Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4548186 | Method and device for preheating an engine or an engine intake air | Katsuhiko Yamaji, Yasushi Nakata, Shigeyuki Kawai, Koji Kageyama, Yasushi Okazaki | 1985-10-22 |
TH
Tatumi Hagihara
Sekisui Kagaku Kogyo: 1 patents #148 of 395Top 40%
Overall (All Time): #4,023,375 of 4,157,543Top 100%
1
Patents All Time