Issued Patents All Time
Showing 26–50 of 59 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5506164 | Method of manufacturing a semiconductor device having a cylindrical capacitor | Mitsuya Kinoshita, Tatsuo Okamoto, Atsushi Hachisuka | 1996-04-09 |
| 5489791 | Field effect transistor having impurity regions of different depths and manufacturing method thereof | Makoto Ohi, Natsuo Ajika, Atsushi Hachisuka, Tomonori Okudaira | 1996-02-06 |
| 5486712 | DRAM having peripheral circuitry in which source-drain interconnection contact of a MOS transistor is made small by utilizing a pad layer and manufacturing method thereof | — | 1996-01-23 |
| 5480826 | Method of manufacturing semiconductor device having a capacitor | Kazuyuki Sugahara | 1996-01-02 |
| 5434439 | Dynamic random access memory having stacked type capacitor and manufacturing method therefor | Natsuo Ajika, Atsushi Hachisuka | 1995-07-18 |
| 5428239 | Semiconductor device having retrograde well and diffusion-type well | Yoshinori Okumura, Tomonori Okudaira | 1995-06-27 |
| 5408114 | Semiconductor memory device having cylindrical capacitor and manufacturing method thereof | Mitsuya Kinoshita, Tatsuo Okamoto, Atsushi Hachisuka | 1995-04-18 |
| 5404042 | Semiconductor memory device having a plurality of well regions of different conductivities | Yoshinori Okumura, Tomonori Okudaira | 1995-04-04 |
| 5381365 | Dynamic random access memory having stacked type capacitor and manufacturing method therefor | Natsuo Ajika, Atsushi Hachisuka | 1995-01-10 |
| 5378643 | Electrically programmable non-volatile semiconductor memory device and manufacturing method thereof | Natsuo Ajika | 1995-01-03 |
| 5364811 | Method of manufacturing a semiconductor memory device with multiple device forming regions | Natsuo Ajika, Kaoru Motonami, Atsushi Hachisuka, Tomonori Okudaira | 1994-11-15 |
| 5338699 | Method of making a semiconductor integrated device having gate sidewall structure | Makoto Ohi, Natsuo Ajika, Atsushi Hachisuka, Yasushi Matsui | 1994-08-16 |
| 5315140 | Semiconductor device having a polysilicon capacitor with large grain diameter | Kazuyuki Sugahara | 1994-05-24 |
| 5276344 | Field effect transistor having impurity regions of different depths and manufacturing method thereof | Makoto Ohi, Natsuo Ajika, Atsushi Hachisuka, Tomonori Okudaira | 1994-01-04 |
| 5233212 | Semiconductor device having gate electrode spacing dependent upon gate side wall insulating dimension | Makoto Ohi, Natsuo Ajika, Atsushi Hachisuka, Yasushi Matsui | 1993-08-03 |
| 5231041 | Manufacturing method of an electrically programmable non-volatile memory device having the floating gate extending over the control gate | Yoshinori Okumura, Hideki Genjo, Ikuo Ogoh, Kohjiroh Yuzuriha, Yuichi Nakashima | 1993-07-27 |
| 5229314 | Method of manufacturing field effect transistor having a multilayer interconnection layer therein with tapered sidewall insulation | Tomonori Okudaira, Makoto Ohi, Kaoru Motonami, Yasushi Matsui | 1993-07-20 |
| 5218219 | Semiconductor memory device having a peripheral wall at the boundary region of a memory cell array region and a peripheral circuit region | Natsuo Ajika, Kaoru Motonami, Atsushi Hachisuka, Tomonori Okudaira | 1993-06-08 |
| 5194925 | Electrically programmable non-volatie semiconductor memory device | Natsuo Ajika | 1993-03-16 |
| 5162262 | Multi-layered interconnection structure for a semiconductor device and manufactured method thereof | Natsuo Ajika | 1992-11-10 |
| 5157469 | Field effect transistor having a multilayer interconnection layer therein with tapered sidewall insulators | Tomonori Okudaira, Makoto Ohi, Kaoru Motonami, Yasushi Matsui | 1992-10-20 |
| 5141891 | MIS-type semiconductor device of LDD structure and manufacturing method thereof | Natsuo Ajika | 1992-08-25 |
| 5101250 | Electrically programmable non-volatile memory device and manufacturing method thereof | Yoshinori Okumura, Hideki Genjo, Ikuo Ogoh, Kohjiroh Yuzuriha, Yuichi Nakashima | 1992-03-31 |
| 5100818 | Non-volatile semiconductor memory device and method of manufacturing the same | Natsuo Ajika | 1992-03-31 |
| 5093277 | Method of device isolation using polysilicon pad LOCOS method | Natsuo Ajika | 1992-03-03 |