Inventor

KOKAJI KAZUMI

JP3 patents

Patents

3 patents

US7273652B2Sep 25, 2007

Hollow carbon fiber and production method

HITACHI CHEMICAL CO LTD5 citations72

US6743500B2Jun 1, 2004

Hollow carbon fiber and production method

HITACHI CHEMICAL CO LTD9 citations72

US6641792B2Nov 4, 2003

Hollow carbon fiber and production method

HITACHI CHEMICAL CO LTD5 citations72