Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8114528 | Electron beam welded joint excellent in brittle fracture resistance | Tadashi Ishikawa, Ryuichi Honma, Akihiko Kojima, Youichi Tanaka | 2012-02-14 |
| 5826324 | Method of manufacturing flat-type commutator | Toru Abe, Mitsuhiko Yamaguchi, Masakazu Suwa, Shinya Ashimura | 1998-10-27 |
| 5760518 | Flat-type commutator and method for its manufacture | Toru Abe, Mitsuhiko Yamaguchi, Masakazu Suwa, Shinya Ashimura | 1998-06-02 |
| 5147474 | Building construction steel having excellent fire resistance and low yield ratio | Hiroshi Tamehiro, Rikio Chiziiwa, Yoshifumi Sakumoto, Kazuo Funato, Koichiro Keira | 1992-09-15 |
| 4990196 | Process for manufacturing building construction steel having excellent fire resistance and low yield ratio | Hiroshi Tamehiro, Rikio Chiziiwa, Yoshifumi Sakumoto, Kazuo Funato, Koichiro Keira | 1991-02-05 |
| 4238703 | Brush device for a miniature electric motor | — | 1980-12-09 |