Inventor

CHIBA MITSUHARU

JP3 patents

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

SEIKO INSTR INC

2 patents

US4899636AFeb 13, 1990

Instrument for tuning musical instruments

SEIKO INSTR INC51 citations89

US7288709B2Oct 30, 2007

Tuning device and tuning method

SEIKO INSTR INC16 citations79

YAGI SHIGEKI

1 patent

US8847543B2Sep 30, 2014

Secondary battery charging device and secondary battery charging system

YAGI SHIGEKI9 citations75