Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885020 | Method of manufacturing glass fiber | Yasuo Mizuno, Masaki Ikeda | 1989-12-05 |
| 4861657 | Article having insulation abrasion coated layer | Masaki Ikeda, Yoshihiro Watanabe, Masahiro Hiraka | 1989-08-29 |
| 4855261 | Sealing glass | Yasuo Mizuno, Masaki Ikeda, Shinji Kurio | 1989-08-08 |
| 4814145 | Apparatus for carbonizing and activating fiber materials | Akihiko Yoshida, Ichiro Tanahashi, Yasuhiro Takeuchi | 1989-03-21 |