Inventor

YATSUDA HISAO

JP4 patents

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

OHARA KK

2 patents

US5336643AAug 9, 1994

Low expansion transparent crystallized glass-ceramic

OHARA KK51 citations91

US5332700AJul 26, 1994

High dispersion optical glass

OHARA KK4 citations60

KABUSHIKI KAISYA OHARA

1 patent

US5942793AAug 24, 1999

Low alpha-ray level glass and method for manufacturing the same

KABUSHIKI KAISYA OHARA13 citations71

OHARA OPTICAL GLASS MFG

1 patent

US4501819AFeb 26, 1985

Glass for a photomask

OHARA OPTICAL GLASS MFG15 citations69