Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11251145 | Semiconductor substrate and manufacturing method therefor | Takuto Watanabe | 2022-02-15 |
| 11114399 | Semiconductor wafer with void suppression and method for producing same | Takuto Watanabe | 2021-09-07 |
| 8568856 | Two-layer flexible substrate | Hironori Kobayashi, Ryu Murakami, Masashi Kumagai | 2013-10-29 |
| 7824534 | Copper electrolytic solution containing as additive compound having specific skeleton, and electrolytic copper foil manufactured therewith | Hironori Kobayashi, Masashi Kumagai | 2010-11-02 |
| 7651783 | Surface treated copper film | Masashi Kumagai, Fumiaki Akase | 2010-01-26 |
| 7432335 | Basic silane coupling agent organic carboxylate composition, method for producing the same, and epoxy resin composition containing the same | Masashi Kumagai, Takashi Ouchi | 2008-10-07 |
| 7109273 | Solid silane coupling agent composition, process for producing the same, and resin composition containing the same | Masashi Kumagai | 2006-09-19 |
| 7094845 | Basic silane coupling agent organic carboxylate composition, method for producing the same, and epoxy resin composition containing the same | Masashi Kumagai, Takashi Ouchi | 2006-08-22 |
| 6921577 | Water-based metal surface treatment agent | Takashi Ouchi, Masashi Kumagai | 2005-07-26 |
| 6916865 | Organic carboxylic acid salt composition, process for preparation thereof and additives for epoxy resins | Masashi Kumagai, Takashi Ouchi | 2005-07-12 |
| 6835241 | Surface treatment for copper foil | Masashi Kumagai, Fumiaki Akase | 2004-12-28 |
| 6710181 | Imidazole/organic monocarboxylic acid salt derivative reaction product, method for producing the same, and surface treatment agent, resin additive and resin composition using the same | Masashi Kumagai | 2004-03-23 |
| 6605356 | Metal surface treatment agent, and metal material coated with same | Takashi Ouchi, Masashi Kumagai | 2003-08-12 |
| 6551711 | Curable episulfide systems having enhanced adhesion to metal | James P. Bell | 2003-04-22 |
| 5258522 | Imidazole-silane compounds and metal surface finishing agent containing the same | Masashi Kumagai, Yukio Ogino | 1993-11-02 |