Inventor · disambiguated record
Shigeo Koyama
Also filed as: KOYAMA SHIGEO
28 granted patents·572 citations·filing 1979–2000
97Inventor score
Top patents by PatentIndex Score
28 records- 0197US5028966AImage-forming machineMITA INDUSTRIAL CO LTD·Filed 1989·Granted Jul 2, 1991·75 cites·24 claims
- 0295US4548394ACopying paper conveying device in electrostatic copying apparatusMITA INDUSTRIAL CO LTD·Filed 1983·Granted Oct 22, 1985·50 cites·6 claims
- 0392US4751484ADrum unit exchange time indicating device for image forming apparatusMITA INDUSTRIAL CO LTD·Filed 1987·Granted Jun 14, 1988·46 cites·7 claims
- 0486US5111244AImage-forming machine with improved process and optional unit assembliesMITA INDUSTRIAL CO LTD·Filed 1988·Granted May 5, 1992·31 cites·29 claims
- 0584US5202728AImage-forming machine with improved developer agitating means, developer regulating blade means, cleaning device, and toner recovery systemMITA INDUSTRIAL CO LTD·Filed 1989·Granted Apr 13, 1993·30 cites·24 claims
- 0683US4387889ACopying apparatus provided with a cassette-type paper feeding mechanismMITA INDUSTRIAL CO LTD·Filed 1981·Granted Jun 14, 1983·27 cites·5 claims
- 0781US4968016AImage-forming machineMITA INDUSTRIAL CO LTD·Filed 1988·Granted Nov 6, 1990·20 cites·13 claims
- 0880US5668581AInk jet printing apparatusMITA INDUSTRIAL CO LTD·Filed 1994·Granted Sep 16, 1997·46 cites·56 claims
- 0979US4658625ABending machine and a die changing system for such bending machineAMADA CO LTD·Filed 1985·Granted Apr 21, 1987·22 cites·6 claims
- 1074US4585324AShell-type electrostatic copying apparatusMITA INDUSTRIAL CO LTD·Filed 1984·Granted Apr 29, 1986·17 cites·18 claims
- 1173US4400077APhotosensitive drum for electrostatic copying apparatusMITA INDUSTRIAL CO LTD·Filed 1981·Granted Aug 23, 1983·17 cites·5 claims
- 1271US4468111ADeveloping device for use on an electrostatic copying apparatusMITA INDUSTRIAL CO LTD·Filed 1982·Granted Aug 28, 1984·17 cites·8 claims
- 1370US4444494ACopying apparatus equipped with an original-support device, and an original-holding mechanism thereforMITA INDUSTRIAL CO LTD·Filed 1983·Granted Apr 24, 1984·8 cites·5 claims
- 1469US5694801ABending press systemAMADA CO LTD·Filed 1995·Granted Dec 9, 1997·16 cites·10 claims
- 1568US4410259AApparatus for developing latent electrostatic imageMITA INDUSTRIAL CO LTD·Filed 1981·Granted Oct 18, 1983·15 cites·36 claims
- 1665US4640604AElectrostatic photographic copying machine provided with a movable sorterMITA INDUSTRIAL CO LTD·Filed 1983·Granted Feb 3, 1987·13 cites·4 claims
- 1765US4569586APaper supply system of copying machineMITA INDUSTRIAL CO LTD·Filed 1984·Granted Feb 11, 1986·14 cites·6 claims
- 1865US4436412ACleaning device for use on an electrostatic copying apparatusMITA INDUSTRIAL CO LTD·Filed 1981·Granted Mar 13, 1984·14 cites·8 claims
- 1964US6422939B1Storage medium for storing an application program for a car racing gameGENKI CO LTD·Filed 2000·Granted Jul 23, 2002·18 cites·10 claims
- 2063US4656861ABending machine and a die changing system for such bending machineAMADA CO LTD·Filed 1986·Granted Apr 14, 1987·17 cites·7 claims
- 2161US5934133ABending press systemAMADA CO LTD·Filed 1997·Granted Aug 10, 1999·12 cites·10 claims
- 2260US4582418AVariable magnification electrostatic copying apparatusMITA INDUSTRIAL CO LTD·Filed 1983·Granted Apr 15, 1986·11 cites·23 claims
- 2360US4477173AToner replenishing device for an electrostatic copying apparatusMITA INDUSTRIAL CO LTD·Filed 1982·Granted Oct 16, 1984·11 cites·2 claims
- 2456US5056768AImage-forming machineMITA INDUSTRIAL CO LTD·Filed 1990·Granted Oct 15, 1991·9 cites·19 claims
- 2542US5521681AImage forming apparatusMITA INDUSTRIAL CO LTD·Filed 1995·Granted May 28, 1996·7 cites·16 claims
- 2639US4259008AElectrostatic copying apparatusMITA INDUSTRIAL CO LTD·Filed 1979·Granted Mar 31, 1981·4 cites·33 claims
- 2731US4452530ACopying apparatus equipped with an original-support device, and an original-holding mechanism thereforMITA INDUSTRIAL CO LTD·Filed 1981·Granted Jun 5, 1984·3 cites·5 claims
- 2829USD309911SProcess unit for copying machineMITA INDUSTRIAL CO LTD·Filed 1989·Granted Aug 14, 1990·2 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →