Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5422500 | Ohmic contact electrodes for N-type semiconductor cubic boron nitride | Tadashi Tomikawa, Nobuhiko Fujita | 1995-06-06 |
| 5306928 | Diamond semiconductor device having a non-doped diamond layer formed between a BN substrate and an active diamond layer | Tadashi Tomikawa, Nobuhiko Fujita | 1994-04-26 |
| 5298461 | Method of forming ohmic contact electrodes for n-type semiconductor cubic boron nitride | Tadashi Tomikawa, Nobuhiko Fujita | 1994-03-29 |
| 5285109 | Ohmic contact electrodes for n-type semiconductor cubic boron nitride | Tadashi Tomikawa, Nobuhiko Fujita | 1994-02-08 |
| 5210431 | Ohmic connection electrodes for p-type semiconductor diamonds | Tadashi Tomikawa, Shoji Nakagama, Masayuki Ishii, Nobuhiko Fujita | 1993-05-11 |
| 5144380 | Diamond semiconductor device with a non-doped diamond thin film between a diamond active layer and a substrate | Tadashi Tomikawa, Nobuhiko Fujita | 1992-09-01 |
| 5075757 | Ohmic contact electrodes for semiconductor diamonds | Masayuki Ishii, Shoji Nakagama, Tadashi Tomikawa, Nobuhiko Fujita | 1991-12-24 |