Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8470450 | Method of producing two-layered copper-clad laminate, and two-layered copper-clad laminate | — | 2013-06-25 |
| 8449751 | Copper electrolytic solution containing amine compound having specific skeleton and organosulfur compound as additives, and electrolytic copper foil produced using the same | Masashi Kumagai | 2013-05-28 |
| 7777078 | Copper electrolytic solution and electrolytic copper foil produced therewith | Masashi Kumagai | 2010-08-17 |
| 7771835 | Copper electrolytic solution containing quaternary amine compound with specific skeleton and oragno-sulfur compound as additives, and electrolytic copper foil manufactured using the same | Masashi Kumagai | 2010-08-10 |
| 7678257 | Copper electrolytic solution containing quaternary amine compound polymer with specific skeleton and organo-sulfur compound as additives, and electrolytic copper foil manufactured using the same | Masashi Kumagai | 2010-03-16 |
| 7378160 | Copper electrolytic solution containing amine compound having specific skeleton and organosulfur compound as additives, and electrolytic copper foil produced using the same | Masashi Kumagai | 2008-05-27 |
| 7341796 | Copper foil having blackened surface or layer | — | 2008-03-11 |
| 7144491 | Copper electrolytic solution containing organic sulfur compound and quaternary amine compound of specified skeleton as additives and electrolytic copper foil produced therewith | Masashi Kumagai | 2006-12-05 |
| 7005055 | Copper electrolytic solution containing amine compound having specific skeleton and organosulfur compound as additives, and electrolytic copper foil produced using the same | Masashi Kumagai | 2006-02-28 |
| 6791257 | Photoelectric conversion functional element and production method thereof | Kenji Sato, Atsutoshi Arakawa, Akira Noda | 2004-09-14 |
| 6638642 | Copper foil excellent in laser beam drilling performance and production method therefor | Kouji Kitano | 2003-10-28 |
| 4565807 | Medicinal composition containing pirprofen and cyclodextrin and a method of use | Kaneto Uekama, Masashi Tatsumi, Tohru Hibi | 1986-01-21 |