Inventor · disambiguated record
Keiichi Koyama
Also filed as: KOYAMA KEIICHI
17 granted patents·1 pending application·463 citations·filing 1986–2013
95Inventor score
Top patents by PatentIndex Score
18 records- 0197USD357245STelevision setSHARP KK·Filed 1994·Granted Apr 11, 1995·81 cites·1 claims
- 0297USD351156STelevision setSHARP KK·Filed 1993·Granted Oct 4, 1994·77 cites·1 claims
- 0396USD373583STelevision setSHARP KK·Filed 1995·Granted Sep 10, 1996·79 cites·1 claims
- 0496USD369596STelevision setSHARP KK·Filed 1995·Granted May 7, 1996·78 cites·1 claims
- 0593USD303523SPortable computerSHARP KK·Filed 1987·Granted Sep 19, 1989·43 cites·1 claims
- 0682USD415757SDigital audio disk recorderSHARP KK·Filed 1998·Granted Oct 26, 1999·26 cites·1 claims
- 0779US7373545B2Fault tolerant computer systemMARATHON TECHN CORP·Filed 2006·Granted May 13, 2008·10 cites·22 claims
- 0872USD317777SElectronic calculatorSHARP KK·Filed 1988·Granted Jun 25, 1991·13 cites·1 claims
- 0970US7877552B2Symmetric multiprocessor fault tolerant computer systemMARATHON TECHN CORP·Filed 2006·Granted Jan 25, 2011·5 cites·32 claims
- 1067USD315572SElectronic calculator with printerSHARP KK·Filed 1988·Granted Mar 19, 1991·11 cites·1 claims
- 1167USD315358SElectronic calculator with printerSHARP KK·Filed 1988·Granted Mar 12, 1991·11 cites·1 claims
- 1265USD413107SElectronic computerSHARP KK·Filed 1998·Granted Aug 24, 1999·13 cites·1 claims
- 1360USD309626SElectronic calculatorSHARP KK·Filed 1987·Granted Jul 31, 1990·8 cites·1 claims
- 1445USD303955SPocket computerSHARP KK·Filed 1986·Granted Oct 10, 1989·4 cites·1 claims
- 1544US8994485B2Magnetic-anisotropic plastically deformed body, method for producing the same, and electromagnetic apparatus using the sameKEIHIN CORP·Filed 2013·Granted Mar 31, 2015·0 cites·20 claims
- 1639USD310235STypewriterSHARP KK·Filed 1988·Granted Aug 28, 1990·2 cites·1 claims
- 1739US2008004083A1Portable Information TerminalOHKI KUNIHIRO·Filed 2005·Application pending·0 cites
- 1838USD318064SInterface with printer for computerSHARP KK·Filed 1988·Granted Jul 9, 1991·2 cites·1 claims
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