Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5326486 | Lubricating oil composition | Kazuyuki Watanabe, Hidenori Kaya, Takashi Hayashi, Kenji Shimamoto, Masahide Tanaka +1 more | 1994-07-05 |
| 5294356 | Polycarbonates, uses thereof, processes for preparing and purifying same | Masahide Tanaka, Yoshihisa Kiso, Kazunori Takahata, Tetsuo Hayashi, Kenji Shimamoto +2 more | 1994-03-15 |