Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5274425 | Toner sealing material | Yasuhiro Fukumoto, Chiaki Kato, Masaya Nishi | 1993-12-28 |
| 4272351 | Apparatus for electrolytic etching | Kazuo Sawada, Shuzo Nagai, Takao Ogino, Seiji Watabe | 1981-06-09 |
| 4220508 | Process for electrolytic etching | Kazuo Sawada, Shuzo Nagai, Takao Ogino, Seiji Watabe | 1980-09-02 |