Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889715 | Composition containing organogermanium compound and immunity adjusting agent comprising the composition | Kiichi Sawai, Masayasu Kurono, Juichi Awaya, Hideaki Ninomiya | 1989-12-26 |
| 4874481 | N,N'-diphenylbenzidine polymer and method of producing the same | Tetsuro Suzuki, Masao Yoshikawa | 1989-10-17 |
| 4803871 | Inspection device for inspecting projections on the surface of parts | Osamu Harada, Souhei Ikeda, Yoshihisa Watanabe, Yoshihisa Tsuji | 1989-02-14 |