Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6084278 | MOSFET with gradiently doped polysilicon gate electrode | — | 2000-07-04 |
| 5920793 | Method for manufacturing a through hole | — | 1999-07-06 |
| 5828104 | MOS structure device having asymmetric LDD structure and fabrication method thereof | — | 1998-10-27 |
| 5710462 | Semiconductor integrated circuit device having multi-level wiring structure without dot pattern | — | 1998-01-20 |
| D372728 | Electronic piano | — | 1996-08-13 |
| 5420068 | Semiconductor integrated circuit and a method for manufacturing a fully planar multilayer wiring structure | — | 1995-05-30 |
| 5404045 | Semiconductor device with an electrode pad having increased mechanical strength | — | 1995-04-04 |
| D345574 | Electronic keyboard musical instrument | — | 1994-03-29 |
| 5164334 | Semiconductor integrated circuit device with multi-level wiring structure | — | 1992-11-17 |
| 5155576 | Semiconductor integrated circuit having a multilayer wiring structure | — | 1992-10-13 |
| D325213 | Electronic keyboard musical instrument | — | 1992-04-07 |
| 5091340 | Method for forming multilayer wirings on a semiconductor device | — | 1992-02-25 |
| D322086 | Electronic piano | Yasuo Yamawaki | 1991-12-03 |
| D320404 | Electronic piano | Yasuo Yamawaki | 1991-10-01 |
| 5045917 | Multi-level semiconductor structure and process of fabricating thereof | — | 1991-09-03 |
| D317774 | Electronic keyboard musical instrument | — | 1991-06-25 |
| D313033 | Electronic keyboard musical instrument | — | 1990-12-18 |
| 4970177 | Multi-level semiconductor structure and process of fabricating thereof | — | 1990-11-13 |