Issued Patents All Time
Showing 26–31 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5281376 | Method for producing polypropylene resin article having skin material lined with foamed layer | Masahito Matsumoto, Nobuhiro Usui, Shigeyoshi Matubara | 1994-01-25 |
| 5277865 | Gas-assisted injection molding process for producing hollow molded article | Masahito Matsumoto, Hiromu Fujita, Yuji Kamiji, Hiromasa Nakatsuka | 1994-01-11 |
| 5275776 | Method for producing molded article of fiber-reinforced thermoplastic resin | Masahito Matsumoto, Nobuhiro Usui, Shigeyoshi Matubara | 1994-01-04 |
| 5252269 | Method for molding polypropylene resin | Masahito Matsumoto, Nobuhiro Usui, Shigeyoshi Matubara | 1993-10-12 |
| 5178708 | Method for producing multi-layer molded article | Masahito Matsumoto, Nobuhiro Usui, Shigeyoshi Matubara | 1993-01-12 |
| 5130075 | Method for press molding thermoplastic resin | Masahito Matsumoto, Nobuhiro Usui, Shigeyoshi Matsubara | 1992-07-14 |