Inventor · disambiguated record
Yoshiaki Ibuchi
Also filed as: IBUCHI YOSHIAKI
29 granted patents·229 citations·filing 1982–2000
96Inventor score
Top patents by PatentIndex Score
29 records- 0190US4674734AAutomatic document feederSHARP KK·Filed 1985·Granted Jun 23, 1987·40 cites·13 claims
- 0287US6381442B1Image forming apparatus with paper post-treatment deviceSHARP KABUSHIKI KAISA·Filed 2000·Granted Apr 30, 2002·31 cites·58 claims
- 0376US5140378AImage forming apparatus with a pressure development unitSHARP KK·Filed 1990·Granted Aug 18, 1992·16 cites·9 claims
- 0472US4480908AThermal fixing roller system in a copying machineSHARP KK·Filed 1982·Granted Nov 6, 1984·16 cites·3 claims
- 0566US4935768AApparatus for transporting a photosensitive sheetSHARP KK·Filed 1989·Granted Jun 19, 1990·10 cites·3 claims
- 0665US5233389ADriving device for a document platen and copying machine incorporating a movable document platenSHARP KK·Filed 1992·Granted Aug 3, 1993·11 cites·29 claims
- 0764US4607946AAutomatic dual electrophotographic copying machineSHARP KK·Filed 1984·Granted Aug 26, 1986·12 cites·4 claims
- 0858US4748470AAutomatic duplex electrophotographic copying machineSHARP KK·Filed 1987·Granted May 31, 1988·11 cites·3 claims
- 0956US4843427ASelective charge removal system for copierSHARP KK·Filed 1988·Granted Jun 27, 1989·10 cites·3 claims
- 1053US4965622AImage forming apparatusSHARP KK·Filed 1989·Granted Oct 23, 1990·6 cites·9 claims
- 1151US4990953ACopying apparatusSHARP KK·Filed 1989·Granted Feb 5, 1991·5 cites·5 claims
- 1250US4962402APressure device for use in image forming apparatusesSHARP KK·Filed 1989·Granted Oct 9, 1990·5 cites·3 claims
- 1346US5021833ACopying machine with multiple light sourcesSHARP KK·Filed 1989·Granted Jun 4, 1991·4 cites·10 claims
- 1446US4952968AApparatus for the formation of imagesSHARP KK·Filed 1989·Granted Aug 28, 1990·7 cites·3 claims
- 1545US5267002ADocument platen driving deviceSHARP KK·Filed 1993·Granted Nov 30, 1993·10 cites·16 claims
- 1643US5160960AMethod of transporting a photosensitive sheetSHARP KK·Filed 1991·Granted Nov 3, 1992·4 cites·6 claims
- 1740US5016053AStirrer roller of developing device in electrophotographic copying machineSHARP KK·Filed 1990·Granted May 14, 1991·9 cites·6 claims
- 1840US4664503ACopying machineSHARP KK·Filed 1986·Granted May 12, 1987·4 cites·3 claims
- 1938US4980722AApparatus for transporting a photosensitive sheet at different speeds in accordance with the operation being performed by the machineSHARP KK·Filed 1989·Granted Dec 25, 1990·2 cites·3 claims
- 2037US4951085AImage forming apparatusSHARP KK·Filed 1989·Granted Aug 21, 1990·2 cites·5 claims
- 2136US5084726ACopying machineSHARP KK·Filed 1990·Granted Jan 28, 1992·2 cites·6 claims
- 2236US5080010APressure roller deviceSHARP KK·Filed 1991·Granted Jan 14, 1992·4 cites·15 claims
- 2336US4668079AElectrophotographic copying machine with a function for selecting half-sized copy paperSHARP KK·Filed 1985·Granted May 26, 1987·3 cites·2 claims
- 2434US4998130AMethod of loading media sheetSHARP KK·Filed 1990·Granted Mar 5, 1991·1 cites·4 claims
- 2533US5017959AImage forming apparatus and media cartridge for use in the sameSHARP KK·Filed 1990·Granted May 21, 1991·1 cites·15 claims
- 2632US5003344AProjection unit for a light permeable original in a copying machineSHARP KK·Filed 1990·Granted Mar 26, 1991·1 cites·11 claims
- 2730US5084725AProcess speed control device for image formationSHARP KK·Filed 1990·Granted Jan 28, 1992·1 cites·1 claims
- 2830US5028952AApparatus for the formation of imagesSHARP KK·Filed 1989·Granted Jul 2, 1991·1 cites·2 claims
- 2924US5298942ACopying apparatus having liquid crystal cellsSHARP KK·Filed 1992·Granted Mar 29, 1994·0 cites·11 claims
Join the waitlist — get patent alerts
Get an alert when Yoshiaki Ibuchi files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →