Inventor
KAWACHI MANABU
JP9 patents
⚠️ This page may combine multiple inventors who share the name “KAWACHI MANABU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
PIONEER ELECTRONIC CORP
8 patentsUS4811406AMar 7, 1989
Compound speaker system
PIONEER ELECTRONIC CORP91 citations94
USD276045SOct 23, 1984
Loudspeaker
PIONEER ELECTRONIC CORP26 citations80
USD274723SJul 17, 1984
Loudspeaker
PIONEER ELECTRONIC CORP26 citations80
USD265086SJun 22, 1982
Loudspeaker
PIONEER ELECTRONIC CORP25 citations80
USD258208SFeb 10, 1981
Loudspeaker
PIONEER ELECTRONIC CORP12 citations72
US4011513AMar 8, 1977
Tuning device for a radio receiver
PIONEER ELECTRONIC CORP11 citations72
USD281241SNov 5, 1985
Loudspeaker
PIONEER ELECTRONIC CORP5 citations61
USD276044SOct 23, 1984
Loudspeaker
PIONEER ELECTRONIC CORP5 citations61