Inventor

YAMAKAWA YOSHITAKA

JP19 patents

⚠️ This page may combine multiple inventors who share the name “YAMAKAWA YOSHITAKA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

YAMAKAWA YOSHITAKA

JSR CORP

Monomer containing electron-withdrawing group and electron-donative group, and copolymer and proton-conductive membrane comprising same

Polyarylene copolymers and proton-conductive membrane

Halogenated aromatic compound, polymer thereof, and proton-conductive membrane comprising same

Polyarylene, process for producing the same, solid polyelectrolyte, and proton-conductive film

Aromatic sulfonic acid ester derivative, polyarylene, polyarylene having sulfonic acid group and process for producing the same, and polymer solid electrolyte and proton-conductive membrane

Sulfonated polymer having nitrile-containing hydrophobic block and solid polymer electrolyte

Process for preparing poly-α-amino acid particles

Polyarylene copolymers and proton-conductive membrane

Halogenated aromatic compound, (co)polymer thereof, and proton-conductive membrane comprising same

Polyphenylene-containing electrode paste

Nitrogenated aromatic compound, process for production of the same, polymer, and proton conductive membrane

Electrode electrolyte for polymer-type fuel cell, and use thereof

Solid polymer electrolyte, proton conductive membrane, electrode electrolyte, electrode paste and membrane-electrode assembly

JAPAN SYNTHETIC RUBBER CO LTD

Blood-sampling vessel

Process for producing a diolefin polymer or copolymer and a rubber composition containing such a diolefin polymer or copolymer

YAMAKAWA YOSHITAKA

Aromatic compound and sulfonated polyarylene polymer

Polyarylene block copolymer having sulfonic acid group and use thereof

HIGAMI MAKOTO

Varnish for a solid polymer fuel cell

KADOTA TOSHIAKI

Aromatic compound and polyarylene copolymer having nitrogen-containing heterocycle including sulfonic acid group in side chain