HY

Haruzo Yoshikawa

DS Daini Seikosha: 1 patents #64 of 155Top 45%
SE Seiko Instruments & Electronics: 1 patents #72 of 164Top 45%
Overall (All Time): #2,349,821 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4612841 Electronic metronome — 1986-09-23
4218874 Electronic metronome Shuichi Ishida, Fumio Morohoshi 1980-08-26