Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4778772 | Method of manufacturing a bipolar transistor | Kouichi Takahashi, Toshio Yonezawa | 1988-10-18 |
| 4667218 | NPN transistor with base double doped with arsenic and boron | Kouichi Takahashi, Toshio Yonezawa | 1987-05-19 |
| 4263067 | Fabrication of transistors having specifically paired dopants | Kouichi Takahashi, Toshio Yonezawa | 1981-04-21 |
| 4226650 | Method of reducing emitter dip in transistors utilizing specifically paired dopants | Kouichi Takahashi, Toshio Yonezawa | 1980-10-07 |