Inventor · disambiguated record
Kohei Okuyama
Also filed as: OKUYAMA KOHEI
12 granted patents·1 pending application·671 citations·filing 1989–2018
93Inventor score
Files withMITSUBISHI CHEM CORP5MITSUBISHI HEAVY IND LTD2NISSIN KOGYO KK2CONNECT INC1MITSUBISHI CHEM IND1
Top patents by PatentIndex Score
13 records- 0196US6064560AActive carbon and process for its productionMITSUBISHI CHEM CORP·Filed 1997·Granted May 16, 2000·168 cites·3 claims
- 0295US5439080APitch-reinforced carbon fiber brake disc and pyrolytic carbon/resin-reinforced carbon fiber friction padsNISSIN KOGYO KK·Filed 1994·Granted Aug 8, 1995·77 cites·4 claims
- 0390US6094338AElectric double-layer capacitorMITSUBISHI CHEM CORP·Filed 1998·Granted Jul 25, 2000·114 cites·4 claims
- 0488US6136286ACarbon blackMITSUBISHI CHEM CORP·Filed 1997·Granted Oct 24, 2000·66 cites·9 claims
- 0585US5398784ABrake friction composite with reinforcing pyrolytic carbon and thermosetting resinNISSIN KOGYO KK·Filed 1992·Granted Mar 21, 1995·34 cites·4 claims
- 0685US5077130ACarbon fiber-reinforced carbon composite materialMITSUBISHI CHEM IND·Filed 1989·Granted Dec 31, 1991·46 cites·7 claims
- 0783US5390217ACarbon fiber-reinforced carbon composite materials processes for their production, and first walls of nuclear fusion reactors employing themMITSUBISHI HEAVY IND LTD·Filed 1992·Granted Feb 14, 1995·42 cites·16 claims
- 0882US5956225AActivated carbon, process for the preparation thereof and electric double layer-type capacitor electrodeMITSUBISHI CHEM CORP·Filed 1997·Granted Sep 21, 1999·73 cites·11 claims
- 0975US5965479AActivated carbon and process for producing the sameMITSUBISHI CHEM CORP·Filed 1997·Granted Oct 12, 1999·41 cites·14 claims
- 1044US5586152ACarbon fiber-reinforced carbon composite materials, processes for their production, and first walls of nuclear fusion reactors employing themMITSUBISHI HEAVY IND LTD·Filed 1995·Granted Dec 17, 1996·10 cites·4 claims
- 1138US2020329991A1Electroencephalogram measurement system, electroencephalogram measurement method, program, and non-transitory storage mediumPANASONIC CORP·Filed 2018·Application pending·0 cites
- 1235US8740332B2Inkjet head drive method and inkjet head drive deviceOKUYAMA KOHEI·Filed 2012·Granted Jun 3, 2014·0 cites·9 claims
- 1334US11779505B2Finger exerciserCONNECT INC·Filed 2018·Granted Oct 10, 2023·0 cites·5 claims
Join the waitlist — get patent alerts
Get an alert when Kohei Okuyama 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 →