Inventor · disambiguated record
Hisao Yatsuda
Also filed as: YATSUDA HISAO
4 granted patents·83 citations·filing 1983–1997
77Inventor score
Technology areasC03C
Top patents by PatentIndex Score
4 records- 0181US5336643ALow expansion transparent crystallized glass-ceramicOHARA KK·Filed 1993·Granted Aug 9, 1994·51 cites·4 claims
- 0253US4501819AGlass for a photomaskOHARA OPTICAL GLASS MFG·Filed 1983·Granted Feb 26, 1985·15 cites·1 claims
- 0345US5942793ALow alpha-ray level glass and method for manufacturing the sameKABUSHIKI KAISYA OHARA·Filed 1997·Granted Aug 24, 1999·13 cites·6 claims
- 0430US5332700AHigh dispersion optical glassOHARA KK·Filed 1993·Granted Jul 26, 1994·4 cites·8 claims
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