Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4870221 | Oil-filled capacitor | Atsushi Sato, Shigenobu Kawakami, Hideyuki Dohi | 1989-09-26 |
| 4816064 | Triazine derivatives, herbicidal composition containing them, and method of controlling growth of undesired vegetation by using same | Kazuhiko Konno, Kouichi Araki, Norio Sasaki, Mitsuru Hikido, Kiyoshi Sugaya | 1989-03-28 |
| 4803238 | Polymer composition | Atsushi Sato, Shigenobu Kawakami, Eiichi Matsuzaka, Satoshi Narui | 1989-02-07 |
| 4802058 | Novel method for refining electrical insulating oil | Shigenobu Kawakami, Hideyuki Dohi, Atsushi Sato | 1989-01-31 |