YH

Yoshio Hattori

SI Seiko Instruments: 1 patents #7 of 65Top 15%
SE Seiko Instruments & Electronics: 1 patents #4 of 37Top 15%
Overall (1989): #12,531 of 140,708Top 9%
2
Patents 1989

Issued Patents 1989

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4821001 Circuit oscillator 1989-04-11
4816894 Semiconductor variable capacitance element 1989-03-28