Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4879076 | Process for the production of polyethylene materials | Akira Sano, Seizo Kobayashi, Kazuo Matsuura, Shigeki Yokoyama | 1989-11-07 |
| 4812355 | Finish laminates for high frequency circuits | Shigeki Yokoyama, Takeo Niikawa, Masakatsu Nagase, Tetujiro Kuroishi | 1989-03-14 |