Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5677377 | Polypropylene lining | Takafumi Shimada, Ryuji Yoshiyama, Kenji Iwasaki, Tatsuyuki Nishikawa, Takayoshi Kawaoka | 1997-10-14 |
| 5677378 | Polypropylene lining | Takafumi Shimada, Ryuji Yoshiyama, Kenji Iwasaki, Tatsuyuki Nishikawa, Takayoshi Kawaoka | 1997-10-14 |
| 5616290 | Gas-liquid contacting apparatus | Makiichi Ishihara, Takakazu Sunada, Naohiko Ukawa, Toru Takashina, Yukio Kita +4 more | 1997-04-01 |
| 5605655 | Gas-liquid contacting apparatus | Makiichi Ishihara, Takakazu Sunada, Naohiko Ukawa, Toru Takashina, Yukio Kita +4 more | 1997-02-25 |