Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9261493 | Method of quantitative analysis of hexavalent chromium in chromate coating and method for controlling hazardous element in encapsulating resin of resin encapsulation semiconductor device | Tetsuya Tachibe, Mitsuhiro Oki | 2016-02-16 |
| 8628600 | Method for extracting hexavalent chromium in a polymer material | Miho Muramatsu, Mitsuhiro Oki | 2014-01-14 |
| 8223917 | Method of quantitative analysis of hexavalent chromium in chromate coating and method for controlling hazardous element in encapsulating resin of resin encapsulation semiconductor device | Mitsuhiro Oki | 2012-07-17 |
| 8114672 | Method for analyzing antimony contained in glass | Sayaka MORIMOTO, Mitsuhiro Oki | 2012-02-14 |
| 7727767 | Method for quantitative analysis of metal element contained in resin material | — | 2010-06-01 |
| 6077451 | Method and apparatus for etching of silicon materials | Yuji Yamada, Masaru Hayashi, Hideki Matsunaga, Akira Okada | 2000-06-20 |