Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889995 | Apparatus for analysis employing electron | Shinjiro Ueda, Tadashi Otaka | 1989-12-26 |
| RE33129 | Vacuum pump | Mashiro Mase, Takashi Nagaoka, Minoru Taniyama, Makoto Terajima | 1989-12-12 |