Issued Patents All Time
Showing 251–275 of 279 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4884241 | Nonvolatile semiconductor memory device | Sumio Tanaka, Shigeru Atsumi | 1989-11-28 |
| 4882455 | Electronic circuit substrates | Yasuyuki Sato, Hidetoshi Yamauchi | 1989-11-21 |
| 4879689 | Nonvolatile semiconductor memory device | Shigeru Atsumi, Sumio Tanaka, Nobauki Otsuka | 1989-11-07 |
| 4865924 | Magnetic recording medium | Chiaki Mizuno, Toshio Ono, Hiroshi Ogawa | 1989-09-12 |
| 4863793 | Magnetic recording medium | Hiroshi Ogawa, Toshihiko Miura | 1989-09-05 |
| 4860260 | Semiconductor memory device with testing of redundant memory cells | Shigeru Atsumi, Sumio Tanaka | 1989-08-22 |
| 4851289 | Magnetic recording medium | Hiroshi Ogawa, Toshihiko Miura, Nobuo Yamazaki, Hiroaki Araki | 1989-07-25 |
| 4825271 | Nonvolatile semiconductor memory | Sumio Tanaka, Masaki Sato, Shigeru Atsumi, Nobuaki Ohtsuka | 1989-04-25 |
| 4820581 | Magnetic recording medium | Hiroshi Ogawa, Akihiro Matsufuji, Yasuo Tamai | 1989-04-11 |
| 4810908 | Semiconductor logic circuit comprising clock driver and clocked logic circuit | Hirokazu Suzuki, Akinori Tahara | 1989-03-07 |
| 4806417 | Magnetic recording medium | Hiroaki Araki, Kiyomi Ejiri, Hiroshi Ogawa, Chiaki Mizuno | 1989-02-21 |
| 4803131 | Magnetic recording medium | Hiroaki Araki, Kiyomi Ejiri, Hiroshi Ogawa, Chiaki Mizuno | 1989-02-07 |
| 4802137 | Semiconductor memory device | Taizo Okuda, Nobuo Shishikura | 1989-01-31 |
| 4788663 | Nonvolatile semiconductor memory device with a lightly-doped drain structure | Sumio Tanaka, Shigeru Atsumi, Nobuaki Ohtsuka | 1988-11-29 |
| 4784895 | Magnetic recording medium and process for the preparation of the same | Chiaki Mizuno, Hiroshi Ogawa, Minoru Kanazawa, Naoyoshi Chino | 1988-11-15 |
| 4781964 | Magnetic recording medium | Chiaki Mizuno, Yasuo Tamai, Hiroshi Ogawa | 1988-11-01 |
| 4743487 | Magnetic recording medium | Chiaki Mizuno, Hiroshi Ogawa, Noburo Hibino, Yasuo Tamai | 1988-05-10 |
| 4728558 | Magnetic recording medium | Toshio Ono, Yasuo Tamai, Chiaki Mizuno, Hiroshi Ogawa | 1988-03-01 |
| 4728563 | Magnetic recording medium | Hiroshi Ogawa, Chiaki Mizuno, Yasuo Tamai | 1988-03-01 |
| 4724162 | Process for producing magnetic recording medium | Hiroshi Ogawa, Chiaki Mizuno, Toshio Ono, Yasuo Tamai | 1988-02-09 |
| 4710421 | Magnetic recording medium | Toshio Ono, Yasuo Tamai, Chiaki Mizuno, Hiroshi Ogawa | 1987-12-01 |
| 4694429 | Semiconductor memory device | Sumio Tanaka, Shigeru Atsumi, Nobuaki Ohtsuka | 1987-09-15 |
| 4692902 | Semiconductor read only memory device with improved access time | Sumio Tanaka, Shigeru Atsumi | 1987-09-08 |
| 4687710 | Magnetic recording medium | Hiroshi Ogawa, Chiaki Mizuno, Yasuo Tamai | 1987-08-18 |
| 4649081 | Magnetic recording medium | Hiroshi Ogawa, Chiaki Mizuno, Yasuo Tamai | 1987-03-10 |