Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8394558 | Reflection type photomask blank, manufacturing method thereof, reflection type photomask, and manufacturing method of semiconductor device | Tadashi Matsuo, Koichiro Kanayama | 2013-03-12 |
| 5044494 | Packaging means for a plurality of pairs of throwaway three-dimensional hand coverings | — | 1991-09-03 |