Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11524426 | Master manufacturing method, master, and optical body | Shunichi Kajiya, Hideki Terashima | 2022-12-13 |
| 10974419 | Master manufacturing method, master, and optical body | Shunichi Kajiya, Hideki Terashima | 2021-04-13 |
| 10350791 | Master manufacturing method, master, and optical body | Shunichi Kajiya, Hideki Terashima | 2019-07-16 |
| 8697183 | Method for forming transfer sheet | Kenji Ueda | 2014-04-15 |
| 8435611 | Transfer sheet and method for forming the same | Kenji Ueda | 2013-05-07 |
| 7241519 | Magnetic recording medium with columar magnetic layer | Junichi Tachibana, Hiroshi Mizuno, Takuya Ito | 2007-07-10 |
| 6773745 | Method of producing magnetic recording medium | Junichi Tachibana, Takuya Ito, Yoh Iwasaki | 2004-08-10 |
| 6203884 | Magnetic recording medium | Satoshi Sato, Shinichi Matsumura | 2001-03-20 |
| 5906880 | Magnetic recording medium | Kazunobu Chiba, Kenichi Sato, Yukari Yamada | 1999-05-25 |
| 5835673 | Digital signal recording on a magnetic recording medium having a non-magnetic base and magnetic metal film of certain characteristics | Yukari Yamada, Mayumi Abe, Kazunobu Chiba, Kenichi Sato | 1998-11-10 |
| 5672425 | Magnetic recording medium and a method of fabricating the same | Kenichi Sato, Kazunobu Chiba, Yukari Yamada | 1997-09-30 |
| 5571595 | Magnetic recording medium and method for production thereof | Kazunobu Chiba, Kenichi Sato, Hirofumi Kondo, Yukari Yamada | 1996-11-05 |
| 5512349 | Method and apparatus for magnetic recording digital video signals and magnetic recording medium therefor | Kazunobu Chiba, Kenichi Sato | 1996-04-30 |
| 5347406 | Digital video recording apparatus for recording digital video signals of reduced bit rate on magnetic tape having particular thickness, energy product and surface roughness | Kazunobu Chiba, Kenichi Sato | 1994-09-13 |
| 5253122 | Recording of digital video signals on a magnetic medium having a particular energy product and surface roughness | Kazunobu Chiba, Kenichi Sato | 1993-10-12 |
| 5247397 | Method for magnetically recording digital video signals with specified ranges of the easy axis and the bias magnetic field | Kenichi Sato, Kazunobu Chiba, Toshiharu Kobayashi, Yukari Yamada | 1993-09-21 |