Inventor · disambiguated record
Hisayuki Ushiyama
Also filed as: USHIYAMA HISAYUKI
10 granted patents·367 citations·filing 1979–1988
92Inventor score
Top patents by PatentIndex Score
10 records- 0195US4740443AEncapsulated electrostatic toner with locally attached non-magnetic inorganic particlesCANON KK·Filed 1987·Granted Apr 26, 1988·74 cites·27 claims
- 0293US4254201APressure sensitive adhesive toner of clustered encapsulated porous particles for use in electrostatic photographyRICOH KK·Filed 1979·Granted Mar 3, 1981·115 cites·11 claims
- 0388US4590142ACapsule tonerCANON KK·Filed 1984·Granted May 20, 1986·31 cites·6 claims
- 0481US4581312APressure-fixable capsule toner comprising pressure fixable core material and vinyl polymer shell materialCANON KK·Filed 1984·Granted Apr 8, 1986·22 cites·7 claims
- 0581US4565764AMicrocapsule toner and process of making sameCANON KK·Filed 1983·Granted Jan 21, 1986·32 cites·9 claims
- 0680US4514485ADeveloper for electrophotography having carrier particles, toner particles and electroconductive fine powdersCANON KK·Filed 1982·Granted Apr 30, 1985·22 cites·8 claims
- 0780US4497885APressure-fixable microcapsule tonerCANON KK·Filed 1984·Granted Feb 5, 1985·20 cites·11 claims
- 0878US4626490AEncapsulated tonerCANON KK·Filed 1985·Granted Dec 2, 1986·21 cites·19 claims
- 0967US4797344AEncapsulated toner having shell with first vinyl polymer with Mn of 2000-225000 and second vinyl polymer with Mn of 1000-15000CANON KK·Filed 1986·Granted Jan 10, 1989·22 cites·20 claims
- 1049US4888264AProcess for preparing toner or capsule toner for use in electrophotographyCANON KK·Filed 1988·Granted Dec 19, 1989·8 cites·23 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →