Issued Patents All Time
Showing 76–85 of 85 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6023425 | Nonvolatile memory system, semiconductor memory, and writing method | Tatsuya Ishii, Osamu Tsuchiya, Shooji Kubono | 2000-02-08 |
| 6009016 | Nonvolatile memory system semiconductor memory and writing method | Tatsuya Ishii, Osamu Tsuchiya, Shooji Kubono | 1999-12-28 |
| 5983858 | Throttle device for internal combustion engine | Yoshikatsu Hashimoto, Shigeo Tamaki, Shigeru Tokumoto | 1999-11-16 |
| 5982668 | Nonvolatile memory system, semiconductor memory and writing method | Tatsuya Ishii, Osamu Tsuchiya, Shooji Kubono | 1999-11-09 |
| 5889698 | Nonvolatile memory device and refreshing method | Hiroaki Kotani | 1999-03-30 |
| 5867428 | Nonvolatile memory system semiconductor memory and writing method | Tatsuya Ishii, Osamu Tsuchiya, Shooji Kubono | 1999-02-02 |
| 5506804 | Dynamic Random Access Type Semiconductor Device | Kazumasa Yanagisawa, Tatsuyuki Ohta, Tetsu Udagawa, Kyoko Ishii, Atsushi Nozoe +9 more | 1996-04-09 |
| 5304868 | Non-inverting buffer circuit device and semiconductor memory circuit device | Yuji Yokoyama, Kazuyuki Miyazawa, Shoji Wada | 1994-04-19 |
| 5276648 | Testing method for a semiconductor memory device | Kazumasa Yanagisawa, Tatsuyuki Ohta, Tetsu Udagawa, Kyoko Ishii, Atsushi Nozoe +9 more | 1994-01-04 |
| 5150325 | Bi-CMOS semiconductor memory device, including improved layout structure and testing method | Kazumasa Yanagisawa, Tatsuyuki Ohta, Tetsu Udagawa, Kyoko Ishii, Atsushi Nozoe +9 more | 1992-09-22 |