Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4826035 | Pressure-regulating device for use in storage, transportation and disposal of hazardous wastes | Osamu Suzuki, Kanjiro Ishizaki, Akira Asami | 1989-05-02 |
| 4774045 | Concrete structural member and method for manufacture thereof | Takashi Tsubahara, Takafumi Naito, Seiji Kaneko, Yasunori Matsuoka, Takefumi Shindo | 1988-09-27 |