Akio Oosaki

Follow

Person

Kanagawa, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Load current output circuit for electronic device and IC tester usi...
- Patent number 6,448,800
- Issue date Sep 10, 2002
- Hitachi Electronics Engineering Co., Ltd.
- Keiichi Yamamoto
- G01 - MEASURING TESTING
Information Patent Grant
Diode element circuit and switch circuit using the same
- Patent number 6,424,201
- Issue date Jul 23, 2002
- Hitachi Electronics Engineering Co., Ltd.
- Keiichi Yamamoto
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Semiconductor device tester and method for testing semiconductor de...
- Patent number 6,275,023
- Issue date Aug 14, 2001
- Hitachi Electronics Engineering Co., Ltd.
- Akio Oosaki
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
Diode element circuit and switch circuit using the same
- Publication number 20010048337
- Publication date Dec 6, 2001
- Keiichi Yamamoto
- H01 - BASIC ELECTRIC ELEMENTS