Inventor
TSUYAMA KOUICHI
JP13 patents
⚠️ This page may combine multiple inventors who share the name “TSUYAMA KOUICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI CHEMICAL CO LTD
8 patentsUS5689879ANov 25, 1997
Metal foil for printed wiring board and production thereof
HITACHI CHEMICAL CO LTD46 citations96
US5915757AJun 29, 1999
Electrostatic protective device and method for fabricating same
HITACHI CHEMICAL CO LTD78 citations94
US5714794AFeb 3, 1998
Electrostatic protective device
HITACHI CHEMICAL CO LTD76 citations94
US5929741AJul 27, 1999
Current protector
HITACHI CHEMICAL CO LTD71 citations93
US5638598AJun 17, 1997
Process for producing a printed wiring board
HITACHI CHEMICAL CO LTD38 citations92
US5403672AApr 4, 1995
Metal foil for printed wiring board and production thereof
HITACHI CHEMICAL CO LTD33 citations92
US4859505AAug 22, 1989
Process for metallizing glass surface
HITACHI CHEMICAL CO LTD19 citations82
US5444189AAug 22, 1995
Printed wiring board and production thereof
HITACHI CHEMICAL CO LTD19 citations81