Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8481182 | Magnetic recording medium for thermally assisted magnetic recording | Fumihiro Tawa, Shinya Hasegawa | 2013-07-09 |
| 8180612 | Electromagnetic field simulator and electromagnetic field simulating program product | — | 2012-05-15 |
| 8014235 | Optical output device, magnetic storage medium drive unit, and head slider | Fumihiro Tawa, Shinya Hasegawa | 2011-09-06 |
| 7987076 | Electromagnetic field simulator and electromagnetic field simulation program storage medium | — | 2011-07-26 |
| 7593836 | Electromagnetic field simulator and electromagnetic field simulation program | — | 2009-09-22 |
| 7113459 | Optical device, information recording/reproducing apparatus using the optical device | Shinya Hasegawa | 2006-09-26 |
| 7065009 | Optical information storage apparatus and optical device including a beam splitting surface with a convex surface side and a concave surface side | Shinya Hasegawa, Nobuhide Aoyama | 2006-06-20 |
| 6611488 | Optical head, optical part, and optical memory apparatus having controlled optical intensity | Shinya Hasegawa | 2003-08-26 |
| 6563781 | Optical information storage device and optical head | Shinya Hasegawa, Nobuhide Aoyama | 2003-05-13 |
| 6552966 | Recording head for optical recording system | Shinya Hasegawa, Fumihiro Tawa, Nobuhide Aoyama | 2003-04-22 |
| 6407967 | Optical apparatus, tracking apparatus and optical disk apparatus | Shin Hasegawa | 2002-06-18 |