Inventor

NAKAHASHI SUMIO

JP4 patents

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

NISSEN KAGAKUKOGYO K K

1 patent

US5269977ADec 14, 1993

Method of manufacturing a foam transparent organic glass plate

NISSEN KAGAKUKOGYO K K57 citations86

NISSEN KAGAKU KOGYO KK

1 patent

US4830899AMay 16, 1989

Light reflection material, its manufacture and application

NISSEN KAGAKU KOGYO KK31 citations85

NISSEN KAGAKU KK

1 patent

US6767105B2Jul 27, 2004

Planar lighting device

NISSEN KAGAKU KK16 citations76

NISSAN CHEMICAL INDUSTRY CO LT

1 patent

US4931227AJun 5, 1990

Molding of light reflector

NISSAN CHEMICAL INDUSTRY CO LT5 citations62