Masayoshi Sunada

Follow

Person

Hitachi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Alignment disk for magnetic disk driving apparatus and method and a...
- Patent number 4,992,893
- Issue date Feb 12, 1991
- Hitachi, Ltd.
- Hiroshi Kanai
- G11 - INFORMATION STORAGE
Information Patent Grant
Head positioning system for magnetic recording/playback apparatus
- Patent number 4,622,603
- Issue date Nov 11, 1986
- Hitachi, Ltd.
- Sinji Mizunuma
- G11 - INFORMATION STORAGE
Information Patent Grant
Remote-controlled automatic control apparatus
- Patent number 4,385,296
- Issue date May 24, 1983
- Hitachi, Ltd.
- Toshio Tsubaki
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Developer quality monitoring device
- Patent number 4,331,184
- Issue date May 25, 1982
- Hitachi, Ltd.
- Isamu Terashima
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY