Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5737927 | Cryogenic cooling apparatus and cryogenic cooling method for cooling object to very low temperatures | Masahiko Takahashi, Yasumi Ohtani, Rohana Chandratilleke, Hideki Nakagome, Toru Kuriyama | 1998-04-14 |
| 5711157 | Cooling system having a plurality of cooling stages in which refrigerant-filled chamber type refrigerators are used | Yasumi Ohtani, Masahiko Takahashi, Rohana Chandratilleke, Toru Kuriyama, Hideki Nakagome +3 more | 1998-01-27 |
| 5412952 | Pulse tube refrigerator | Yasumi Ohtani, Toru Kuriyama, Hideki Nakagome, Yoichi Matsubara | 1995-05-09 |
| 5335505 | Pulse tube refrigerator | Yasumi Ohtani, Toru Kuriyama, Hideki Nakagome, Yoichi Matsubara | 1994-08-09 |
| 4393016 | Process for producing plate-like polystyrene resin foam | Hiroyuki Akiyama, Nobuyoshi Shimoyashiki, Yoshiaki Momose, Fusao Imai | 1983-07-12 |
| 4324748 | Process and apparatus for extruding plastic foams through a fluorocarbon lined die shaping means having extended wear characteristics | Toru Yamamoto | 1982-04-13 |
| 4260572 | Process for producing foamed polystyrene boards | Hiroyuki Akiyama, Nobuyoshi Shimoyashiki, Toru Yamamoto | 1981-04-07 |