Inventor

YAMAMOTO KEIJIRO

JP2 patents

⚠️ This page may combine multiple inventors who share the name “YAMAMOTO KEIJIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

AKISHIMA LAB MITSUI ZOSEN INC

1 patent

US5495237AFeb 27, 1996

Measuring tool for collecting down hole information and metering valve for producing mud-pulse used in the same

AKISHIMA LAB MITSUI ZOSEN INC88 citations88

FUJITSU LTD

1 patent

US5646549AJul 8, 1997

Semiconductor device having an output circuit for transmitting low-voltage differential signals

FUJITSU LTD4 citations55