Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6633534 | Optical disk and optical disk drive | Yoshihiro Tosaki, Akira Matsubara, Tomiharu Hosaka | 2003-10-14 |
| 6551682 | Metal-containing azo compound and optical recording media | Yoshihiro Tosaki, Tomiharu Hosaka, Masatoshi Taniguchi, Noriko Kobayashi, Tomoyuki Hase | 2003-04-22 |
| 6340501 | Device and method for manufacturing an optical recording medium | Toshifumi Kamiyama, Sadayuki Okazaki | 2002-01-22 |
| 6337105 | Method and apparatus for forming thin functional film | Toshibumi Kamiyama, Sadayuki Okazaki | 2002-01-08 |
| 6291031 | Method for preparing optical recording medium and preparation apparatus therefor | Sadayuki Okazaki, Toshibumi Kamiyama | 2001-09-18 |
| 6287660 | Optical recording medium and its substrate | Tomiharu Hosaka, Yoshihiro Tosaki, Yukako Doi, Katsuyuki Takahashi | 2001-09-11 |
| 6177132 | Optical recording medium and method of its manufacture | Sadayuki Okazaki, Toshibumi Kamiyama | 2001-01-23 |
| 5443888 | Magnetic recording medium having a carbon protective layer and partially fluorinated alkyl carboxylic acid lubricant layer | Mikio Murai, Kiyoshi Takahashi, Masaru Odagiri, Yoshiaki Kai, Takashi Suzuki | 1995-08-22 |
| 5182132 | Magnetic recording medium and method for making it | Mikio Murai, Kiyoshi Takahashi, Masaru Odagiri, Yoshiaki Kai, Takashi Suzuki | 1993-01-26 |
| 4745005 | Magnetic recording medium and method for making the same | Ryuji Sugita | 1988-05-17 |
| 4547398 | Method for manufacturing magnetic recording medium | Ryuji Sugita | 1985-10-15 |
| 4399013 | Method of producing a magnetic recording medium | Ryuji Sugita | 1983-08-16 |
| 4385098 | Magnetic recording media | Ryuji Sugita, Hideki Yoshida | 1983-05-24 |
| 4323629 | Metallic thin film magnetic recording medium | Masaru Odagiri, Takashi Fujita, Koichi Shinohara | 1982-04-06 |
| 4239835 | Magnetic recording medium | Yasuo Iijima, Koichi Shinohara, Takashi Fujita, Masaru Odagiri | 1980-12-16 |