Inventor
NAGUMO TSUTOMU
JP6 patents
⚠️ This page may combine multiple inventors who share the name “NAGUMO TSUTOMU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NAGUMO TSUTOMU
4 patentsUS8634587B2Jan 21, 2014
Acoustic conversion device
NAGUMO TSUTOMU4 citations70
US8948439B2Feb 3, 2015
Acoustic conversion device and acoustic conversion device assembly method
NAGUMO TSUTOMU1 citations49
US8630439B2Jan 14, 2014
Acoustic conversion device and acoustic conversion device assembly method
NAGUMO TSUTOMU1 citations49
US8588456B2Nov 19, 2013
Acoustic conversion device
NAGUMO TSUTOMU0 citations39