Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5854294 | Process for producing foamed body of polycarbonate resin and foamed body obtained thereby | Yoshihisa Ishihara, Takeshi Aoki, Yasushi Terui, Yoshinori Shimojo, Hiroyuki Gokuraku +1 more | 1998-12-29 |
| 4440703 | Process for producing foamed and molded article of polypropylene resin | Hiroyuki Akiyama, Hideki Kuwabara | 1984-04-03 |
| 4436840 | Process for producing pre-foamed particles of polyolefin resin | Hiroyuki Akiyama, Sumio Shimada, Hideki Kuwabara | 1984-03-13 |
| 4399087 | Process for producing foamed polyolefin articles from aged pre-foamed particles of polyolefin resins | Hiroyuki Akiyama, Susumu Izawa, Hideharu Inada | 1983-08-16 |
| 4379859 | Pre-foamed particles of polypropylene resin and process for production thereof | Sumio Shimada | 1983-04-12 |