Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4875284 | Process for producing a package for packing semiconductor devices | Kiyoshi Ogata, Yasunori Ando, Noriaki Matsumura | 1989-10-24 |
| 4866746 | Coated material and X-ray exposure mask | Takahiro Nakahigashi, Yasunori Ando | 1989-09-12 |
| 4861750 | Process for producing superconducting thin film | Shuichi Nogawa | 1989-08-29 |
| 4831212 | Package for packing semiconductor devices and process for producing the same | Kiyoshi Ogata, Yasunori Ando, Noriaki Matsumura | 1989-05-16 |