Tsutomu Okayama

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Hitachinaka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Operational amplifier and scanning electron microscope using the same
- Patent number 7,521,998
- Issue date Apr 21, 2009
- Hitachi High-Technologies Corporation
- Tsutomu Okayama
- H03 - BASIC ELECTRONIC CIRCUITRY

Patents Applicationslast 30 patents

Information Patent Application
Operational amplifier and scanning electron microscope using the same
- Publication number 20070115056
- Publication date May 24, 2007
- Hitachi High-Technologies Corporation
- Tsutomu Okayama
- H03 - BASIC ELECTRONIC CIRCUITRY