Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12351922 | Roughening treatment method for stainless steel surface, method for manufacturing roughened stainless steel, and aqueous composition used in said methods | Kazuhiko Ikeda, Hiroshi Matsunaga | 2025-07-08 |
| 11993851 | Aqueous solution for surface treatment, method for producing surface-treated alloy, and composite and method for producing the same | Kazuhiko Ikeda, Shun Fukazawa | 2024-05-28 |
| 11926904 | Aqueous composition, method for roughening stainless steel surface in which same is used, roughened stainless steel, and method for manufacturing same | Kazuhiko Ikeda, Hiroshi Matsunaga, Satoshi Tamai | 2024-03-12 |
| 11821092 | Etchant for selectively etching copper and copper alloy, and method for manufacturing semiconductor substrate using said etchant | Shun Fukazawa, Hiroshi Matsunaga | 2023-11-21 |
| 6945078 | Optical waveguide in the interior of silica glass and method of forming optical waveguide | Takeshi Fukuda, Shimon Ishikawa, Ken Sakuma, Hideyuki Hosoya | 2005-09-20 |
| 6081310 | Reflection-type liquid crystal display having a silver or silver alloy upper electrode layer | Yoko Katsuya, Yutaka Takafuji, Atsushi Iwakiri | 2000-06-27 |