Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6411831 | Portable telephone | Masanori Oshimi | 2002-06-25 |
| 6124699 | Battery charger device | Naomasa Suzuki, Kazutoshi Ichinose | 2000-09-26 |
| 5347208 | Charging equipment for charging a portable apparatus and separable cell pack | — | 1994-09-13 |
| 5075180 | Magnetic recording medium and method for preparing the same | Tadashi Ishikuro, Masaaki Fujiyama | 1991-12-24 |
| 5036629 | Method for preparing a magnetic recording medium | Tadashi Ishikuro, Masaaki Fujiyama | 1991-08-06 |
| 5009929 | Process for the preparation of magnetic recording medium | Masaaki Fujiyama, Keisuke Yamada | 1991-04-23 |
| 5000983 | Process for the preparation of magnetic recording medium | Masaaki Fujiyama, Keisuke Yamada, Hiroshi Kato, Naoki Sakai | 1991-03-19 |
| 4888212 | Process for the preparation of magnetic recording medium | Masaaki Fujiyama, Shigeo Komine, Keisuke Yamada | 1989-12-19 |
| 4663217 | Magnetic recording medium | Nobutaka Yamaguchi, Masahiro Utsumi, Norio Nasu, Eiichi Tadokoro | 1987-05-05 |
| 4647501 | Magnetic recording medium | Nobutaka Yamaguchi, Norio Nasu, Katsumi Ryoke, Toshimitu Okutu, Kenichi Masuyama | 1987-03-03 |
| 4626469 | Magnetic recording material | Nobutaka Yamaguchi, Kenichi Masuyama, Masaaki Fujiyama | 1986-12-02 |
| 4601946 | Magnetic recording medium | Nobutaka Yamaguchi, Fumiaki Tsukuda, Masaaki Fujiyama, Eiichi Tadokoro | 1986-07-22 |
| 4582754 | Magnetic recording medium | Katsumi Ryoke, Masaaki Fujiyama, Eiichi Tadokoro | 1986-04-15 |
| 4552799 | Magnetic recording medium | Katsumi Ryoke, Masaaki Fujiyama, Eiichi Tadokoro | 1985-11-12 |
| 4552798 | Magnetic recording medium | Katsumi Ryoke, Yasuhiro Abe, Eiichi Tadokoro | 1985-11-12 |
| 4551386 | Magnetic recording materials | Nobutaka Yamaguchi, Masahiro Utsumi, Toshimitu Okutu, Kenichi Masuyama, Eiichi Tadokoro | 1985-11-05 |
| 4544601 | Magnetic recording medium | Nobutaka Yamaguchi, Toshimitu Okutu, Takahito Miyoshi, Eiichi Tadokoro, Masaaki Fujiyama | 1985-10-01 |