Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8474479 | Multifunction relief valve and airplane emergency hydraulic power source unit having the same | Hideki Niwa | 2013-07-02 |
| 8215927 | Fluid pressure pump unit | Hideki Niwa | 2012-07-10 |
| 5034558 | Process for purifying methyl methacrylate | Kouhei Okamura, Masao Kobayashi | 1991-07-23 |
| 4331824 | Process for preparation of high purity isobutylene | Minoru Ikeda, Kazutaka Inoue | 1982-05-25 |
| 4269705 | Method for removing chromium ions from aqueous solutions of organic acids | Hideo Matsuzawa, Kazuya Okada, Minoru Ikeda | 1981-05-26 |