Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5660927 | Acicular metal iron fine particles, process for preparing same, magnetic coating composition and magnetic recording medium containing same | Takuya Arase, Yoshiyuki Shibuya, Ikuo Kitamura | 1997-08-26 |
| 5552072 | Coated acicular fine particulate materials, processes for preparing same and use thereof | Takuya Arase, Fumihiro Kamiya, Masayuki Tsuji, Tadashi Ino, Ikuo Kitamura +1 more | 1996-09-03 |
| 5443666 | Acicular fine particles containing metallic iron, iron carbide and carbon, process thereof, and magnetic coating composition and magnetic recording medium containing the same | Ikuo Kiatamura, Takuya Arase, Fumihiro Kamiya | 1995-08-22 |
| 5437805 | Particles containing iron carbide | Takuya Arase, Yoshiyuki Shibuya | 1995-08-01 |
| 5346758 | Magnetic coating composition and magnetic recording medium | Yoshiyuki Shibuya, Kazuo Okamura | 1994-09-13 |
| 5271857 | Process for preparing magnetic coating composition | Tadashi Ino, Nobuhiro Shinka | 1993-12-21 |
| 5205950 | Process for preparing iron carbide fine particles | Yoshiyuki Shibuya, Naoki Miyamoto | 1993-04-27 |
| 5104561 | Process for preparing carbide fine particles | Ikuo Kitamura, Yoshiyuki Shibuya, Takashi Shibanuma | 1992-04-14 |
| 4931198 | Magnetic particles composed mainly of FeC and a process for preparing same | Takuya Arase, Katsushi Tokunaga | 1990-06-05 |
| 4900464 | Particles containing iron carbide | Takuya Arase, Yoshiyuki Shibuya | 1990-02-13 |
| 4457955 | Process for producing magnetizable particles | Kazuo Okamura, Kohji Tamura, Yoshiyuki Shibuya | 1984-07-03 |
| 4339518 | Process of electrostatic printing with fluorinated polymer toner additive | Kazuo Okamura, Nobuyuki Tomihashi | 1982-07-13 |
| 4255299 | Polymer containing perfluoroalkyl group, process for preparing the same and coating composition | Kazuo Okamura | 1981-03-10 |