Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8226400 | Die for molding honeycomb structure and manufacturing method thereof | Susumu Matsuoka, Seiichi Inoue, Keiji Matsumoto | 2012-07-24 |
| 7670644 | Die for molding honeycomb structure and manufacturing method thereof | Susumu Matsuoka, Seiichi Inoue, Keiji Matsumoto | 2010-03-02 |
| 7132124 | Die for molding honeycomb structure and manufacturing method thereof | Keiji Matsumoto, Shinji Murahata | 2006-11-07 |
| 4861626 | Extrusion die, method of producing the same and method of reclaiming the same | Masahiro Ihara, Kazuo Suzuki, Hideya Maekawa, Kenichi Tanaka | 1989-08-29 |