Issued Patents All Time
Showing 26–39 of 39 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6128129 | Automatic focusing apparatus for microscope | — | 2000-10-03 |
| 6052223 | Microscope with chromatic aberration correcting function | Kenji Karaki, Kazuo Kajitani | 2000-04-18 |
| 6043475 | Focal point adjustment apparatus and method applied to microscopes | Masakazu Shimada, Takashi Nagano, Nobuyuki Nagasawa, Hideaki Endo, Jitsunari Kojima +2 more | 2000-03-28 |
| 5933513 | Image processing system for expanding focal depth of optical machine | Shinichi Hayashi | 1999-08-03 |
| 5866671 | Molded parts used for photographic sensitive materials and resin compositions used to make thereof | Kenichi Shinohara, Robert J. Kassal, Osamu Suzuki | 1999-02-02 |
| 5053289 | Magnetic recording medium | Yasuo Nishikawa, Kunihiko Sano | 1991-10-01 |
| 4922675 | Abrasive tape | Masami Sato, Masaaki Fujiyama, Takashi Iwasaki, Masami Suzuki, Hideaki Kosha | 1990-05-08 |
| 4880693 | Magnetic recording medium | Katsumi Ryoke, Masatoshi Takahashi, Akihiro Hashimoto, Tsutomu Okita | 1989-11-14 |
| 4825181 | Switching device | Suketoshi Nagano, Munehiro Ichikawa | 1989-04-25 |
| 4696859 | Magnetic recording medium | Takahito Miyoshi, Nobuo Aoki, Akira Kasuga, Toshimitu Okutu, Masaaki Fujiyama +1 more | 1987-09-29 |
| 4693929 | Magnetic recording medium | Katsumi Ryoke, Masatoshi Takahashi, Yasuo Nishikawa, Eiichi Tadokoro | 1987-09-15 |
| 4587170 | Magnetic recording medium | Kazuko Hanai, Toshihisa Ito | 1986-05-06 |
| 4539257 | Magnetic recording medium having improved running properties | Katsumi Ryoke, Kenichi Masuyama, Norio Nasu, Eiichi Tadokoro | 1985-09-03 |
| 4497864 | Magnetic recording medium | Katsumi Ryoke, Nobutaka Yamaguchi, Eiichi Tadokoro | 1985-02-05 |