Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7785654 | Method of producing cosmetics-impregnated sheet | Takeshi Nakajima, Hidehiko Nakayama, Masayasu Sato, Takashi Kawai, Mitsuo Shimizu | 2010-08-31 |
| 6635338 | Magnetic recording tape and method for manufacturing the same | — | 2003-10-21 |
| 5741577 | Magnetic recording medium having a lubricant layer with a specified structure of a specified perfluoropolyether lubricant | Yuzo Yamamoto, Shinji Yamada | 1998-04-21 |
| 5510181 | Lubricant and magnetic recording medium using the same | — | 1996-04-23 |
| 4714719 | Catalyst for preparation of polyurethane and process for the preparation | Harumasa Yamasaki, Masayoshi Morii, Yukinaga Yokota, Akira Mamada | 1987-12-22 |