Tetsushi Sakai

Follow

Person

Sayama, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Bipolar transistors
- Patent number 4,920,401
- Issue date Apr 24, 1990
- Nippon Telegraph and Telephone Public Corp.
- Tetsushi Sakai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Bipolar transistors having vertically arrayed collector-base-emitte...
- Patent number 4,531,282
- Issue date Jul 30, 1985
- Nippon Telegraph and Telephone Public Corp.
- Tetsushi Sakai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of making semiconductor devices
- Patent number 4,379,001
- Issue date Apr 5, 1983
- Nippon Telegraph and Telephone Public Corp.
- Tetsushi Sakai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor devices and method of manufacturing the same
- Patent number 4,188,707
- Issue date Feb 19, 1980
- Nippon Telegraph & Telephone Public Corporation
- Masaru Asano
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor integrated circuit devices having inverted frustum-sh...
- Patent number 4,128,845
- Issue date Dec 5, 1978
- Nippon Telegraph and Telephone Public Corp.
- Tetsushi Sakai
- H01 - BASIC ELECTRIC ELEMENTS