Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6006528 | Air conditioning system | Hidetoshi Arima, Nobuhiro Idei, Kazuhiro Shimura, Naohito Sakamoto, Toshio Kubo +2 more | 1999-12-28 |
| 4894998 | Absorption system hot and cold water supply apparatus | Toshiyuki Kaneko, Shigenori Tateshita, Norio Sawada, Takaki Iwaya | 1990-01-23 |
| 4693916 | Method of depositing a silicon dioxide film | Hirotsugu Nagayama, Hideo Kawahara | 1987-09-15 |
| 4468420 | Method for making a silicon dioxide coating | Hideo Kawahara, Hirotsugu Nagayama | 1984-08-28 |