Inventor · disambiguated record
Kousei Nagayama
Also filed as: NAGAYAMA KOUSEI
8 granted patents·224 citations·filing 1985–2003
89Inventor score
Files withHITACHI LTD8
Top patents by PatentIndex Score
8 records- 0185US4672152AMultilayer ceramic circuit boardHITACHI LTD·Filed 1986·Granted Jun 9, 1987·76 cites·6 claims
- 0283US4821142ACeramic multilayer circuit board and semiconductor moduleHITACHI LTD·Filed 1987·Granted Apr 11, 1989·55 cites·9 claims
- 0371US6630115B1Exhaust emission control process for internal combustion enginesHITACHI LTD·Filed 1999·Granted Oct 7, 2003·30 cites·6 claims
- 0462US6841511B2Internal combustion engine exhaust gas purification apparatus, exhaust gas purification process and exhaust gas purification catalystHITACHI LTD·Filed 2003·Granted Jan 11, 2005·8 cites·12 claims
- 0561US4736276AMultilayered ceramic wiring circuit board and the method of producing the sameHITACHI LTD·Filed 1986·Granted Apr 5, 1988·21 cites·21 claims
- 0657US4691856ADiffusion bonding method using a high energy beamHITACHI LTD·Filed 1985·Granted Sep 8, 1987·16 cites·7 claims
- 0748US6883305B1Method for cleaning exhaust gas from an internal combustion engineHITACHI LTD·Filed 2000·Granted Apr 26, 2005·3 cites·15 claims
- 0848USRE34887ECeramic multilayer circuit board and semiconductor moduleHITACHI LTD·Filed 1991·Granted Mar 28, 1995·15 cites·6 claims
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