Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4961976 | Method of increasing the dynamical strength of glass container | Yutaka Hashimoto, Masanobu Yumoto, Toshihiko Umaba, Yutaka Kamada, Tsutomu Matsubara | 1990-10-09 |
| 4891241 | Method of increasing the dynamical strength of glass container | Yutaka Hashimoto, Masanobu Yumoto, Toshihiko Umaba, Yutaka Kamada, Tsutomu Matsubara | 1990-01-02 |