Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6932852 | Method and apparatus for enhanced purification of high-purity metals | Toshiaki Hodozuka | 2005-08-23 |
| 6838045 | Apparatus for metal purification | Shunichi Kimura | 2005-01-04 |
| 6814779 | Process for producing high-purity metals | Shunichi Kimura | 2004-11-09 |
| 6805833 | Apparatus for enhanced purification of high-purity metals | Toshiaki Hodozuka | 2004-10-19 |
| 6627149 | High-purity silver wires for use in recording, acoustic or image transmission applications | Takashi Ohgami, Hiroshi Miura | 2003-09-30 |
| 6533838 | High purity gallium for preparation of compound semiconductor, and method and apparatus for purifying the same | Takeharu Yamamura, Hidekazu Kato, Takashi Ohgami, Kanichi Okuda | 2003-03-18 |
| 6444164 | Apparatus for producing high-purity silver materials | Takashi Ohgami, Hiroshi Miura | 2002-09-03 |
| 6231637 | Process for producing high-purity silver materials | Takashi Ohgami, Hiroshi Miura | 2001-05-15 |
| 6221232 | Electrolytic refining method for gallium and apparatus for use in the method | Kenichi Tayama, Nagayasu Yanata | 2001-04-24 |