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Assignee: Sumitomo Bakelite Co. Ltd.


Location: Tokyo, JP
No. of patents: 19

NumberTitleIssue Date
8053166Optical waveguides and methods thereof
Embodiments in accordance with the present invention provide waveguide structures and methods of forming such structures where core and laterally adjacent cladding regions are defined. Some embodiments of the present invention provide waveguide structures where core...
11/08/2011
7820356Optical waveguides and methods thereof
Embodiments in accordance with the present invention provide waveguide structures and methods of forming such structures where core and laterally adjacent cladding regions are defined. Some embodiments of the present invention provide waveguide structures where core...
10/26/2010
7368205Polyamide resin, positive-working photosensitive resin composition, method for producing pattern-formed resin film, semiconductor device, display device, and method for producing the semiconductor device and the display device
The invention provides a polyamide resin having a structure represented by the formula (1), wherein about 0.1 mol % to about 30 mol % of the total amount of Y in the formula (1) has a structure represented by the formula (2), further a positive-working photosensitiv...
05/06/2008
7348220Resin-encapsulated type semiconductor packages, and production method and apparatus therefor
The present invention is characterized in that a powdery or granular resin composition stirred and melted in an agitating pot having a heater by rotating an agitating rod projecting from a tip of an agitating plunger, the agitated and melted resin composition is tak...
03/25/2008
7297106Medical treating instrument
There is provided a surgical treatment instrument in which the mode can be easily switched between a treatment under a pneumoperitoneum condition and a treatment outside the peritoneal cavity, and forceps can be manipulated under the pneumoperitoneum condition, and ...
11/20/2007
7291684Resin 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 is disclosed for encapsulating a semiconductor chip containing a phenol aralkyl type epoxy resin cont...
11/06/2007
7250209Transparent composite composition
A transparent composite composition is provided which is low in coefficient of linear expansion and excellent in transparency, heat resistance and solvent resistance and can serve as an optical sheet for a liquid crystal display device or organic EL display device, ...
07/31/2007
D516924Carrier tape
03/14/2006
D510279Carrier tape
10/04/2005
D510278Carrier tape
10/04/2005
6835344Process of making a thermoplastic container
A recess of a thermoplastic resin container is formed by urging a part of a thermoplastic resin sheet into a cavity of a mold after heating the part of the thermoplastic resin sheet, so that a bottom portion and side walls of the recess are formed, wherein a bottom ...
12/28/2004
6821109Resin material supply apparatus and method
A resin material supply apparatus and a method thereof ensuring the supply of a predetermined amount of resin material and improved molding quality. The resin material supply apparatus includes a weighing unit which allows a predetermined amount of resin material to...
11/23/2004
6685671Balloon catheter for puncturing, medical tube introduction device using the catheter and method for use thereof
A medical tube inserting device that ensures safely and infallibly a route for draining of digestive juices and infusion of drug solutions, enteral nutrition and the like, and more specifically, a balloon catheter for puncturing which does not rupture tha...
02/03/2004
6656996Semiconductor-sealing resin composition and semiconductor device using it
Resin composition for sealing semiconductor devices, which contains a filler (A) of spherical fused silica having maximum particle size of not larger than 45 μm and may contain metal impurities having a particle size of not larger than 53 μm; and a semi...
12/02/2003
6420503Norbornene sulfonamide polymers
The invention is directed to polymers containing a repeating unit derived from a norbornene sulfonamide. These may be addition polymers which include copolymers with one or more comonomers such as norbornene, ethylene, an acrylate or sulfur dioxide or car...
07/16/2002
6335418Functional polyamic acid microfine particles, functional polyimide microfine particles, and processes for their production
A primary object of the invention is to provide a production technology for functional polyamic acid microfine particles and functional polyimide microfine particles by which the particle shape, size and size distribution can be freely controlled. The inv...
01/01/2002
6333392Thermosetting amic acid microfine particles, thermosetting imide microfine particles, crosslinked imide microfine particles, and processes for their production
An object of the invention is to provide thermosetting amic acid microfine particles, thermosetting imide microfine particles and crosslinked imide microfine particles of controlled particle shape and size distribution. The invention provides a production...
12/25/2001
6187899Polyamic acid and polyimide microfine particles and process for their production
A process for producing polyimide microfine particles which is amenable to free control of particle morphology and particle diameter distribution is provided. A polyamic acid and a polyimide, each in the form of microfine particles with good monodispersib...
02/13/2001
5352043Self-supporting bag, a method of production thereof and an apparatus for production thereof
A self-supporting bag comprising a part constituting the trunk and a part constituting the bottom both made of a multilayer plastic film comprising a heat adhesive plastic layer as the inner layer thereof is provided. The inner layer or the outer layer of...
10/04/1994
 
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