Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6815605 | Silicon single crystal and wafer doped with gallium and method for producing them | Takao Abe, Teruhiko Hirasawa, Tetsuya Igarashi, Masafumi Yamaguchi | 2004-11-09 |
| 6762021 | Method for diagnosis of crohn's disease | Naoyuki Tsuchiya | 2004-07-13 |
| 6313398 | Ga-doped multi-crytsalline silicon, Ga-doped multi-crystalline silicon wafer and method for producing the same | Toru Yamada, Teruhiko Hirasawa | 2001-11-06 |
| 5720861 | Magnetic recording medium | Hideo Kaneko, Yoshio Tawara | 1998-02-24 |
| 5643650 | Magneto-optical recording medium | Yoshio Tawara, Hideo Kaneko, Yoshiaki Shimizu | 1997-07-01 |
| 5591502 | Magnetic recording medium | Hideo Kaneko, Yoshio Tawara | 1997-01-07 |
| 5582897 | Magnetic recording medium | Hideo Kaneko, Yoshio Tawara | 1996-12-10 |
| 5554303 | Magnetic recording medium preparation | Hideo Kaneko, Yoshio Tawara, Noboru Tamai, Yasuaki Nakazato | 1996-09-10 |
| 5514468 | Magneto-optical recording medium | Hideo Kaneko, Yoshio Tawara, Yoshiaki Shimizu, Tadao Nomura | 1996-05-07 |
| 5151206 | Acicular iron carbide particulate material and process for producing same | Kazuo Okamura, Ikuo Kitamura, Hideki Aomi, Satoshi Koyama, Yoshiyuki Shibuya +1 more | 1992-09-29 |
| 5118573 | Magneto-optical recording medium | Yoshio Tawara, Tadao Nomura, Yoshiaki Shimizu, Yoshihiro Kubota, Meguru Kashida | 1992-06-02 |
| 5026605 | Coated iron carbide fine particles | Ikuo Kitamura, Hideki Aomi, Satoshi Koyama, Kazuo Okamura | 1991-06-25 |
| 4931198 | Magnetic particles composed mainly of FeC and a process for preparing same | Takuya Arase, Shigeo Daimon | 1990-06-05 |
| 4842759 | Acicular process for producing particulate material | Kazuo Okamura, Ikuo Kitamura, Hideki Aomi, Satoshi Koyama, Yoshiyuki Shibuya +1 more | 1989-06-27 |
| 4668414 | Process for producing acicular particles containing an iron carbide | Kazuo Okamura, Ikuo Kitamura, Hideki Aomi, Satoshi Koyama | 1987-05-26 |