Inventor · disambiguated record
Haruhisa Hirakawa
Also filed as: HIRAKAWA HARUHISA
6 granted patents·183 citations·filing 1992–1997
86Inventor score
Files withFUTABA DENSHI KOGYO KK6
Top patents by PatentIndex Score
6 records- 0191US5955850AField emission display deviceFUTABA DENSHI KOGYO KK·Filed 1997·Granted Sep 21, 1999·79 cites·15 claims
- 0278US5559397AColor filter and fluorescent display device having color filters incorporated thereinFUTABA DENSHI KOGYO KK·Filed 1995·Granted Sep 24, 1996·29 cites·7 claims
- 0374US5965978AField emission display device with improved dielectric breakdown characteristicFUTABA DENSHI KOGYO KK·Filed 1997·Granted Oct 12, 1999·31 cites·4 claims
- 0468US5543685AFlourescent display device having a protective film interposed between color filters and anode electrodesFUTABA DENSHI KOGYO KK·Filed 1994·Granted Aug 6, 1996·25 cites·1 claims
- 0561US5606462AColor filter and fluorescent display device having color filters incorporated thereinFUTABA DENSHI KOGYO KK·Filed 1994·Granted Feb 25, 1997·12 cites·9 claims
- 0645US5387838AFluorescent display device with high duty ratioFUTABA DENSHI KOGYO KK·Filed 1992·Granted Feb 7, 1995·7 cites·19 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →