Issued Patents All Time
Showing 25 most recent of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8897061 | MTJ cell for an MRAM device and a manufacturing method thereof | — | 2014-11-25 |
| 7808813 | Magnetic memory cell reading apparatus | Yuji Kakinuma | 2010-10-05 |
| 7522450 | Magnetic storage cell, magnetic memory device and magnetic memory device manufacturing method | Keiji Koga, Yuji Kakinuma, Susumu Haratani | 2009-04-21 |
| 7352615 | Magnetic memory device | Yuji Kakinuma | 2008-04-01 |
| 7349244 | Magnetic memory device | Yuji Kakinuma | 2008-03-25 |
| 7342822 | Magnetic memory device, write current driver circuit and write current driving method | Yuji Kakinuma, Keiji Koga, Shigekazu Sumita | 2008-03-11 |
| 7295460 | Magnetic memory cell, magnetic memory device, and method of manufacturing magnetic memory device | Keiji Koga, Yuji Kakinuma | 2007-11-13 |
| 7277320 | Magnetic memory device, sense amplifier circuit and method of reading from magnetic memory device | Yuji Kakinuma, Keiji Koga, Shigekazu Sumita | 2007-10-02 |
| 7230843 | Magnetic memory device and writing method of the same | Yuji Kakinuma, Keiji Koga, Shigekazu Sumita | 2007-06-12 |
| 7227771 | Magnetoresistive effect element and magnetic memory device | Keiji Koga, Yuji Kakinuma | 2007-06-05 |
| 7209380 | Magnetic memory device and method of reading the same | Yuji Kakinuma, Keiji Koga, Shigekazu Sumita | 2007-04-24 |
| 7016221 | Magnetoresistive effect element, magnetic memory device and method of fabricating the same | Keiji Koga, Yuji Kakinuma | 2006-03-21 |
| 6996001 | Magnetic memory device, write current drive circuit, and write current drive method | Yuji Kakinuma, Keiji Koga | 2006-02-07 |
| 6930911 | Magnetic memory device, method for writing on the same and method for reading from the same | Yuji Kakinuma, Keiji Koga | 2005-08-16 |
| 6515835 | Precise positioning actuator actuator for precisely positioning thin-film magnetic head element and head gimbal assembly with the actuator | Takashi Honda | 2003-02-04 |
| 6137652 | Thin film magnetic head with separated yoke and pole tips | Koichi Terunuma | 2000-10-24 |
| 5978176 | Magnetic head for a magnetic disk having a slider with indented portions for providing heat dissipation | Noboru Yamanaka, Izumi Nomura | 1999-11-02 |
| 5847899 | Magnetic disk recording and reproducing apparatus | Kazumasa Fukuda, Masanori Sakai, Mikio Matsuzaki | 1998-12-08 |
| 5545988 | Waveform signal processor with selective sampling | Masanori Sakai, Katsuhiko Tomita, Kazuo Suzuki, Seiji Fukuda, Kouichi Hatakeyama | 1996-08-13 |
| 5268799 | Magnetic recording and reproducing apparatus | Kazumasa Fukuda, Masanori Sakai | 1993-12-07 |
| 5094898 | Magnetic recording medium comprising a glass substrate of controlled surface roughness and a magnetic thin film layer of gamma Fe.sub.2 O.sub.3 | Haruyuki Morita, Yasufumi Uno | 1992-03-10 |
| 5080948 | Magnetic recording/reproducing system comprising a glass substrate thin film magnetic disk and a flying magnetic head with defined spacing and surface roughness | Haruyuki Morita, Yasufumi Uno | 1992-01-14 |
| 5072320 | Magnetic recording and reproducing apparatus having improved durability | Kazumasa Fukuda, Masanori Sakai | 1991-12-10 |
| 4939604 | Magnetic recording and reproducing apparatus and a magnetic head used for the apparatus | Kazumasa Fukuda, Masanori Sakai, Mikio Matsuzaki | 1990-07-03 |
| 4928195 | Improved floating magnetic head for high density recording | Yoshiaki Ito, Mikio Matsuzaki | 1990-05-22 |