Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6657893 | Nonvolatile semiconductor memory device and method for driving the same | Keita Takahashi, Hiroyuki Doi, Nobuyuki Tamura, Yasushi Okuda | 2003-12-02 |
| 6583453 | Semiconductor device having a voltage-regulator device | Hirotsugu Honda | 2003-06-24 |
| 6377490 | Nonvolatile semiconductor memory device and method for driving the same | Keita Takahashi, Hiroyuki Doi, Nobuyuki Tamura, Yasushi Okuda | 2002-04-23 |
| 6169307 | Nonvolatile semiconductor memory device comprising a memory transistor, a select transistor, and an intermediate diffusion layer | Keita Takahashi, Hiroyuki Doi, Nobuyuki Tamura, Yasushi Okuda | 2001-01-02 |
| 4314605 | Condenser | Hiroyuki Sumitomo, Kazuyuki Kobayashi, Katsutoshi Fukami, Kenzo Kawanishi | 1982-02-09 |
| 4182411 | Plate type condenser | Hiroyuki Sumitomo, Katsutoshi Fukami, Kazuyuki Kobayashi, Kenzo Kawanishi, Keido Yoshida | 1980-01-08 |