Inventor
NAKAGAWA HISAO
JP9 patents
⚠️ This page may combine multiple inventors who share the name “NAKAGAWA HISAO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MATSUSHITA ELECTRIC WORKS LTD
3 patentsUS4493223AJan 15, 1985
Gear shifting speed change apparatus for a rotary electric tool
MATSUSHITA ELECTRIC WORKS LTD122 citations94
US5084967AFeb 4, 1992
Dry shaver with a trimmer
MATSUSHITA ELECTRIC WORKS LTD32 citations91
US4675997AJun 30, 1987
Electric shaver powered by rechargeable batteries
MATSUSHITA ELECTRIC WORKS LTD5 citations62