Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6568195 | Ammonia refrigerating apparatus | Takashi Kaimai, Hitoshi Takahashi, Goro Yamamoto | 2003-05-27 |
| 6379581 | Lubricated refrigerant composition containing fluorocarbon-type refrigerant, synthetic oil and molybdenumoxysulfide derivatives | Tamiji Kamakura, Noriyoshi Tanaka, Kimiyoshi Namiwa, Yukio Tatsumi | 2002-04-30 |
| 6335311 | Lubricant for refrigerators using ammonia refrigerant | Goro Yamamoto, Takashi Kaimai, Hitoshi Takahashi | 2002-01-01 |
| 6217791 | Refrigerant incorporating a polyoxyalkylene glycol monomethylether | Tamiji Kamakura, Noriyoshi Tanaka, Yuji Baba, Kimiyoshi Namiwa, Yukio Tatsumi | 2001-04-17 |
| 5620950 | Lubricated refrigerant composition containing alicyclic epoxy compounds | Tamiji Kamakura, Noriyoshi Tanaka, Kimiyoshi Namiwa, Yukio Tatsumi | 1997-04-15 |
| 5498356 | Refrigerant composition containing carbodiimide | Tamiji Kamakura, Noriyoshi Tanaka, Kimiyoshi Namiwa, Yukio Tatsumi, Hideo Yokobori | 1996-03-12 |