TK

Takeshi Kumagai

AC Alps Electric Co.: 2 patents #20 of 156Top 15%
📍 Iwate, JP: #2 of 9 inventorsTop 25%
Overall (1989): #15,001 of 140,708Top 15%
2
Patents 1989

Issued Patents 1989

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4845578 Disk holding device for disk drive 1989-07-04
4831474 Disk supporting mechanism in disk driving device 1989-05-16