Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11127476 | Memory system controlling a threshold voltage in a read operation and method | Kazutaka Takizawa, Yoshihisa Kojima, Masaaki Niijima | 2021-09-21 |
| 10789125 | Memory system and method | Katsuhiko Ueki, Yasuyuki Ozawa | 2020-09-29 |
| 10261857 | Memory system and method for controlling code rate for data to be stored | Katsuhiko Ueki, Yasuyuki Ozawa | 2019-04-16 |
| 10249349 | Control system | Kazutaka Takizawa, Yoshihisa Kojima, Masaaki Niijima | 2019-04-02 |
| 8760983 | Information recording apparatus, information playback apparatus, and formatting method | Kenichiro Suzuki, Kazuhito Shimomura, Yuji Sakai, Kouichi Ogi | 2014-06-24 |
| 8111474 | Eccentricity correction method, signal processing circuit, magnetic storage apparatus and perpendicular magnetic recording medium | Tsugito Maruyama | 2012-02-07 |
| 7787200 | Disk-device correcting system, information managing device, master-disk producing device, and master-disk producing method | Hiroyuki Suzuki, Tomoyoshi Yamada, Masanori Fukushi, Kazuhiko Takaishi, Tsugito Maruyama | 2010-08-31 |
| 7630155 | Eccentricity correction method, signal processing circuit, magnetic storage apparatus and perpendicular magnetic recording medium | Tsugito Maruyama | 2009-12-08 |
| 7602566 | Magnetic transfer master and method of formatting magnetic recording medium | Kazuyuki Ozaki | 2009-10-13 |
| 7532421 | Servo demodulating circuit and method | — | 2009-05-12 |
| 7477464 | Manufacturing method of recording medium, electric/magnetic field copy master and electric/magnetic field copying device | — | 2009-01-13 |
| 7460322 | Magnetic transferring apparatus | Hiroyuki Suzuki, Yutaka Nakamura | 2008-12-02 |
| 7203014 | Preformat method for magnetic recording medium, magnetic recording medium, and magnetic recording and reproducing apparatus | Kazuyuki Ozaki | 2007-04-10 |
| 7203023 | Magnetic recording unit and magnetic recording medium | Kazuyuki Ozaki | 2007-04-10 |
| 7102986 | Optical disk | Mineo Moribe, Koichi Iida, Hiroyuki Takemoto | 2006-09-05 |
| 6865039 | Master medium for magnetic transfer, magnetic transferring and recording method, slave medium for magnetic recording, and method for producing a master medium for magnetic transfer | Shingo Hamaguchi, Kazuyuki Ozaki, Ken Tamanoi, Koji Matsumoto | 2005-03-08 |
| 6757126 | Magnetic recording medium having tracking control area formed adjacent data tracks | Koichi Iida | 2004-06-29 |
| 6646961 | Optical recording medium driving apparatus | Koichi Iida | 2003-11-11 |
| 6356516 | Magneto-optical recording medium and reproducing method for information recorded on the medium | Ken Tamanoi, Keiji Shono, Motonobu Mihara, Koji Matsumoto | 2002-03-12 |
| 6248439 | Magneto-optical recording medium and reproducing method for information recorder on the medium | Ken Tamanoi, Keiji Shono, Motonobu Mihara, Koji Matsumoto | 2001-06-19 |
| 5978327 | Optical recording medium for land-and-groove recording system | Mineo Moribe, Koichi Iida | 1999-11-02 |
| 5747136 | High-density magneto-optic disk and method of manufacturing the same | Keiji Shono, Yasunobu Hashimoto, Ken Tamanoi | 1998-05-05 |
| 5599605 | Magneto-optical recording medium and method for producing the same | Keiji Shono, Ken Tamanoi, Koji Matsumoto | 1997-02-04 |