Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10223405 | Retrieval control method and retrieval server | Masahiko Nagata, Kiichi Yamada | 2019-03-05 |
| 9619516 | Computer-readable recording medium, data extraction method, and data extraction device | Masahiko Nagata, Mitsuhiro Kinomura, Yoshihiro Yasuoka, Kiichi Yamada, Wakana Yamada | 2017-04-11 |
| 5992420 | Cigarette-attached extinguishing device | — | 1999-11-30 |