Issued Patents All Time
Showing 1–25 of 53 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10233516 | Method for recovering heavy rare earth element | Yu Miyamoto, Hiroyuki Hoshi | 2019-03-19 |
| 10081040 | Method for recovering rare earth element | Yu Miyamoto, Hiroyuki Hoshi | 2018-09-25 |
| 9657367 | Method for producing R-Fe-B based permanent magnet alloy recycled material having removed carbon | Katsuyoshi Furusawa | 2017-05-23 |
| 9435009 | Method and system for separating rare earth elements | Hiroki Yamamoto, Katsuyoshi Furusawa, Hiroyuki Hoshi, Motoyuki Miyata, Hajime Murakami | 2016-09-06 |
| 9322082 | Method for recovering rare earth element | Hiroyuki Hoshi | 2016-04-26 |
| 9275794 | Corrosion-resistant magnet and method for producing the same | Koshi Yoshimura, Yoshimi Tochishita, Masanao Kamachi, Nobuhiro Misumi | 2016-03-01 |
| 9175376 | Method for producing surface-modified rare earth metal-based sintered magnet and surface-modified rare earth metal-based sintered magnet | Mahoro Fujihara, Koshi Yoshimura | 2015-11-03 |
| 9070412 | Channel bitword processor, PRML decoder, and optical information recording/reproducing device | — | 2015-06-30 |
| 8958278 | Optical information reproduction apparatus using homodyne phase diversity detection with improved SNR | Takahiro Kurokawa | 2015-02-17 |
| 8958277 | Information recording method, information reading method, and optical disc device | Tatsuro Ide | 2015-02-17 |
| 8804476 | Optical information recording medium, recording and reproduction method, and recording and reproduction device | — | 2014-08-12 |
| 8705328 | Read signal evaluation method, information recording and reading method, and information recording and reading apparatus | — | 2014-04-22 |
| 8641832 | Method for producing rare earth metal-based permanent magnet | Shinichiro Sakashita | 2014-02-04 |
| 8588048 | Optical information recording medium, optical information recording and reproducing device, and recording method | — | 2013-11-19 |
| 8379497 | Optical disk apparatus | — | 2013-02-19 |
| 8243573 | High-speed optical disk drive | — | 2012-08-14 |
| 8163106 | R-Fe-B based sintered magnet having on the surface thereof vapor deposited film of aluminum or alloy thereof, and method for producing the same | Koshi Yoshimura, Yoshimi Tochishita, Masanao Kamachi, Nobuhiro Misumi | 2012-04-24 |
| 8089845 | Offset compensator and optical disc drive using the same | — | 2012-01-03 |
| 8085633 | Optical disc drive | — | 2011-12-27 |
| 8045431 | Signal conversion module and optical disc apparatus using the same | — | 2011-10-25 |
| 7969838 | Optical disk apparatus | — | 2011-06-28 |
| 7945002 | Information read device and read signal processing circuit | Hiroyuki Minemura | 2011-05-17 |
| 7889607 | Optical disk device and integrated circuit used therein | Hiroyuki Minemura | 2011-02-15 |
| 7852722 | Optical disk apparatus and playback signal processing method | Hiroyuki Minemura | 2010-12-14 |
| 7852729 | Optical disc apparatus with adjustable constraint length PRML | Hiroyuki Minemura | 2010-12-14 |