Inventor

MINAGAWA MASAHIRO

JP3 patents

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

RICOH CO LTD

1 patent

USD291095SJul 28, 1987

Laser printer

RICOH CO LTD26 citations89

NIPPON SEIKI CO LTD

1 patent

US8049232B2Nov 1, 2011

Organic EL element having a plurality of light emitting layers

NIPPON SEIKI CO LTD0 citations44

MINAGAWA MASAHIRO

1 patent

US8690627B2Apr 8, 2014

Organic EL element producing method comprising energization treatment step and storage treatment step

MINAGAWA MASAHIRO0 citations41