Inventor · disambiguated record
Sadao Iizuka
Also filed as: IIZUKA SADAO
7 granted patents·50 citations·filing 1979–2005
83Inventor score
Top patents by PatentIndex Score
7 records- 0182US7508746B2Optical pickup deviceSANYO ELECTRIC CO·Filed 2005·Granted Mar 24, 2009·5 cites·8 claims
- 0269US4274865AProduction of magnetic powderKANTO DENKA KOGYO KK·Filed 1979·Granted Jun 23, 1981·19 cites·20 claims
- 0362US4306921AProduction of magnetic powderKANTO DENKA KOGYO KK·Filed 1979·Granted Dec 22, 1981·12 cites·18 claims
- 0449US4447264AProduction of magnetic powderKANTO DENKA KOGYO KK·Filed 1983·Granted May 8, 1984·7 cites·7 claims
- 0540US7672197B2Optical pickup device and manufacturing method thereofSANYO ELECTRIC CO·Filed 2005·Granted Mar 2, 2010·0 cites·6 claims
- 0635US4404024AProduction of magnetic powderKANTO DENKA KOGYO KK·Filed 1981·Granted Sep 13, 1983·3 cites·18 claims
- 0734US4384892AProduction of magnetic powderKANTO DENKA KOGYO KK·Filed 1981·Granted May 24, 1983·4 cites·10 claims
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