Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6960118 | Surface roughening treatment method of object being treated, and apparatus therefor | — | 2005-11-01 |
| 5237746 | Method of preparing cylindrical aluminum substrate for electrophotographic photoreceptor | Yasuo Soyama, Katsuji Sakata | 1993-08-24 |
| 4972569 | Method for rotatingly transferring hollow cylindrical articles | Ryuuji Nakayama, Tadashi Umehara, Jiro Taguti | 1990-11-27 |
| 4680246 | Method for producing an electrophotographic element | Hironobu Iwanaga | 1987-07-14 |
| 4299719 | Deoxidizer | Isao Kawakami, Masami Nishihara | 1981-11-10 |