Issued Patents 1994
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5352935 | Semiconductor integrated circuit device with internal voltage controlling circuit | Ryuji Yamamura, Tadahiko Sugibayashi | 1994-10-04 |
| 5329168 | Semiconductor integrated circuit device equipped with substrate biasing system selectively powered from internal and external power sources | Tadahiko Sugibayashi, Yasuji Koshikawa | 1994-07-12 |
| 5319302 | Semiconductor integrated circuit device having voltage regulating unit for variable internal power voltage level | Yasuji Koshikawa, Tadahiko Sugibayashi | 1994-06-07 |
| 5319601 | Power supply start up circuit for dynamic random access memory | Koji Kawata, Tadahiko Sugibayashi | 1994-06-07 |
| 5316767 | Whitening cosmetic composition | Seigo Takasawa, Yoshiharu Yokoo, Tadayasu Furukawa | 1994-05-31 |
| 5287011 | Power-on detecting circuit desirable for integrated circuit equipped with internal step-down circuit | Yasuji Koshikawa, Tadahiko Sugibayashi | 1994-02-15 |