Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11551915 | Method of manufacturing ring-shaped member and ring-shaped member | Satoshi Fujii | 2023-01-10 |
| 11545345 | Protective material ring | Satoshi Fujii | 2023-01-03 |
| 11380525 | Ring for electrode | Satoshi Fujii | 2022-07-05 |
| 11348764 | Electrode ring | Satoshi Fujii | 2022-05-31 |
| 10984988 | Method of manufacturing ring-shaped member and ring-shaped member | Satoshi Fujii | 2021-04-20 |
| 10580621 | Electrode Plate | Satoshi Fujii | 2020-03-03 |
| 10553405 | Ring-shaped electrode | Satoshi Fujii | 2020-02-04 |
| 8524001 | Silicon wafer and method for producing the same | Katsuhiko Nakai, Masamichi Ohkubo | 2013-09-03 |
| 8241421 | Epitaxial wafer and production method thereof | Katsuhiko Nakai, Timo Mueller, Wilfried von Ammon, Martin Weber | 2012-08-14 |
| 8043929 | Semiconductor substrate and method for production thereof | Josef X. Brunner, Hiroyuki Deai, Martin Grassl, Atsuki Matsumura, Wilfried von Ammon | 2011-10-25 |
| 7470323 | Process for producing p-doped and epitaxially coated semiconductor wafers from silicon | Wilfried von Ammon, Katsuhiko Nakai, Martin Weber, Herbert Schmidt | 2008-12-30 |
| 7208043 | Silicon semiconductor substrate and preparation thereof | Akiyoshi Tachikawa | 2007-04-24 |
| 7204887 | Wafer holding, wafer support member, wafer boat and heat treatment furnace | Keisuke Kawamura, Tsutomu Sasaki, Atsuki Matsumura, Isao Hamaguchi, Yoshiharu Inoue +2 more | 2007-04-17 |
| 6805742 | Silicon semiconductor substrate and process for producing the same | Akiyoshi Tachikawa, Kazunori Ishisaka | 2004-10-19 |
| 6617034 | SOI substrate and method for production thereof | Isao Hamaguchi, Atsuki Matsumura, Keisuke Kawamura, Takayuki Yano, Yoichi Nagatake | 2003-09-09 |
| 6548886 | Silicon semiconductor wafer and method for producing the same | Masami Hasebe, Katsuhiko Nakai, Hikaru Sakamoto, Wataru Ohashi, Taizo Hoshino +1 more | 2003-04-15 |
| 6080237 | Method for production of dislocation-free silicon single crystal | Toshio Iwasaki, Shin-ichi Fujimoto, Hiroshi Isomura, Takayoshi Ishida, Michiharu Tamura | 2000-06-27 |
| 5704974 | Growth of silicon crystal from melt having extraordinary eddy flows on its surface | Koji Izunome, Souroku Kawanishi, Shinji Togawa, Hitoshi Sasaki, Shigeyuki Kimura | 1998-01-06 |
| 5700320 | Growth of silicon single crystal having uniform impurity distribution along lengthwise or radial direction | Koji Izunome, Souroku Kawanishi, Shinji Togawa, Hitoshi Sasaki, Shigeyuki Kimura | 1997-12-23 |
| 5683504 | Growth of silicon single crystal | Koji Izunome, Souroku Kawanishi, Shinji Togawa, Hitoshi Sasaki, Shigeyuki Kimura | 1997-11-04 |