Promerus, Lcc

Sumitomo Bakelite Company Limited

Other

Ramakrishna Ravikiran

Larry Funderburk Rhodes

Andrew Bell

Robert A Shick

Dino Amoroso

Saikumar Jayaraman

Hirotaka Nonaka

Makoto Fujiwara

Edmund Elce

Xiaoming Wu

Tetsuya Mori

Koji Choki

Keizo Takahama

Mutsuhiro Matsuyama

Kei Watanabe

Yumiko Otake

John-Henry Lipian

Etsu Takeuchi

Rajesh Raja Puthenkovilakom

Brian L Goodall

Yasunori Takahashi

Hiroaki Makabe

Brian Bedwell

Xiao-Mei Zhao

John C Fondran

Phillip S Neal

Richard A Mimna

Daoji Gan

Seok Ho Kang

Raymond Patrick Johnston

Wei Zhang

Hendra Ng

Brian F Knapp

James E Watson

Robert John Duff

Hiroko Nakano

Huabin Wang

William DiMenna

Davy Chum

Thomas M Kafka

Jianyong Jin

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 regions are collectively surrounded by laterally adjacent cladding regions and cladding layers and methods of forming such structures.

Optical waveguides and methods thereof

A polymer includes a first type of repeat unit represented by Formula I: 

Directly photodefinable polymer compositions and methods thereof

Methods for the addition polymerization of cycloolefins using a cationic Group 10 metal complex and a weakly coordinating anion of the formula:[(R)M(L)(L)][WCA]wherein [(R)M(L)(L)] is a cation complex where M represents a Group 10 transition metal; R' represents an anionic hydrocarbyl containing ligand; Lrepresents a Group 15 neutral electron donor ligand; Lrepresents a labile neutral electron donor ligand; x is 1 or 2; and y is 0, 1, 2, or 3; and z is 0 or 1, wherein the sum of x, y, and z is 4; and [WCA] represents a weakly coordinating counteranion complex; and b and d are numbers representing the number of times the cation complex and weakly coordinating counteranion complex are taken to balance the electronic charge on the overall catalyst complex.

Polymerized cycloolefins using transition metal catalyst and end products thereof

Some embodiments in accordance with the present invention relate to norbornene-type polymers and to photosensitive dielectric resin compositions formed therefrom. Other embodiments relate to films formed from such compositions and to devices, such as electrical, electronic and optoelectronic devices, that encompass such films.

Photosensitive dielectric resin compositions, films formed therefrom and semiconductor and display devices encompassing such films

A polymer comprising polycyclic repeating units having recurring ion conducting groups and optional crosslinkable groups is disclosed. The present invention provides the capability of tailoring polymers to impart unique properties to membranes fabricated from the polymers. Membranes comprising the polymers and methods for preparing the membranes and their use in ion conducting membranes, particularly in fuel cells, are also provided.

Polycyclic polymers containing pendant ion conducting moieties

The present invention relates to a directly photoimageable polymer composition (DPPC) and methods for its use in forming microelectronic and optoelectronic devices. Such DPPC encompasses a polymer having at least one norbornene-type repeat unit having a pendant silyl containing radical and at least one norbornene-type repeat unit having an acrylate containing radical.

Methods for the addition polymerization of cycloolefins using a cationic Group 10 metal complex and a weakly coordinating anion of the formula:[(R')M(L&#x2032;)(L&#x2033;)][WCA]wherein [(R&#x2032;)M(L&#x2032;)(L&#x2033;)] is a cation complex where M represents a Group 10 transition metal; R&#x2032; represents an anionic hydrocarbyl containing ligand; L&#x2032; represents a Group 15 neutral electron donor ligand; L&#x2033; represents a labile neutral electron donor ligand; x is 1 or 2; and y is 0, 1, 2, or 3; and z is 0 or 1, wherein the sum of x, y, and z is 4; and [WCA] represents a weakly coordinating counteranion complex; and b and d are numbers representing the number of times the cation complex and weakly coordinating counteranion complex are taken to balance the electronic charge on the overall catalyst complex.

The invention provides a method for producing an optical waveguide that includes the steps of: (a) forming a core structure, the core structure including an at least partially cured core composition, on a master defining a waveguide pattern; (b) applying over the top of the core structure and the master a cladding layer including a liquid cladding composition; (c) curing the cladding layer to form a core/cladding combination; and removing the core/cladding combination from the master so as to expose at least a portion of the core structure, wherein the refractive index of the core material is at least about 0.05 percent higher than the refractive index of the cladding material. In another embodiment, the invention relates to a method for producing an optical waveguide core structure that includes the steps of: (a) applying a core composition to a substrate defining a waveguide core pattern; (b) removing a portion of the core composition from an exposed surface of the filled waveguide core pattern; and (c) at least partially curing the core composition to form a core structure. In another embodiment, the invention relates to a composition for forming either the core or cladding portion of an optical waveguide comprising at least one norbornene-type monomer and/or at least one crosslinking monomer and at least one co-catalyst or pro-catalyst, wherein polymerization is achieved by the addition of at least one pro-catalyst (when a co-catalyst is present in the composition) or at least one co-catalyst (when a pro-catalyst is present in the composition). Optical waveguides made by the methods of the invention are also disclosed.

Optical waveguides and methods for making the same

The present invention relates to polymer compositions and methods of polymerizing such compositions. Furthermore, the present invention relates to polymer compositions that are useful in forming waveguides and to methods for making waveguides using such polymer compositions.

Polymeric compositions for forming optical waveguides; optical waveguides formed therefrom; and methods for making same

Growing community of inventors

Strongsville, OH, United States of America

Ramakrishna Ravikiran