Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5353879 | Door having smoke reducing apparatus associated therewith | Shigeo Watanabe, Kenji Okazaki, Teruo Yamada | 1994-10-11 |
| 5263317 | Exhaust gas purifying apparatus for automobile diesel engine | Shigeo Watanabe, Katsuharu Kinoshita, Hisashi Matsunaga | 1993-11-23 |
| 5167813 | Apparatus for producing a functionally gradient material | Masashi Iwata, Won-Deok Yi, Shigeo Watanabe, Norio Ota | 1992-12-01 |