Issued Patents All Time
Showing 51–73 of 73 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6187648 | Method of forming a device isolation region | Tsukasa Doi, Shigeo Ohnishi, Naoyuki Shinmura | 2001-02-13 |
| 6153460 | Method of fabricating semiconductor memory device | Shigeo Ohnishi, Nobuyuki Takenaka | 2000-11-28 |
| 5795803 | Method for manufacturing a semiconductor device | Yoshiji Takamura, Akio Kawamura | 1998-08-18 |
| 5744394 | Method for fabricating a semiconductor device having copper layer | Tsukasa Doi, Masanori Murakami, Takeo Oku | 1998-04-28 |
| 5734185 | MOS transistor and fabrication process therefor | Kenichi Azuma, Akio Kawamura | 1998-03-31 |
| 5597749 | Method of making nonvolatile memory cell with crystallized floating gate | — | 1997-01-28 |
| 5576995 | Method for rewriting a flash memory | Shinichi Sato | 1996-11-19 |
| 5493140 | Nonvolatile memory cell and method of producing the same | — | 1996-02-20 |
| 5442714 | Design rule checking method and a method of fabricating a phase shift mask | — | 1995-08-15 |
| 5397734 | Method of fabricating a semiconductor device having a triple well structure | Makoto Tanigawa | 1995-03-14 |
| 5389474 | Mask for photolithography | Takashi Fukushima, Hiroki Tabuchi | 1995-02-14 |
| 5362670 | Semiconductor device producing method requiring only two masks for completion of element isolation regions and P- and N-wells | Shigeki Hayashida, Akio Kawamura, Shinichi Sato, Tomohiko Tateyama | 1994-11-08 |
| 5357460 | Semiconductor memory device having two transistors and at least one ferroelectric film capacitor | Tatsushi Yusuki, Shigeo Onishi, Kenichi Tanaka, Keizo Sakiyama | 1994-10-18 |
| 5355006 | Semiconductor memory device with source and drain limited to areas near the gate electrodes | — | 1994-10-11 |
| 5334869 | Semiconductor memory device | Seizo Kakimoto, Naoyuki Shinmura | 1994-08-02 |
| 5330862 | Method for forming resist mask pattern by light exposure having a phase shifter pattern comprising convex forms in the resist | Hiroki Tabuchi, Makoto Tanigawa, Takayuki Taniguchi, Hiroyuki Moriwaki | 1994-07-19 |
| 5314835 | Semiconductor memory device | Seizo Kakimoto, Naoyuki Shinmura | 1994-05-24 |
| 5241205 | Semiconductor memory device | Shin Shimizu, Seizo Kakimoto, Tsukasa Doi | 1993-08-31 |
| 5189501 | Isolator for electrically isolating semiconductor devices in an integrated circuit | Akio Kawamura, Masahiko Urai | 1993-02-23 |
| 5166087 | Method of fabricating semiconductor element having lightly doped drain (LDD) without using sidewalls | Seizo Kakimoto, Sung Tae Ahn | 1992-11-24 |
| 5134588 | Semiconductor memory device | Yasushi Kubota | 1992-07-28 |
| 5116779 | Process for forming semiconductor device isolation regions | — | 1992-05-26 |
| 4999689 | Semiconductor memory | Masahiko Urai, Chiyako Masuichi | 1991-03-12 |