Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5332517 | Method for producing carbonaceous powder for electrorheological fluid | Takayuki Torii, Takashi Haraoka, Katsuhiro Nagayama, Hitomi Hatano, Yuichi Ishino +2 more | 1994-07-26 |
| 4637906 | Method of producing carbon materials | Ken Nagasawa | 1987-01-20 |
| 4449949 | Method of manufacturing a flat-type fluorescent display tube | Goro Eto, Atsushi Nishimuro | 1984-05-22 |