Inventor

TSUZUKIYAMA KOJI

JP3 patents

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

MITSUI PETROCHEMICAL IND

2 patents

US5034255AJul 23, 1991

Optical recording medium and method of its production

MITSUI PETROCHEMICAL IND14 citations68

US4981777AJan 1, 1991

Process for preparation of optical recording medium

MITSUI PETROCHEMICAL IND5 citations58

MITSUI CHEMICALS INC

1 patent

US6190153B1Feb 20, 2001

Oriented film producing facility with thickness and orientation control means

MITSUI CHEMICALS INC34 citations89