thermal conductivity, and gives an area mounting type semiconductor apparatus having little warpage and excellent temperature cycle propertie...
11/24/2009
7612458Epoxy resin composition for semiconductor encapsulating use, and semiconductor device
There is provided an epoxy resin composition for semiconductor encapsulating use comprising: an epoxy resin (A); a phenol resin (B); a curing accelerator (C); and an inorganic filler (D), wherein the inorganic filler (D) contains a spherical fused silica (d1) which ...
11/03/2009
7442729Composition of epoxy resin, polyphenolic compound and trisubstituted phosphonionphenolate salt
A curing accelerator which is suitable for various curable resin compositions, an epoxy resin composition having excellent curability, storage stability and fluidity, and a semiconductor device having excellent solder cracking resistance and moisture resistance reli...
10/28/2008
7144385Discharging implement for medical care
For safely inserting a catheter into a chest cavity of a child or corpulent patient to be retained therein and for preventing atmospheric air from proceeding into the chest cavity during a removal of a penetrating needle, discharge equipment for medical procedures i...
12/05/2006
7098276Flame-retardant epoxy resin composition and semiconductor device made using the same
An epoxy resin composition which can be used as a semiconductor encapsulating resin and in which the improvement of flame retardancy can be attained by suitably adapting a crosslinked structure itself of a cured article without using any flame retardant material and...
08/29/2006
7077640Method of and apparatus for manufacturing molded materials of thermosetting resin composition
A method of manufacturing molded materials of a thermosetting resin composition in a method of granulating a molding material of the thermosetting resin composition, in which a sheet producing step for transferring the molding material in a molten state to a subsequ...
07/18/2006
7074738Curing accelerator, epoxy resin composition, and semiconductor device
A curing accelerator which is suitable for various curable resin compositions, an epoxy resin composition having excellent curability, storage stability and fluidity, and a semiconductor device having excellent solder cracking resistance and moisture resistance reli...
07/11/2006
7023098Resin composition for encapsulating semiconductor chip and semiconductor device therewith
An epoxy resin composition for encapsulating a semiconductor chip, which has good flowability without deterioration in curability. Specifically, a resin composition for encapsulating a semiconductor chip containing an epoxy resin (A), a phenol resin (B), an inorgani...
04/04/2006
6946421Latent catalyst
This invention provides a latent catalyst having a structure of phosphonium borate consisting of a monovalent cation portion in which four specific groups are bonded to the phosphorus atom and a monovalent anion portion in which four specific groups are bonded to th...
09/20/2005
6908717Positive photosensitive resin composition, process for its preparation, and semiconductor devices
The present invention provides a positve photosensitive resin composition of high sensitivity which can form a pattern of high resolution and high residual film ration and which can give a cured film superior in mechanical properties, adhesivity and water absorptivi...
06/21/2005
6838030Method of and apparatus for manufacturing molded materials of thermosetting resin composition
A method of manufacturing molded materials of a thermosetting resin composition in a method of granulating a molding material of the thermosetting resin composition, in which a sheet producing step for transferring the molding material in a molten state to a subsequ...
01/04/2005
6831146Resin composition for use in manufacturing wet friction materials and wet friction material
A resin composition for wet friction materials contains as a main component a phenolic resin formed as a result of the reaction between phenols and aldehydes in the presence of a basic catalyst, and a particulate filler having a specific surface area of 35 to 410 m
12/14/2004
6787224Cover tape for packaging electronic components
A cover tape for packaging electronic components, which can prevent troubles associated with the peeling strength or trouble appearing during mounting of the electronic components, which can be produced at a low cost, and which is transparent; that is, a cover tape ...
09/07/2004
6780960Method of making a polyimide in a low-boiling solvent
A method of making a solution of a polyimide from a diamine monomer and a dianhydride monomer is disclosed. A solution or slurry of one of the monomers in a solvent that boils at a temperature between about 80° C. and about 160° C. is prepared. The solution or slu...
08/24/2004
6765051Phenol resin forming material for pulley used in motor vehicles and phenol resin pulley for motor vehicles
A phenol resin composition for forming pulleys used in motor vehicles is disclosed. The composition comprises 35 to 45 wt % of resol, 35 to 45 wt % of glass fiber, 5 to 15 wt % of one or more inorganic powders selected from the group consisting of calcium carbonate,...
07/20/2004
6750315Polyether aromatic ketone resin composition and its film and sheet
The present invention is envisioned to improve sliding characteristics of polyether aromatic ketone resins and to provide their molded articles which are themselves resistant to damage and abrasion, cause no such damage or abrasion to their partner parts and can be ...
06/15/2004
6733901Process for production of epoxy resin composition for semiconductor encapsulation, epoxy resin composition for semiconductor encapsulation, and semiconductor device
The present invention provides a process for producing an epoxy resin composition for semiconductor encapsulation which, when used in encapsulation of a semiconductor chip, can minimize voids appearing in the semiconductor device obtained. That is, the present inven...
05/11/2004
6688472Container for electric device
A container for receiving an electric device in a recess. The container includes a pair of projections for restraining a movement of the electric device in a first direction perpendicular to a second direction and directed from a top opening area of the r...
02/10/2004
6667104Phenol resin composition for wet friction material and wet friction material
A phenol resin composition for wet friction material comprising a curable resin composition obtained by mixing a resol-type phenol resin and a hydrolysis solution of an alkoxysilane or a condensate thereof, wherein the ratio by weight of the nonvolatile c...
12/23/2003
6664344Composition of polyepoxide, phenolic co-condensate and phosphonium-polyphenolic molecular association product
The present invention provides an epoxy resin composition that has both a rapidly-curability and an excellent storage stability and is useful in the field of electronic and electric materials. That is, the present invention is an epoxy resin composition c...
12/16/2003
6639307Cover tape for packaging electronic elements
A cover tape for packaging electronic elements capable of being heat-sealed to a polycarbonate carrier tape having regularly formed pockets for containing electronic elements, which cover tape comprises (A) a substrate layer comprising a thermoplastic res...
10/28/2003
6635138Method of immobilizing circuitry fingers
Disclosed is a method of immobilizing the fingers of circuitry. A coating is formed of a liquid adhesive on the surface of a release film in a pattern of strips in positions perpendicular to and across the positions the fingers of the circuitry will have ...
10/21/2003
6632523Low temperature bonding adhesive composition
An adhesive composition that bonds at low temperatures is disclosed. The composition is a solution in an organic solvent of a polyimide, an epoxy resin, and a cyanate. The polyimide can be a polyimidesiloxane, made from a dianhydride, an aromatic diamine ...
10/14/2003
6631861Grinding device for resin composition
In a rotor 1 provided with a cylinder 2 which can supply a molten and mixed resin composition to an upper portion of the rotor 1 from an opening portion and is formed by a magnetic material on an outer periphery thereof or is formed by a nonmagnetic mater...
10/14/2003
6613699Process for producing a semiconductor device
A process for producing a semiconductor device which comprises forming a layer of an organic polymer resin on a surface of a semiconductor element, treating the formed layer by pattern working and curing, etching the element using the patterned and cured ...
09/02/2003
6592802Process for production of polymer sheet and optical polymer sheet
The present invention provides a process for continuously producing a polymer sheet having an excellent surface smoothness, an apparatus for producing such a polymer sheet, and an optical polymer sheet produced by such a process. The process for producing...
07/15/2003
6579160Holder for polished work and manufacturing method thereof
The inner circumferential surface of through holes in a metal plate is chamfered or put to anchor fabrication and a thermoplastic resin is injection molding to the inner circumferential surface of the through hole thereby forming a resin portion over the ...
06/17/2003
6569513Prepreg and process for manufacturing same
A prepreg exhibiting excellent formability and producing laminated boards and multiple layer circuit boards exhibiting high thickness precision is disclosed. The prepreg comprises an inner layer made from a glass fiber substrate, having a weight of 40 g o...
05/27/2003
6559218Phenol resin forming material for pulley used in motor vehicles and phenol resin pulley for motor vehicles
A phenol resin composition for forming pulleys used in motor vehicles is disclosed. The composition comprises 35 to 45 wt % of resol, 35 to 45 wt % of glass fiber, 5 to 15 wt % of one or more inorganic powders selected from the group consisting of calcium...
05/06/2003
6555174Process for manufacturing prepreg
A process for manufacturing a prepreg exhibiting excellent formability and producing laminated boards and multiple layer circuit boards exhibiting high thickness precision is disclosed. The process of manufacturing the prepreg comprises (a) a step of impr...
04/29/2003
6551714Flame-retardant resin composition, and prepregs and laminates using such composition
The present invention provides a resin composition having excellent flame retardancy without using any halogen-containing flame retardant, and prepregs and laminates using such a resin composition. More specifically, the present invention provides a flame...
04/22/2003
6538100Method for producing polyimide resin
The object of the present invention is to provide a method capable of producing polyimide resins having excellent heat resistance, which can utilize inexpensive monomers and does not use solvents. The method comprises mixing, in the absence of a solvent, ...
03/25/2003
6524989Tetraorganophosponium dicyclic tetraorganoborate catalyst
This invention provides a latent catalyst having a structure of phosphonium borate consisting of a monovalent cation portion in which four specific groups are bonded to the phosphorus atom and a monovalent anion portion in which four specific groups are b...
02/25/2003
6495260Method of producing epoxy for molding semiconductor device, molding material, and semiconductor device
The present invention provides a process for producing an epoxy resin molding material for semiconductor encapsulation, which is very low in voids generation; a molding material produced by the process; and a semiconductor device obtained by encapsulation...
12/17/2002
6486242Flame-retardant resin composition and prepreg and laminate using the same
The present invention provides a flame-retardant resin composition having high flame retardancy without using any halogen compound and suited for printed circuit boards. Specifically, it provides a flame-retardant resin composition containing as its essen...
11/26/2002
6483195Transfer bump street, semiconductor flip chip and method of producing same
The invention relates to a low-cost transfer bump sheet which is capable of transferring copper-cored solder bumps with high reliability of bonding to a semiconductor chip and which is capable of transferring bumps of various structures. The invention als...
11/19/2002
1          
 
Sign InRegister
Username  
Password   
forgot password?