Inventor · disambiguated record
Hideyasu Yamanaka
Also filed as: YAMANAKA HIDEYASU
6 granted patents·120 citations·filing 1980–2001
86Inventor score
Files withRICOH KK6
Top patents by PatentIndex Score
6 records- 0187US5758950ALight source device for an image forming apparatusRICOH KK·Filed 1996·Granted Jun 2, 1998·47 cites·29 claims
- 0277US6502960B2Light source device for an image forming apparatusRICOH KK·Filed 2001·Granted Jan 7, 2003·14 cites·7 claims
- 0376US5997153ALight source device for an image forming apparatusRICOH KK·Filed 1998·Granted Dec 7, 1999·33 cites·24 claims
- 0470US6299331B1Light source device for an image forming apparatusRICOH KK·Filed 2000·Granted Oct 9, 2001·9 cites·1 claims
- 0559US6179445B1Light source device for an image forming apparatusRICOH KK·Filed 1999·Granted Jan 30, 2001·15 cites·15 claims
- 0631US4339702AStepping motor drive apparatusRICOH KK·Filed 1980·Granted Jul 13, 1982·2 cites·2 claims
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →