Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7755080 | Method for forming quantum dot, and quantum semiconductor device and method for fabricating the same | Hai-Zhi Song | 2010-07-13 |
| 7307030 | Method for forming quantum dot, and quantum semiconductor device and method for fabricating the same | Hai-Zhi Song | 2007-12-11 |
| 6770916 | Quantum circuit device and method for quantum operation | — | 2004-08-03 |
| 6194737 | Phase-locked circuit device using a single-electron tunneling junction element and method of fabricating the same | — | 2001-02-27 |
| 5856681 | Semiconductor device | — | 1999-01-05 |
| 5731717 | Logic or memory element based on n-stable phase-locking of single-electron tunneling oscillation, and computer using the same | Richard A. Kiehl | 1998-03-24 |
| 5214297 | High-speed semiconductor device | Kenichi Imamura, Naoki Yokoyama | 1993-05-25 |
| 5198879 | Heterojunction semiconductor device | — | 1993-03-30 |
| 5140252 | Method of charging secondary batteries | Masanobu Kizu, Ryo Nagai, Tsunemi Ohiwa, Kozo Kajita | 1992-08-18 |
| 4996166 | Process for fabricating a heterojunction bipolar transistor | — | 1991-02-26 |
| 4924283 | Heterojunction bipolar transistor and process for fabricating same | — | 1990-05-08 |
| 4837178 | Method for producing a semiconductor integrated circuit having an improved isolation structure | Naoki Yokoyama | 1989-06-06 |
| 4617724 | Process for fabricating heterojunction bipolar transistor with low base resistance | Naoki Yokoyama | 1986-10-21 |
| 4542406 | Video/audio simultaneous transmission system | Haruo Shimoyama, Shinobu Nomoto, Makoto Hiraoka, Toshio Hanabata | 1985-09-17 |