Inventor

NISHIYAMA TAKEHIKO

JP4 patents

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

ASAHI GLASS CO LTD

2 patents

US6580674B1Jun 17, 2003

Phase shifter and optical head device mounted with the same

ASAHI GLASS CO LTD60 citations94

US6917576B2Jul 12, 2005

Retarder and optical head device installing the same

ASAHI GLASS CO LTD8 citations72

AG TECHNOLOGY CORP

1 patent

US5331446AJul 19, 1994

Liquid crystal optical element and a laser projection apparatus using polymer dispersed liquid crystal

AG TECHNOLOGY CORP37 citations92

TATSUTA DENSEN KK

1 patent

US4120139AOct 17, 1978

Cable making apparatus

TATSUTA DENSEN KK13 citations66