Inventor · disambiguated record
Katsutoshi Yamada
Also filed as: YAMADA KATSUTOSHI
3 granted patents·115 citations·filing 1999–2001
77Inventor score
Technology areasC02F
Files withHITACHI LTD3
Top patents by PatentIndex Score
3 records- 0191US6444172B2Water quality meter and water quality monitoring systemHITACHI LTD·Filed 2001·Granted Sep 3, 2002·40 cites·6 claims
- 0287US6398930B2Water quality meter and water quality monitoring systemHITACHI LTD·Filed 2001·Granted Jun 4, 2002·28 cites·2 claims
- 0385US6290908B1Water quality meter and water monitoring systemHITACHI LTD·Filed 1999·Granted Sep 18, 2001·47 cites·24 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →