Hiroyuki Sumiya

Follow

Person

Fussa, JA

People

Patents Grantslast 30 patents

Information Patent Grant
Convergence means for color cathode ray tube
- Patent number 4,090,110
- Issue date May 16, 1978
- Sony Corporation
- Seiichi Ogawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Malfunction indication apparatus for use in a CRT deflection circuit
- Patent number 4,058,754
- Issue date Nov 15, 1977
- Sony Corporation
- Toshinobu Ohnishi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE