Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5141881 | Method for manufacturing a semiconductor integrated circuit | Kazuo Takeda, Toshimasa Sadakata, Nobuyuki Sekikawa, Tadayoshi Takada, Yasuhiro Tamada +1 more | 1992-08-25 |
| 4898839 | Semiconductor integrated circuit and manufacturing method therefor | Chikao Fujinuma, Nobuyuki Sekikawa, Tadayoshi Takada, Yoshiaki Sano, Toshimasa Sadakata | 1990-02-06 |
| 4780425 | Method of making a bipolar transistor with double diffused isolation regions | — | 1988-10-25 |