Issued Patents All Time
Showing 26–46 of 46 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7464390 | Optical information recording medium, and recording and reproducing apparatus of the same | Hiroyuki Iwasa, Masaru Shinkai | 2008-12-09 |
| 7439007 | Phase change information recording medium having multiple layers and recording and playback method for the medium | Hiroyuki Iwasa, Masaru Shinkai | 2008-10-21 |
| 7372800 | Optical recording medium and optical recording process using the same | Takuro Sekiya | 2008-05-13 |
| 7288224 | Method of producing a sputtering target | Yukio Ide, Hiroko Iwasaki, Yoshiyuki Kageyama, Yujiro Kaneko, Katsuyuki Yamada +2 more | 2007-10-30 |
| 7260053 | Optical recording medium, process for manufacturing the same, sputtering target for manufacturing the same, and optical recording process using the same | Makoto Harigaya, Kazunori Ito, Hiroko Tashiro, Miku Mizutani, Hiroyuki Iwasa +1 more | 2007-08-21 |
| 7241549 | Information recording medium | — | 2007-07-10 |
| 7048983 | Phase-change optical information recording medium and information recording and reading method using the recording medium | — | 2006-05-23 |
| 7042830 | Phase-change optical information recording medium, and optical information recording and reproducing apparatus and method for the same | Hiroyuki Iwasa, Takao Yamada, Toshio Matsushita, Yasuo Kanbara, Shigeki Okauchi | 2006-05-09 |
| 7012878 | Optical recording medium and optical recording process using the same | Takuro Sekiya | 2006-03-14 |
| 7005172 | Optical information recording medium and method for producing the same | Masaru Shinkai, Hiroyuki Iwasa | 2006-02-28 |
| 6801240 | Information recording with effective pulse control scheme | Michiharu Abe, Kenya Yokoi | 2004-10-05 |
| 6790504 | Phase-change optical information recording medium and information recording and reading method using the recording medium | — | 2004-09-14 |
| 6741545 | Phase-change medium usable in phase-difference tracking | Hajime Yuzurihara, Hiroshi Deguchi, Hiroko Tashiro | 2004-05-25 |
| 6652948 | Phase-change optical information recording medium and information recording and reading method using the recording medium | — | 2003-11-25 |
| 6652806 | Method of producing a sputtering target | Yukio Ide, Hiroko Iwasaki, Yoshiyuki Kageyama, Yujiro Kaneko, Katsuyuki Yamada +2 more | 2003-11-25 |
| 6426936 | Phase-change medium usable in phase-difference tracking | Hajime Yuzurihara, Hiroshi Deguchi, Hiroko Tashiro | 2002-07-30 |
| 6319368 | Sputtering target, method of producing the target, optical recording medium fabricated by using the sputtering target, and method of forming recording layer for the optical recording medium | Yukio Ide, Hiroko Iwasaki, Yoshiyuki Kageyama, Yujiro Kaneko, Katsuyuki Yamada +2 more | 2001-11-20 |
| 6221557 | Optical information recording medium | Makoto Harigaya, Yoshiyuki Kageyama, Hiroko Iwasaki | 2001-04-24 |
| 6096398 | Phase-change optical recording medium | Hajime Yuzurihara, Hiroshi Deguchi, Takashi Shibaguchi, Makoto Harigaya, Mikio Kinoshita +2 more | 2000-08-01 |
| 6018510 | Phase change recording medium for allowing a tracking servo control based on a differential phase detection tracking method | Michiharu Abe, Masahiko Nakayama | 2000-01-25 |
| 5736657 | Sputtering target | Yukio Ide, Hiroko Iwasaki, Yoshiyuki Kageyama, Yujiro Kaneko, Katsuyuki Yamada +2 more | 1998-04-07 |