Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7282308 | Phase shifter film and process for the same | Akihiko Isao, Nobuyuki Yoshioka, Kazuyuki Maetoko | 2007-10-16 |
| 7090947 | Phase shifter film and process for the same | Akihiko Isao, Nobuyuki Yoshioka, Kazuyuki Maetoko | 2006-08-15 |
| 6689515 | Phase-shifting photomask blank, phase-shifting photomask, method for producing them and apparatus for manufacturing the blank | Nobuyuki Yoshioka, Akihiko Isao, Tsuneo Yamamoto, Jun Amano, Ryoichi Kobayashi | 2004-02-10 |
| 6569577 | Phase-shift photo mask blank, phase-shift photo mask and method for fabricating semiconductor devices | Akihiko Isao, Shuichiro Kanai, Nobuyuki Yoshioka, Kazuyuki Maetoko | 2003-05-27 |
| 6228541 | Phase-shifting photomask blank, phase-shifting photomask, method for producing them and apparatus for manufacturing the blank | Akihiko Isao, Tsuneo Yamamoto, Jun Amano, Ryoichi Kobayashi, Nobuyuki Yoshioka | 2001-05-08 |
| 5952128 | Phase-shifting photomask blank and method of manufacturing the same as well as phase-shifting photomask | Akihiko Isao, Yoshihiro Saito, Tsuneo Yamamoto, Atsushi Hayashi, Nobuyuki Yoshioka +2 more | 1999-09-14 |
| 5938897 | Method of manufacturing phase-shifting photomask blank | Akihiko Isao, Yoshihiro Saito, Tsuneo Yamamoto, Atsushi Hayashi, Nobuyuki Yoshioka +2 more | 1999-08-17 |
| 5605776 | Phase-shifting photomask blank, phase-shifting photomask, and method of manufacturing them | Akihiko Isao, Atsushi Hayashi, Nobuyuki Yoshioka, Kazuyuki Maetoko | 1997-02-25 |
| 5482799 | Phase shift mask and manufacturing method thereof | Akihiko Isao, Nobuyuki Yoshioka | 1996-01-09 |
| 5103551 | Machine for holding workpiece | Kinichi Tamura, Yoshitada Sekine, Kazuyoshi Abe, Ryosuke Ishikawa, Fumiki Yokota | 1992-04-14 |
| 5010634 | Vehicle assembly method and apparatus | Satoshi Uemura, Yoshitada Sekine, Tatsuo Miyauchi | 1991-04-30 |
| 5005277 | Automated assembly arrangement for vehicle body and method of assembly | Satoshi Uemura, Yoshitada Sekine, Tatsuo Miyauchi | 1991-04-09 |
| 4962917 | Machine for holding workpiece | Kinichi Tamura, Yoshitada Sekine, Kazuyoshi Abe, Ryosuke Ishikawa, Fumiki Yokota | 1990-10-16 |
| 4811935 | Machine for holding workpiece | Kinichi Tamura, Yoshitada Sekine, Kazuyoshi Abe, Ryosuke Ishikawa, Fumiki Yokota | 1989-03-14 |
| 4691905 | Machine for holding workpiece | Kinichi Tamura, Yoshitada Sekine, Kazuyoshi Abe, Ryosuke Ishikawa, Fumiki Yokota | 1987-09-08 |