Inventor

SEKIGUCHI TOSHISADA

JP2 patents

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

COPAL CO LTD

1 patent

US5241417AAug 31, 1993

Multi-layered optical filter film and production method thereof

COPAL CO LTD51 citations85

FUJIKURA LTD

1 patent

US6741775B2May 25, 2004

Optical switch

FUJIKURA LTD4 citations58