Inventor · disambiguated record
Takekazu Maruyama
Also filed as: MARUYAMA TAKEKAZU
4 granted patents·378 citations·filing 1991–1997
81Inventor score
Files withHITACHI LTD4
Top patents by PatentIndex Score
4 records- 0196US5598572AInformation terminal system getting information based on a location and a direction of a portable terminal deviceHITACHI LTD·Filed 1995·Granted Jan 28, 1997·296 cites·15 claims
- 0267US5369756AFault tree displaying method and process diagnosis support systemHITACHI LTD·Filed 1991·Granted Nov 29, 1994·51 cites·13 claims
- 0346US5959859APlant monitoring/controlling apparatusHITACHI LTD·Filed 1997·Granted Sep 28, 1999·17 cites·2 claims
- 0435US5790424APlant monitoring apparatus and monitoring methodHITACHI LTD·Filed 1995·Granted Aug 4, 1998·14 cites·19 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →