Issued Patents All Time
Showing 101–125 of 192 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6238586 | Etching solution for etching porous silicon, etching method using the etching solution and method of preparing semiconductor member using the etching solution | Kiyofumi Sakaguchi, Nobuhiko Sato | 2001-05-29 |
| 6211038 | Semiconductor device, and method for manufacturing the same | Katsumi Nakagawa, Shoji Nishida, Kiyofumi Sakaguchi, Yukiko Iwasaki | 2001-04-03 |
| 6190937 | Method of producing semiconductor member and method of producing solar cell | Katsumi Nakagawa, Shoji Nishida, Kiyofumi Sakaguchi | 2001-02-20 |
| 6171512 | Etching solution for etching porous silicon, etching method using the etching solution and method of preparing semiconductor member using the etching solution | Kiyofumi Sakaguchi, Nobuhiko Sato | 2001-01-09 |
| 6156624 | Method for production of SOI substrate by pasting and SOI substrate | Kenji Yamagata, Tadashi Atoji, Kiyofumi Sakaguchi | 2000-12-05 |
| 6150031 | Semiconductor member and process for preparing semiconductor member | — | 2000-11-21 |
| 6143628 | Semiconductor substrate and method of manufacturing the same | Nobuhiko Sato, Kiyofumi Sakaguchi | 2000-11-07 |
| 6140209 | Process for forming an SOI substrate | Masaaki Iwane, Kazuaki Ohmi | 2000-10-31 |
| 6136684 | Semiconductor substrate and process for production thereof | Nobuhiko Sato | 2000-10-24 |
| 6133112 | Thin film formation process | Masaaki Iwane | 2000-10-17 |
| 6121112 | Fabrication method for semiconductor substrate | Kiyofumi Sakaguchi | 2000-09-19 |
| 6121117 | Process for producing semiconductor substrate by heat treating | Nobuhiko Sato, Kiyofumi Sakaguchi | 2000-09-19 |
| 6106613 | Semiconductor substrate having compound semiconductor layer, process for its production, and electronic device fabricated on semiconductor substrate | Nobuhiko Sato | 2000-08-22 |
| 6103598 | Process for producing semiconductor substrate | Kenji Yamagata, Nobuhiko Sato, Kiyofumi Sakaguchi | 2000-08-15 |
| 6100165 | Method of manufacturing semiconductor article | Kiyofumi Sakaguchi | 2000-08-08 |
| 6100166 | Process for producing semiconductor article | Kiyofumi Sakaguchi, Shoji Nishida, Kenji Yamagata | 2000-08-08 |
| 6054363 | Method of manufacturing semiconductor article | Kiyofumi Sakaguchi, Tadashi Atoji | 2000-04-25 |
| 5980633 | Process for producing a semiconductor substrate | Kenji Yamagata | 1999-11-09 |
| 5970361 | Process for producing semiconductor device having porous regions | Hideya Kumomi, Nobuhiko Sato | 1999-10-19 |
| 5966620 | Process for producing semiconductor article | Kiyofumi Sakaguchi | 1999-10-12 |
| 5868947 | Si substrate and method of processing the same | Kiyofumi Sakaguchi | 1999-02-09 |
| 5869387 | Process for producing semiconductor substrate by heating to flatten an unpolished surface | Nobuhiko Sato, Kiyofumi Sakaguchi | 1999-02-09 |
| 5856229 | Process for production of semiconductor substrate | Kiyofumi Sakaguchi | 1999-01-05 |
| 5854123 | Method for producing semiconductor substrate | Nobuhiko Sato, Kiyofumi Sakaguchi | 1998-12-29 |
| 5853478 | Method for forming crystal and crystal article obtained by said method | Yasuhiro Naruse | 1998-12-29 |