Issued Patents All Time
Showing 51–75 of 85 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7718083 | Refrigerator oil composition | — | 2010-05-18 |
| 7531488 | Lubricating oil for refrigerator with compressor | Yasuhiro Kawaguchi, Nobuaki Shimizu, Hiroshi Nagakawa | 2009-05-12 |
| 7517839 | Lubricating oil for refrigerator with compressor | Yasuhiro Kawaguchi, Nobuaki Shimizu, Hiroshi Nagakawa | 2009-04-14 |
| 6475405 | Lubricating oil for refrigerator with compressor | Yasuhiro Kawaguchi, Nobuaki Shimizu, Hiroshi Nagakawa | 2002-11-05 |
| 6458288 | Lubricating oil for refrigerator with compressor | Yasuhiro Kawaguchi, Nobuaki Shimizu, Hiroshi Nagakawa | 2002-10-01 |
| 6322719 | Refrigerating oil composition | Toshinori Tazaki, Shuichi Sakanoue | 2001-11-27 |
| 6316395 | Lubricating oil for flon refrigerant | — | 2001-11-13 |
| 6277327 | Method for the anticorrosive treatment of waste plastics treating equipment | Masanori Tabata, Naohiko Ukawa, Kazuto Kobayashi, Shigeo Hasegawa, Wataru Matsubara +3 more | 2001-08-21 |
| 6261474 | Lubricating oil for compression-type refrigerators containing pentafluoroethane and a polyvinyl ether | Tatsuya Egawa, Hirotaka Yamasaki, Kenji Mogami, Satoshi Nagao, Toyokazu Handa | 2001-07-17 |
| 6193906 | Refrigerating oil composition containing a polyether additive | Toshinori Tazaki, Shuichi Sakanoue | 2001-02-27 |
| 6191082 | Lubricating oil for flon refrigerant | — | 2001-02-20 |
| 6165360 | Method and device for dehydrating heavy oils | Hiroshi Suzumura, Isao Matsuura, Masami Fukunaga, Masaki Iijima | 2000-12-26 |
| 6074573 | Refrigerator oil composition | — | 2000-06-13 |
| 6066604 | Vacuum pump oil | — | 2000-05-23 |
| 6008169 | Refrigerator oil composition comprising saturated hydroxy fatty acids and derivatives thereof | — | 1999-12-28 |
| 5997761 | Refrigerating machine oil composition | — | 1999-12-07 |
| 5989436 | Method and device for dehydrating heavy oils | Hiroshi Suzumura, Isao Matsuura, Masami Fukunaga, Masaki Iijima | 1999-11-23 |
| 5976376 | Sewage treatment process | Yasuyuki Ogushi, Naohiko Ukawa, Susumu Okino, Masao Hino, Takashi Haruki +3 more | 1999-11-02 |
| 5858266 | Refrigerating machine oil composition | — | 1999-01-12 |
| 5801132 | Refrigerator oil composition | Tsuneo Konishi, Katsumi Ichitani | 1998-09-01 |
| 5536881 | Lubricating oil for compression-type refrigerators and polyoxyalkylene glycol derivatives | Yasuhiro Kawaguchi, Nobuaki Shimizu | 1996-07-16 |
| 5520833 | Method for lubricating compression-type refrigerating cycle | — | 1996-05-28 |
| 5500086 | Method for producing pulp from green algae | Masayasu Sakai, Touru Seto, Michio Hada, Toshiaki Kinomoto | 1996-03-19 |
| 5454963 | Refrigerating machine oil composition containing an epoxy compound | — | 1995-10-03 |
| 5403503 | Refrigerator oil composition for hydrogen-containing hydrofluorocarbon refrigerant | Hiromichi Seiki | 1995-04-04 |