Inventor
NAGAYAMA KOUSEI
JP8 patents
Patents
8 patentsUS4821142AApr 11, 1989
Ceramic multilayer circuit board and semiconductor module
HITACHI LTD55 citations96
US4672152AJun 9, 1987
Multilayer ceramic circuit board
HITACHI LTD76 citations95
US6630115B1Oct 7, 2003
Exhaust emission control process for internal combustion engines
HITACHI LTD30 citations92
US4736276AApr 5, 1988
Multilayered ceramic wiring circuit board and the method of producing the same
HITACHI LTD21 citations81
US6841511B2Jan 11, 2005
Internal combustion engine exhaust gas purification apparatus, exhaust gas purification process and exhaust gas purification catalyst
HITACHI LTD8 citations73
USRE34887EMar 28, 1995
Ceramic multilayer circuit board and semiconductor module
HITACHI LTD15 citations73
US4691856ASep 8, 1987
Diffusion bonding method using a high energy beam
HITACHI LTD16 citations71
US6883305B1Apr 26, 2005
Method for cleaning exhaust gas from an internal combustion engine
HITACHI LTD3 citations62