Kazuki I Fukushima

US Patent:

8263715, Sep 11, 2012

Filed:

Aug 28, 2009

Appl. No.:

12/549667

Inventors:

Kazuki Fukushima - San Jose CA, US
James L. Hedrick - San Jose CA, US
Sung-Ho Kim - Livermore CA, US
Robert M. Waymouth - Palo Alto CA, US

Assignee:

International Business Machines Corporation - Armonk NY
The Board of Trustees of the Leland Stanford Junior University - Palo Alto CA

International Classification:

C08G 64/18

US Classification:

525415, 525410, 525411, 525413, 526269, 528370

Abstract:

A block copolymer includes a hydrophobic block and a hydrophilic block, wherein the hydrophobic block and the hydrophilic block include repeating units derived from ring opening polymerization of one or more cyclic carbonate monomers. The one or more cyclic carbonate monomers are independently selected from compounds of the general formula (II):.

US Patent:

8361495, Jan 29, 2013

Filed:

Dec 23, 2009

Appl. No.:

12/646071

Inventors:

James Lupton Hedrick - Pleasanton CA, US
Kazuki Fukushima - San Jose CA, US
Yi Yan Yang - Singapore, SG

Assignee:

International Business Machines Corporation - Armonk NY
Agency For Science, Technology And Research - Singapore

International Classification:

C07C 211/62
C07C 209/12
C07C 209/20

US Classification:

424450, 525917, 564286, 564290

Abstract:

Biodegradable cationic block copolymers are disclosed, comprising a hydrophilic block comprising first repeat units derived from a first cyclic carbonyl monomer by ring-opening polymerization, wherein more than 0% of the first repeat units comprise a side chain moiety comprising a quaternary amine group; a hydrophobic block comprising second repeat units derived from a second cyclic carbonyl monomer by ring-opening polymerization; an optional endcap group; and a chain fragment derived from an initiator for the ring opening polymerization. The cationic block copolymers form aqueous micelle mixtures suitable for antimicrobial applications.

US Patent:

8450043, May 28, 2013

Filed:

Sep 30, 2010

Appl. No.:

12/894412

Inventors:

Daniel J. Coady - San Jose CA, US
Urs T. Duerig - Rueschlikon, CH
Jane E. Frommer - San Jose CA, US
Kazuki Fukushima - San Jose CA, US
James L. Hedrick - San Jose CA, US
Armin W. Knoll - Rueschlikon, CH

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G03F 7/00
G03F 7/004
G03F 7/40

US Classification:

4302701, 430330, 430331, 430913, 430322

Abstract:

The invention concerns a method for patterning a surface of a material. A substrate having a polymer film thereon is provided. The polymer is a selectively reactive polymer (e. g. , thermodynamically unstable): it is able to unzip upon suitable stimulation. A probe is used to create patterns on the film. During the patterning, the film is locally stimulated for unzipping polymer chains. Hence, a basic idea is to provide a stimulus to the polymeric material, which in turn spontaneously decomposes e. g. , into volatile constituents. For example, the film is thermally stimulated in order to break a single bond in a polymer chain, which is sufficient to trigger the decomposition of the entire polymer chain.

US Patent:

8507640, Aug 13, 2013

Filed:

Aug 19, 2010

Appl. No.:

12/859336

Inventors:

Daniel Joseph Coady - San Jose CA, US
Kazuki Fukushima - San Jose CA, US
James Lupton Hedrick - Pleasanton CA, US
Hans Werner Horn - San Jose CA, US
Julia Elizabeth Rice - Sunnyvale CA, US

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

C07D 245/00
C08G 63/00

US Classification:

528336, 544282, 544180

Abstract:

A salt catalyst comprises an ionic complex of i) a nitrogen base comprising one or more guanidine and/or amidine functional groups, and ii) an oxoacid comprising one or more active acid groups, the active acid groups independently comprising a carbonyl group (C═O), sulfoxide group (S═O), and/or a phosphonyl group (P═O) bonded to one or more active hydroxy groups; wherein a ratio of moles of the active hydroxy groups to moles of the guanidine and/or amidine functional groups is greater than 0 and less than 2. The salt catalysts are capable of catalyzing ring opening polymerization of cyclic carbonyl compounds.

US Patent:

8536291, Sep 17, 2013

Filed:

Jul 6, 2012

Appl. No.:

13/543120

Inventors:

Kazuki Fukushima - San Jose CA, US
James L. Hedrick - San Jose CA, US
Sung-Ho Kim - Livermore CA, US
Robert M. Waymouth - Palo Alto CA, US

Assignee:

International Business Machines Corporation - Armonk NY
The Board of Trustees of the Leland Standford Junior University - Palo Alto CA

International Classification:

C08G 64/18

US Classification:

526269, 525410, 525411, 525413, 525415, 528370

Abstract:

Block copolymers include hydrophobic and hydrophilic blocks having repeating units derived from ring opening polymerization of one or more cyclic carbonate monomers. The carbonate monomers are independently selected from compounds of formula (II):.

US Patent:

8541477, Sep 24, 2013

Filed:

Mar 4, 2011

Appl. No.:

13/040550

Inventors:

Abdullah M Alabdulrahman - Riyadh, SA
Hamid A Almegren - Riyadh, SA
Fares D Alsewailem - Riyadh, SA
Phillip Joe Brock - Sunnyvale CA, US
Daniel Joseph Coady - San Jose CA, US
Kazuki Fukushima - San Jose CA, US
James Lupton Hedrick - Pleasanton CA, US
Hans Werner Horn - San Jose CA, US
Julia Elizabeth Rice - Sunnyvale CA, US

Assignee:

International Business Machines Corporation - Armonk NY
King Abdulaziz City for Science and Technology - Riyadh

International Classification:

C08J 11/04

US Classification:

521 485, 521 40, 521 48, 5283081, 528480, 528495, 502167, 502200, 564225

Abstract:

A method comprises forming a reaction mixture comprising a terephthalate polyester, a glycol comprising 2 to 5 carbons, and an amidine organocatalyst; and heating the reaction mixture at a temperature of about 120 C. or more to depolymerize the terephthalate polyester, thereby forming a terephthalate reaction product comprising a monomeric dihydroxy terephthalate diester; wherein the terephthalate reaction product contains terephthalate oligomers in an amount less than the amount of terephthalate oligomers that would result from i) substituting the amidine organocatalyst with an equimolar amount of a guanidine catalyst and ii) depolymerizing the terephthalate polyester under otherwise identical reaction conditions.

US Patent:

8574815, Nov 5, 2013

Filed:

Aug 9, 2012

Appl. No.:

13/570921

Inventors:

Daniel J. Coady - San Jose CA, US
Urs T. Duerig - Rueschlikon, CH
Jane E. Frommer - San Jose CA, US
Kazuki Fukushima - San Jose CA, US
James L. Hedrick - San Jose CA, US
Armin W. Knoll - Rueschlikon, CH

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G03F 7/00
G03F 7/004

US Classification:

4302701

Abstract:

The invention concerns a method for patterning a surface of a material. A substrate having a polymer film thereon is provided. The polymer is a selectively reactive polymer (e. g. , thermodynamically unstable): it is able to unzip upon suitable stimulation. A probe is used to create patterns on the film. During the patterning, the film is locally stimulated for unzipping polymer chains. Hence, a basic idea is to provide a stimulus to the polymeric material, which in turn spontaneously decomposes e. g. , into volatile constituents. For example, the film is thermally stimulated in order to break a single bond in a polymer chain, which is sufficient to trigger the decomposition of the entire polymer chain.

US Patent:

8642086, Feb 4, 2014

Filed:

Mar 31, 2011

Appl. No.:

13/077005

Inventors:

Daniel Joseph Coady - San Jose CA, US
Kazuki Fukushima - San Jose CA, US
James Lupton Hedrick - Pleasanton CA, US
Yi Yan Yang - Singapore, SG

Assignee:

International Business Machines Corporation - Armonk NY
Agency for Science, Technology and Research - Singapore

International Classification:

A61K 9/00
A61K 31/765

US Classification:

424486, 424 7817

Abstract:

A composition of matter comprises a cationic polymer comprising a polycarbonate chain fragment, the polycarbonate chain fragment comprising a repeat unit comprising a side chain moiety containing a quaternary amine group; and a non-charged polymer comprising a polyester chain segment and a poly(alkylene oxide) chain segment; wherein i) the cationic polymer and the non-charged polymer are amphiphilic and biocompatible, ii) the cationic polymer and the non-charged polymer form a mixed complex by non-covalent interactions in water, and iii) the mixed complex is a more effective antimicrobial agent against at least a Gram-negative microbe compared to the cationic polymer and the non-charged polymer alone when tested using otherwise identical conditions.