Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10672928 | Metal foil pattern layered body, metal foil layered body, metal foil multi-layer substrate, solar cell module, and method of manufacturing metal foil pattern layered body | Koichi Kumai, Takao Tomono, Takehito Tsukamoto | 2020-06-02 |
| 10651320 | Method of manufacturing a circuit board by punching | Koichi Kumai, Kentaro Kubota, Shigeki Kudo, Minoru Kawasaki | 2020-05-12 |