Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5028660 | Method for modifying the surface of polycarbonate resin | Rikizo Kobashi, Hiroyuki Enomoto, Yasushi Hayasaki, Toyohisa Kobayashi, Shingo Yamazaki | 1991-07-02 |
| 4929685 | Method for modifying the surface of polycarbonate resin | Rikizo Kobashi, Hiroyuki Enomoto, Yasushi Hayasaki, Toyohisa Kobayashi, Shingo Yamazaki | 1990-05-29 |
| 4332689 | Water base lubricant composition | Yoshiharu Tanizaki, Kenichiro Minagawa, Kiyomitu Watanabe | 1982-06-01 |