Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6926794 | Information carrier and process for production thereof | Kyouichi Kohama, Ryuzo Fukao, Wasao Takasugi, Kazuhiko Daido | 2005-08-09 |
| 6482495 | Information carrier and process for production thereof | Kyouichi Kohama, Ryuzo Fukao, Wasao Takasugi, Kazuhiko Daido | 2002-11-19 |
| 6412701 | Flexible IC module and method of its manufacture, and method of manufacturing information carrier comprising flexible IC module | Kyouichi Kohama, Yusuke Hirai, Kaname Tamada, Ryuzo Fukao, Kazuhiko Daido | 2002-07-02 |
| 5880176 | Fluorescent marking composition and fluorescent mark formed by said composition | Takanori Kamoto, Yoshinori Yamamoto | 1999-03-09 |
| 5648160 | Magnetic powder, method for producing the same and use of the same | Mikio Kishimoto, Shinichi Kitahata, Hisao Kanzaki, Noriaki Ohtani | 1997-07-15 |
| 5260132 | Acicular alloy magnetic powder | Tetuya Nakazumi, Mikio Kishimoto, Seigi Kawarai | 1993-11-09 |
| 5252380 | Acicular alloy containing magnetic recording medium | Tetuya Nakazumi, Mikio Kishimoto, Seigi Kawarai | 1993-10-12 |
| 4956220 | Magnetic recording medium | Seiichi Asada, Masahiro Amemiya, Seigi Kawarai, Akira Miyake | 1990-09-11 |
| 4874668 | Magnetic powder and magnetic recording medium comprising the same | Seiichi Asada, Akira Miyake | 1989-10-17 |
| 4456475 | Process for preparing ferromagnetic particles comprising metallic iron | Shigeo Hirai, Masahiro Amemiya | 1984-06-26 |
| 4400337 | Method for production of metal magnetic particles | Yukihiro Hayashi, Shigeo Hirai, Mikio Kishimoto, Katsunori Tashita, Masahiro Amemiya | 1983-08-23 |
| 4390361 | Process for preparing ferromagnetic particles comprising metallic iron | Shigeo Hirai, Masahiro Amemiya | 1983-06-28 |
| 4364988 | Magnetic recording medium | Haruo Andoh, Susumu Kitaoka, Hikaru Ishida, Akira Kato | 1982-12-21 |