Inventor · disambiguated record
Ichirou Katsuyama
Also filed as: KATSUYAMA ICHIROU
7 granted patents·166 citations·filing 1989–2003
88Inventor score
Files withHITACHI LTD7
Top patents by PatentIndex Score
7 records- 0193US5461501ALiquid crystal substrate having 3 metal layers with slits offset to block light from reaching the substrateHITACHI LTD·Filed 1993·Granted Oct 24, 1995·85 cites·12 claims
- 0278US6693691B2LCD and projection type display using sameHITACHI LTD·Filed 2002·Granted Feb 17, 2004·12 cites·8 claims
- 0370US6879358B2LCD and projection type display using sameHITACHI LTD·Filed 2003·Granted Apr 12, 2005·8 cites·18 claims
- 0470US6034749ALight insensitive type active matrix with P and N regions connected to a reference potentialHITACHI LTD·Filed 1995·Granted Mar 7, 2000·28 cites·13 claims
- 0561US4964719AControl method of brightness of screen used for projection display and control apparatus of the sameHITACHI LTD·Filed 1989·Granted Oct 23, 1990·18 cites·17 claims
- 0653US6686976B2Liquid crystal light valve and projection type display using sameHITACHI LTD·Filed 2001·Granted Feb 3, 2004·4 cites·12 claims
- 0750US6437842B1LCD and projection type display using three metalization layers and black layerHITACHI LTD·Filed 1999·Granted Aug 20, 2002·11 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →