Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4830101 | Aluminum heat exchanger and method for producing aluminum heat exchanger | Toshio Ohara, Masayoshi Nishikawa, Tutomu Niwa, Takao Ogino, Ryosuke Sako +1 more | 1989-05-16 |
| 4821531 | Refrigerant evaporator | Yoshiyuki Yamauchi, Toshio Ohhara, Shinji Ogawa, Isao Kuroyanagi, Haruhiko Otsuka +1 more | 1989-04-18 |