Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6838643 | Method and apparatus for performing baking treatment to semiconductor wafer | Shouzou Kobayashi, Takamitsu Furukawa, Keisuke Tanaka, Kouhei Shimoyama, Akira Watanabe +3 more | 2005-01-04 |
| 6455438 | Fabrication method for a semiconductor device | Azusa Yanagisawa, Koki Muto, Katsuo Oshima, Akira Watanabe, Akihiko Nara +4 more | 2002-09-24 |
| 4824254 | Alignment marks on semiconductor wafers and method of manufacturing the marks | Hiroshi Ohtsuka, Yoshio Itoh, Hisamitsu Mitsutomi | 1989-04-25 |
| 4640888 | Alignment mark on a semiconductor and a method of forming the same | Yoshio Itoh, Hiroshi Ohtsuka, Norio Moriyama | 1987-02-03 |