Inventor

OZAWA MADOKA

JP7 patents

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

TOPPAN PRINTING CO LTD

6 patents

US12176547B2Dec 24, 2024

Catalyst layer for polymer electrolyte fuel cells, membrane-electrode assembly, and polymer electrolyte fuel cell

TOPPAN PRINTING CO LTD0 citations60

US11594745B2Feb 28, 2023

Electrode catalyst layer, membrane electrode assembly and polymer electrolyte fuel cell

TOPPAN PRINTING CO LTD1 citations57

US11581546B2Feb 14, 2023

Catalyst layer, membrane electrode assembly, and polyelectrolyte fuel cell

TOPPAN PRINTING CO LTD0 citations57

US11349131B2May 31, 2022

Catalyst for fuel cells, membrane electrode assembly, and polymer electrolyte fuel cell

TOPPAN PRINTING CO LTD0 citations54

US7907237B2Mar 15, 2011

Pattern-formed substrate, color filter and liquid crystal display employing the color filter

TOPPAN PRINTING CO LTD2 citations54

US11677081B2Jun 13, 2023

Membrane electrode assembly and polymer electrolyte fuel cell

TOPPAN PRINTING CO LTD0 citations47

TOPPAN INC

1 patent

US12573640B2Mar 10, 2026

Electrode catalyst layer, membrane electrode assembly, and polymer electrolyte fuel cell

TOPPAN INC0 citations55