Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10013696 | Identification information supervising method, portal information providing apparatus, and IC card | Takashi Kawashima, Hirofumi Hayaashi, Shinya Goishi | 2018-07-03 |
| 4753678 | Sintered hard metal having superior toughness | Masao Maruyama, Atsushi Seki, Masayoshi Yatabe | 1988-06-28 |
| 4274185 | Roll assembly for use in rolling a wire rod | Teruo Mifune, Keiji Noto, Yasuo Otsu | 1981-06-23 |