Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6258411 | Industrial material with fluorine passivated film and process of manufacturing the same | Tadahiro Ohmi, Kazuo Chiba, Yutaka Mikasa, Kenji Ishigaki, Nobuhiro Miki +1 more | 2001-07-10 |
| 6077561 | Metal material formed with fluorocarbon film, process for preparing the material and apparatus made with use of the material | Tadahiro Ohmi, Kazuo Chiba, Hideo Kume, Yutaka Mikasa, Yoshinori Nakagawa +2 more | 2000-06-20 |
| 5837323 | Surface improving method of polypropylene products for plating, joining or coating | Tugio Hashimoto, Ryoji Hirayama | 1998-11-17 |
| 5803956 | Surface treating composition for micro processing | Tadahiro Ohmi, Hirohisa Kikuyama | 1998-09-08 |
| 5725907 | Metal material formed with fluorocarbon film, process for preparing the material and apparatus made with use of the material | Tadahiro Ohmi, Kazuo Chiba, Hideo Kume, Yutaka Mikasa, Yoshinori Nakagawa +2 more | 1998-03-10 |
| 5714407 | Etching agent, electronic device and method of manufacturing the device | Masayuki Miyashita, Hirohisa Kikuyama, Tatsuhiro Yabune, Jun Takano, Hirofumi Fukui +5 more | 1998-02-03 |
| 5605742 | Metal material formed with fluorocarbon film, process for preparing the material and apparatus made with use of the material | Tadahiro Ohmi, Kazuo Chiba, Hideo Kume, Yutaka Mikasa, Yoshinori Nakagawa +2 more | 1997-02-25 |
| 5382423 | Apparatus for recovering calcium fluoride from fluoroetchant | Tadahiro Ohmi, Hiroyuki Harada, Nobuhiro Miki, Toshiro Fukutome, Norio Terasawa +2 more | 1995-01-17 |
| 5362461 | Method for recovering calcium fluoride from fluoroetchant | Tadahiro Ohmi, Hiroyuki Harada, Nobuhiro Miki, Toshiro Fukutome, Norio Terasawa +2 more | 1994-11-08 |
| 5318706 | Method of supplying dilute hydrofluoric acid and apparatus for use in this method for supplying the acid | Tadahiro Ohmi, Nobuhiro Miki, Ryozi Hirayama | 1994-06-07 |
| 5100495 | Dry etching apparatus with diluted anhydrous hydrogen fluoride gas generator | Tadahiro Ohmi, Masahiro Miki, Hirohisa Kikuyama | 1992-03-31 |
| 5073232 | Method of anhydrous hydrogen fluoride etching | Tadahiro Ohmi, Masahiro Miki, Hirohisa Kikuyama | 1991-12-17 |
| 5009963 | Metal material with film passivated by fluorination and apparatus composed of the metal material | Tadahiro Ohmi, Masahiro Miki, Hirohisa Kikuyama | 1991-04-23 |