Issued Patents All Time
Showing 26–33 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7993543 | Refrigerating machine oil for carbon dioxide refrigerant | Ken Sawada, Yuji Shimomura, Katsuya Takigawa, Jiro Hashimoto, Masataka Negishi | 2011-08-09 |
| 7959824 | Refrigerating machine oil composition | Katsuya Takigawa | 2011-06-14 |
| 7867957 | Lubricating oil composition | Shigeki Matsui | 2011-01-11 |
| 7838709 | Lubricating base oil and lubricating oil composition | Shigeki Matsui, Akira Yaguchi, Shinichi Shirahama | 2010-11-23 |
| 6221274 | Lubricant compositions for refrigerating machine employing HFC-32, HFC-125 or HFC-134A | Yasushi Akahori, Noboru Masuda, Takeshi Izawa, Masayoshi Muraki, Tomohiro Magome | 2001-04-24 |
| 5882815 | Spiral rolled electrode assembly having a serrated center pin | — | 1999-03-16 |
| 5714282 | Coating paste and a nonaqueous electrode for a secondary battery | — | 1998-02-03 |
| 5342533 | Refrigerator oil composition | Yasuo Kondo, Yukiharu Beppu | 1994-08-30 |