Issued Patents All Time
Showing 51–68 of 68 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5619509 | Apparatus and methods for testing transmission equipment and a self-test method | Koji Aihara | 1997-04-08 |
| 5574686 | Nonvolatile semiconductor storage system | Yukihiro Watsuji | 1996-11-12 |
| 5556851 | Cinnoline-3-carboxylic acid derivatives | Shigeru Ogawa, Satoshi Yamazaki, Akihiro Tobe | 1996-09-17 |
| 5483485 | Nonvolatile semiconductor system with automatic over erase protection | — | 1996-01-09 |
| 5475249 | Nonvolatile semiconductor device to erase with a varying potential difference | Yukihiro Watsuji | 1995-12-12 |
| 5463587 | Nonvolatile semiconductor system | — | 1995-10-31 |
| 5432738 | Nonvolatile semiconductor storage system | Yukihiro Watsuji | 1995-07-11 |
| 5426611 | Non-volatile semiconductor device | — | 1995-06-20 |
| 5398204 | Nonvolatile semiconductor system | — | 1995-03-14 |
| 5391549 | Cinnoline-3-carboxylic acid derivatives | Shigeru Ogawa, Satoshi Yamazaki, Akihiro Tobe | 1995-02-21 |
| 5369633 | Digital signal transmission system having monitor equipment | Shuji Kimura, Shigeki Yamada, Hiroaki Shirai, Hiroichi Nara, Kazunori Hanaeda | 1994-11-29 |
| 5352685 | Thieno[3,2-b]pyridine derivatives | Shigeru Ogawa, Satoshi Yamazaki, Akihiro Tobe | 1994-10-04 |
| 5069981 | Steel sheet dip-plated with a Zn-Al alloy and process for the manufacture thereof | Hiroshi Oishi | 1991-12-03 |
| 4764618 | Arginine derivatives and pharmaceutically acceptable acid addition salts thereof | Ryoji Kikumoto, Yoshikuni Tamao, Shinji Tonomura, Shosuke Okamoto, Akiko Okunomiya | 1988-08-16 |
| 4602009 | Corticoid derivatives and process for production thereof | Issei Nitta, Kenichiro Nakao, Motoyoshi Miyake, Hiroaki Ueno | 1986-07-22 |
| 4585766 | 6-oxygenated corticoid 17.alpha.-carbonates and process for production thereof | Issei Nitta, Kenichiro Nakao, Motoyoshi Miyake, Junko Takashima | 1986-04-29 |
| 4497878 | Photomask material | Takashi Hatano | 1985-02-05 |
| 4396683 | Photomask blank provided with a transparent electro-conductive layer | Takashi Hatano, Keiko Hioka | 1983-08-02 |