Inventor · disambiguated record
Hiroyoshi Yamaga
Also filed as: YAMAGA HIROYOSHI
13 granted patents·181 citations·filing 1981–2000
91Inventor score
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13 records- 0195US4624907AElectrophotographic toner containing metal complexHODOGAYA CHEMICAL CO LTD·Filed 1984·Granted Nov 25, 1986·83 cites·4 claims
- 0289US4433040AElectrophotographic toner containing a metal complex dyeHODOGAYA CHEMICAL CO LTD·Filed 1981·Granted Feb 21, 1984·45 cites·4 claims
- 0370US5645967ACharge controlling agent composition and toner containing said compositionHODOGAYA CHEMICAL CO LTD·Filed 1993·Granted Jul 8, 1997·19 cites·4 claims
- 0456US5693445AElectrostatic image developing tonerHODOGAYA CHEMICAL CO LTD·Filed 1996·Granted Dec 2, 1997·12 cites·15 claims
- 0552US6552211B2Zirconium compound and electrophotographic toner employing itHODOGAYA CHEMICAL CO LTD·Filed 2000·Granted Apr 22, 2003·5 cites·3 claims
- 0643US6410198B1Zirconium compound and electrophotographic toner employing itHODOGAYA CHEMICAL CO LTD·Filed 1998·Granted Jun 25, 2002·3 cites·5 claims
- 0739US5641884ASpiro-naphtho-oxazine compound and photosensitive materials using the sameHODOGAYA CHEMICAL CO LTD·Filed 1994·Granted Jun 24, 1997·1 cites·24 claims
- 0838US5883232AHydrophobic cationic dyes and thermal transfer ink ribbons using the sameSONY CORP·Filed 1998·Granted Mar 16, 1999·1 cites·4 claims
- 0938US5834600AHydrophobic cationic dyes and thermal transfer ink ribbons using the sameSONY CORP·Filed 1996·Granted Nov 10, 1998·1 cites·5 claims
- 1036US6110634AElectrophotographic tonerHODOGAYA CHEMICAL CO LTD·Filed 1998·Granted Aug 29, 2000·5 cites·8 claims
- 1133US5770341AFriction charge-providing member for positively-chargeable tonerHODOGAYA CHEMICAL CO LTD·Filed 1994·Granted Jun 23, 1998·3 cites·1 claims
- 1230US5164283AElectrophotographic developing powderHODOGAYA CHEMICAL CO LTD·Filed 1991·Granted Nov 17, 1992·1 cites·7 claims
- 1330US4977249AMetal of hydroxy-phenylaze and hydroxy-naphthylazo compounds as near-red absorbersHODOGAYA CHEMICAL CO LTD·Filed 1989·Granted Dec 11, 1990·2 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →