Issued Patents All Time
Showing 26–33 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6731847 | Optical fiber | Takatoshi Kato, Mitsuomi Hada, Shinjiro Hagihara, Morio Watanabe, Kohei Kobayashi | 2004-05-04 |
| 6614976 | Optical fiber having a large positive dispersion | Takatoshi Kato, Mitsuomi Hada, Shinjiro Hagihara, Morio Watanabe, Kohei Kobayashi | 2003-09-02 |
| 6469575 | Circuit for amplifying and outputting audio signals | Masashi Oki | 2002-10-22 |
| 6337942 | Optical fiber | Takatoshi Kato, Mitsuomi Hada, Shinjiro Hagihara, Morio Watanabe, Kohei Kobayashi | 2002-01-08 |
| 6136410 | Magnetic recording medium | Takao Kudo, Yuichi Sasaki, Taro Ohmura | 2000-10-24 |
| 5773133 | Magnetic recording medium | Yuichi Sasaki, Kazuo Sasaki, Haruo Ishizaki | 1998-06-30 |
| 5416467 | Security system utilizing loosely contained optical fiber | Junichi Ohta, Toshinori Wakami, Ryusuke Miki, Yoshiaki Kanbe | 1995-05-16 |
| 4979900 | Root canal sterilization method | Masaharu Mogi, Naotaka Kagawa, Yasuo Hino | 1990-12-25 |