Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4881026 | Method and apparatus for diagnosing abnormal state of sodium (NA)--sulfur (S) cell | Yasumasa Ishida, Hiroyuki Kawamoto, Motoi Wada, Hisamitu Hatoh, Yoshiteru Miyatake +1 more | 1989-11-14 |
| 4855106 | Low alloy steels for use in pressure vessel | Masaaki Katsumata, Isamu Takagi, Tadamichi Sakai, Yoji Matsumoto, Hideaki Ohtsu +2 more | 1989-08-08 |
| 4847435 | Process for the recovery of high-purity m-ethylphenol | Keizo Kase, Tsutomu Idai, Kazumasa Ishii | 1989-07-11 |
| 4801037 | Opening/closing device for a mouth of a container and process for making the same | Mitsuharu Hayashida, Kazuo Sasaki, Nobusige Yasui | 1989-01-31 |