Issued Patents All Time
Showing 51–57 of 57 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5938897 | Method of manufacturing phase-shifting photomask blank | Akihiko Isao, Susumu Kawada, Yoshihiro Saito, Tsuneo Yamamoto, Nobuyuki Yoshioka +2 more | 1999-08-17 |
| 5736267 | Transparent conductive film and method for its production, and sputtering target | Akira Mitsui, Kazuo Sato, Masami Miyazaki, Junichi Ebisawa, Yasuo Hayashi +2 more | 1998-04-07 |
| 5605776 | Phase-shifting photomask blank, phase-shifting photomask, and method of manufacturing them | Akihiko Isao, Susumu Kawada, Nobuyuki Yoshioka, Kazuyuki Maetoko | 1997-02-25 |
| 5354446 | Ceramic rotatable magnetron sputtering cathode target and process for its production | Otojiro Kida, Akira Mitsui | 1994-10-11 |
| 5102629 | Field formation apparatus | Kiyoshi Shigeoka | 1992-04-07 |
| 4705763 | High zirconia fused refractory product | Kiyoharu Kuwabara, Kohzo Sakai, Toshihiro Ishino | 1987-11-10 |
| 4684737 | Process for producing substituted phthalic acid compounds | Hiroshi Horino, Michiro Ohnaka, Yoshiko Ikeno | 1987-08-04 |