Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6262924 | Programmable semiconductor memory device | Tomohiro Nakayama, Seizi Hirayama, Waichiro Fujieda, Arayama Youji, Atsushi Fujii +5 more | 2001-07-17 |
| 6026052 | Programmable semiconductor memory device | Tomohiro Nakayama, Seizi Hirayama, Waichiro Fujieda, Arayama Youji, Atsushi Fujii +5 more | 2000-02-15 |
| 5831933 | Programmable semiconductor memory device | Tomohiro Nakayama, Seizi Hirayama, Waichiro Fujieda, Arayama Youji, Atsushi Fujii +5 more | 1998-11-03 |
| 5781627 | Semiconductor integrated circuit device with copy-preventive function | Nobuo Ikuta, Kouji Ueno, Kouji Shishido, Youji Arayama, Tomohiro Nakayama +4 more | 1998-07-14 |
| 5661694 | Programmable semiconductor memory device | Tomohiro Nakayama, Seizi Hirayama, Waichiro Fujieda, Arayama Youji, Atsushi Fujii +5 more | 1997-08-26 |
| 5600599 | Data signal output circuit and semiconductor memory device including the same | Tomohiro Nakayama, Takanori Shiga, Masakazu Kimura | 1997-02-04 |