Toshio Aizawa

Follow

Person

Miyagi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Geomagnetic direction sensor
- Patent number 5,982,176
- Issue date Nov 9, 1999
- Sony Corporation
- Yoshihisa Kawamura
- G01 - MEASURING TESTING
Information Patent Grant
Recording disk having improved centering hub and magnetic yoke arra...
- Patent number 5,051,858
- Issue date Sep 24, 1991
- Minnesota Mining and Manufacturing Company
- Robert S. Jackson
- G11 - INFORMATION STORAGE
Information Patent Grant
Method and apparatus for manufacturing a magnetic recording disk
- Patent number 4,830,697
- Issue date May 16, 1989
- Sony Corporation
- Toshio Aizawa
- G11 - INFORMATION STORAGE