Eriko Tsuruoka

Follow

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Organic thin film electroluminescent device
- Patent number 5,858,562
- Issue date Jan 12, 1999
- NEC Corporation
- Koji Utsugi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electrophotographic photosensitive product
- Patent number 5,667,925
- Issue date Sep 16, 1997
- NEC Corporation
- Eriko Tsuruoka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic photosensitive element
- Patent number 5,308,726
- Issue date May 3, 1994
- NEC Corporation
- Akira Hirano
- C07 - ORGANIC CHEMISTRY