Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8498136 | AC-DC converter and compressor driving apparatus and air conditioning apparatus using the same | Yosuke Shinomoto, Kazunori Sakanobe, Hideki Takahara, Satoshi Azuma | 2013-07-30 |
| 6687139 | Inverter control apparatus | Makoto Tanikawa, Takahiro Ishigami, Yoshihiko Kikkawa, Hitoshi Tanifuji, Yoshihiro Iwasaki +2 more | 2004-02-03 |
| 5946192 | Power transistor module packaging structure | Takahiro Ishigami, Hitoshi Tanifuji, Yoshihiko Kikkawa, Yoshihiro Iwasaki, Hiroaki Suzuki +2 more | 1999-08-31 |
| 5575326 | Indoor unit of air conditioner | Yasutoshi Asami | 1996-11-19 |
| 5536336 | Method of phosphating metal surfaces and treatment solution | Mikio Nakatsukasa | 1996-07-16 |
| 5456810 | Methods of measuring and controlling activity of zinc phosphate treatment solution | Tamotsu Sobata | 1995-10-10 |
| 5372743 | Surfactant composition, degreasing composition and degreasing bath | Satoshi Miyamoto, Kaoru Komiya | 1994-12-13 |
| 5244512 | Method for treating metal surface with zinc phosphate | Minoru Ishida, Asao Mochizuki, Haruo Kojima | 1993-09-14 |