| 6178294 |
Photographing unit for a microscope |
Hitoshi Sakano, Chikaya Iko, Tatsuro Otaki |
2001-01-23 |
| 6091911 |
Microscope photographing unit with brightness control for observation optical system |
Hitoshi Sakano, Chikaya Iko, Tatsuro Otaki |
2000-07-18 |
| 5880455 |
Focal position detection apparatus having a light reflecting member with plural reflecting films |
Tatsuro Otaki |
1999-03-09 |
| 5530237 |
Apparatus for focusing on transparent objects |
Manabu Sato |
1996-06-25 |
| 5396063 |
Objective replacing apparatus having objective position, displacement and address detecting means and microscope using it |
Toshinobu Ito |
1995-03-07 |
| 4402739 |
Method of operation of a top-and-bottom blown converter |
Kyoji Nakanishi, Kenichiro Suzuki, Michio Tanaka, Hisashi Ohmori, Tsutomu Nozaki |
1983-09-06 |
| 4278124 |
Method of producing hollow steel ingot and apparatus therefor |
Kazuo Aso, Takesaburo Nishioka, Takemi Yamamoto, Naomichi Miyai |
1981-07-14 |