Inventor

HANADA FUMIO

JP4 patents

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

TOKUYAMA SODA KK

2 patents

US5221455AJun 22, 1993

Bipolar membrane and method for its production

TOKUYAMA SODA KK36 citations89

US4923611AMay 8, 1990

Novel anion-exchange membrane

TOKUYAMA SODA KK23 citations88

TOKOYAMA CORP

1 patent

US6596137B2Jul 22, 2003

Bipolar membrane

TOKOYAMA CORP16 citations72

TOKUYAMA CORP

1 patent

US5415751AMay 16, 1995

Method of producing acids and alkalis

TOKUYAMA CORP12 citations72